Cash Trust Series Ii N-CSR Certified annual shareholder report (management investment company)

United States

Securities and Exchange Commission

Washington, D.C.  20549

Form N-CSR

Certified Shareholder Report of Registered Management Investment Companies

811-6269

(Investment Company Act File Number)

Cash Trust Series II

_______________________________________________________________

(Exact Name of Registrant as Specified in Charter)

Federated Investors Funds

4000 Ericsson Drive

Warrendale, Pennsylvania 15086-7561

(Address of Principal Executive Offices)

(412) 288-1900

(Registrant's Telephone Number)

John W. McGonigle, Esquire

Federated Investors Tower

1001 Liberty Avenue

Pittsburgh, Pennsylvania 15222-3779

(Name and Address of Agent for Service)

(Notices should be sent to the Agent for Service)

Date of Fiscal Year End: 05/31/2011

Date of Reporting Period: 05/31/2011

Item 1.                      Reports to Stockholders

	Annual Shareholder Report
	May 31, 2011

Share Class	Ticker
CII	CTWXX

Federated Treasury Cash Series II

A Portfolio of Cash Trust Series II

Financial Highlights
Shareholder Expense Example
Portfolio of Investments Summary Tables
Portfolio of Investments
Statement of Assets and Liabilities
Statement of Operations
Statement of Changes in Net Assets
Notes to Financial Statements
Report of Independent Registered Public Accounting Firm
Board of Trustees and Trust Officers
Evaluation and Approval of Advisory Contract
Voting Proxies on Fund Portfolio Securities
Quarterly Portfolio Schedule

Financial Highlights – Cash II Shares

(For a Share Outstanding Throughout Each Period)

Year Ended May 31	2011	2010	2009	2008	2007
Net Asset Value, Beginning of Period	$1.00	$1.00	$1.00	$1.00	$1.00
Income From Investment Operations:
Net investment income	—	— 1	0.004	0.030	0.044
Net realized gain on investments	0.0002	0.0002	0.0002	—	—
TOTAL FROM INVESTMENT OPERATIONS	0.0002	0.0002	0.004	0.030	0.044
Less Distributions:
Distributions from net investment income	—	—	(0.004)	(0.030)	(0.044)
Distributions from net realized gain on investments	(0.000)2	—	(0.000)2	—	—
TOTAL DISTRIBUTIONS	(0.000)2	—	(0.004)	(0.030)	(0.044)
Net Asset Value, End of Period	$1.00	$1.00	$1.00	$1.00	$1.00
Total Return3	0.00%4	0.00%4	0.40%	3.01%	4.49%
Ratios to Average Net Assets:
Net expenses	0.20%	0.24%	0.64%	0.83%	0.83%
Net investment income	0.00%	0.00%	0.44%	3.01%	4.40%
Expense waiver/reimbursement5	0.93%	0.74%	0.26%	0.03%	0.01%
Supplemental Data:
Net assets, end of period (000 omitted)	$68,478	$92,998	$130,903	$302,004	$340,232

1	Calculated using the average shares method.
2	Represents less than $0.001.
3	Based on net asset value.
4	Represents less than 0.01%.
5	This expense decrease is reflected in both the net expense and the net investment income ratios shown above.

See Notes which are an integral part of the Financial Statements

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Shareholder Expense Example (unaudited)

As a shareholder of the Fund, you incur ongoing costs, including management fees and to the extent applicable, distribution (12b-1) fees and/or shareholder services fees and other Fund expenses. This Example is intended to help you to understand your ongoing costs (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. It is based on an investment of $1,000 invested at the beginning of the period and held for the entire period from December 1, 2010 to May 31, 2011.

ACTUAL EXPENSES

The first section of the table below provides information about actual account values and actual expenses. You may use the information in this section, together with the amount you invested, to estimate the expenses that you incurred over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first section under the heading entitled “Expenses Paid During Period” to estimate the expenses attributable to your investment during this period.

HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES

The second section of the table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. Thus, you should not use the hypothetical account values and expenses to estimate the actual ending account balance or your expenses for the period. Rather, these figures are required to be provided to enable you to compare the ongoing costs of investing in the Fund with other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds.

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Please note that the expenses shown in the table are meant to highlight your ongoing costs only. Therefore, the second section of the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds.

	Beginning Account Value 12/1/2010	Ending Account Value 5/31/2011	Expenses Paid During Period1,2
Actual	$1,000	$1,000.00	$0.80
Hypothetical (assuming a 5% return before expenses)	$1,000	$1,024.13	$0.81

1

Expenses are equal to the Fund's annualized net expense ratio of 0.16%, multiplied by the average account value over the period, multiplied by 182/365 (to reflect the one-half-year period).

2

Actual and Hypothetical expenses paid during the period utilizing the Fund's current annualized net expense ratio of 0.83% (as reflected in the Notes to Financial Statements, Note 5 under Expense Limitation), multiplied by the average account value over the period, multiplied by 182/365 (to reflect current expenses as if they had been in effect throughout the most recent one-half-year period) would be $4.14 and $4.18, respectively.

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Portfolio of Investments Summary Tables (unaudited)

At May 31, 2011, the Fund's portfolio composition¹ was as follows:

Portfolio Composition	Percentage of Total Net Assets
Repurchase Agreements	63.3%
U.S. Treasury Securities	36.6%
Other Assets and Liabilities — Net2	0.1%
TOTAL	100.0%

At May 31, 2011, the Fund's effective maturity³ schedule was as follows:

Securities With an Effective Maturity of:	Percentage of Total Net Assets
1-7 Days	50.2%
8-30 Days	20.5%
31-90 Days	9.5%
91-180 Days	10.2%
181 Days or more	9.5%
Other Assets and Liabilities — Net2	0.1%
TOTAL	100.0%

1	See the Fund's Prospectus and Statement of Additional Information for a description of the types of securities in which the Fund invests.
2	Assets, other than investments in securities, less liabilities. See Statement of Assets and Liabilities.
3	Effective maturity is determined in accordance with the requirements of Rule 2a-7 under the Investment Company Act of 1940, which regulates money market mutual funds.

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Portfolio of Investments

May 31, 2011

Principal Amount			Value
		U.S. Treasury – 36.6%
$6,000,000	1	United States Treasury Bills, 0.025%, 6/16/2011	5,999,937
3,000,000	1	United States Treasury Bills, 0.055%, 7/28/2011	2,999,739
1,000,000	1	United States Treasury Bills, 0.170%, 9/1/2011	999,566
1,800,000		United States Treasury Notes, 0.750% - 4.500%, 11/30/2011	1,828,552
1,000,000		United States Treasury Notes, 0.875%, 1/31/2012	1,003,829
1,000,000		United States Treasury Notes, 1.000%, 9/30/2011	1,002,388
2,250,000		United States Treasury Notes, 1.000%, 12/31/2011	2,260,214
2,000,000		United States Treasury Notes, 1.125% - 5.125%, 6/30/2011	2,004,596
1,400,000		United States Treasury Notes, 1.375% - 4.875%, 2/15/2012	1,427,801
1,200,000		United States Treasury Notes, 1.750%, 11/15/2011	1,208,149
3,750,000		United States Treasury Notes, 4.625%, 8/31/2011	3,790,762
500,000		United States Treasury Notes, 4.875%, 7/31/2011	503,818
		TOTAL U.S. TREASURY	25,029,351
		Repurchase Agreements – 63.3%
10,000,000		Interest in $650,000,000 joint repurchase agreement 0.10%, dated 5/31/2011 under which Bank of Montreal will repurchase securities provided as collateral for $650,001,806 on 6/1/2011. The securities provided as collateral at the end of the period were U.S. Treasury securities with various maturities to 8/15/2040 and the market value of those underlying securities was $663,001,848.	10,000,000
3,000,000	2	Interest in $957,000,000 joint repurchase agreement 0.06%, dated 5/24/2011 under which Barclays Capital, Inc. will repurchase securities provided as collateral for $957,092,510 on 7/22/2011. The securities provided as collateral at the end of the period were U.S. Treasury securities with various maturities to 1/15/2020 and the market value of those underlying securities was $976,151,501.	3,000,000
4,000,000	2	Interest in $980,000,000 joint repurchase agreement 0.07%, dated 4/28/2011 under which BNP Paribas Securities Corp., will repurchase securities provided as collateral for $980,114,333 on 6/28/2011. The securities provided as collateral at the end of the period were U.S. Treasury securities with various maturities to 5/15/2019 and the market value of those underlying securities was $999,664,204.	4,000,000
4,365,000		Interest in $3,000,000,000 joint repurchase agreement 0.10%, dated 5/31/2011 under which Credit Agricole Securities (USA), Inc. will repurchase securities provided as collateral for $3,000,008,333 on 6/1/2011. The securities provided as collateral at the end of the period were U.S. Treasury securities with various maturities to 4/15/2032 and the market value of those underlying securities was $3,060,008,501.	4,365,000

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Principal Amount			Value
$2,000,000	2	Interest in $500,000,000 joint repurchase agreement 0.08%, dated 4/27/2011 under which Deutsche Bank Securities, Inc. will repurchase securities provided as collateral for $500,067,778 on 6/27/2011. The securities provided as collateral at the end of the period were U.S. Treasury securities with various maturities to 4/15/2028 and the market value of those underlying securities was $510,039,740.	2,000,000
10,000,000		Interest in $1,825,000,000 joint repurchase agreement 0.10%, dated 5/31/2011 under which RBS Securities, Inc. will repurchase securities provided as collateral for $1,825,005,069 on 6/1/2011. The securities provided as collateral at the end of the period were U.S. Treasury securities with various maturities to 1/15/2021 and the market value of those underlying securities was $1,861,502,737.	10,000,000
10,000,000		Interest in $1,250,000,000 joint repurchase agreement 0.10%, dated 5/31/2011 under which TD Securities (USA), LLC will repurchase securities provided as collateral for $1,250,003,472 on 6/1/2011. The securities provided as collateral at the end of the period were U.S. Treasury securities with various maturities to 5/15/2041 and the market value of those underlying securities was $1,275,003,588.	10,000,000
		TOTAL REPURCHASE AGREEMENTS	43,365,000
		TOTAL INVESTMENTS — 99.9% (AT AMORTIZED COST)3	68,394,351
		OTHER ASSETS AND LIABILITIES - NET — 0.1%4	83,657
		TOTAL NET ASSETS — 100%	$68,478,008

1	Discount rate at time of purchase.
2	Although the repurchase date is more than seven days after the date of purchase, the Fund has the right to terminate the repurchase agreement at any time with seven-days' notice.
3	Also represents cost for federal tax purposes.
4	Assets, other than investments in securities, less liabilities. See Statement of Assets and Liabilities.

Note: The categories of investments are shown as a percentage of total net assets at May 31, 2011.

Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels listed below:

Level 1 — quoted prices in active markets for identical securities, including investment companies with daily net asset values, if applicable.

Level 2 — other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.). Also includes securities valued at amortized cost.

Level 3 — significant unobservable inputs (including the Fund's own assumptions in determining the fair value of investments).

The inputs or methodology used for valuing securities are not an indication of the risk associated with investing in those securities.

As of May 31, 2011, all investments of the Fund are valued at amortized cost, which is considered a Level 2 input in valuing the Fund's assets.

See Notes which are an integral part of the Financial Statements

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Statement of Assets and Liabilities

May 31, 2011

Assets:
Investment in repurchase agreements	$43,365,000
Investments in securities	25,029,351
Total investments in securities, at amortized cost and fair value		$68,394,351
Cash		246
Income receivable		106,772
TOTAL ASSETS		68,501,369
Liabilities:
Payable for custodian fees	3,762
Payable for transfer and dividend disbursing agent fees and expenses	4,162
Payable for Directors'/Trustees' fees	601
Payable for legal fees	862
Payable for portfolio accounting fees	3,437
Payable for share registration costs	7,720
Payable for printing and postage	649
Accrued expenses	2,168
TOTAL LIABILITIES		23,361
Net assets for 68,477,774 shares outstanding		$68,478,008
Net Assets Consist of:
Paid-in capital		$68,477,784
Accumulated net realized gain on investments		224
TOTAL NET ASSETS		$68,478,008
Net Asset Value, Offering Price and Redemption Proceeds Per Share:
$68,478,008 ÷ 68,477,774 shares outstanding, no par value, unlimited shares authorized		$1.00

See Notes which are an integral part of the Financial Statements

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Statement of Operations

Year Ended May 31, 2011

Investment Income:
Interest			$153,602
Expenses:
Investment adviser fee (Note 5)		$390,554
Administrative fee (Note 5)		150,000
Custodian fees		12,501
Transfer and dividend disbursing agent fees and expenses		25,975
Directors'/Trustees' fees		11,334
Auditing fees		18,525
Legal fees		7,032
Portfolio accounting fees		41,836
Distribution services fee (Note 5)		150,754
Share registration costs		25,233
Printing and postage		9,507
Insurance premiums		4,300
Miscellaneous		28,971
TOTAL EXPENSES		876,522
Waivers and Reimbursements (Note 5):
Waiver of investment adviser fee	$(390,554)
Waiver of administrative fee	(24,218)
Waiver of distribution services fee	(150,754)
Reimbursement of transfer and dividend disbursing agent fees and expenses	(600)
Reimbursement of other operating expenses	(156,794)
TOTAL WAIVERS AND REIMBURSEMENTS		(722,920)
Net expenses			153,602
Net investment income			—
Net realized gain on investments			224
Change in net assets resulting from operations			$224

See Notes which are an integral part of the Financial Statements

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Statement of Changes in Net Assets

Year Ended May 31	2011	2010
Increase (Decrease) in Net Assets
Operations:
Net investment income	$ —	$ —
Net realized gain on investments	224	123
CHANGE IN NET ASSETS RESULTING FROM OPERATIONS	224	123
Distributions to Shareholders:
Distributions from net realized gain on investments	(116)	—
Share Transactions:
Proceeds from sale of shares	261,570,920	598,895,311
Net asset value of shares issued to shareholders in payment of distributions declared	24	—
Cost of shares redeemed	(286,090,956)	(636,800,453)
CHANGE IN NET ASSETS RESULTING FROM SHARE TRANSACTIONS	(24,520,012)	(37,905,142)
Change in net assets	(24,519,904)	(37,905,019)
Net Assets:
Beginning of period	92,997,912	130,902,931
End of period	$68,478,008	$92,997,912

See Notes which are an integral part of the Financial Statements

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Notes to Financial Statements

May 31, 2011

1. ORGANIZATION

Cash Trust Series II (the “Trust”) is registered under the Investment Company Act of 1940, as amended (the “Act”), as an open-end management investment company. The Trust consists of one portfolio, Federated Treasury Cash Series II (the “Fund”). The investment objective of the Fund is to provide current income consistent with stability of principal and liquidity.

2. SIGNIFICANT ACCOUNTING POLICIES

The following is a summary of significant accounting policies consistently followed by the Fund in the preparation of its financial statements. These policies are in conformity with U.S. generally accepted accounting principles (GAAP).

Investment Valuation

Securities are valued at amortized cost. Under the amortized cost valuation method, an investment is valued initially at its cost as determined in accordance with GAAP. The Fund then adjusts the amount of interest income accrued each day over the term of the investment to account for any difference between the initial cost of the investment and the amount payable at its maturity. If amortized cost is determined not to approximate market value, the fair value of the portfolio securities will be determined under procedures established by and under the general supervision of the Board of Trustees (the “Trustees”).

Repurchase Agreements

The Fund may invest in repurchase agreements for short-term liquidity purposes. It is the policy of the Fund to require the other party to a repurchase agreement to transfer to the Fund's custodian or sub-custodian eligible securities or cash with a market value (after transaction costs) at least equal to the repurchase price to be paid under the repurchase agreement. The eligible securities are transferred to accounts with the custodian or sub-custodian in which the Fund holds a “securities entitlement” and exercises “control” as those terms are defined in the Uniform Commercial Code. The Fund has established procedures for monitoring the market value of the transferred securities and requiring the transfer of additional eligible securities if necessary to equal at least the repurchase price. These procedures also allow the other party to require securities to be transferred from the account to the extent that their market value exceeds the repurchase price or in exchange for other eligible securities of equivalent market value.

The insolvency of the other party or other failure to repurchase the securities may delay the disposition of the underlying securities or cause the Fund to receive less than the full repurchase price. Under the terms of the repurchase agreement, any amounts received by the Fund in excess of the repurchase price and related transaction costs must be remitted to the other party.

The Fund may enter into repurchase agreements in which eligible securities are transferred into joint trading accounts maintained by the custodian or sub-custodian for investment companies and other clients advised by the Fund's Adviser and its affiliates. The Fund will participate on a pro rata basis with the other investment companies and clients in its share of the securities transferred under such repurchase agreements and in its share of proceeds from any repurchase or other disposition of such securities.

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Investment Income, Gains and Losses, Expenses and Distributions

Investment transactions are accounted for on a trade-date basis. Realized gains and losses from investment transactions are recorded on an identified-cost basis. Interest income and expenses are accrued daily. Distributions to shareholders are recorded on the ex-dividend date. Distributions of net investment income are declared daily and paid monthly.

Premium and Discount Amortization

All premiums and discounts are amortized/accreted using the effective interest rate method.

Federal Taxes

It is the Fund's policy to comply with the Subchapter M provision of the Internal Revenue Code and to distribute to shareholders each year substantially all of its income. Accordingly, no provision for federal income tax is necessary. As of and during the year ended May 31, 2011, the Fund did not have a liability for any uncertain tax positions. The Fund recognizes interest and penalties, if any, related to tax liabilities as income tax expense in the Statement of Operations. As of May 31, 2011, tax years 2008 through 2011 remain subject to examination by the Fund's major tax jurisdictions, which include the United States of America and the Commonwealth of Massachusetts.

When-Issued and Delayed Delivery Transactions

The Fund may engage in when-issued or delayed delivery transactions. The Fund records when-issued securities on the trade date and maintains security positions such that sufficient liquid assets will be available to make payment for the securities purchased. Securities purchased on a when-issued or delayed delivery basis are marked to market daily and begin earning interest on the settlement date. Losses may occur on these transactions due to changes in market conditions or the failure of counterparties to perform under the contract.

Other

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts of assets, liabilities, expenses and revenues reported in the financial statements. Actual results could differ from those estimated.

3. shares of beneficial interest

The following table summarizes share activity:

Year Ended May 31	2011	2010
Shares sold	261,570,920	598,895,311
Shares issued to shareholders in payment of distributions declared	24	—
Shares redeemed	(286,090,956)	(636,800,453)
NET CHANGE RESULTING FROM FUND SHARE TRANSACTIONS	(24,520,012)	(37,905,142)

4. FEDERAL TAX INFORMATION

The tax character of distributions as reported on the Statement of Changes in Net Assets for the years ended May 31, 2011 and 2010, was as follows:

	2011	2010
Ordinary income1	$116	$ —

1 For tax purposes, short-term capital gain distributions are treated as ordinary income distributions.

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As of May 31, 2011, the components of distributable earnings on a tax basis were as follows:

Undistributed ordinary income² $224

2 For tax purposes, short-term capital gains are treated as ordinary income for distribution purposes.

5. INVESTMENT ADVISER FEE AND OTHER TRANSACTIONS WITH AFFILIATES

Investment Adviser Fee

Federated Investment Management Company is the Fund's investment adviser (the “Adviser”). The advisory agreement between the Fund and the Adviser provides for an annual fee equal to 0.50% of the Fund's average daily net assets. Subject to the terms described in the Expense Limitation note, the Adviser may voluntarily choose to waive any portion of its fee and/or reimburse certain operating expenses of the Fund. For the year ended May 31, 2011, the Adviser voluntarily waived its entire fee of $390,554 and voluntarily reimbursed $156,794 of other operating expenses. In addition, an affiliate of the Adviser reimbursed $600 of transfer and dividend disbursing agent fees and expenses.

Administrative Fee

Federated Administrative Services (FAS), under the Administrative Services Agreement, provides the Fund with administrative personnel and services. The fee paid to FAS is based on the average aggregate daily net assets of certain Federated funds as specified below:

Administrative Fee	Average Aggregate Daily Net Assets of the Federated Funds
0.150%	on the first $5 billion
0.125%	on the next $5 billion
0.100%	on the next $10 billion
0.075%	on assets in excess of $20 billion

The administrative fee received during any fiscal year shall be at least $150,000 per portfolio and $40,000 per each additional class of Shares. Subject to the terms described in the Expense Limitation note, FAS may voluntarily choose to waive any portion of its fee. For the year ended May 31, 2011, FAS waived $24,218 of its fee. The net fee paid to FAS was 0.161% of average daily net assets of the Fund. The Fund is currently being charged the minimum administrative fee; therefore the fee as a percentage of average daily net assets is greater than the amounts presented in the chart above.

Distribution Services Fee

The Fund has adopted a Distribution Plan (the “Plan”) pursuant to Rule 12b-1 under the Act. Under the terms of the Plan, the Fund will compensate Federated Securities Corp. (FSC), the principal distributor, from the daily net assets of the Fund to finance activities intended to result in the sale of these shares. The Plan provides that the Fund may incur distribution expenses at 0.20% of average daily net assets, annually, to compensate FSC. Subject to the terms described in the Expense Limitation note, FSC may voluntarily choose to waive any portion of its fee. For the year ended May 31, 2011, FSC voluntarily waived its entire fee of $150,754.

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Expense Limitation

Due to the possibility of changes in market conditions and other factors, there can be no assurance that the level of waivers/reimbursement/reduction of Fund expenses reflected in the financial highlights will be maintained in the future. However, the Adviser and its affiliates (which may include FSC and FAS) have voluntarily agreed to waive their fees and/or reimburse expenses so that the total annual fund operating expenses (as shown in the financial highlights) paid by the Fund's Cash II Shares (after the voluntary waivers and reimbursements) will not exceed 0.83% (the “Fee Limit”), up to but not including the later of (the “Termination Date”): (a) August 1, 2012; or (b) the date of the Fund's next effective Prospectus. While the Adviser and its affiliates currently do not anticipate terminating or increasing this arrangement prior to the Termination Date, this arrangement may only be terminated or the Fee Limit increased prior to the Termination Date with the agreement of the Trustees.

General

Certain Officers and Trustees of the Fund are Officers and Directors or Trustees of the above companies.

6. LINE OF CREDIT

The Fund participates in a $100,000,000 unsecured, uncommitted revolving line of credit (LOC) agreement with PNC Bank. The LOC was made available for extraordinary or emergency purposes, primarily for financing redemption payments. Borrowings are charged interest at a rate offered to the Fund by PNC Bank at the time of the borrowing. As of May 31, 2011, there were no outstanding loans. During the year ended May 31, 2011, the Fund did not utilize the LOC.

7. INTERFUND LENDING

Pursuant to an Exemptive Order issued by the Securities and Exchange Commission, the Funds, along with other funds advised by subsidiaries of Federated Investors, Inc., may participate in an interfund lending program. This program provides an alternative credit facility allowing the Fund to borrow from other participating affiliated funds. As of May 31, 2011, there were no outstanding loans. During the year ended May 31, 2011, the program was not utilized.

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Report of Independent Registered Public Accounting Firm

TO THE BOARD OF DIRECTORS OF CASH TRUST SERIES II AND SHAREHOLDERS OF FEDERATED Treasury Cash Series II:

We have audited the accompanying statement of assets and liabilities of Federated Treasury Cash Series II (the “Fund”) (the sole portfolio of Cash Trust Series II), including the portfolio of investments, as of May 31, 2011, and the related statement of operations for the year then ended, the statement of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits.

We conducted our audits in accordance with standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Fund's internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of May 31, 2011 by correspondence with the custodian and others. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of the Federated Treasury Cash Series II, the sole portfolio of Cash Trust Series II, at May 31, 2011, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended, in conformity with U.S. generally accepted accounting principles.

Boston, Massachusetts
July 25, 2011

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Board of Trustees and Trust Officers

The Board of Trustees is responsible for managing the Trust's business affairs and for exercising all the Trust's powers except those reserved for the shareholders. The following tables give information about each Trustee and the senior officers of the Fund. Where required, the tables separately list Trustees who are “interested persons” of the Fund (i.e., “Interested” Trustees) and those who are not (i.e., “Independent” Trustees). Unless otherwise noted, the address of each person listed is Federated Investors Tower, 1001 Liberty Avenue, Pittsburgh, PA 15222. The address of all Independent Trustees listed is 4000 Ericsson Drive, Warrendale, PA 15086-7561; Attention: Mutual Fund Board. As of December 31, 2010, the Trust comprised one portfolio(s), and the Federated Fund Family consisted of 43 investment companies (comprising 136 portfolios). Unless otherwise noted, each Officer is elected annually. Unless otherwise noted, each Trustee oversees all portfolios in the Federated Fund Family and serves for an indefinite term. The Fund's Statement of Additional Information includes additional information about Trust Trustees and is available, without charge and upon request, by calling 1-800-341-7400.

Interested TRUSTEES Background

Name Birth Date Positions Held with Trust Date Service Began	Principal Occupation(s) for Past Five Years, Other Directorships Held and Previous Position(s)
John F. Donahue* Birth Date: July 28, 1924 Trustee Began serving: November 1990	Principal Occupations: Director or Trustee of the Federated Fund Family; Chairman and Director, Federated Investors, Inc.; Chairman of the Federated Fund Family's Executive Committee. Previous Positions: Chairman of the Federated Fund Family; Trustee, Federated Investment Management Company; Chairman and Director, Federated Investment Counseling.
J. Christopher Donahue* Birth Date: April 11, 1949 President and Trustee Began serving: November 1990	Principal Occupations: Principal Executive Officer and President of the Federated Fund Family; Director or Trustee of some of the Funds in the Federated Fund Family; President, Chief Executive Officer and Director, Federated Investors, Inc.; Chairman and Trustee, Federated Investment Management Company; Trustee, Federated Investment Counseling; Chairman and Director, Federated Global Investment Management Corp.; Chairman, Federated Equity Management Company of Pennsylvania and Passport Research, Ltd. (investment advisory subsidiary of Federated); Trustee, Federated Shareholder Services Company; Director, Federated Services Company. Previous Positions: President, Federated Investment Counseling; President and Chief Executive Officer, Federated Investment Management Company, Federated Global Investment Management Corp. and Passport Research, Ltd.

* Family relationships and reasons for “interested” status: John F. Donahue is the father of J. Christopher Donahue; both are “interested” due to their beneficial ownership of shares of Federated Investors, Inc. and the positions they hold with Federated and its subsidiaries.

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INDEPENDENT TRUSTEES Background

Name Birth Date Positions Held with Trust Date Service Began	Principal Occupation(s) for Past Five Years, Other Directorships Held, Previous Position(s) and Qualifications
Nicholas P. Constantakis, CPA Birth Date: September 3, 1939 Trustee Began serving: February 1998	Principal Occupation: Director or Trustee of the Federated Fund Family. Other Directorship Held: Director and Chairman of the Audit Committee, Michael Baker Corporation (architecture, engineering and construction services). Previous Position: Partner, Andersen Worldwide SC. Qualifications: Public accounting and director experience.
John F. Cunningham Birth Date: March 5, 1943 Trustee Began serving: January 1999	Principal Occupation: Director or Trustee of the Federated Fund Family. Other Directorships Held: Chairman, President and Chief Executive Officer, Cunningham & Co., Inc. (strategic business consulting); Trustee Associate, Boston College. Previous Positions: Director, Redgate Communications and EMC Corporation (computer storage systems); Chairman of the Board and Chief Executive Officer, Computer Consoles, Inc.; President and Chief Operating Officer, Wang Laboratories; Director, First National Bank of Boston; Director, Apollo Computer, Inc. Qualifications: Business management and director experience.
Maureen Lally-Green Birth Date: July 5, 1949 Trustee Began serving: August 2009	Principal Occupations: Director or Trustee of the Federated Fund Family; Director, Office of Church Relations, Diocese of Pittsburgh; Adjunct Professor of Law, Duquesne University School of Law. Other Directorships Held: Director, Auberle; Trustee, St. Francis University; Director, Ireland Institute of Pittsburgh; Director, UPMC Mercy Hospital; Regent, St. Vincent Seminary; Director, Epilepsy Foundation of Western and Central Pennsylvania; Director, Saint Thomas More Society, Allegheny County; Director, Carlow University. Previous Position: Pennsylvania Superior Court Judge. Qualifications: Legal and director experience.
Peter E. Madden Birth Date: March 16, 1942 Trustee Began serving: August 1991	Principal Occupation: Director or Trustee, and Chairman of the Board of Directors or Trustees, of the Federated Fund Family. Previous Positions: Representative, Commonwealth of Massachusetts General Court; President, Chief Operating Officer and Director, State Street Bank and Trust Company and State Street Corporation (retired); Director, VISA USA and VISA International; Chairman and Director, Massachusetts Bankers Association; Director, Depository Trust Corporation; Director, The Boston Stock Exchange. Qualifications: Business management, mutual fund services and director experience.

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Name Birth Date Positions Held with Trust Date Service Began	Principal Occupation(s) for Past Five Years, Other Directorships Held, Previous Position(s) and Qualifications
Charles F. Mansfield, Jr. Birth Date: April 10, 1945 Trustee Began serving: June 1999	Principal Occupations: Director or Trustee and Chairman of the Audit Committee of the Federated Fund Family; Management Consultant. Previous Positions: Chief Executive Officer, PBTC International Bank; Partner, Arthur Young & Company (now Ernst & Young LLP); Chief Financial Officer of Retail Banking Sector, Chase Manhattan Bank; Senior Vice President, HSBC Bank USA (formerly, Marine Midland Bank); Vice President, Citibank; Assistant Professor of Banking and Finance, Frank G. Zarb School of Business, Hofstra University; Executive Vice President, DVC Group, Inc. (marketing, communications and technology). Qualifications: Banking, business management, education and director experience.
R. James Nicholson Birth Date: February 4, 1938 Trustee Began serving: January 2008	Principal Occupations: Director or Trustee of the Federated Fund Family; Senior Counsel, Brownstein Hyatt Farber Schrek, P.C.; Former Secretary of the U.S. Dept. of Veterans Affairs; Former U.S. Ambassador to the Holy See; Former Chairman of the Republican National Committee. Other Directorships Held: Director, Horatio Alger Association; Director, The Daniels Fund. Previous Positions: Colonel, U.S. Army Reserve; Partner, Calkins, Kramer, Grimshaw and Harring, P.C.; General Counsel, Colorado Association of Housing and Building; Chairman and CEO, Nicholson Enterprises, Inc. (real estate holding company); Chairman and CEO, Renaissance Homes of Colorado. Qualifications: Legal, government, business management and director experience.
Thomas M. O'Neill Birth Date: June 14, 1951 Trustee Began serving: October 2006	Principal Occupations: Director or Trustee of the Federated Fund Family; Sole Proprietor, Navigator Management Company (investment and strategic consulting). Other Directorships Held: Board of Overseers, Children's Hospital of Boston; Visiting Committee on Athletics, Harvard College. Previous Positions: Chief Executive Officer and President, Managing Director and Chief Investment Officer, Fleet Investment Advisors; President and Chief Executive Officer, Aeltus Investment Management, Inc.; General Partner, Hellman, Jordan Management Co., Boston, MA; Chief Investment Officer, The Putnam Companies, Boston, MA; Credit Analyst and Lending Officer, Fleet Bank; Director and Consultant, EZE Castle Software (investment order management software); Director, Midway Pacific (lumber). Qualifications: Business management, mutual fund, director and investment experience.

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Name Birth Date Positions Held with Trust Date Service Began	Principal Occupation(s) for Past Five Years, Other Directorships Held, Previous Position(s) and Qualifications
John S. Walsh Birth Date: November 28, 1957 Trustee Began serving: June 1999	Principal Occupations: Director or Trustee of the Federated Fund Family; President and Director, Heat Wagon, Inc. (manufacturer of construction temporary heaters); President and Director, Manufacturers Products, Inc. (distributor of portable construction heaters); President, Portable Heater Parts, a division of Manufacturers Products, Inc. Previous Position: Vice President, Walsh & Kelly, Inc. Qualifications: Business management and director experience.
James F. Will Birth Date: October 12, 1938 Trustee Began serving: April 2006	Principal Occupations: Director or Trustee of the Federated Fund Family; formerly, Vice Chancellor and President, Saint Vincent College. Other Directorships Held: Trustee, Saint Vincent College; Director, Alleghany Corporation; Trustee, Wheeling Jesuit University; Director, Liberty Tire Recycling. Previous Positions: Chairman, President and Chief Executive Officer, Armco, Inc.; President and Chief Executive Officer, Cyclops Industries; President and Chief Operating Officer, Kaiser Steel Corporation. Qualifications: Business management, education and director experience.

OFFICERS

Name Birth Date Positions Held with Trust Date Service Began	Principal Occupation(s) for Past Five Years and Previous Position(s)
John W. McGonigle Birth Date: October 26, 1938 EXECUTIVE VICE PRESIDENT AND SECRETARY Began serving: November 1990	Principal Occupations: Executive Vice President and Secretary of the Federated Fund Family; Vice Chairman, Executive Vice President, Secretary and Director, Federated Investors, Inc. Previous Positions: Trustee, Federated Investment Management Company and Federated Investment Counseling; Director, Federated Global Investment Management Corp., Federated Services Company and Federated Securities Corp.
Richard A. Novak Birth Date: December 25, 1963 Treasurer Began serving: January 2006	Principal Occupations: Principal Financial Officer and Treasurer of the Federated Fund Family; Senior Vice President, Federated Administrative Services; Financial and Operations Principal for Federated Securities Corp., Edgewood Services, Inc. and Southpointe Distribution Services, Inc. Previous Positions: Controller of Federated Investors, Inc.; Vice President, Finance of Federated Services Company; held various financial management positions within The Mercy Hospital of Pittsburgh; Auditor, Arthur Andersen & Co.

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Name Birth Date Positions Held with Trust Date Service Began	Principal Occupation(s) for Past Five Years and Previous Position(s)
Richard B. Fisher Birth Date: May 17, 1923 Vice Chairman Began serving: August 2002	Principal Occupations: Vice Chairman or Vice President of some of the Funds in the Federated Fund Family; Vice Chairman, Federated Investors, Inc.; Chairman, Federated Securities Corp. Previous Positions: President and Director or Trustee of some of the Funds in the Federated Fund Family; Executive Vice President, Federated Investors, Inc.; Director and Chief Executive Officer, Federated Securities Corp.
Brian P. Bouda Birth Date: February 28, 1947 CHIEF COMPLIANCE OFFICER AND SENIOR VICE PRESIDENT Began serving: August 2004	Principal Occupations: Senior Vice President and Chief Compliance Officer of the Federated Fund Family; Vice President and Chief Compliance Officer of Federated Investors, Inc. and Chief Compliance Officer of its subsidiaries. Mr. Bouda joined Federated in 1999 and is a member of the American Bar Association and the State Bar Association of Wisconsin.
Deborah A. Cunningham Birth Date: September 15, 1959 Chief Investment Officer and Vice President Began serving: May 2004	Principal Occupations: Deborah A. Cunningham has been the Fund's Portfolio Manager since January 1994. Ms. Cunningham was named Chief Investment Officer of money market products in 2004. She joined Federated in 1981 and has been a Senior Portfolio Manager since 1997 and an Executive Vice President of the Fund's Adviser since 2009. Ms. Cunningham has received the Chartered Financial Analyst designation and holds an M.S.B.A. in Finance from Robert Morris College.
Susan R. Hill Birth Date: June 20, 1963 VICE PRESIDENT Began serving: August 2009	Principal Occupations: Susan R. Hill has been the Fund's Portfolio Manager since January 1994. She is Vice President of the Trust. Ms. Hill joined Federated in 1990 and has been a Senior Portfolio Manager since 2003 and a Senior Vice President of the Fund's Adviser since 2005. Ms. Hill was a Portfolio Manager from 1994 until 2003 and served as Vice President of the Fund's Adviser from 1997 until 2004 and an Assistant Vice President of the Fund's Adviser from 1994 until 1997. Ms. Hill has received the Chartered Financial Analyst designation and holds an M.S. in Industrial Administration from Carnegie Mellon University.

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Evaluation and Approval of Advisory Contract – May 2011

federated treasury cash series ii (the “Fund”)

The Fund's Board reviewed the Fund's investment advisory contract at meetings held in May 2011. The Board's decision regarding the contract reflects the exercise of its business judgment on whether to continue the existing arrangements.

In this connection, the Federated Funds' Board had previously appointed a Senior Officer, whose duties include specified responsibilities relating to the process by which advisory fees are to be charged to a Federated fund. The Senior Officer has the authority to retain consultants, experts, or staff as may be reasonably necessary to assist in the performance of his duties, reports directly to the Board, and may be terminated only with the approval of a majority of the independent members of the Board. The Senior Officer prepared and furnished to the Board an independent, written evaluation that covered topics discussed below (the “Evaluation”). The Board considered that Evaluation, along with other information, in deciding to approve the advisory contract.

During its review of the contract, the Board considered compensation and benefits received by the Adviser. This included the fees received for services provided to the Fund by other entities in the Federated organization and research services (if any) received by the Adviser from brokers that execute Federated fund trades, as well as advisory fees. The Board is also familiar with and considered judicial decisions concerning allegedly excessive investment advisory fees, which have indicated that the following factors may be relevant to an Adviser's fiduciary duty with respect to its receipt of compensation from a fund: the nature and quality of the services provided by the Adviser, including the performance of the fund; the Adviser's cost of providing the services; the extent to which the Adviser may realize “economies of scale” as a fund grows larger; any indirect benefits that may accrue to the Adviser and its affiliates as a result of the Adviser's relationship with a fund; performance and expenses of comparable funds; and the extent to which the independent Board members are fully informed about all facts the Board deems relevant bearing on the Adviser's services and fees. The Board further considered management fees (including any components thereof) charged to institutional and other clients of the Adviser or what might be viewed as like services, and the cost to the Adviser and its affiliates of supplying services pursuant to the management fee agreements, excluding any intra-corporate profit and profit margins of the Adviser and its affiliates for supplying such services. The Board was aware of these factors and was guided by them in its review of the Fund's advisory contract to the extent it considered them to be appropriate and relevant, as discussed further below.

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The Board considered and weighed these circumstances in light of its substantial accumulated experience in governing the Fund and working with Federated on matters relating to the Federated funds, and was assisted in its deliberations by independent legal counsel. Throughout the year, the Board has requested and received substantial and detailed information about the Fund and the Federated organization that was in addition to the extensive materials that comprise and accompany the Senior Officer's Evaluation. Federated provided much of this information at each regular meeting of the Board, and furnished additional information in connection with the particular meeting at which the Board's formal review of the advisory contract occurred. Between regularly scheduled meetings, the Board also received information on particular matters as the need arose. Thus, the Board's consideration of the advisory contract included review of the Senior Officer's Evaluation, accompanying data and additional information covering such matters as: the Adviser's investment philosophy, revenue, profitability, personnel and processes; investment and operating strategies; the Fund's short- and long-term performance (in absolute terms, both on a gross basis and net of expenses, as well as in relationship to its particular investment program and certain competitor or “peer group” funds and/or other benchmarks, as appropriate), and comments on the reasons for performance; the Fund's investment objectives; the Fund's expenses (including the advisory fee itself and the overall expense structure of the Fund, both in absolute terms and relative to similar and/or competing funds, with due regard for contractual or voluntary expense limitations); the use and allocation of brokerage commissions derived from trading the Fund's portfolio securities (if any); and the nature, quality and extent of the advisory and other services provided to the Fund by the Adviser and its affiliates. The Board also considered the preferences and expectations of Fund shareholders and their relative sophistication; the continuing state of competition in the mutual fund industry and market practices; the range of comparable fees for similar funds in the mutual fund industry; the Fund's relationship to the Federated family of funds which include a comprehensive array of funds with different investment objectives, policies and strategies which are available for exchange without the incurrence of additional sales charges; compliance and audit reports concerning the Federated funds and the Federated companies that service them (including communications from regulatory agencies), as well as Federated's responses to any issues raised therein; and relevant developments in the mutual fund industry and how the Federated funds and/or Federated are responding to them. The Board's evaluation process is evolutionary. The criteria considered and the emphasis placed on relevant criteria change in recognition of changing circumstances in the mutual fund marketplace.

With respect to the Fund's performance and expenses in particular, the Board has found the use of comparisons to other mutual funds with comparable investment programs to be relevant, given the high degree of competition in the mutual fund business. The Board focused on comparisons with other similar Annual Shareholder Report

21

mutual funds more heavily than non-mutual fund products or services because it is believed that they are more relevant. For example, other mutual funds are the products most like the Fund, they are readily available to Fund shareholders as alternative investment vehicles, and they are the type of investment vehicle in fact chosen and maintained by the Fund's investors. The range of their fees and expenses therefore appears to be a generally reliable indication of what consumers have found to be reasonable in the precise marketplace in which the Fund competes. The Fund's ability to deliver competitive performance when compared to its peer group was a useful indicator of how the Adviser is executing the Fund's investment program, which in turn assisted the Board in reaching a conclusion that the nature, extent, and quality of the Adviser's investment management services were such as to warrant continuation of the advisory contract. In this regard, the Senior Officer has reviewed Federated's fees for providing advisory services to products outside the Federated family of funds (e.g., institutional and separate accounts). He concluded that mutual funds and institutional accounts are inherently different products. Those differences include, but are not limited to, different types of targeted investors; being subject to different laws and regulations; different legal structures; different average account sizes; different associated costs; different portfolio management techniques made necessary by different cash flows; and portfolio manager time spent in review of securities pricing. The Senior Officer did not consider these fee schedules to be determinative in judging the appropriateness of mutual fund advisory contracts.

The Senior Officer reviewed information compiled by Federated, using data supplied by independent fund ranking organizations, regarding the performance of, and fees charged by, other mutual funds, noting his view that comparisons to fund peer groups are relevant in judging the reasonableness of proposed fees.

The Fund's performance fell below the median of the relevant peer group for the one-year period covered by the Evaluation. The Board discussed the Fund's performance with the Adviser and recognized the efforts being undertaken by the Adviser. The Board will continue to monitor these efforts and the performance of the Fund.

The Board also received financial information about Federated, including information regarding the compensation and benefits Federated derived from its relationships with the Federated funds. This information covered not only the fees under the advisory contracts, but also fees received by Federated's subsidiaries for providing other services to the Federated funds under separate contracts (e.g., for serving as the Federated funds' administrator). The information also detailed any indirect benefit Federated may derive from its receipt of research services from brokers who execute Federated fund trades. In addition, the Board considered the fact that, in order for a fund to be competitive in the marketplace, Federated and its affiliates frequently waived fees Annual Shareholder Report

22

and/or reimbursed expenses and have disclosed to fund investors and/or indicated to the Board their intention to do so in the future, where appropriate. Moreover, the Board receives regular reporting as to the institution or elimination of these voluntary waivers.

Federated furnished information, requested by the Senior Officer, that reported revenues on a fund-by-fund basis and made estimates of the allocation of expenses on a fund-by-fund basis, using allocation methodologies specified by the Senior Officer. The Senior Officer noted that, although they may apply consistent allocation processes, the inherent difficulties in allocating costs (and the unavoidable arbitrary aspects of that exercise) and the lack of consensus on how to allocate those costs may render such allocation information unreliable. The allocation information was considered in the analysis by the Board but was determined to be of limited use.

The Board and the Senior Officer also reviewed information compiled by Federated comparing profitability information for Federated to other publicly held fund management companies. In this regard, the Senior Officer noted the limited availability of such information, but nonetheless concluded that Federated's profit margins did not appear to be excessive and the Board agreed.

The Senior Officer's Evaluation also discussed the notion of possible realization of “economies of scale” as a fund grows larger. The Board considered in this regard that the Adviser has made significant and long-term investments in areas that support all of the Federated funds, such as personnel and processes for the portfolio management, compliance, internal audit, and risk management functions; and systems technology; and that the benefits of these efforts (as well as any economies, should they exist) were likely to be enjoyed by the fund complex as a whole. Finally, the Board also noted the absence of any applicable regulatory or industry guidelines on this subject, which (as discussed in the Senior Officer's Evaluation) is compounded by the lack of any common industry practice or general pattern with respect to structuring fund advisory fees with “breakpoints” that serve to reduce the fee as the fund attains a certain size. The Senior Officer did not recommend institution of breakpoints in pricing Federated's fund advisory services at this time.

It was noted in the materials for the Board meeting that for the period covered by the Evaluation, the Fund's investment advisory fee was waived in its entirety. The Board reviewed the contractual fee rate and other expenses of the Fund with the Adviser and was satisfied that the overall expense structure of the Fund remained competitive.

The Senior Officer noted that, considering the totality of the circumstances, and all of the factors referenced within his Evaluation, he had concluded that, subject to comments and recommendations made within his Evaluation, his observations and the information accompanying the Evaluation supported a finding by the Board that the management fees for each of the funds are reasonable and that Federated appeared to provide appropriate administrative services to the Fund for the fees paid. Under these circumstances, no changes Annual Shareholder Report

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were recommended to, and no objection was raised to, the continuation of the Fund's advisory contract. The Board concluded that the nature, quality and scope of services provided the Fund by the Adviser and its affiliates were satisfactory.

In its decision to continue an existing investment advisory contract, the Board was mindful of the potential disruptions of the Fund's operations and various risks, uncertainties and other effects that could occur as a result of a decision to terminate or not renew an advisory contract. In particular, the Board recognized that many shareholders have invested in the Fund on the strength of the Adviser's industry standing and reputation and with the expectation that the Adviser will have a continuing role in providing advisory services to the Fund. Thus, the Board's approval of the advisory contract reflected the fact that it is the shareholders who have effectively selected the Adviser by virtue of having invested in the Fund.

The Board based its decision to approve the advisory contract on the totality of the circumstances and relevant factors and with a view to past and future long-term considerations. Not all of the factors and considerations identified above were necessarily relevant to the Fund, nor did the Board consider any one of them to be determinative. With respect to the factors that were relevant, the Board's decision to approve the contract reflects its determination that Federated's performance and actions provided a satisfactory basis to support the decision to continue the existing arrangements.

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Voting Proxies on Fund Portfolio Securities

A description of the policies and procedures that the Fund uses to determine how to vote proxies, if any, relating to securities held in the Fund's portfolio is available, without charge and upon request, by calling 1-800-341-7400. A report on “Form N-PX” of how the Fund voted any such proxies during the most recent 12-month period ended June 30 is available from Federated's website at FederatedInvestors.com. To access this information from the home page, select “View All” next to “Find Products.” Select a fund name and share class, if applicable, to go to the Fund Overview page. On the Fund Overview page, select the “Documents” tab. At the bottom of that page, select “Proxy Voting Record Report (Form N-PX).” Form N-PX filings are also available at the SEC's website at www.sec.gov.

Quarterly Portfolio Schedule

The Fund files with the SEC a complete schedule of its portfolio holdings, as of the close of the first and third quarters of its fiscal year, on “Form N-Q.” These filings are available on the SEC's website at www.sec.gov and may be reviewed and copied at the SEC's Public Reference Room in Washington, DC. (Call 1-800-SEC-0330 for information on the operation of the Public Reference Room.) You may also access this information from the “Products” section of Federated's website at FederatedInvestors.com. From the home page, select “View All” next to “Find Products.” Select a fund name and share class, if applicable, to go to the Fund Overview page. On the Fund Overview page, select the “Documents” tab. At the bottom of that page, select “Form N-Q.”

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Mutual funds are not bank deposits or obligations, are not guaranteed by any bank and are not insured or guaranteed by the U.S. government, the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency. Investment in mutual funds involves investment risk, including the possible loss of principal. Although money market funds seek to maintain a stable net asset value of $1.00 per share, there is no assurance that they will be able to do so.

This Report is authorized for distribution to prospective investors only when preceded or accompanied by the Fund's Prospectus, which contains facts concerning its objective and policies, management fees, expenses and other information.

Federated Treasury Cash Series II
Federated Investors Funds
4000 Ericsson Drive
Warrendale, PA 15086-7561

Contact us at FederatedInvestors.com
or call 1-800-341-7400.

Federated Securities Corp., Distributor

Cusip 147552301

G00889-01 (7/11)

Federated is a registered trademark of Federated Investors, Inc.
2011  ^© Federated Investors, Inc.

Item 2.                      Code of Ethics

(a) As of the end of the period covered by this report, the registrant has adopted a code of ethics (the "Section 406 Standards for Investment Companies - Ethical Standards for Principal Executive and Financial Officers") that applies to the registrant's Principal Executive Officer and Principal Financial Officer; the registrant's Principal Financial Officer also serves as the Principal Accounting Officer.

(c) Not Applicable

(d) Not Applicable

(e) Not Applicable

(f)(3) The registrant hereby undertakes to provide any person, without charge, upon request, a copy of the code of ethics.  To request a copy of the code of ethics, contact the registrant at 1-800-341-7400, and ask for a copy of the Section 406 Standards for Investment Companies - Ethical Standards for Principal Executive and Financial Officers.

Item 3. Audit Committee Financial Expert

The registrant's Board has determined that each of the following members of the Board's Audit Committee is an “audit committee financial expert,” and is "independent," for purposes of this Item:   Nicholas P. Constantakis, Charles F. Mansfield, Jr., Thomas M. O'Neill and John S. Walsh.

Item 4.                      Principal Accountant Fees and Services

(a)           Audit Fees billed to the registrant for the two most recent fiscal years:

Fiscal year ended 2011 - $18,500

Fiscal year ended 2010 - $18,500

(b)                      Audit-Related Fees billed to the registrant for the two most recent fiscal years:

Fiscal year ended 2011 - $24

Fiscal year ended 2010 - $31

Travel to Audit Committee Meeting.

Amount requiring approval of the registrant’s audit committee pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X, $0 and $0 respectively.

(c)                       Tax Fees billed to the registrant for the two most recent fiscal years:

Fiscal year ended 2011 - $0

Fiscal year ended 2010 - $0

Amount requiring approval of the registrant’s audit committee pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X, $ 0 and $ 0 respectively.

(d)                      All Other Fees billed to the registrant for the two most recent fiscal years:

Fiscal year ended 2011 - $0

Fiscal year ended 2010 - $0

Amount requiring approval of the registrant’s audit committee pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X, $0 and $0 respectively.

(e)(1)                      Audit Committee Policies regarding Pre-approval of Services.

The Audit Committee is required to pre-approve audit and non-audit services performed by the independent auditor in order to assure that the provision of such services do not impair the auditor’s independence.  Unless a type of service to be provided by the independent auditor has received general pre-approval, it will require specific pre-approval by the Audit Committee.  Any proposed services exceeding pre-approved cost levels will require specific pre-approval by the Audit Committee.

Certain services have the general pre-approval of the Audit Committee.  The term of the general pre-approval is 12 months from the date of pre-approval, unless the Audit Committee specifically provides for a different period.  The Audit Committee will annually review the services that may be provided by the independent auditor without obtaining specific pre-approval from the Audit Committee and may grant general pre-approval for such services.  The Audit Committee will revise the list of general pre-approved services from time to time, based on subsequent determinations.  The Audit Committee will not delegate its responsibilities to pre-approve services performed by the independent auditor to management.

The Audit Committee has delegated pre-approval authority to its Chairman.  The Chairman will report any pre-approval decisions to the Audit Committee at its next scheduled meeting.  The Committee will designate another member with such pre-approval authority when the Chairman is unavailable.

AUDIT SERVICES

The annual Audit services engagement terms and fees will be subject to the specific pre-approval of the Audit Committee.  The Audit Committee must approve any changes in terms, conditions and fees resulting from changes in audit scope, registered investment company (RIC) structure or other matters.

In addition to the annual Audit services engagement specifically approved by the Audit Committee, the Audit Committee may grant general pre-approval for other Audit Services, which are those services that only the independent auditor reasonably can provide.  The Audit Committee has pre-approved certain Audit services, all other Audit services must be specifically pre-approved by the Audit Committee.

AUDIT-RELATED SERVICES

Audit-related services are assurance and related services that are reasonably related to the performance of the audit or review of the Company’s financial statements or that are traditionally performed by the independent auditor.  The Audit Committee believes that the provision of Audit-related services does not impair the independence of the auditor, and has pre-approved certain Audit-related services, all other Audit-related services must be specifically pre-approved by the Audit Committee.

TAX SERVICES

The Audit Committee believes that the independent auditor can provide Tax services to the Company such as tax compliance, tax planning and tax advice without impairing the auditor’s independence.  However, the Audit Committee will not permit the retention of the independent auditor in connection with a transaction initially recommended by the independent auditor, the purpose of which may be tax avoidance and the tax treatment of which may not be supported in the Internal Revenue Code and related regulations.  The Audit Committee has pre-approved certain Tax services, all Tax services involving large and complex transactions must be specifically pre-approved by the Audit Committee.

ALL OTHER SERVICES

With respect to the provision of services other than audit, review or attest services the pre-approval requirement is waived if:

(1)   The aggregate amount of all such services provided constitutes no more than five percent of the total amount of revenues paid by the registrant, the registrant’s adviser (not including any sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant to its accountant during the fiscal year in which the services are provided;

(2)   Such services were not recognized by the registrant, the registrant’s adviser (not including any sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant  at the time of the engagement to be non-audit services; and

(3)   Such services are promptly brought to the attention of the Audit Committee of the issuer and approved prior to the completion of the audit by the Audit Committee or by one or more members of the Audit Committee who are members of the board of directors to whom authority to grant such approvals has been delegated by the Audit Committee.

The Audit Committee may grant general pre-approval to those permissible non-audit services classified as All Other services that it believes are routine and recurring services, and would not impair the independence of the auditor.

The SEC’s rules and relevant guidance should be consulted to determine the precise definitions of prohibited non-audit services and the applicability of exceptions to certain of the prohibitions.

PRE-APPROVAL FEE LEVELS

Pre-approval fee levels for all services to be provided by the independent auditor will be established annually by the Audit Committee.  Any proposed services exceeding these levels will require specific pre-approval by the Audit Committee.

PROCEDURES

Requests or applications to provide services that require specific approval by the Audit Committee will be submitted to the Audit Committee by both the independent auditor and the Principal Accounting Officer and/or Internal Auditor, and must include a joint statement as to whether, in their view, the request or application is consistent with the SEC’s rules on auditor independence.

(e)(2)                      Percentage of services identified in items 4(b) through 4(d) that were approved by the registrants audit committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X:

4(b)

Fiscal year ended 2011 – 0%

Fiscal year ended 2010 - 0%

Percentage of services provided to the registrants investment adviser and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant that were approved by the registrants audit committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X, 0% and 0% respectively.

4(c)

Fiscal year ended 2011 – 0%

Fiscal year ended 2010 – 0%

Percentage of services provided to the registrants investment adviser and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant that were approved by the registrants audit committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X, 0% and 0% respectively.

4(d)

Fiscal year ended 2011 – 0%

Fiscal year ended 2010 – 0%

Percentage of services provided to the registrants investment adviser and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant that were approved by the registrants audit committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X, 0% and 0% respectively.

(f)                      NA

(g)                      Non-Audit Fees billed to the registrant, the registrant’s investment adviser, and certain entities controlling, controlled by or under common control with the investment adviser:

Fiscal year ended 2011 - $320,020

Fiscal year ended 2010 - $359,138

(h)                      The registrant’s Audit Committee has considered that the provision of non-audit services that were rendered to the registrant’s adviser (not including any sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant that were not pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant’s independence.

Item 5.                      Audit Committee of Listed Registrants

Not Applicable

Item 6.                      Schedule of Investments

Not Applicable

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies

Not Applicable

Item 8. Portfolio Managers of Closed-End Management Investment Companies

Not Applicable

Item 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers

Not Applicable

Item 10.                                Submission of Matters to a Vote of Security Holders

Not Applicable

Item 11.                                Controls and Procedures

(a) The registrant’s President and Treasurer have concluded that the

registrant’s disclosure controls and procedures (as defined in rule 30a-3(c) under the Act) are effective in design and operation and are sufficient to form the basis of the certifications required by Rule 30a-(2) under the Act, based on their evaluation of these disclosure controls and procedures within 90 days of the filing date of this report on Form N-CSR.

(b) There were no changes in the registrant’s internal control over financial reporting (as defined in rule 30a-3(d) under the Act) during the second fiscal quarter of the period covered by this report that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 12.                                Exhibits

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.

Registrant	Cash Trust Series II
By	/S/ Richard A. Novak
	Richard A. Novak, Principal Financial Officer
Date	July 19, 2011
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/    J. Christopher Donahue
	J. Christopher Donahue, Principal Executive Officer
Date	July 19, 2011
By	/S/    Richard A. Novak
	Richard A. Novak, Principal Financial Officer
Date	July 19, 2011