UNITED STATES
				SECURITIES AND EXCHANGE COMMISSION
					WASHINGTON, D.C. 20549


						FORM N-CSR

		CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT
					INVESTMENT COMPANIES

			Investment Company Act file number 811-4066

					Cash Assets Trust
			(Exact name of Registrant as specified in charter)

					   380 Madison Avenue
					New York, New York 10017
			(Address of principal executive offices)  (Zip code)

					  Joseph P. DiMaggio
					  380 Madison Avenue
					New York, New York 10017
				(Name and address of agent for service)

		Registrant's telephone number, including area code:	(212) 697-6666


				Date of fiscal year end:	3/31

				Date of reporting period:	9/30/06

						FORM N-CSR

ITEM 1.  REPORTS TO STOCKHOLDERS.


                                   SEMI-ANNUAL
                                     REPORT

                               SEPTEMBER 30, 2006

                                     PACIFIC
                                CAPITAL FUNDS(R)
                                       OF
                                CASH ASSETS TRUST


                        PACIFIC CAPITAL CASH ASSETS TRUST
                            PACIFIC CAPITAL TAX-FREE
                                CASH ASSETS TRUST

                         PACIFIC CAPITAL U.S. GOVERNMENT
                          SECURITIES CASH ASSETS TRUST

  [LOGO OF THE PACIFIC CAPITAL FUNDS OF CASH ASSETS TRUST: A LION STANDING ON A
                  TWISTED ROPE AND SALE TO LEFT OF PACIFIC](R)

                                A CASH MANAGEMENT
                                   INVESTMENT



[LOGO OF THE PACIFIC
CAPITAL FUNDS OF CASH
ASSETS TRUST: A LION
STANDING ON A TWISTED
ROPE AND SALE TO
LEFT OF PACIFIC](R)

                                     PACIFIC
                                CAPITAL FUNDS(R)
                                       OF
                                CASH ASSETS TRUST

                               SEMI-ANNUAL REPORT

                                                               November 17, 2006

Dear Investor:

      We are pleased to provide you with the Semi-Annual  Report for The Pacific
Capital Funds of Cash Assets Trust for the six-month  period ended September 30,
2006.

      The enclosed  Semi-Annual  Report includes the three series of Cash Assets
Trust (the "Trust"): Pacific Capital Cash Assets Trust, Pacific Capital Tax-Free
Cash Assets Trust and Pacific  Capital U.S.  Government  Securities  Cash Assets
Trust and its two classes of shares: Original Shares and Service Shares.

      During the current six-month  reporting period, the U.S. economy continued
to grow at a relatively healthy,  albeit, slower pace. The growth in the economy
was  supported by moderate  core  inflation  and  generally  positive  corporate
earnings.  Counterbalancing  the  positive  factors  was what  appears to be the
beginning  of a slump  in the  housing  market  and  continued  weakness  in the
automotive sector.

      Citing a possible further slowdown in economic growth, the Federal Reserve
(the  "Fed")  voted to change the  course of its  monetary  policy.  At both the
August 8th and  September  20th  Federal  Open  Market  Committee  (the  "FOMC")
meetings,  the Fed  determined  to leave the  target on the  Federal  Funds rate
unchanged at 5.25%. In comments released with the August 8th decision,  the FOMC
said that  "economic  growth  has  slowed  over the  course of the year,  partly
reflecting  a  cooling  of the  housing  market"  though it  forecast  continued
expansion  "at a moderate  pace." This decision by the  policymakers  at the Fed
brought a temporary halt to the Fed's two-year  inflation  fighting policy which
had been marked by 17 consecutive interest rate hikes of 0.25% each.

      You may recall that at September 30, 2004,  short-term interest rates were
at the low level of 1.50%, compared to the Fed's current target of 5.25%. During
the  two-year  period,  the rise in  short-term  rates was welcome news to money
market  investors.  As mentioned  in previous  report  letters,  yields on money
market funds like those of the Trust, move in concert with rate policies pursued
by  the  Fed.  By  keeping  each  fund's  average  weighted  portfolio  maturity
relatively short, the Trust's Investment Adviser,  the Asset Management Group of
Bank of  Hawaii,  has been  able to take  advantage  of the  rise in  short-term
interest rates. As each portfolio's  short-term holdings matured, the funds were
well  positioned  to take  advantage of the higher  yields paid by  newly-issued
securities.  Each  of the  Trust's  portfolios  seeks  to  continue  to  provide
competitive returns to alternative  short-term investment  opportunities without
wavering from their conservative investment guidelines.

      Looking forward,  we are optimistic that each of the Pacific Capital Funds
of Cash Assets Trust will continue to provide investors with competitive returns
without compromising safety of principal.

      All those  associated  with the  management  of your cash reserves wish to
thank  you for the  continued  support  and  confidence  you have  placed in the
Pacific Capital Funds of Cash Assets Trust.

                                   Sincerely,


/s/ Diana P. Herrmann                   /s/ Lacy B. Herrmann

Diana P. Herrmann                       Lacy B. Herrmann
President                               Founder and Chairman Emeritus


                      NOT A PART OF THE SEMI-ANNUAL REPORT


                                 PACIFIC CAPITAL
                                CASH ASSETS TRUST
                             SCHEDULE OF INVESTMENTS
                         SEPTEMBER 30, 2006 (UNAUDITED)



   PRINCIPAL
     AMOUNT       COMMERCIAL PAPER (55.8%)                                                      VALUE
- ---------------   ---------------------------------------------------------------------    --------------
                                                                                     
                  AUTOMOTIVE (4.0%)
                  ---------------------------------------------------------------------
   $ 20,000,000   Toyota Motor Credit Corp., 5.24%, 10/25/06 ..........................    $   19,930,133
                                                                                           --------------
                  BANKS (11.9%)
                  ---------------------------------------------------------------------
     20,000,000   Barclays US Funding Corp., 5.33%, 10/04/06 ..........................        19,991,117
     20,000,000   Citigroup Global Markets Holdings, Inc., 5.31%, 12/05/06 ............        19,808,250
     20,000,000   Societe Generale N.A., Inc., 5.26%, 11/20/06 ........................        19,854,028
                                                                                           --------------
                                                                                               59,653,395
                                                                                           --------------
                  BORROWING CONDUIT (4.0%)
                  ---------------------------------------------------------------------
     20,000,000   Abbey National North America Corp., 5.25%, 11/09/06 .................        19,886,250
                                                                                           --------------
                  BROKERAGE (11.9%)
                  ---------------------------------------------------------------------
     20,000,000   Bear Stearns & Co., 5.25%, 12/11/06 .................................        19,792,917
     20,000,000   Merrill Lynch 5.23%, 11/28/06 .......................................        19,831,478
     20,000,000   Morgan Stanley Dean Witter, 5.25%, 10/20/06 .........................        19,944,583
                                                                                           --------------
                                                                                               59,568,978
                                                                                           --------------
                  CONGLOMERATE (4.0%)
                  ---------------------------------------------------------------------
     20,000,000   General Electric Capital Corp., 5.20%, 11/24/06 .....................        19,844,000
                                                                                           --------------
                  FINANCE (12.0%)
                  ---------------------------------------------------------------------
     20,000,000   Calyon NA, Inc., 5.23%, 10/10/06 ....................................        19,973,825
     20,000,000   PACCAR Financial Corp., 5.24%, 11/15/06 .............................        19,869,000
     20,000,000   UBS Finance, 5.25%, 11/13/06 ........................................        19,874,583
                                                                                           --------------
                                                                                               59,717,408
                                                                                           --------------
                  INSURANCE (4.0%)
                  ---------------------------------------------------------------------
     20,000,000   Prudential Funding, 5.23%, 10/12/06 .................................        19,968,039
                                                                                           --------------
                  OIL SERVICES (4.0%)
                  ---------------------------------------------------------------------
     20,000,000   Chevron Funding Corp., 5.23%, 10/31/06 ..............................        19,912,833
                                                                                           --------------
                     Total Commercial Paper ...........................................       278,481,036
                                                                                           --------------
                  CERTIFICATE OF DEPOSIT (4.0%)
                  ---------------------------------------------------------------------
     20,000,000   Wells Fargo, 5.40%, 06/15/07 ........................................        20,000,000
                                                                                           --------------
                  CORPORATE NOTE (3.0%)
                  ---------------------------------------------------------------------
                  INSURANCE (3.0%)
                  ---------------------------------------------------------------------
     15,000,000   Peoples Benefit Life Insurance,
                     Variable Rate Note, 5.50%, 06/22/07* .............................        15,000,000
                                                                                           --------------
                  U.S. GOVERNMENT AGENCIES (8.0%)
                  ---------------------------------------------------------------------
     40,000,000   Federal National Mortgage Association
                  5.26%, 12/06/06 .....................................................        39,614,267
                                                                                           --------------






   PRINCIPAL
     AMOUNT       REPURCHASE AGREEMENTS (29.5%)                                                 VALUE
- ---------------   ---------------------------------------------------------------------    --------------
                                                                                     
                  Bank of America
   $ 29,629,000   5.20%, 10/02/06 .....................................................    $   29,629,000
                     (Proceeds of $29,641,839 to be received at maturity, Collateral:
                     $30,060,000 Federal Home Loan Bank 5.50% due 08/28/08; the
                     collateral fair value plus interest receivable equals $30,235,358)
                  Bank of America
     50,371,000   5.20%, 10/02/06 .....................................................        50,371,000
                     (Proceeds of $50,392,827 to be received at maturity, Collateral:
                     $50,000,000 Federal Home Loan Bank 5.25% due 09/13/13; the
                     collateral fair value plus interest receivable equals $51,400,295)
                  Morgan Stanley Dean Witter
     67,000,000   5.05%, 10/02/06 .....................................................        67,000,000
                                                                                           --------------
                     (Proceeds of $67,028,196 to be received at maturity, Collateral:
                     $68,220,000 US Treasury Note 3.50% due 05/31/07; the
                     collateral fair value plus interest receivable equals $68,373,054)
                  Total Repurchase Agreements .........................................       147,000,000
                                                                                           --------------


     SHARES       INVESTMENT COMPANY (0.1%)
- ---------------   ---------------------------------------------------------------------
                                                                                  
        541,153   JP Morgan U.S. Government Money Market Fund, Capital Shares                     541,153
                                                                                           --------------
                  Total Investments (Amortized Cost $500,636,456**)             100.4%        500,636,456
                  Other assets less liabilities ...................              (0.4)         (1,783,315)
                                                                                -----      --------------
                  NET ASSETS ......................................             100.0%     $  498,853,141
                                                                                =====      ==============


*     Illiquid security. Considered illiquid because it may not be sold, and may
      be redeemed only upon at least ninety days' notice to the issuer.  As this
      security is a variable rate note,  the rate shown  represents  the rate in
      effect at September 30, 2006, and the maturity date reflects the next rate
      change date. Represents 3.0% of net assets.
**    Cost for Federal income tax and financial reporting purposes is identical.

                                                                      PERCENT OF
                  PORTFOLIO DISTRIBUTION (UNAUDITED)                   PORTFOLIO
                  ----------------------------------                  ----------
                  Commercial Paper ................................      55.6%
                  Certificate of Deposit ..........................       4.0
                  Corporate Note ..................................       3.0
                  U.S. Government Agencies ........................       7.9
                  Repurchase Agreements ...........................      29.4
                  Investment Company ..............................       0.1
                                                                      ----------
                                                                        100.0%
                                                                      ==========

                 See accompanying notes to financial statements.



                                 PACIFIC CAPITAL
                           TAX-FREE CASH ASSETS TRUST
                             SCHEDULE OF INVESTMENTS
                         SEPTEMBER 30, 2006 (UNAUDITED)




                                                                              RATING
   PRINCIPAL                                                                  MOODY'S/
     AMOUNT       MUNICIPAL BONDS (99.5%)                                       S&P             VALUE
- ---------------   ---------------------------------------------------------  ----------    --------------
                                                                                  
                  ALASKA (0.3%)
                  ---------------------------------------------------------
                  Anchorage, AK Electric Utility Revenue Senior Lien-
                     Municipal Light & Power Series C, AMBAC
                     Insured, Prerefunded to 12/01/06 @ 102,
                     Collateral: US Government Securities
   $    500,000   5.125%, 12/01/26 ........................................   Aaa/AAA      $      511,008
                                                                                           --------------
                  COLORADO (3.9%)
                  ---------------------------------------------------------
                  Colorado Housing & Finance Authority Revenue Bonds,
                     Class I, Series A-1, Weekly Reset VRDO*, SPA: FHLB
      7,600,000   3.750%, 10/01/30 ........................................  VMIG1/A-1+         7,600,000
                                                                                           --------------
                  FLORIDA (0.4%)
                  ---------------------------------------------------------
                  Sarasota County, FL Utility System Revenue, FGIC
                     Insured, Prerefunded to 10/01/06 @102, Collateral:
                     State & Local Government Series
        750,000   5.250%, 10/01/25 ........................................   Aaa/AAA             765,000
                                                                                           --------------
                  HAWAII (25.6%)
                  ---------------------------------------------------------
                  City and County Honolulu, HI General Obligation
                     Bonds, Series-A - Escrowed to Maturity, Collateral:
                     US Government Securities
      2,870,000   5.600%, 04/01/07 ........................................  #Aaa/AA-           2,897,828
                  City and County Honolulu, HI General Obligation
                     Commercial Paper Issue W, LOC - Wesdeutsche
                     Landesbank
      5,000,000   3.500%, 12/06/06 ........................................   A-1+/P1           5,000,000
                  Hawaii State Department of Budget and Finance
                     Special Purpose Revenue (Queens Health System)
                     Series C, Weekly Reset VRDO*, AMBAC Insured,
                     SPA: Bank of America N.A.
     35,000,000   3.600%, 07/01/28 ........................................  MIG1/AAA          35,000,000
                  Hawaii State Department of Budget and Finance
                     Special Purpose Revenue Bonds (The Queen's Health
                     System) Series A,  Weekly Reset VRDO*, SPA:
                     Bank of Nova Scotia, AMBAC Insured
      4,600,000   3.590%, 07/01/29 ........................................  VMIG1/A-1+         4,600,000






                                                                              RATING
   PRINCIPAL                                                                  MOODY'S/
     AMOUNT       MUNICIPAL BONDS (CONTINUED)                                   S&P             VALUE
- ---------------   ---------------------------------------------------------  ----------    --------------
                                                                                  
                  HAWAII (CONTINUED)
                  ---------------------------------------------------------
                  Hawaii State General Obligation Series CN, FGIC
                     Insured, Escrowed to Maturity, Prerefunded to
                     03/01/07 @102, Collateral: US Government
                     Securities,
   $  1,750,000   5.250%, 03/01/10 ........................................   Aaa/AAA      $    1,795,854
                                                                                           --------------
                                                                                               49,293,682
                                                                                           --------------
                  ILLINOIS (4.0%)
                  ---------------------------------------------------------
                  Chicago, IL  General Obligation Bonds, Park District,
                     MBIA Insured,  Prerefunded to 01/01/07 @101,
                     Collateral: State & Local Government Series
      1,145,000   5.400%, 01/01/09 ........................................   Aaa/AAA           1,162,061
                  Chicago, IL General Obligation Bonds, Series B,
                     Weekly Reset VRDO*, SPA: Landesbank Baden-
                     Wurttemberg FGIC Insured
      3,000,000   3.740%, 01/01/37 ........................................  VMIG1/A-1+         3,000,000
                  Chicago IL Housing Authority Capital Program Revenue,
                     Escrowed to Maturity, Collateral: State & Local
                     Government Series 100%, Prerefunded
      2,185,000   5.000%, 07/01/07 ........................................   Aa3/NR            2,208,117
                  Cook County, IL General Obligation Capital
                     Improvement  - Prerefunded to 11/15/06 @101,
                     Collateral: US Government Securities, FGIC Insured
      1,250,000   5.875%, 11/15/22 ........................................   Aaa/AAA           1,266,022
                                                                                           --------------
                                                                                                7,636,200
                                                                                           --------------
                  MARYLAND (0.6%)
                  ---------------------------------------------------------
                  Montgomery County, MD Public Improvement Series
                     General Obligation, Escrowed to Maturity,
                     Prerefunded 05/01/07 @102, Collateral: State &
                     Local Government Series
      1,085,000   5.375%, 05/01/13 ........................................   Aaa/AAA           1,116,379
                                                                                           --------------
                  MASSACHUSETTS (0.4%)
                  ---------------------------------------------------------
                  Massachusetts Health & Educational Facilities
                     Authority Revenue Wellesley College Issue E,
                     Weekly Reset VRDO*
        690,000   3.800%, 07/01/22 ........................................   Aa1/AA+             690,000
                                                                                           --------------






                                                                              RATING
   PRINCIPAL                                                                  MOODY'S/
     AMOUNT       MUNICIPAL BONDS (CONTINUED)                                   S&P             VALUE
- ---------------   ---------------------------------------------------------  ----------    --------------
                                                                                  
                  MICHIGAN (9.9%)
                  ---------------------------------------------------------
                  Detroit, MI Sewer Disposal Revenue Series A, MBIA
                     Insured, Escrowed to Maturity, Prerefunded to
                     07/01/07 @101, Collateral: State & Local
                     Government Series 100%
   $    250,000   5.000%, 07/01/11 ........................................   Aaa/AAA      $      254,705
                  Eastern Michigan University, MI University Revenue
                     Bonds, Daily Reset VRDO*, FGIC Insured,
                     SPA: FGIC-SPI
      4,760,000   3.850%, 06/01/27 ........................................  Aaa/A-1+           4,760,000
                  Michigan State Trunk Line, Series A, Revenue Bond,
                     Prerefunded to 11/01/06 @101, FGIC Insured,
                     Collateral: State & Local Government Series
      1,500,000   5.625%, 11/01/26 ........................................   Aaa/AAA           1,517,909
                  Northern Michigan University Revenue Bonds,
                     Daily Reset VRDO* SPA - DEPFA Bank PLC,
                     AMBAC Insured
      1,000,000   3.850%, 12/01/35 ........................................   Aaa/AAA           1,000,000
                  Northern Michigan University Revenue Bonds, Daily
                     Reset VRDO*, FGIC Insured, SPA: FGIC-SPI
      4,210,000   3.850%, 06/01/31 ........................................  VMIG1/A-1+         4,210,000
                  Rochester, MI Community School District General
                     Obligation, MBIA Insured, Escrowed to Maturity,
                     Prerefunded 05/01/07 @100, Collateral: State &
                     Local Government Securities 100%
      7,315,000   5.250%, 05/01/15 ........................................  #Aaa/AAA           7,383,816
                                                                                           --------------
                                                                                               19,126,430
                                                                                           --------------
                  MISSISSIPPI (0.6%)
                  ---------------------------------------------------------
                  Mississippi State Capital Improvement General
                     Obligation, Escrowed to Maturity, Collateral: US
                     Government Securities 100%, Prerefunded
      1,220,000   5.500%, 11/01/06 ........................................   #Aaa/AA           1,221,826
                                                                                           --------------
                  MISSOURI (14.6%)
                  ---------------------------------------------------------
                  Kansas City, MO Industrial Development Authority
                     Revenue Bonds, (Ewing Marion Kaufman
                     Foundation), Daily Reset VRDO*
      7,110,000   3.850%, 04/01/27 ........................................   NR/A-1+           7,110,000
        450,000   3.850%, 04/01/27 ........................................   NR/A-1+             450,000






                                                                              RATING
   PRINCIPAL                                                                  MOODY'S/
     AMOUNT       MUNICIPAL BONDS (CONTINUED)                                   S&P             VALUE
- ---------------   ---------------------------------------------------------  ----------    --------------
                                                                                  
                  MISSOURI (CONTINUED)
                  ---------------------------------------------------------
                  Missouri State, Health & Educational Facilities Authority
                     Revenue Bonds (St. Louis University), Series B,
                     Daily Reset VRDO*, SPA: Bank of America N.A.
   $  5,410,000   3.880%, 10/01/24 ........................................  VMIG1/A-1+    $    5,410,000
                  Missouri Sate Health & Educational Facilities Authority
                     Revenue (Washington University), Series B, SPA:
                     JP Morgan Chase Bank, Daily Reset VRDO*
      2,600,000   3.890%, 03/01/40 ........................................  VMIG1/A-1+         2,600,000
                  Missouri State, Health & Educational Facilities Authority
                     Revenue Bonds (Washington University), Series C,
                     Daily Reset VRDO*, SPA: JP Morgan Chase Bank
      2,800,000   3.850%, 09/01/30 ........................................  VMIG1/A-1+         2,800,000
                  Missouri State, Health & Educational Facilities Authority
                     Revenue Bonds (Washington University), Series D,
                     Daily Reset VRDO*, SPA: JP Morgan Chase Bank
      2,100,000   3.850%, 09/01/30 ........................................  VMIG1/A-1+         2,100,000
                  University of Missouri, Curators of the University of
                     Missouri System Facilities Revenue Bonds, Series
                     A, Daily Reset VRDO*
      4,000,000   3.890%, 11/01/32 ........................................  VMIG1/A-1+         4,000,000
                  University of Missouri University Revenue, Daily Reset
                     VRDO* System Facilities-Series B
      3,650,000   3.890%, 11/01/30 ........................................  VMIG1/A-1+         3,650,000
                                                                                           --------------
                                                                                               28,120,000
                                                                                           --------------
                  MONTANA (2.6%)
                  ---------------------------------------------------------
                  Montana State, Health Facilities Authority
                     Revenue Bonds, Series A, Weekly Reset VRDO*,
                     FGIC Insured SPA: Wells Fargo
      5,000,000   3.750%, 12/01/15 ........................................  VMIG1/A-1+         5,000,000
                                                                                           --------------
                  NEVADA (4.6%)
                  ---------------------------------------------------------
                  Clark County, NV Airport Revenue Bonds, Series C,
                     Weekly Reset VRDO*, FGIC Insured, SPA:
                     Landesbank Baden-Wurttemberg
      8,800,000   3.740%, 07/01/29 ........................................  VMIG1/A-1+         8,800,000
                                                                                           --------------






                                                                              RATING
   PRINCIPAL                                                                  MOODY'S/
     AMOUNT       MUNICIPAL BONDS (CONTINUED)                                   S&P             VALUE
- ---------------   ---------------------------------------------------------  ----------    --------------
                                                                                  
                  NEW JERSEY (1.3%)
                  ---------------------------------------------------------
                  New Jersey Economic Development Authority
                     Revenue 1st Mortgage-Cranes Mill-A, Escrowed
                     to Maturity, Prerefunded 02/01/07 @102,
                     Collateral:  US Government Securities
   $  1,400,000   7.500%, 02/01/27 ........................................   #Aaa/NR      $    1,456,381
                  New Jersey Economic Development Authority
                     Health Revenue 1st Mortgage - Winchester
                     Gardens- Series A - Prerefunded to 11/01/06
                     @102, Collateral: US Government Securities
      1,100,000   8.625%, 11/01/25 ........................................   #Aaa/NR           1,126,329
                                                                                           --------------
                                                                                                2,582,710
                                                                                           --------------
                  NEW YORK (8.7%)
                  ---------------------------------------------------------
                  Long Island, NY Power Authority Revenue Bonds,
                     Series 1A, Weekly Reset VRDO*, LOC:
                     80% Bayerische Landesbank 20%
                     Landesbank Baden-Wurttemberg
      9,000,000   3.750%, 05/01/33 ........................................  VMIG1/A-1+         9,000,000
                  New York, NY City Transitional Finance Authority
                     Revenue Bonds, Series 3, Daily Reset VRDO*,
                     SPA: Royal Bank of Canada
      7,800,000   3.870%, 11/01/22 ........................................  VMIG1/A-1+         7,800,000
                                                                                           --------------
                                                                                               16,800,000
                                                                                           --------------
                  NORTH CAROLINA (14.7%)
                  ---------------------------------------------------------
                  Charlotte, NC  Airport Revenue Bonds, Series A,
                     Weekly Reset VRDO*, MBIA Insured, SPA:
                     JP Morgan Chase
      8,520,000   3.730%,  07/01/16 .......................................  VMIG1/A-1+         8,520,000
                  Concord, NC Utility Systems Revenue Bonds,
                     Series B, Weekly Reset VRDO*, FSA Insured,
                     SPA: Wachovia Bank
      8,820,000   3.730%, 12/01/22 ........................................  VMIG1/NR           8,820,000
                  Durham, NC General Obligation Bonds
                     (Public Improvement Project), Weekly Reset
                     VRDO*, SPA: Wachovia Bank of North Carolina
      1,150,000   3.750%, 02/01/09 ........................................  VMIG1/A-1+         1,150,000
      2,975,000   3.750%, 02/01/11 ........................................  VMIG1/A-1+         2,975,000
      1,270,000   3.750%, 02/01/12 ........................................  VMIG1/A-1+         1,270,000
      1,475,000   3.750%, 02/01/13 ........................................  VMIG1/A-1+         1,475,000






                                                                              RATING
   PRINCIPAL                                                                  MOODY'S/
     AMOUNT       MUNICIPAL BONDS (CONTINUED)                                   S&P             VALUE
- ---------------   ---------------------------------------------------------  ----------    --------------
                                                                                  
                  NORTH CAROLINA (CONTINUED)
                  ---------------------------------------------------------
                  North Carolina East Municipal Power Agency
                     Power System Revenue Refunding -Series B -
                     Prerefunded to 01/01/07 @102, Collateral:
                     US Treasury Securities, MBIA Insured
   $  4,000,000   5.875%, 01/01/21 ........................................   Aaa/AAA      $    4,102,631
                                                                                           --------------
                                                                                               28,312,631
                                                                                           --------------
                  OHIO (1.3%)
                  ---------------------------------------------------------
                  Ohio Housing Finance Agency Mortgage Revenue
                     Bonds (Residential Mortgage), Series E-AMT,
                     Weekly Reset VRDO*, SPA: FHLB
      2,590,000   3.800%, 09/01/34 ........................................  VMIG1/NR           2,590,000
                                                                                           --------------
                  OREGON (0.5%)
                  ---------------------------------------------------------
                  Josephine County, OR School District #007 General
                     Obligation, FGIC Insured, Escrowed to Maturity,
                     Prerefunded 06/01/07 @100, Collateral:
                     US Government Securities
      1,000,000   5.700%, 06/01/13 ........................................   Aaa/AAA           1,014,314
                                                                                           --------------
                  TEXAS (2.4%)
                  ---------------------------------------------------------
                  Allen, TX Independent School District General
                     Obligation, Escrowed to Maturity,
                     Prerefunded 02/15/07 @100, Collateral:
                     US Government Securities, Permanent School
                     Fund-Guaranteed
      1,255,000   5.100%, 02/15/12 ........................................   Aaa/AAA           1,261,372
                  Austin, TX Utility System Revenue
                     Prerefunded-Combined-Series A - Escrowed
                     to Maturity, Collateral: State & Local
                     Government Series
      2,300,000   6.000%, 11/15/06 ........................................   Aaa/AAA           2,306,624
                  Denton, TX Utility System Revenue Refunding,
                     Series A, MBIA Insured, Prerefunded to 12/01/06
                     @100, Collateral: US Government Securities
      1,000,000   5.950%, 12/01/14 ........................................   Aaa/AAA           1,003,998
                                                                                           --------------
                                                                                                4,571,994
                                                                                           --------------






                                                                              RATING
   PRINCIPAL                                                                  MOODY'S/
     AMOUNT       MUNICIPAL BONDS (CONTINUED)                                   S&P             VALUE
- ---------------   ---------------------------------------------------------  ----------    --------------
                                                                                  
                  VIRGINIA (3.1%)
                  ---------------------------------------------------------
                  University of Virginia Revenue Bonds, Series A,
                     Weekly Reset VRDO*
   $  6,000,000   3.720%, 06/01/34 ........................................  VMIG1/A-1+    $    6,000,000
                                                                                           --------------
                  Total Municipal Bonds ...................................                   191,752,174
                                                                                           --------------


     Shares       INVESTMENT COMPANY (0.1%)
- ---------------   ---------------------------------------------------------
                                                                                    
        155,000   Goldman Sachs Financial Square Tax-Free
                       Money Market Fund Institutional Shares .............                       155,000
                                                                                           --------------
                  Total Investments (Amortized Cost
                     $191,907,174**) ......................................     99.6%         191,907,174
                  Other assets less liabilities ...........................      0.4              812,023
                                                                             ----------    --------------
                  NET ASSETS ..............................................    100.0%      $  192,719,197
                                                                             ==========    ==============


*     Variable  rate demand  obligations  (VRDOs) are payable upon demand within
      the  same day for  securities  with  daily  liquidity  or  seven  days for
      securities with weekly liquidity.
**    Cost for Federal income tax and financial reporting purposes is identical

                       PORTFOLIO DISTRIBUTION (UNAUDITED)
                       ----------------------------------

                                                                     PERCENTAGE
                                                                    OF PORTFOLIO
                                                                    ------------
Alaska                                                                      0.3%
Colorado                                                                    4.0
Florida                                                                     0.4
Hawaii                                                                     25.7
Illinois                                                                    4.0
Investment Company                                                          0.1
Maryland                                                                    0.6
Massachussetts                                                              0.4%
Michigan                                                                   10.0
Mississipi                                                                  0.6
Missouri                                                                   14.6
Montana                                                                     2.6
Nevada                                                                      4.6
New Jersey                                                                  1.3
New York                                                                    8.8%
North Carolina                                                             14.7
Ohio                                                                        1.3
Oregon                                                                      0.5
Texas                                                                       2.4
Virginia                                                                    3.1
                                                                          -----
                                                                          100.0%
                                                                          =====

                            PORTFOLIO ABBREVIATIONS:
                            ------------------------

AMBAC - American Municipal Bond Assurance Corp.
AMT - Alternative Minimum Tax
FGIC - Financial Guaranty Insurance Corporation
FHLB - Federal Home Loan Bank
FSA - Financial Security Assurance
IBC - Insured Bond Certificate
LOC - Letter of Credit
MBIA - Municipal Bond Investors Assurance
SPA - Standby Bond Purchase Agreement
SPI - Securities Purchase, Inc.
VRDO - Variable Rate Demand Obligation

                 See accompanying notes to financial statements.



                                 PACIFIC CAPITAL
                  U.S. GOVERNMENT SECURITIES CASH ASSETS TRUST
                             SCHEDULE OF INVESTMENTS
                         SEPTEMBER 30, 2006 (UNAUDITED)



   PRINCIPAL
     AMOUNT       U.S. GOVERNMENT AGENCIES (100.1%)                                             VALUE
- ---------------   ---------------------------------------------------------------------    --------------
                                                                                     
                  FEDERAL FARM CREDIT BANK (6.2%)
                  ---------------------------------------------------------------------
   $ 65,000,000   5.16%, 10/10/06 .....................................................    $   64,916,150
     20,000,000   5.04%, 02/27/07 .....................................................        19,582,800
                                                                                           --------------
                                                                                               84,498,950
                                                                                           --------------
                  FEDERAL HOME LOAN BANK (93.9%)
                  ---------------------------------------------------------------------
    174,000,000   4.75%, 10/02/06 .....................................................       173,977,042
    110,000,000   5.28%, 10/04/06 .....................................................       109,951,579
     27,000,000   5.24%, 10/06/06 .....................................................        26,980,339
     66,000,000   5.23%, 10/11/06 .....................................................        65,904,098
     22,000,000   5.13%, 10/13/06 .....................................................        21,962,343
     50,000,000   5.15%, 10/18/06 .....................................................        49,878,403
     95,000,000   5.12%, 10/20/06 .....................................................        94,743,289
     60,000,000   5.25%, 10/25/06 .....................................................        59,789,880
     78,000,000   5.15%, 10/27/06 .....................................................        77,710,165
     95,000,000   5.21%, 11/01/06 .....................................................        94,573,793
     20,000,000   5.15%, 11/08/06 .....................................................        19,891,383
     50,000,000   5.16%, 11/15/06 .....................................................        49,677,500
     95,000,000   5.15%, 11/17/06 .....................................................        94,361,877
     58,000,000   5.14%, 11/22/06 .....................................................        57,568,963
     21,431,000   5.15%, 11/24/06 .....................................................        21,265,606
     20,000,000   5.08%, 11/29/06 .....................................................        19,833,325
     33,000,000   5.15%, 12/08/06 .....................................................        32,679,295
     50,000,000   5.09%, 12/22/06 .....................................................        49,420,306
     95,000,000   5.08%, 12/27/06 .....................................................        93,833,113
     75,000,000   5.04%, 03/30/07 .....................................................        73,110,000
                                                                                           --------------
                                                                                            1,287,112,299
                                                                                           --------------
                     Total U.S. Government Agencies ...................................     1,371,611,249
                                                                                           --------------

     SHARES       INVESTMENT COMPANY (0.3%)
- ---------------   ---------------------------------------------------------------------
                                                                                  
      3,978,626   JP Morgan U.S. Government Money Market Fund, Capital Shares .........         3,978,626
                                                                                           --------------
                     Total Investments (Amortized Cost $1,375,589,875*) ....  100.4%        1,375,589,875
                     Other assets less liabilities .........................   (0.4)          (5,381,797)
                                                                              -----        --------------
                     NET ASSETS ............................................  100.0%       $1,370,208,078
                                                                              =====        ==============


*     Cost for Federal income tax and financial reporting purposes is identical.

                                                                      PERCENT OF
                  PORTFOLIO DISTRIBUTION (UNAUDITED)                   PORTFOLIO
                  ----------------------------------                  ----------
                  U.S. Government Agencies .........................     99.7%
                  Investment Company ...............................      0.3
                                                                      ----------
                                                                        100.0%
                                                                      ==========

                 See accompanying notes to financial statements.



                            THE PACIFIC CAPITAL FUNDS
                              OF CASH ASSETS TRUST
                      STATEMENTS OF ASSETS AND LIABILITIES
                         SEPTEMBER 30, 2006 (UNAUDITED)



                                                                                 CASH               TAX-FREE           GOVERNMENT
                                                                                 FUND                 FUND                FUND
                                                                            --------------       --------------       --------------
                                                                                                             
ASSETS:
    Investments at value and amortized cost (note 2) ................       $  353,636,456       $  191,907,174       $1,375,589,875
    Repurchase agreements (note 2) ..................................          147,000,000                   --                   --
    Interest receivable .............................................              437,507            1,527,826                5,706
    Other assets ....................................................               35,952               14,965               87,927
                                                                            --------------       --------------       --------------
       Total Assets .................................................          501,109,915          193,449,965        1,375,683,508
                                                                            --------------       --------------       --------------

LIABILITIES:
    Cash overdraft ..................................................                   --              124,914                   --
    Dividends payable ...............................................            1,927,759              483,693            4,837,810
    Adviser and Administrator fees payable ..........................              205,097               65,122              414,480
    Distribution fees payable .......................................               40,060               15,675              175,129
    Accrued expenses ................................................               83,858               41,364               48,011
                                                                            --------------       --------------       --------------
       Total Liabilities ............................................            2,256,774              730,768            5,475,430
                                                                            --------------       --------------       --------------
    NET ASSETS ......................................................       $  498,853,141       $  192,719,197       $1,370,208,078
                                                                            ==============       ==============       ==============

NET ASSETS CONSIST OF:
    Capital Stock - Authorized an unlimited number of shares,
       par value $0.01 per share ....................................       $    4,988,388       $    1,927,067       $   13,701,381
    Additional paid-in capital ......................................          493,863,573          190,781,858        1,356,505,166
    Accumulated net realized gain (loss) on investments .............                1,180               10,272                1,531
                                                                            --------------       --------------       --------------
                                                                            $  498,853,141       $  192,719,197       $1,370,208,078
                                                                            ==============       ==============       ==============

SHARES OF BENEFICIAL INTEREST:
    Original Shares Class:
       Net Assets ...................................................       $  325,655,401       $  126,607,674       $  445,909,939
                                                                            ==============       ==============       ==============
       Shares outstanding ...........................................          325,873,527          126,599,538          445,880,250
                                                                            ==============       ==============       ==============
       Net asset value per share ....................................       $         1.00       $         1.00       $         1.00
                                                                            ==============       ==============       ==============

    Service Shares Class:
       Net Assets ...................................................       $  173,197,740       $   66,111,523       $  924,298,139
                                                                            ==============       ==============       ==============
       Shares outstanding ...........................................          172,965,224           66,107,205          924,257,896
                                                                            ==============       ==============       ==============
       Net asset value per share ....................................       $         1.00       $         1.00       $         1.00
                                                                            ==============       ==============       ==============


                 See accompanying notes to financial statements.



                            THE PACIFIC CAPITAL FUNDS
                              OF CASH ASSETS TRUST
                            STATEMENTS OF OPERATIONS
                 SIX MONTHS ENDED SEPTEMBER 30, 2006 (UNAUDITED)



                                                                                CASH               TAX-FREE           GOVERNMENT
                                                                                FUND                 FUND                FUND
                                                                           --------------       --------------       --------------
                                                                                                            
INVESTMENT INCOME:

    Interest income .................................................      $   12,307,085       $    3,555,592       $   30,793,607
                                                                           --------------       --------------       --------------

EXPENSES:
    Investment Advis er fees (note 3) ...............................             872,512              305,728            1,991,826
    Administrator fees (note 3) .....................................             331,506               99,490              444,384
    Distribution fees (note 3) ......................................             216,544               99,066            1,011,990
    Trustees' fees and expenses .....................................              48,978               34,129               87,220
    Shareholders' reports ...........................................              24,955                3,536               16,141
    Insurance .......................................................              23,901                9,968               57,945
    Legal fees (note 3) .............................................              22,686               11,399               28,730
    Registration fees and dues ......................................              20,044                5,103               26,308
    Fund accounting fees ............................................              19,459               20,978               20,848
    Auditing and tax fees ...........................................              10,825                8,365               12,415
    Transfer and shareholder servicing agent fees ...................               5,280                5,271                5,293
    Custodian fees ..................................................               2,965                5,666                4,688
    Chief Compliance Officer (note 3) ...............................               2,278                2,278                2,278
    Miscellaneous ...................................................               8,755                4,097               22,859
                                                                           --------------       --------------       --------------
    Total expenses ..................................................           1,610,688              615,074            3,732,925
    Expenses paid indirectly (note 5) ...............................              (1,846)              (1,369)              (3,838)
                                                                           --------------       --------------       --------------
Net expenses ........................................................           1,608,842              613,705            3,729,087
                                                                           --------------       --------------       --------------
Net investment income ...............................................          10,698,243            2,941,887           27,064,520
Net realized gain (loss) from securities transactions ...............                  --                  172                   --
                                                                           --------------       --------------       --------------

Net change in net assets resulting from operations ..................      $   10,698,243       $    2,942,059       $   27,064,520
                                                                           ==============       ==============       ==============


                 See accompanying notes to financial statements.



                            THE PACIFIC CAPITAL FUNDS
                              OF CASH ASSETS TRUST
                       STATEMENTS OF CHANGES IN NET ASSETS



                                                            CASH FUND                                  TAX-FREE FUND
                                              --------------------------------------      --------------------------------------
                                               Six Months Ended                            Six Months Ended
                                              September 30, 2006        Year Ended        September 30, 2006        Year Ended
                                                 (unaudited)          March 31, 2006         (unaudited)          March 31, 2006
                                              ------------------     ---------------      ------------------     ---------------
                                                                                                     
INCREASE (DECREASE) IN NET ASSETS
   OPERATIONS:
   Net investment income ................      $    10,698,243       $    14,580,671       $     2,941,887       $     4,482,897
   Net realized gain (loss)
     from securities transactions .......                   --                 1,180                   172                10,100
                                               ---------------       ---------------       ---------------       ---------------
   Net change in net assets
     resulting from operations ..........           10,698,243            14,581,851             2,942,059             4,492,997
                                               ---------------       ---------------       ---------------       ---------------

DIVIDENDS TO SHAREHOLDERS
FROM NET INVESTMENT INCOME:
   Original Shares ......................           (6,988,064)           (9,721,572)           (1,852,029)           (1,704,092)
   Service Shares .......................           (3,710,179)           (4,859,099)           (1,089,858)           (2,778,805)
                                               ---------------       ---------------       ---------------       ---------------
   Total dividends to shareholders
     from net investment income .........          (10,698,243)          (14,580,671)           (2,941,887)           (4,482,897)
                                               ---------------       ---------------       ---------------       ---------------

CAPITAL SHARE TRANSACTIONS
(at $1.00 per share):
   Proceeds from shares sold:
   Original Shares ......................          443,270,516           772,407,051           114,061,178           223,627,397
   Service Shares .......................          264,945,636           498,998,950            69,798,778           165,033,651
                                               ---------------       ---------------       ---------------       ---------------
                                                   708,216,152         1,271,406,001           183,859,956           388,661,048
                                               ---------------       ---------------       ---------------       ---------------

   Reinvested dividends:
   Original Shares ......................              133,015               217,287                20,272                91,298
   Service Shares .......................            3,008,826             4,773,677               925,843             1,695,763
                                               ---------------       ---------------       ---------------       ---------------
                                                     3,141,841             4,990,964               946,115             1,787,061
                                               ---------------       ---------------       ---------------       ---------------

   Cost of shares redeemed:
   Original Shares ......................         (402,951,783)         (853,144,228)         (120,036,399)         (225,091,397)
   Service Shares .......................         (264,442,468)         (500,085,192)          (97,639,470)         (145,858,384)
                                               ---------------       ---------------       ---------------       ---------------
                                                  (667,394,251)       (1,353,229,420)         (217,675,869)         (370,949,781)
                                               ---------------       ---------------       ---------------       ---------------
Change in net assets
   from capital share transactions ......           43,963,742           (76,832,455)          (32,869,798)           19,498,328
                                               ---------------       ---------------       ---------------       ---------------
   Total change in net assets ...........           43,963,742           (76,831,275)          (32,869,626)           19,508,428

NET ASSETS:
   Beginning of period ..................          454,889,399           531,720,674           225,588,823           206,080,395
                                               ---------------       ---------------       ---------------       ---------------
   End of period* .......................      $   498,853,141       $   454,889,399       $   192,719,197       $   225,588,823
                                               ===============       ===============       ===============       ===============

* Includes undistributed (distributions
  in excess of) net investment income of:      $            --       $            --       $            --       $            --
                                               ===============       ===============       ===============       ===============


                                                     GOVERNMENT FUND
                                           ------------------------------------
                                            Six Months Ended
                                           September 30, 2006     Year Ended
                                              (unaudited)       March 31, 2006
                                           ------------------   ---------------
INCREASE (DECREASE) IN NET ASSETS
   OPERATIONS:
   Net investment income ................   $    27,064,520     $    33,279,020
   Net realized gain (loss)
     from securities transactions .......                --               2,274
                                            ---------------     ---------------
   Net change in net assets
     resulting from operations ..........        27,064,520          33,281,294
                                            ---------------     ---------------

DIVIDENDS TO SHAREHOLDERS
FROM NET INVESTMENT INCOME:
   Original Shares ......................        (9,424,725)        (12,231,234)
   Service Shares .......................       (17,639,795)        (21,047,786)
                                            ---------------     ---------------
   Total dividends to shareholders
     from net investment income .........       (27,064,520)        (33,279,020)
                                            ---------------     ---------------

CAPITAL SHARE TRANSACTIONS
(at $1.00 per share):
   Proceeds from shares sold:
   Original Shares ......................       723,737,323         892,335,436
   Service Shares .......................     1,381,263,250       3,155,652,101
                                            ---------------     ---------------
                                              2,105,000,573       4,047,987,537
                                            ---------------     ---------------

   Reinvested dividends:
   Original Shares ......................            72,704             139,115
   Service Shares .......................        14,437,107          21,010,927
                                            ---------------     ---------------
                                                 14,509,811          21,150,042
                                            ---------------     ---------------

   Cost of shares redeemed:
   Original Shares ......................      (707,320,692)       (817,340,270)
   Service Shares .......................    (1,358,648,236)     (2,867,454,460)
                                            ---------------     ---------------
                                             (2,065,968,928)     (3,684,794,730)
                                            ---------------     ---------------
Change in net assets
   from capital share transactions ......        53,541,456         384,342,849
                                            ---------------     ---------------
   Total change in net assets ...........        53,541,456         384,345,123

NET ASSETS:
   Beginning of period ..................     1,316,666,622         932,321,499
                                            ---------------     ---------------
   End of period* .......................   $ 1,370,208,078     $ 1,316,666,622
                                            ===============     ===============

* Includes undistributed (distributions
  in excess of) net investment income of:   $            --     $            --
                                            ===============     ===============


                 See accompanying notes to financial statements.



                            THE PACIFIC CAPITAL FUNDS
                              OF CASH ASSETS TRUST
                          NOTES TO FINANCIAL STATEMENTS
                         SEPTEMBER 30, 2006 (UNAUDITED)

1.    ORGANIZATION

      Cash  Assets  Trust  (the  "Trust")  was  organized  on May 7,  1984  as a
Massachusetts  business trust and is registered under the Investment Company Act
of 1940 (the "1940 Act") as an open-end investment company.

      The Trust consists of the following three investment  portfolios (referred
to  individually as a "Fund" and  collectively as the "Funds"):  Pacific Capital
Cash  Assets  Trust  ("Cash  Fund") (a  diversified  portfolio  which  commenced
operations  on December 5, 1984),  Pacific  Capital  Tax-Free  Cash Assets Trust
("Tax-Free  Fund") (a  non-diversified  portfolio which commenced  operations on
April 4, 1989), and Pacific Capital U.S. Government Securities Cash Assets Trust
("Goverment Fund") (a diversified  portfolio which commenced operations on April
4, 1989).  The Trust is authorized to issue for each Fund an unlimited number of
shares of $0.01 par value in two classes of shares;  the  Original  Shares Class
and the Service Shares Class.  The Original  Shares Class includes all currently
outstanding  shares of each Fund that were issued prior to January 20, 1995, the
date on which the Capital  structure  was changed to include two classes  rather
than one.  The two classes of shares are  substantially  identical,  except that
Service  Shares  bear the fees that are payable  under the Trust's  Distribution
Plan.

2.    SIGNIFICANT ACCOUNTING POLICIES

      The following is a summary of significant  accounting policies followed by
the Funds in the preparation of their financial statements.  The policies are in
conformity with accounting principles generally accepted in the United States of
America.

a)    PORTFOLIO  VALUATION:  Each Fund's portfolio  securities are valued by the
      amortized  cost method  permitted in  accordance  with Rule 2a-7 under the
      1940 Act, which, after considering accrued interest thereon,  approximates
      market. Under this method, a portfolio security is valued at cost adjusted
      for  amortization of premiums and accretion of discounts.  Amortization of
      premiums and accretion of discounts are included in interest income.

b)    SECURITIES   TRANSACTIONS  AND  RELATED  INVESTMENT   INCOME:   Securities
      transactions  are  recorded on the trade date.  Realized  gains and losses
      from  securities  transactions  are reported on the identified cost basis.
      Interest income is recorded daily on the accrual basis and is adjusted for
      amortization  of premiums  and  accretion of discounts as discussed in the
      preceding paragraph.

c)    DETERMINATION  OF NET ASSET VALUE AND  CALCULATION  OF  EXPENSES:  The net
      asset value per share for each class of the Fund's shares is determined as
      of 4:00 p.m.  New York time on each day that the New York  Stock  Exchange
      and the custodian are open by dividing the value of the assets of the Fund
      allocable to that class less Fund  liabilities  allocable to the class and
      any liabilities  charged directly to the class,  exclusive of surplus,  by
      the total number of shares of the class outstanding.

d)    MULTIPLE CLASS  ALLOCATIONS:  Investment  income,  realized and unrealized
      gains and losses, if any, and expenses other than class specific expenses,
      are allocated daily to each class of shares based




      upon the proportion of net assets of each class.  Class specific  expenses
      are borne by the affected class. Service fee payments under Rule 12b-1 are
      borne  solely by and charged to the Service  Shares based on net assets of
      that class.

e)    FEDERAL INCOME TAXES: It is the policy of each Fund to continue to qualify
      as a regulated  investment company by complying with the provisions of the
      Internal  Revenue Code applicable to certain  investment  companies.  Each
      Fund  intends  to make  distributions  of income  and  securities  profits
      sufficient to relieve it from all, or  substantially  all,  Federal income
      and excise taxes.

f)    REPURCHASE  AGREEMENTS:  It is each Fund's  policy to monitor  closely the
      creditworthiness  of all  firms  with  which  it  enters  into  repurchase
      agreements,  and to take possession of, or otherwise  perfect its security
      interest  in,  securities   purchased  under  agreements  to  resell.  The
      securities purchased under agreements to resell are marked to market every
      business day in order to compare the value of the collateral to the amount
      of the "loan" (repurchase  agreements being defined as "loans" in the 1940
      Act),  including the accrued interest earned thereon.  If the value of the
      collateral  is less  than  102% of the  loan  plus  the  accrued  interest
      thereon, additional collateral is required from the borrower.

g)    USE OF ESTIMATES:  The  preparation of financial  statements in conformity
      with  accounting  principles  generally  accepted in the United  States of
      America requires  management to make estimates and assumptions that affect
      the  reported   amounts  of  assets  and  liabilities  and  disclosure  of
      contingent assets and liabilities at the date of the financial  statements
      and the  reported  amounts of increases  and  decreases in net assets from
      operations during the reporting  period.  Actual results could differ from
      those estimates.

h)    RECLASSIFICATION  OF CAPITAL  ACCOUNTS:  Accounting  principles  generally
      accepted in the United States of America  require that certain  components
      of net assets relating to permanent  differences be  reclassified  between
      financial and tax reporting. These reclassifications have no effect on net
      assets or net asset value per share. On March 31, 2006, a reclassification
      was  made to  increase  (decrease)  undistributed  net  investment  income
      (distributions  in  excess  of net  investment  income),  accumulated  net
      realized gain (loss) on investments and additional paid-in capital for the
      Funds as follows:

                                                          Tax-Free   Government
                                            Cash Fund       Fund        Fund
                                            ---------    ---------   ----------
      Additional Paid-in Capital ........   $  13,438    $(107,877)   $  68,263
      Undistributed net investment income      13,438      107,877      (68,263)

      These reclassifications are primarily due to dividend redesignations.  Net
      assets were not affected by these changes.

i)    NEW ACCOUNTING  PRONOUNCEMENT:  On July 13, 2006, the Financial Accounting
      Standards Board ("FASB") released FASB  Interpretation  No. 48 "Accounting
      for Uncertainty in income Taxes" ("FIN



      48"). FIN 48 provides  guidance for how uncertain tax positions  should be
      recognized, measured, presented and disclosed in the financial statements.
      FIN 48 requires the  evaluation of tax  positions  taken or expected to be
      taken in the course of  preparing  the Trust's  tax  returns to  determine
      whether the tax positions are "more-likely-than-not" of being sustained by
      the  applicable  tax  authority.  Tax  positions  not  deemed  to meet the
      more-likely-than-not  threshold  would be  recorded  as a tax  benefit  or
      expense in the current  year.  Adoption  of FIN 48 is required  for fiscal
      years  beginning  after December 15, 2006 and is to be applied to all open
      tax years as of the effective date.  Management believes that the adoption
      of FIN 48 will have no impact on the financial statements of the Trust.

      In  September  2006,  FASB issued  FASB  Statement  No.  157,  "Fair Value
      Measurement"  ("SFAS  157"),  which  defines  fair  value,  establishes  a
      framework for measuring  fair value,  and expands  disclosures  about fair
      value measurements. SFAS 157 is effective for fiscal years beginning after
      November  15,  2007,  and  interim  periods  within  those  fiscal  years.
      Management is currently  evaluating  the effect of SFAS 157 on the Trust's
      financial statements.

3.    FEES AND RELATED PARTY TRANSACTIONS

a)    MANAGEMENT ARRANGEMENTS:

      The Asset Management  Group of Bank of Hawaii (the  "Adviser"),  serves as
Investment  Adviser  to the  Funds.  In this  role,  under  Investment  Advisory
Agreements,  the Adviser  supervises the Funds' investments and provides various
services. Aquila Investment Management LLC the ("Administrator"), a wholly-owned
subsidiary of Aquila  Management  Corporation,  the Trust's founder and sponsor,
serves as the Administrator for the Trust under  Administration  Agreements with
the Funds. The Administrator  provides all administrative  services to the Funds
other than those relating to the investment  portfolios.  Specific details as to
the  nature  and  extent  of the  services  provided  by  the  Adviser  and  the
Administrator  are  more  fully  defined  in the  Prospectus  and  Statement  of
Additional  Information of the Trust.  For their  services,  the Adviser and the
Administrator each receive a fee which is payable monthly and computed as of the
close of  business  each day on the net  assets  of each  Fund at the  following
annual rates:

      Cash  Fund - On net  assets  up to  $325  million,  the fee is paid to the
      Adviser  and the  Administrator  at the  annual  rate of 0.33% and  0.17%,
      respectively,  and on net assets  above that  amount at the annual rate of
      0.43% and 0.07%, respectively.

      Tax-Free  Fund - On net assets up to $95  million,  the fee is paid to the
      Adviser  and the  Administrator  at the  annual  rate of 0.27% and  0.13%,
      respectively,  and on net assets  above that  amount at the annual rate of
      0.33% and 0.07%, respectively.

      Government Fund - On net assets up to $60 million,  the fee is paid to the
      Adviser  and the  Administrator  at the  annual  rate of 0.27% and  0.13%,
      respectively,  and on net assets  above that  amount at the annual rate of
      0.33% and 0.07%, respectively.



      The Adviser and the Administrator each agrees that the above fees shall be
reduced,  but not below  zero,  by an amount  equal to its  proportionate  share
(determined on the basis of the respective fees computed as described  above) of
the amount,  if any, by which the total  expenses of a Fund in any fiscal  year,
exclusive of taxes,  interest and brokerage fees, shall exceed the lesser of (i)
2.5% of the first $30  million of average  annual net assets of the Fund plus 2%
of the next $70 million of such assets and 1.5% of its average annual net assets
in excess of $100  million,  or (ii) 25% of the Fund's total  annual  investment
income. The payment of the above fees at the end of any month will be reduced or
postponed  so that at no time will there be any  accrued  but  unpaid  liability
under this  expense  limitation.  Advisory  and  administrative  fees in a given
fiscal year may be recouped prior to the end of such year if interest rates were
to increase.  Contractual  reduction of fees,  if any, is calculated on a fiscal
year basis.  No such  reduction  in fees was  required  for the six months ended
September 30, 2006.

      Under a Compliance Agreement with the Administrator,  the Administrator is
compensated for Chief Compliance Officer related services provided to enable the
Trust to comply with Rule 38a-1 of the Investment Company Act of 1940.

b)    DISTRIBUTION AND SERVICE FEES:

      Each Fund has adopted a  Distribution  Plan (the "Plan")  pursuant to Rule
12b-1  under the 1940 Act.  A part of the Plan  authorizes  payment  of  certain
distribution or service fees by the Service Shares Class of the respective Fund.
Such payments are made to "Designated Payees" - broker-dealers,  other financial
institutions and service providers who have entered into appropriate  agreements
with the  Distributor  and which have rendered  assistance  in the  distribution
and/or retention of the respective  Fund's Service Shares or in the servicing of
Service Share accounts.  The total payments under this part of a Fund's Plan may
not exceed 0.25% of its average annual assets  represented by Service Shares. No
such payments will be made by the Original Share Class.  Specific  details about
each Plan are more fully defined in the  Prospectus  and Statement of Additional
Information of the Trust.

      Under   Distribution   Agreements,   Aquila   Distributors,    Inc.   (the
"Distributor")  serves as the exclusive  distributor of each Fund's  shares.  No
compensation or fees are paid to the Distributor for such share distribution.

c)    OTHER RELATED PARTY TRANSACTIONS:

      For the six months ended  September 30, 2006,  the following  amounts were
incurred for legal fees allocable to Hollyer Brady Barrett & Hines LLP,  counsel
to the Trust,  for legal  services in  conjunction  with the  respective  Fund's
ongoing operations:  Cash Fund $20,660;  Tax-Free Fund $10,612;  Government Fund
$25,757. The Secretary of the Trust is a Partner at that firm.



4.    GUARANTEES OF CERTAIN COMMERCIAL PAPER

      Various banks and other  institutions have issued  irrevocable  letters of
credit or guarantees for the benefit of the holders of certain commercial paper.
Payment at maturity of principal and interest of certain  commercial  paper held
by the Funds is supported by such letters of credit or guarantees.

5.    EXPENSES

      The Funds  have  negotiated  an  expense  offset  arrangement  with  their
custodian,  wherein they receive  credit toward the reduction of custodian  fees
and other expenses  whenever there are uninvested cash balances.  The Statements
of Operations reflect the total expenses before any offset, the amount of offset
and the net expenses. It is the general intention of the Funds to invest, to the
extent  practicable,  some or all of cash  balances in  income-producing  assets
rather than leave cash uninvested.

6.    PORTFOLIO ORIENTATION

      Since the Tax-Free Fund has a significant  portion of its  investments  in
obligations of issuers within Hawaii, it is subject to possible risks associated
with  economic,  political,  or legal  developments  or  industrial  or regional
matters  specifically  affecting Hawaii and whatever effects these may have upon
Hawaii issuers' ability to meet their obligations.

7.    INCOME TAX INFORMATION AND DISTRIBUTIONS

      The Funds  declare  dividends  daily from net  investment  income and make
payments monthly in additional shares at the net asset value per share, in cash,
or a combination of both, at the shareholder's option.

      The tax  character of  distributions  during  fiscal 2006 and 2005 were as
follows:



                                  Cash Fund                  Tax-Free Fund                 Government Fund
                         --------------------------    --------------------------    --------------------------
                             2006           2005           2006           2005           2006           2005
                         -----------    -----------    -----------    -----------    -----------    -----------
                                                                                  
Ordinary income .....    $14,497,718    $ 5,915,623    $        --    $        --    $33,395,289    $10,709,831
Net tax-exempt income             --             --      4,452,274      2,023,379             --             --
Capital gain ........             --             --             --             --             --             --
                         -----------    -----------    -----------    -----------    -----------    -----------
Total ...............    $14,497,718    $ 5,915,623    $ 4,452,274    $ 2,023,379    $33,395,289    $10,709,831
                         ===========    ===========    ===========    ===========    ===========    ===========


      As of March 31, 2006,  the components of  distributable  earnings on a tax
basis were as follows:



                                                                      Tax-Free         Government
                                                   Cash Fund            Fund              Fund
                                                --------------    --------------    --------------
                                                                           
Undistributed ordinary income ..............    $      926,889    $       10,100    $    1,406,955
Undistributed tax exempt income ............                --           286,616                --
Accumulated net realized loss on investments                --                --                --
                                                --------------    --------------    --------------
                                                $      926,889    $      296,716    $    1,406,955
                                                ==============    ==============    ==============




- --------------------------------------------------------------------------------

                                 PACIFIC CAPITAL
                                CASH ASSETS TRUST
                              FINANCIAL HIGHLIGHTS

- --------------------------------------------------------------------------------

FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD



                                                                            ORIGINAL SHARES
                                           ----------------------------------------------------------------------------
                                           Six Months
                                              Ended                             Year Ended March 31,
                                             9/30/06        -----------------------------------------------------------
                                           (unaudited)        2006         2005         2004         2003         2002
                                           -----------      -------      -------      -------      -------      -------
                                                                                              
Net asset value, beginning of period ....    $  1.00        $  1.00      $  1.00      $  1.00      $  1.00      $  1.00
                                             -------        -------      -------      -------      -------      -------
Income from investment operations:
  Net investment income+ ................       0.02           0.03         0.01         0.01         0.01         0.03
                                             -------        -------      -------      -------      -------      -------
Less distributions:
  Dividends from net investment income ..      (0.02)         (0.03)       (0.01)       (0.01)       (0.01)       (0.03)
                                             -------        -------      -------      -------      -------      -------
Net asset value, end of period ..........    $  1.00        $  1.00      $  1.00      $  1.00      $  1.00      $  1.00
                                             =======        =======      =======      =======      =======      =======
Total return ............................       2.29%*         3.20%        1.36%        0.90%        1.35%        2.52%

Ratios/supplemental data
  Net assets, end of period (in millions)    $   326        $   286      $   366      $   287      $   361      $   353
  Ratio of expenses to average net assets       0.58%**        0.58%        0.37%        0.21%        0.36%        0.58%
  Ratio of net investment income to
    average net assets ..................       4.53%**        3.09%        1.39%        0.90%        1.34%        2.51%

The expense and net investment income ratios without the effect of the Adviser's and Administrator's contractual
caps on fees were (note 3):

  Ratio of expenses to average net assets           ++             ++       0.57%        0.57%        0.58%            ++
  Ratio of net investment income to
    average net assets ..................           ++             ++       1.19%        0.54%        1.12%            ++

The expense ratios after giving effect to the expense offset for uninvested cash balances were:

  Ratio of expenses to average net assets       0.58%**        0.58%        0.37%        0.21%        0.36%        0.57%




                                                                           SERVICE SHARES
                                           ----------------------------------------------------------------------------
                                           Six Months
                                              Ended                             Year Ended March 31,
                                             9/30/06        -----------------------------------------------------------
                                           (unaudited)        2006         2005         2004         2003         2002
                                           -----------      -------      -------      -------      -------      -------
                                                                                              
Net asset value, beginning of period ....    $  1.00        $  1.00      $  1.00      $  1.00      $  1.00      $  1.00
                                             -------        -------      -------      -------      -------      -------
Income from investment operations:
  Net investment income+ ................       0.02           0.03         0.01         0.01         0.01         0.02
                                             -------        -------      -------      -------      -------      -------
Less distributions:
  Dividends from net investment income ..      (0.02)         (0.03)       (0.01)       (0.01)       (0.01)       (0.02)
                                             -------        -------      -------      -------      -------      -------
Net asset value, end of period ..........    $  1.00        $  1.00      $  1.00      $  1.00      $  1.00      $  1.00
                                             =======        =======      =======      =======      =======      =======
Total return ............................       2.16%*         2.94%        1.11%        0.65%        1.09%        2.27%

Ratios/supplemental data
  Net assets, end of period (in millions)    $   173        $   169      $   166      $   119      $   123      $   146
  Ratio of expenses to average net assets       0.83%**        0.83%        0.61%        0.46%        0.61%        0.83%
  Ratio of net investment income to
    average net assets ..................       4.28%**        2.91%        1.12%        0.65%        1.10%        2.36%

The expense and net investment income ratios without the effect of the Adviser's and Administrator's contractual
caps on fees were (note 3):

  Ratio of expenses to average net assets           ++             ++       0.81%        0.82%        0.83%            ++
  Ratio of net investment income to
    average net assets ..................           ++             ++       0.91%        0.29%        0.88%            ++

The expense ratios after giving effect to the expense offset for uninvested cash balances were:

  Ratio of expenses to average net assets       0.83%**        0.83%        0.61%        0.46%        0.61%        0.82%


- ----------
+     Per share amounts have been  calculated  using the monthly  average shares
      method.
++    No reduction in the  Adviser's and the  Administrator's  fees was required
      during the period.
*     Not annualized.
**    Annualized.


                 See accompanying notes to financial statements.


- --------------------------------------------------------------------------------

                                 PACIFIC CAPITAL
                           TAX-FREE CASH ASSETS TRUST
                              FINANCIAL HIGHLIGHTS

- --------------------------------------------------------------------------------

FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD



                                                                            ORIGINAL SHARES
                                           ---------------------------------------------------------------------------
                                           Six Months
                                              Ended                             Year Ended March 31,
                                             9/30/06        -----------------------------------------------------------
                                           (unaudited)        2006         2005         2004         2003         2002
                                           -----------      -------      -------      -------      -------      -------
                                                                                              
Net asset value, beginning of period ....    $  1.00        $  1.00      $  1.00      $  1.00      $  1.00      $  1.00
                                             -------        -------      -------      -------      -------      -------
Income from investment operations:
  Net investment income+ ................       0.02           0.02         0.01         0.01         0.01         0.02
                                             -------        -------      -------      -------      -------      -------
Less distributions:
  Dividends from net investment income ..      (0.02)         (0.02)       (0.01)       (0.01)       (0.01)       (0.02)
                                             -------        -------      -------      -------      -------      -------
Net asset value, end of period ..........    $  1.00        $  1.00      $  1.00      $  1.00      $  1.00      $  1.00
                                             =======        =======      =======      =======      =======      =======
Total return ............................       1.52%*         2.21%        1.16%        0.84%        1.15%        2.00%

Ratios/supplemental data
  Net assets, end of period (in millions)                   $   127      $   133      $   134      $    99      $   130
  Ratio of expenses to average net assets       0.51%**        0.50%        0.29%        0.17%        0.28%        0.51%
  Ratio of net investment income to
    average net assets ..................       3.00%**        2.20%        1.17%        0.84%        1.13%        1.94%

The expense and net investment income ratios without the effect of the Adviser's and Administrator's contractual
caps on fees were (note 3):

  Ratio of expenses to average net assets           ++             ++       0.49%        0.52%        0.50%            ++
  Ratio of net investment income to
    average net assets ..................           ++             ++       0.96%        0.50%        0.90%            ++

The expense ratios after giving effect to the expense offset for uninvested cash balances were:

  Ratio of expenses to average net assets       0.51%**        0.50%        0.28%        0.17%        0.27%        0.51%




                                                                           SERVICE SHARES
                                           ----------------------------------------------------------------------------
                                           Six Months
                                              Ended                            Year Ended March 31,
                                             9/30/06        -----------------------------------------------------------
                                           (unaudited)        2006         2005         2004         2003         2002
                                           -----------      -------      -------      -------      -------      -------
                                                                                              
Net asset value, beginning of period ....    $  1.00        $  1.00      $  1.00      $  1.00      $  1.00      $  1.00
                                             -------        -------      -------      -------      -------      -------
Income from investment operations:
  Net investment income+ ................       0.01           0.02         0.01         0.01         0.01         0.02
                                             -------        -------      -------      -------      -------      -------
Less distributions:
  Dividends from net investment income ..      (0.01)         (0.02)       (0.01)       (0.01)       (0.01)       (0.02)
                                             -------        -------      -------      -------      -------      -------
Net asset value, end of period ..........    $  1.00        $  1.00      $  1.00      $  1.00      $  1.00      $  1.00
                                             =======        =======      =======      =======      =======      =======
Total return ............................       1.39%*         1.96%        0.90%        0.59%        0.90%        1.75%

Ratios/supplemental data
  Net assets, end of period (in millions)    $   100        $    66      $93 $72      $    50      $    56      $    52
  Ratio of expenses to average net assets       0.76%**        0.75%        0.53%        0.42%        0.53%        0.77%
  Ratio of net investment income to
    average net assets ..................       2.75%**        1.94%        0.92%        0.59%        0.89%        1.77%

The expense and net investment income ratios without the effect of the Adviser's and Administrator's contractual
caps on fees were (note 3):

  Ratio of expenses to average net assets           ++             ++       0.75%        0.77%        0.76%            ++
  Ratio of net investment income to
    average net assets ..................           ++             ++       0.71%        0.25%        0.66%            ++

The expense ratios after giving effect to the expense offset for uninvested cash balances were:

  Ratio of expenses to average net assets       0.76%**        0.75%        0.53%        0.42%        0.52%        0.77%


- ----------
+     Per share amounts have been  calculated  using the monthly  average shares
      method.
++    No reduction in the  Adviser's and the  Administrator's  fees was required
      during the period.
*     Not annualized.
**    Annualized.


See accompanying notes to financial statements.


- --------------------------------------------------------------------------------

                                 PACIFIC CAPITAL
                  U.S. GOVERNMENT SECURITIES CASH ASSETS TRUST
                              FINANCIAL HIGHLIGHTS

- --------------------------------------------------------------------------------

FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD



                                                                            ORIGINAL SHARES
                                           ----------------------------------------------------------------------------
                                           Six Months
                                             Ended                              Year Ended March 31,
                                             9/30/06        -----------------------------------------------------------
                                           (unaudited)        2006         2005         2004         2003         2002
                                           -----------      -------      -------      -------      -------      -------
                                                                                              
Net asset value, beginning of period ....    $  1.00        $  1.00      $  1.00      $  1.00      $  1.00      $  1.00
                                             -------        -------      -------      -------      -------      -------
Income from investment operations:
  Net investment income+ ................       0.02           0.03         0.01         0.01         0.01         0.03
                                             -------        -------      -------      -------      -------      -------
Less distributions:
  Dividends from net investment income ..      (0.02)         (0.03)       (0.01)       (0.01)       (0.01)       (0.03)
                                             -------        -------      -------      -------      -------      -------
Net asset value, end of period ..........    $  1.00        $  1.00      $  1.00      $  1.00      $  1.00      $  1.00
                                             =======        =======      =======      =======      =======      =======
Total return ............................       2.33%*         3.25%        1.41%        0.96%        1.34%        2.73%

Ratios/supplemental data
  Net assets, end of period (in millions)    $   446        $   429      $   354      $   263      $   270      $   306
  Ratio of expenses to average net assets       0.45%**        0.45%        0.27%        0.11%        0.25%        0.45%
  Ratio of net investment income to
    average net assets ..................       4.61%**        3.25%        1.42%        0.96%        1.34%        2.47%

The expense and net investment income ratios without the effect of the Adviser's and Administrator's contractual
caps on fees were (note 3):

  Ratio of expenses to average net assets           ++             ++       0.45%        0.46%        0.46%            ++
  Ratio of net investment income to
    average net assets ..................           ++             ++       1.24%        0.62%        1.12%            ++

The expense ratios after giving effect to the expense offset for uninvested cash balances were:

  Ratio of expenses to average net assets       0.45%**        0.45%        0.27%        0.11%        0.24%        0.45%




                                                                            SERVICE SHARES
                                           ----------------------------------------------------------------------------
                                           Six Months
                                             Ended                              Year Ended March 31,
                                             9/30/06        -----------------------------------------------------------
                                           (unaudited)        2006         2005         2004         2003         2002
                                           -----------      -------      -------      -------      -------      -------
                                                                                              
Net asset value, beginning of period ....    $  1.00        $  1.00      $  1.00      $  1.00      $  1.00      $  1.00
                                             -------        -------      -------      -------      -------      -------
Income from investment operations:
  Net investment income+ ................       0.02           0.03         0.01         0.01         0.01         0.02
                                             -------        -------      -------      -------      -------      -------
Less distributions:
  Dividends from net investment income ..      (0.02)         (0.03)       (0.01)       (0.01)       (0.01)       (0.02)
                                             -------        -------      -------      -------      -------      -------
Net asset value, end of period ..........    $  1.00        $  1.00      $  1.00      $  1.00      $  1.00      $  1.00
                                             =======        =======      =======      =======      =======      =======
Total return ............................       2.20%*         3.00%        1.16%        0.71%        1.09%        2.48%

Ratios/supplemental data
  Net assets, end of period (in millions)    $   924        $   887      $   578      $   575      $   448      $   457
  Ratio of expenses to average net assets       0.70%**        0.70%        0.52%        0.36%        0.49%        0.70%
  Ratio of net investment income to
    average net assets ..................       4.36%**        3.02%        1.16%        0.71%        1.08%        2.39%

The expense and net investment income ratios without the effect of the Adviser's and Administrator's contractual
caps on fees were (note 3):

  Ratio of expenses to average net assets           ++             ++       0.70%        0.71%        0.71%            ++
  Ratio of net investment income to
    average net assets ..................           ++             ++       0.98%        0.36%        0.86%            ++

The expense ratios after giving effect to the expense offset for uninvested cash balances were:

  Ratio of expenses to average net assets       0.70%**        0.70%        0.52%        0.36%        0.49%        0.70%


- ----------
+     Per share amounts have been  calculated  using the monthly  average shares
      method.
++    No reduction in the  Adviser's and the  Administrator's  fees was required
      during the period.
*     Not annualized.
**    Annualized.


                 See accompanying notes to financial statements.


- --------------------------------------------------------------------------------

ANALYSIS OF EXPENSES (UNAUDITED)

      As a  shareholder  of the Trust,  you may incur ongoing  costs,  including
management fees;  distribution (12b-1) fees; and other Fund expenses.  The table
below is intended to help you  understand  your  ongoing  costs (in  dollars) of
investing in each of the Funds and to compare these costs with the ongoing costs
of investing in other mutual funds.

      The table below is based on an investment  of $1,000  invested on April 1,
2006 and held for the six months ended September 30, 2006.

ACTUAL EXPENSES

      This table  provides  information  about actual  account values and actual
expenses.  You may use the information provided in this table, together with the
amount you invested,  to estimate the expenses that you paid over the period. To
estimate the expenses you paid on your account, divide your ending account value
by $1,000 (for example, an $8,600 ending account value divided by $1,000 = 8.6),
then multiply the result by the number under the heading entitled "Expenses Paid
During the Period".

SIX MONTHS ENDED SEPTEMBER 30, 2006

                                     BEGINNING         ENDING        EXPENSES
                       ACTUAL         ACCOUNT          ACCOUNT      PAID DURING
                   TOTAL RETURN(1)     VALUE            VALUE      THE PERIOD(2)
- --------------------------------------------------------------------------------
CASH FUND
Original Shares         2.29%        $1,000.00        $1,022.90        $    2.94
Service Shares          2.16%        $1,000.00        $1,021.60        $    4.21
- --------------------------------------------------------------------------------
TAX-FREE FUND
Original Shares         1.52%        $1,000.00        $1,015.20        $    2.58
Service Shares          1.39%        $1,000.00        $1,013.90        $    3.84
- --------------------------------------------------------------------------------
GOVERNMENT FUND
Original Shares         2.33%        $1,000.00        $1,023.30        $    2.28
Service Chares          2.20%        $1,000.00        $1,022.00        $    3.55
- --------------------------------------------------------------------------------
(1)   ASSUMES REINVESTMENT OF ALL DIVIDENDS.  TOTAL RETURN IS NOT ANNUALIZED, AS
      IT MAY NOT BE REPRESENTATIVE OF THE TOTAL RETURN FOR THE YEAR.
(2)   EXPENSES  ARE EQUAL TO THE  ANNUALIZED  EXPENSE  RATIO OF 0.58% AND 0.83%,
      RESPECTIVELY,  FOR CASH FUND ORIGINAL SHARES AND SERVICE SHARES, 0.51% AND
      0.76%, RESPECTIVELY, FOR TAX-FREE FUND ORIGINAL SHARES AND SERVICE SHARES,
      AND 0.45% AND 0.70%, RESPECTIVELY, FOR GOVERNMENT FUND ORIGINAL SHARES AND
      SERVICE  SHARES  MULTIPLIED BY THE AVERAGE  ACCOUNT VALUE OVER THE PERIOD,
      MULTIPLIED BY 183/365 (TO REFLECT THE ONE-HALF YEAR PERIOD).

- --------------------------------------------------------------------------------



- --------------------------------------------------------------------------------

ANALYSIS OF EXPENSES (UNAUDITED) (CONTINUED)

HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES

      The table below provides information about hypothetical account values and
hypothetical  expenses  based on the actual expense ratio and an assumed rate of
return of 5.00% per year before expenses, which is not the actual return of each
of the respective Funds. The hypothetical account values and expenses may not be
used to estimate the actual ending account  balance or expenses you paid for the
period.  You may use the  information  provided  in this  table to  compare  the
ongoing  costs of  investing  in the  portfolios  of the Trust and other  mutual
funds.  To do so,  compare  this  5.00%  hypothetical  example  relating  to the
respective  Fund  with  the  5.00%  hypothetical  examples  that  appear  in the
shareholder reports of other mutual funds.

SIX MONTHS ENDED SEPTEMBER 30, 2006

                    HYPOTHETICAL
                     ANNUALIZED      BEGINNING         ENDING         EXPENSES
                        TOTAL         ACCOUNT          ACCOUNT       PAID DURING
                       RETURN          VALUE            VALUE         THE PERIOD
- --------------------------------------------------------------------------------
CASH FUND
Original Shares         5.00%        $1,000.00        $1,022.16        $    2.94
Service Shares          5.00%        $1,000.00        $1,020.91        $    4.20
- --------------------------------------------------------------------------------
TAX-FREE FUND
Original Shares         5.00%        $1,000.00        $1,022.51        $    2.59
Service Shares          5.00%        $1,000.00        $1,021.26        $    3.85
- --------------------------------------------------------------------------------
GOVERNMENT FUND
Original Shares         5.00%        $1,000.00        $1,022.81        $    2.28
Service Chares          5.00%        $1,000.00        $1,021.56        $    3.55
- --------------------------------------------------------------------------------
(1)   EXPENSES  ARE EQUAL TO THE  ANNUALIZED  EXPENSE  RATIO OF 0.58% AND 0.83%,
      RESPECTIVELY,  FOR CASH FUND ORIGINAL SHARES AND SERVICE SHARES, 0.51% AND
      0.76%, RESPECTIVELY, FOR TAX-FREE FUND ORIGINAL SHARES AND SERVICE SHARES,
      AND 0.45% AND 0.70%, RESPECTIVELY, FOR GOVERNMENT FUND ORIGINAL SHARES AND
      SERVICE  SHARES  MULTIPLIED BY THE AVERAGE  ACCOUNT VALUE OVER THE PERIOD,
      MULTIPLIED BY 183/365 (TO REFLECT THE ONE-HALF YEAR PERIOD).

- --------------------------------------------------------------------------------



ADDITIONAL INFORMATION (UNAUDITED)

RENEWAL OF INVESTMENT ADVISORY AGREEMENT

      Renewal  until June 30, 2007 of the  Investment  Advisory  Agreement  (the
"Advisory  Agreement")  for each fund  between  the Trust  and the  Adviser  was
approved by the Board of Trustees and the independent Trustees in June, 2006. At
a  meeting  called  and  held  for  that  purpose  at  which a  majority  of the
independent  Trustees  were  present in person,  the  following  materials  were
considered:

      o     Copies of the agreements to be renewed;
      o     A term sheet describing the material terms of the agreements;
      o     The Annual Report of the Trust for the year ended March 31, 2006;
      o     A report,  prepared by the Adviser and Administrator and provided to
            the  Trustees in advance of the meeting  for the  Trustees'  review,
            containing  data about the performance of each of the portfolios and
            data  about  their  respective  fees,  expenses  and  purchases  and
            redemptions of capital stock together with  comparisons of such data
            with similar data about other  comparable  funds, as well as data as
            to the profitability of the Adviser and the Administrator; and
      o     Quarterly  materials  reviewed  at  prior  meetings  on  each of the
            portfolio's performance, operations, portfolio and compliance.

      The Trustees considered each Advisory Agreement  separately.  The Trustees
reviewed materials relevant to, and considered, the following factors as to each
agreement and reached the conclusions described.

      THE NATURE, EXTENT, AND QUALITY OF THE SERVICES PROVIDED BY THE ADVISER.

      The investment  objective of each of the Trust's  portfolios is to seek to
provide safety of principal  while  achieving as a high a level of liquidity and
of current income (and with respect to the Tax-Free Fund,  current income exempt
from Federal and Hawaii income taxes). To achieve these objectives,  the Adviser
has provided management of each fund's portfolio, as well as provided facilities
for credit analysis of each of the funds' portfolio securities.  With respect to
the Government Securities Fund, the Adviser has managed the investment portfolio
in order to achieve a Aaa/AAA  rating from both  Moody's  Investors  Service and
Standard and Poor's, respectively.

      The Board  considered that the Adviser had provided all services the Board
deemed necessary or appropriate,  including the specific services that the Board
has determined are required for the Trust,  given that its purpose is to provide
shareholders  with  safety of  principal  while  achieving  as a high a level of
liquidity and of current income.

      The Board  concluded  that the  services  provided  were  appropriate  and
satisfactory  and  that  the  Trust  would  be well  served  if they  continued.
Evaluation  of  this  factor  weighed  in  favor  of  renewal  of  the  Advisory
Agreements.

      THE INVESTMENT  PERFORMANCE OF THE TRUST (AND EACH OF ITS  PORTFOLIOS) AND
ADVISER.

      The Board reviewed each aspect of each fund's performance and compared its
performance  with that of their  respective  benchmarks.  It was noted  that the
materials provided by the



Administrator  indicated that compared to each fund's respective benchmark,  the
Trust's  portfolios had investment  performance that was either comparable to or
favorable for one-,  five- and ten-year  periods as compared with the benchmark.
The Board considered these results to be consistent with the purposes of each of
the Trust's portfolios.

      The Board  concluded that the performance of each fund, in light of market
conditions,  was  satisfactory.  Evaluation  of  this  factor  indicated  to the
Trustees that renewal of the Advisory Agreement would be appropriate.

      THE COSTS OF THE SERVICES TO BE PROVIDED AND PROFITS TO BE REALIZED BY THE
ADVISER AND ITS AFFILIATES FROM THE RELATIONSHIP WITH THE TRUST (AND EACH OF ITS
PORTFOLIOS).

      The information provided in connection with renewal contained expense data
for each fund and its  major  local  competitor  as well as data for each of the
funds with respect to their  respective  peer groups,  including  data for money
market  funds  of a  comparable  asset  size.  The  materials  also  showed  the
profitability to the Adviser of its services to the Trust.

      The Board  compared  the expense and fee data with  respect to each of the
portfolios  to similar data about other funds that it found to be relevant.  The
Board  concluded  that the expenses of each of the  portfolios and the fees paid
were  similar to and were  reasonable  as  compared  to those  being paid by its
respective local competitor and other money market funds nationwide.

      The Board considered that the foregoing  indicated the  appropriateness of
the  costs of the  services  to the  Trust,  which  was being  well  managed  as
indicated by the factors considered previously.

      The Board further  concluded that the profitability to the Adviser did not
argue against approval of the fees to be paid under each Advisory Agreement.

      THE EXTENT TO WHICH ECONOMIES OF SCALE WOULD BE REALIZED AS THE TRUST, AND
ITS PORTFOLIOS, GROWS.

      Data  provided to the  Trustees  showed that the asset size of each of the
portfolios  had  been  generally  increasing  in  recent  years.  However,  they
concluded that the uncertain  interest rate environment  might make it difficult
to achieve  substantial  growth in assets in the near future.  The Trustees also
noted that the materials  indicated  that each  portfolio's  fees were generally
comparable to those of its peers,  including those with breakpoints.  Evaluation
of this factor  indicated  to the Board that the Advisory  Agreements  should be
renewed without addition of breakpoints at this time.

      BENEFITS  DERIVED OR TO BE DERIVED BY THE ADVISER AND ITS AFFILIATES  FROM
THE RELATIONSHIP WITH THE TRUST (AND EACH OF ITS PORTFOLIOS).

      The Board observed that, as is generally true of most fund complexes,  the
Adviser and its affiliates,  by providing services to a number of funds or other
investment  clients including the Trust's three portfolios,  were able to spread
costs as they would  otherwise  be unable to do. The Board noted that while that
produces  efficiencies  and  increased  profitability  for the  Adviser  and its
affiliates,  it also makes their services  available to the three  portfolios of
the Trust at favorable levels of quality and cost which are more advantageous to
the Trust's portfolios than would otherwise have been possible.



- --------------------------------------------------------------------------------

INFORMATION AVAILABLE (UNAUDITED)

      Much of the  information  that the funds in the  Aquila  Group of  Fundssm
produce is automatically sent to you and all other  shareholders.  Specifically,
you are  routinely  sent the entire list of portfolio  securities  of your Trust
twice a year in the semi-annual and annual reports you receive. Additionally, we
prepare,  and have  available  portfolio  listings  at the end of each  quarter.
Whenever you may be  interested  in seeing a listing of your Trust's  portfolios
other   than  in  your   shareholder   reports,   please   check   our   website
http://www.aquilafunds.com or call us at 1-800-437-1020.

      The Trust additionally files a complete list of its portfolio holdings for
each of the three  portfolios  with the SEC for the first and third  quarters of
each fiscal year on Form N-Q.  Forms N-Q are available free of charge on the SEC
website at http://www.sec.gov. You may also review or, for a fee, copy the forms
at the SEC's Public Reference Room in Washington, DC or by calling 800-SEC-0330.

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

PROXY VOTING RECORD (UNAUDITED)

      The  three  portfolios  of the Trust do not  invest in equity  securities.
Accordingly,  there were no matters relating to a portfolio security  considered
at any  shareholder  meeting  held during the 12 months ended June 30, 2006 with
respect to which any of the three portfolios of the Trust were entitled to vote.
Applicable  regulations require us to inform you that the foregoing proxy voting
information is available on the SEC website at http://www.sec.gov.

- --------------------------------------------------------------------------------



                               INVESTMENT ADVISER

                    Asset Management Group of Bank of Hawaii
                     P.O. Box 3170 o Honolulu, Hawaii 96802

                                  ADMINISTRATOR

                        Aquila Investment Management LLC
            380 Madison Avenue, Suite 2300 o New York, New York 10017

                                BOARD OF TRUSTEES

                            Theodore T. Mason, Chair
                          Diana P. Herrmann, Vice Chair
                               Thomas W. Courtney
                                 Stanley W. Hong
                                Russell K. Okata
                                Douglas Philpotts
                                Oswald K. Stender

                          FOUNDER AND CHAIRMAN EMERITUS

                                Lacy B. Herrmann

                                    OFFICERS

                          Diana P. Herrmann, President
                Charles E. Childs, III, Executive Vice President
                          Sherri Foster, Vice President
                  Robert W. Anderson, Chief Compliance Officer
            Joseph P. DiMaggio, Chief Financial Officer and Treasurer
                          Edward M.W. Hines, Secretary

                                   DISTRIBUTOR

                            Aquila Distributors, Inc.
            380 Madison Avenue, Suite 2300 o New York, New York 10017

                    TRANSFER AND SHAREHOLDER SERVICING AGENT

                                    PFPC Inc.
                     101 Sabin Street o Pawtucket, RI 02860

                                    CUSTODIAN

                            JP Morgan Chase Bank, N.A.
                   1111 Polaris Parkway o Columbus, Ohio 43240

                  INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

                            Tait, Weller & Baker LLP
             1818 Market Street, Suite 2400 o Philadelphia, PA 19103

               Further information is contained in the Prospectus
                  which must precede or accompany this report.


ITEM 2.  CODE OF ETHICS.

	 Not applicable.

ITEM 3.  AUDIT COMMITTEE FINANCIAL EXPERT.

	 Not applicable,


ITEM 4.  PRINCIPAL ACCOUNTANT FEES AND SERVICES

	 Not applicable.

ITEM 5.  AUDIT COMMITTEE OF LISTED REGISTRANTS.

	 Not applicable.

ITEM 6.  [RESERVED]

ITEM 7.  DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR
         CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

	 Not applicable.

ITEM 8. [RESERVED]

ITEM 9.  CONTROLS AND PROCEDURES.

(a)  Based on their evaluation of the registrant's disclosure
controls and procedures (as defined in Rule 30a-2(c) under the
Investment Company Act of 1940) as of a date within 90 days of
the fling of this report, the registrant's chief financial and
executive officers have concluded that the disclosure controls
and procedures of the registrant are appropriately designed to
ensure tat information required to be disclosed in the
registrant's reports that are filed under the Securities Exchange
Act of 1934 are accumulated and communicated t registrant's
management, including its principal executive officer(s) and
principal financial officer(s), to allow timely decisions regarding
required disclosure and is recorded, processed, summarized and
reported, within the time periods specified in the rules and forms
adopted by the Securities and Exchange Commission.

(b)  There have been no significant changes in registrant's internal
controls or in other factors that could significantly affect
registrant's internal controls subsequent to the date of the most
recent evaluation, including no significant deficiencies or material
weaknesses that required corrective action.

ITEM 10.  EXHIBITS.

(a)(2) Certifications of principal executive officer and principal
financial officer as required by Rule 30a-2(a) under the Investment
Company Act of 1940.

(b) Certifications of principal executive officer and principal
financial officer as required by Rule 30a-2(b) under the Investment
Company Act of 1940.





SIGNATURES

	Pursuant to the requirements of the Securities Exchange Act
of 1934 and the Investment Company Act of 1940, the registrant has
duly caused this report to be signed on its behalf by the undersigned
thereunto duly authorized.

CASH ASSETS TRUST


By:  /s/  Diana P. Herrmann
- - ---------------------------------
Vice Chair, President and Trustee
December 8, 2006


By:  /s/  Joseph P. DiMaggio
- - -----------------------------------
Chief Financial Officer and Treasurer
December 8, 2006


Pursuant to the requirements of the Securities Exchange Act of 1934
and the Investment Company Act of 1940, this report has been signed
below by the following persons on behalf of the registrant and in
the capacities and on the dates indicated.


By:  /s/  Diana P. Herrmann
- - ---------------------------------
Diana P. Herrmann
Vice Chair, President and Trustee
December 8, 2006

By:  /s/  Joseph P. DiMaggio
- - -----------------------------------
Joseph P. DiMaggio
Chief Financial Officer and Treasurer
December 8, 2006








CASH ASSETS TRUST

EXHIBIT INDEX

(a)(1) Aquila Group of Funds Code of Ethics for Principal Executive
and Senior Financial Officers under Section 406 of the Sarbanes-Oxley
Act of 2002.

(a) (2) Certifications of principal executive officer
and principal financial officer as required by Rule 30a-2(a)
under the Investment Company Act of 1940.

(b) Certification of chief executive officer and chief financial
officer as required by Rule 30a-2(b) of the Investment Company Act
of 1940.