FORM 10 - Q
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                 QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF
                      THE SECURITIES EXCHANGE ACT OF 1934


                  For the nine months ended September 30, 1999


                         Commission file number 0-11716


                          COMMUNITY BANK SYSTEM, INC.
             (Exact name of registrant as specified in its charter)


                              DELAWARE 16-1213679
                (State or other jurisdiction of (I.R.S. Employer
               incorporation or organization) Identification No.)


                5790 Widewaters Parkway, DeWitt, New York 13214
              (Address of principal executive offices) (Zip Code)


                                  315/445-2282
              (Registrant's telephone number, including area code)



Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such shorter  periods that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. Yes X No

Indicate the number of shares  outstanding  of each of the  issuer's  classes of
common stock, as of the latest practical date.

Common Stock, No par value - 7,104,929 shares outstanding as of November 3, 1999



                                       1



                                         INDEX
                       COMMUNITY BANK SYSTEM, INC. AND SUBSIDIARIES


Part I.  Information

    Item 1. Financial Statements (Unaudited)

              Consolidated balance sheets --
              September 30, 1999, December 31, 1998 and September 30, 1998

              Consolidated  statements  of  income -- Three  months  ended
              September  30, 1999 and 1998 and nine months ended  September 30,
              1999 and 1998

              Consolidated statements of cash flows --
              Nine months ended September 30, 1999,  and 1998

              Consolidated statements of comprehensive income --
              Nine months ended September 30, 1999 and 1998


    Item 2. Management's   Discussion  and  Analysis  of  Financial
            Conditions and Results of Operations


Part II.   Other Information

    Item 1. Legal Proceedings

    Item 2. Changes in Securities

    Item 3. Defaults upon Senior Securities

    Item 4. Submission of Matters to a Vote of Securities Holders

    Item 5. Other Information

    Item 6. Exhibits and Reports on Form 8-K
              None



                                       2


COMMUNITY BANK SYSTEM, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CONDITION


                                                                    September 30,      December 31,      September 30,
                                                                             1999              1998               1998
- ----------------------------------------------------------------------------------------------------------------------
                                                                                                  
ASSETS
  Cash and due from banks                                             $65,091,886       $78,893,438        $57,081,062
  Federal funds sold                                                            0                 0                  0
- ----------------------------------------------------------------------------------------------------------------------
                                TOTAL CASH AND CASH EQUIVALENTS        65,091,886        78,893,438         57,081,062

  Investment securities
    U.S. Treasury                                                       2,998,612         2,994,897          2,994,070
    U.S. Government agencies and corporations                         172,245,313       167,469,638        187,224,026
    States and political subdivisions                                 116,938,713        44,628,567         38,679,080
    Mortgage-backed securities                                        288,510,826       336,090,432        333,253,723
    Federal Reserve Bank                                                2,173,950         2,173,950          2,173,950
    Other securities                                                   59,856,087        32,936,733         26,847,678
      Investment securities at cost                                   642,723,501       586,294,217        591,172,527
    Market value adjustment on available for sale securities         (13,380,293)         7,245,550         10,952,652
- ----------------------------------------------------------------------------------------------------------------------
                                    TOTAL INVESTMENT SECURITIES       629,343,208       593,539,767        602,125,179

  Loans                                                               983,509,902       918,527,226        910,973,997
    Less: Unearned discount                                               836,869         1,307,106          1,525,582
          Reserve for possible loan losses                             12,922,448        12,441,255         12,441,255
- ----------------------------------------------------------------------------------------------------------------------
                                                      NET LOANS       969,750,585       904,778,865        897,007,160

  Bank premises and equipment                                          25,326,018        24,877,782         24,695,272
  Accrued interest receivable                                          14,040,688        12,375,334         12,859,935
  Intangible assets                                                    51,188,821        54,438,219         55,183,219
  Other assets                                                         19,426,697        11,785,296         10,405,536
- ----------------------------------------------------------------------------------------------------------------------
                                                   TOTAL ASSETS    $1,774,167,903    $1,680,688,701     $1,659,357,363
======================================================================================================================
LIABILITIES AND SHAREHOLDERS' EQUITY
Liabilities:
  Deposits
    Noninterest bearing                                              $235,931,666      $249,863,649       $217,916,933
    Interest bearing                                                1,136,069,588     1,128,201,929      1,184,988,007
- ----------------------------------------------------------------------------------------------------------------------
                                                 TOTAL DEPOSITS     1,372,001,254     1,378,065,578      1,402,904,940
- ----------------------------------------------------------------------------------------------------------------------
  Federal funds purchased                                              19,400,000        34,700,000          2,000,000
  Term borrowings                                                     220,000,000       100,000,000         80,000,000
  Company obligated mandatorily redeemable preferred securities
    of subsidiary, Community Capital Trust I holding solely junior
    subordinated debentures of the Company                             29,815,500        29,810,438         29,808,750
    Accrued interest and other liabilities                             21,303,212        17,947,217         17,046,269
- ----------------------------------------------------------------------------------------------------------------------
                                              TOTAL LIABILITIES     1,662,519,966     1,560,523,233      1,531,759,959
- ----------------------------------------------------------------------------------------------------------------------
Shareholders' equity:
    Common stock (7,141,429; 7,296,453; 7,557,391                       7,640,029         7,623,053          7,622,291
     shares outstanding)
    Surplus                                                            33,254,071        32,842,772         32,833,532
    Undivided profits                                                  92,117,129        84,591,247         82,497,354
    Accumulated other comprehensive income                            (7,914,444)         4,285,743          6,478,493
    Treasury stock (498,600; 326,600; 64,900 shares)                 (13,431,869)       (9,151,956)        (1,791,618)
    Shares issued under employee stock plan - unearned                   (16,979)          (25,391)           (42,648)
- ----------------------------------------------------------------------------------------------------------------------
                                     TOTAL SHAREHOLDERS' EQUITY       111,647,937       120,165,468        127,597,404
- ----------------------------------------------------------------------------------------------------------------------
                     TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY    $1,774,167,903    $1,680,688,701     $1,659,357,363
======================================================================================================================

See notes to consolidated financial statements



                                       3


COMMUNITY BANK SYSTEM, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME


                                                                  Three Months Ended            Nine Months Ended
                                                                    September 30,                 September 30,
                                                                  1999          1998           1999           1998
- ------------------------------------------------------------------------------------------------------------------------
                                                                                                
Interest Income:
 Interest and fees on loans                                     $21,437,547   $21,164,790    $62,308,068    $61,551,640
 Interest and dividends on investments:
   U.S. Treasury                                                     67,630        67,338        202,839        201,455
   U.S. Government agencies and corporations                      3,073,221     4,084,379      9,127,545     12,969,949
   States and political subdivisions                              1,431,908       459,370      3,548,344      1,104,110
   Mortgage-backed securities                                     4,701,497     4,921,719     12,953,255     15,772,155
   Other securities                                               1,040,067       478,871      2,480,103      1,519,832
 Interest on federal funds sold                                           0       111,768          3,681        276,298
 Interest on deposits at other banks                                    457           467          1,542          1,462
- ------------------------------------------------------------------------------------------------------------------------
                                       Total interest income     31,752,327    31,288,702     90,625,377     93,396,901
- ------------------------------------------------------------------------------------------------------------------------

Interest expense:
 Interest on deposits
   Savings                                                        2,805,526     3,060,212      8,393,354      9,376,800
   Time                                                           7,800,575     9,633,466     23,590,750     28,686,287
 Interest on federal funds purchased and
   term borrowings                                                2,859,363     1,349,012      6,497,460      4,531,357
 Interest on mandatorily redeemable capital
   securities of subsidiary                                         732,938       732,938      2,198,813      2,198,813
- ------------------------------------------------------------------------------------------------------------------------
                                      Total interest expense     14,198,402    14,775,628     40,680,377     44,793,257
- ------------------------------------------------------------------------------------------------------------------------
                                         Net interest income     17,553,925    16,513,074     49,945,000     48,603,644
Less:  Provision for possible loan losses                         1,099,178     1,176,560      3,689,140      3,850,638
- ------------------------------------------------------------------------------------------------------------------------
         Net Interest income after provision for loan losses     16,454,747    15,336,514     46,255,860     44,753,006
- ------------------------------------------------------------------------------------------------------------------------

Other income:
 Fiduciary and investment services                                  535,356       461,804      1,786,192      1,407,096
 Service charges on deposit accounts                              1,889,621     1,848,686      5,205,664      4,874,648
 Commissions on investment products                                 237,008       311,259        861,293        909,688
 Other service charges, commissions and fees                      1,838,951     1,342,208      4,087,740      3,391,740
 Miscellaneous income                                                20,107       101,937        286,683        583,005
 Investment security gains (losses)                               (498,990)       132,331      (222,348)      1,397,859
- ------------------------------------------------------------------------------------------------------------------------
                                          Total other income      4,022,053     4,198,225     12,005,224     12,564,036
- ------------------------------------------------------------------------------------------------------------------------

Other expenses:
 Salaries and employee benefits                                   6,655,947     6,357,263     19,734,494     19,343,180
 Occupancy expense, net                                             937,947     1,041,066      2,982,896      3,115,793
 Equipment and furniture expense                                    778,568       992,138      2,577,291      2,608,620
 Amortization of intangible assets                                1,152,563     1,156,859      3,465,998      3,488,536
 Other                                                            3,740,429     3,440,803     10,911,859     10,261,926
- ------------------------------------------------------------------------------------------------------------------------
                                        Total other expenses     13,265,454    12,988,129     39,672,538     38,818,055
- ------------------------------------------------------------------------------------------------------------------------

Income before income taxes and extraordinary item                 7,211,346     6,546,610     18,588,546     18,498,987
Income taxes                                                      2,309,064     2,374,083      5,949,768      6,736,701
- ------------------------------------------------------------------------------------------------------------------------
                            Income before extraordinary item      4,902,282     4,172,527     12,638,778     11,762,286
Cumulative effect of adopting FAS 133, net of taxes                       0       193,859              0        193,859
- ------------------------------------------------------------------------------------------------------------------------
                                                  NET INCOME     $4,902,282    $4,366,386    $12,638,778    $11,956,145
========================================================================================================================
                                  Earnings per share - Basic          $0.69         $0.57          $1.75          $1.57
                                                   - Diluted          $0.68         $0.56          $1.73          $1.54
========================================================================================================================
See notes to consolidated financial statements



                                       4


COMMUNITY BANK SYSTEM, INC.
CONSOLIDATED STATEMENT OF CASH FLOWS
For Nine Months Ended September 30, 1999 and 1998


                                                                                           1999                1998
- -------------------------------------------------------------------------------------------------------------------
                                                                                             
Operating Activities:
 Net income                                                                         $12,638,778         $11,956,145
 Adjustments to reconcile net income to net cash
  provided by operating activities:
   Depreciation                                                                       2,192,378           2,084,204
   Amortization of intangible assets                                                  3,465,998           3,488,536
   Net amortization of security premiums and discounts                                3,462,248           4,502,473
   Amortization of discount on loans                                                  (470,237)                  0
   Provision for loan losses                                                          3,689,140           3,850,638
   Provision for deferred taxes                                                       2,836,389             373,378
   (Gain)\loss on sale of investment securities                                         222,348         (1,397,859)
   (Gain)\loss on sale of loans and other assets                                      (192,329)           (267,262)
   Change in interest receivable                                                    (1,665,354)            532,883
   Change in other assets and other liabilities                                       1,449,636           1,559,877
   Change in unearned loan fees and costs                                             (992,999)         (1,129,105)
- -------------------------------------------------------------------------------------------------------------------
   Net cash provided by operating activities                                         26,635,996          25,553,908
- -------------------------------------------------------------------------------------------------------------------

Investing Activities:
 Proceeds from sales of investment securities                                        10,003,654          68,334,830
 Proceeds from maturities of held to maturity investment securities                   2,160,894          49,116,687
 Proceeds from maturities of available for sale investment securities               143,357,875          55,553,922
 Purchases of held to maturity investment securities                                (2,968,688)         (7,021,469)
 Purchases of available for sale investment securities                            (212,667,616)       (153,079,155)
 Net change in loans outstanding                                                   (66,969,193)        (68,760,903)
 Capital expenditures                                                               (2,700,055)         (3,052,680)
 Proceeds from sales of property and equipment                                           23,339                   0
 Other investing activities                                                           (216,600)                   0
- -------------------------------------------------------------------------------------------------------------------
  Net cash used by investing activities                                           (129,976,390)        (58,908,768)
- -------------------------------------------------------------------------------------------------------------------

Financing Activities:
 Net change in demand deposits, NOW accounts, and savings accounts                  (7,563,501)          42,812,882
 Net change in certificates of deposit                                                1,499,177          14,406,100
 Net change in federal funds purchased                                             (15,300,000)        (43,000,000)
 Net change in term borrowings                                                      120,000,000                   0
 Issuance (retirement) of common and preferred stock                                    187,928             464,449
 Treasury stock purchased                                                           (4,279,913)         (1,791,618)
 Cash dividends                                                                     (5,004,849)         (4,562,294)
- -------------------------------------------------------------------------------------------------------------------
  Net cash provided by financing activities                                          89,538,842           8,329,519
- -------------------------------------------------------------------------------------------------------------------

Change in cash and cash equivalents                                                (13,801,552)        (25,025,342)
 Cash and cash equivalents at beginning of year                                      78,893,438          82,106,403
- -------------------------------------------------------------------------------------------------------------------
CASH AND CASH EQUIVALENTS AT END OF PERIOD                                           65,091,886          57,081,062
===================================================================================================================

SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest                                                              $40,252,379         $41,977,506
===================================================================================================================
Cash paid for income taxes                                                           $3,113,379          $7,011,612
===================================================================================================================

SUPPLEMENTAL DISCLOSURE OF NONCASH FINANCING
AND INVESTING ACTIVITIES:
Dividends declared and unpaid                                                        $1,786,232          $1,749,286
Gross change in unrealized gains and (losses) on
 available-for-sale securities                                                    ($20,625,844)          $6,254,573
===================================================================================================================

The accompanying notes are an integral part of the
consolidated financial statements.



                                       5



COMMUNITY BANK SYSTEM, INC.
CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME
For Nine Months Ended September 30, 1999 and 1998



                                                                         1999           1998
- ---------------------------------------------------------------------------------------------
                                                                          
Other comprehensive income (loss), before tax:
 Unrealized gains on securities:
  Change in unrealized holding gains (losses)  arising
   during period                                               $ (20,848,192)   $  7,652,432
  Less:  Reclassification adjustment for gains included in
         net income                                                   222,348    (1,397,859)
- ---------------------------------------------------------------------------------------------
Other comprehensive income (loss), before tax                    (20,625,844)      6,254,573
Income tax benefit related to items of other comprehensive          8,425,657    (2,554,993)
income
- ---------------------------------------------------------------------------------------------
Other comprehensive income (loss), net of tax                    (12,200,187)      3,699,580

Plus:  Net income                                                  12,638,778     11,956,145
- ---------------------------------------------------------------------------------------------

Comprehensive income
                                                               $      438,591   $ 15,655,725
=============================================================================================

See notes to consolidated financial statements



                                       6


                       Community Bank System, Inc. and Subsidiaries
                        Notes to Consolidated Financial Statements

                                        (Unaudited)

                                    September 30, 1999

Note A -- Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been
prepared in accordance with generally accepted accounting principles for interim
financial  information  and with  instructions  to Form  10-Q and Rule  10-01 of
Regulation  S-X.  Accordingly,  they do not include all of the  information  and
footnotes  required by generally  accepted  accounting  principles  for complete
financial statements. In the opinion of management,  all adjustments (consisting
of normal recurring  accruals)  considered  necessary for fair presentation have
been included.  Operating  results for the nine month period ended September 30,
1999 are not necessarily  indicative of the results that may be expected for the
year ended December 31, 1999.

On  January  29,  1997,   Community  Bank  System,   Inc.  ("Company"),formed  a
wholly-owned  subsidiary,  Community  Capital  Trust  I  ("Trust"),  a  Delaware
statutory business trust. The Trust has issued $30 million aggregate liquidation
amount of 9.75%  Company-Obligated  Mandatorily  Redeemable Preferred Securities
representing  undivided  beneficial  interests  in the assets of the Trust.  The
Company  borrowed the  proceeds of the  Preferred  Securities  from the Trust by
issuing Junior Subordinated Debentures to the Trust having substantially similar
terms as the Preferred Securities. The sole assets of the Trust on September 30,
1999  were  $31,246,080  aggregate  principal  amount  of the  Company's  Junior
Subordinated  Debentures,  together with the related accrued interest receivable
thereon.  The  Preferred  Securities  mature in 2027,  and are treated as Tier 1
capital by the Federal  Reserve Bank of New York. The  guarantees  issued by the
Company for the Trust,  together with the Company's  obligations under the Trust
Agreement,  the Junior Subordinated Debentures and the Indenture under which the
Junior Subordinated Debentures were issued,  constitute a full and unconditional
guarantee by the Company of the Preferred Securities issued by the Trust.

Effective January 1, 1998, the Company adopted Statement of Financial Accounting
Standards No. 130, "Reporting Comprehensive Income." This pronouncement requires
the  Company to report the effects of  unrealized  investment  holding  gains or
losses on  comprehensive  income as displayed in the Statement of  Comprehensive
Income.

Effective July 1, 1998, the Company  adopted  Statement of Financial  Accounting
Standards  No.  133,   "Accounting   for  Derivative   Instruments  and  Hedging
Activities."   The   Company   elected  to   reclassify   $212,735,000   of  its
held-to-maturity securities as available-for-sale upon adoption of FAS 133.


                                       7


Note B -- Earnings Per Share

Basic  earnings  per share is  computed  based on the  weighted  average  shares
outstanding.  Diluted  earnings  per  share is  computed  based on the  weighted
average  shares  outstanding  adjusted  for the  dilutive  effect of the assumed
exercise of stock options during the year. The following is a reconciliation  of
basic to  diluted  earnings  per  share  for the  three  and nine  months  ended
September 30, 1999 and 1998:

- -------------------------------------------------------------------------------
For nine months ended                Income     Shares             Per share
September 30, 1999                                                  amount
- -------------------------------------------------------------------------------

     Net Income                  12,638,778

     Basic EPS                   12,638,778  7,215,683               $    1.75


Effect of diluted securities:
       Stock options                      0     87,493
                                -----------------------
        DILUTED EPS             $12,638,778  7,303,176                 $  1.73
===============================================================================

- -------------------------------------------------------------------------------
For nine months ended                Income     Shares             Per share
September 30, 1998                                                  amount
- -------------------------------------------------------------------------------

     Net Income                  11,956,145


     Basic EPS                   11,956,145  7,610,264               $    1.57


Effect of diluted securities:
       Stock options                      0    131,348
                                -----------------------
               DILUTED EPS      $11,956,145  7,741,612                 $  1.54
===============================================================================

- -------------------------------------------------------------------------------
For three months ended               Income     Shares             Per share
September 30, 1999                                                  amount
- -------------------------------------------------------------------------------

     Net Income                   4,902,282


     Basic EPS                    4,902,282  7,144,248               $    0.69


Effect of diluted securities:
       Stock options                      0     85,191
                                -----------------------
               DILUTED EPS       $4,902,282  7,229,439                 $  0.68
===============================================================================

- -------------------------------------------------------------------------------
For three months ended               Income     Shares             Per share
September 30, 1998                                                  amount
- -------------------------------------------------------------------------------

     Net Income                   4,366,386


     Basic EPS                    4,366,386  7,616,519               $    0.57


Effect of diluted securities:
       Stock options                      0    138,041
                                -----------------------
               DILUTED EPS       $4,366,386  7,754,560                 $  0.56
===============================================================================



                                       8



Part 1.  Financial Information

Item 1. Financial Statements

The  information  required by rule 10.01 of  Regulation  S-X is presented on the
previous pages.

Item 2.  Management's  Discussion  and  Analysis of Financial  Condition  and of
Operations

The purpose of the discussion is to present  material  changes in Community Bank
System,  Inc.'s  financial  condition and results of operations  during the nine
months  ended  September  30,  1999 which are not  otherwise  apparent  from the
consolidated  financial statements included in these reports.  When used in this
report,  the term "CBSI" means Community Bank System,  Inc. and its subsidiaries
on a consolidated  basis,  unless  indicated  otherwise.  Financial  performance
comparisons  to peer bank holding  companies  are based on data through June 30,
1999 as provided by the Federal Reserve  System;  the peer group is comprised of
156 bank holding companies having $1 to $3 billion in assets.

Forward-Looking Statements

This document contains  comments or information that constitute  forward-looking
statements (within the meaning of the Private  Securities  Litigation Reform Act
of 1995), which involve significant risks and uncertainties.  Actual results may
differ materially from the results discussed in the forward-looking  statements.
Moreover,  the Company's plans,  objectives and intentions are subject to change
based on  various  factors  (some of which are beyond  the  Company's  control).
Factors  that could cause actual  results to differ from those  discussed in the
forward-looking  statements  include:  (1)  risks  related  to  credit  quality,
interest rate sensitivity and liquidity; (2) the strength of the U.S. economy in
general and the strength of the local economies  where the Company  conducts its
business;  (3) the effect of, and changes in,  monetary and fiscal  policies and
laws,  including interest rate policies of the Board of Governors of the Federal
Reserve System; (4) inflation,  interest rate, market and monetary fluctuations;
(5) the timely development of new products and services and customer  perception
of the overall value thereof (including features,  pricing and quality) compared
to competing products and services; (6) changes in consumer spending,  borrowing
and savings habits; (7) technological  changes;  (8) any acquisitions or mergers
that might be  considered  by the Company  and the costs and factors  associated
therewith;  (9) the ability to maintain  and  increase  market share and control
expenses; (10) the effect of changes in laws and regulations (including laws and
regulations  concerning taxes, banking,  securities and insurance) and generally
accepted  accounting  principles;  (11) changes in the  Company's  organization,
compensation  and benefit  plans and in the  availability  of, and  compensation
levels for, employees in its geographic  markets;  (12) the costs and effects of
litigation and of any adverse outcome in such  litigation;  and (13) the success
of the Company at managing the risks of the foregoing.

The foregoing list of important factors is not exclusive.  Such  forward-looking
statements speak only as of the date on which they are made and the Company does
not undertake any obligation to update any  forward-looking  statement,  whether
written or oral, to reflect events or circumstances after the date on which such
statement  is  made.  If  the  Company  does  update  or  correct  one  or  more
forward-looking  statements,  investors  and others should not conclude that the
Company will make additional updates or corrections with respect thereto or with
respect to other forward-looking statements.




                                       9



                                             COMMUNITY BANK SYSTEM, INC.
                                                SUMMARY OF OPERATIONS
                                          EARNINGS AND BALANCE SHEET RECAP
                                     3RD QUARTER 1999 AND FULL YEAR COMPARISONS






000s Omitted                                          Three Months Ended September 30,

  Line                                                                   Change     Change
  No.    Earnings                                 1999         1998      Amount    Percent
  ---------------                                 ----------------------------------------


                                                                          
   1     Net interest income                   $17,554      $16,513      $1,041       6.3%

   2     Loan loss provision                     1,099        1,177        (78)      -6.6%

   3     Net interest income
         after provision for
         loan losses                            16,455       15,336       1,119       7.3%

   4     Investment security
         gain (loss)                              (499)         132       (631)        ---

   5     Other income                            4,521        4,066         455      11.2%

   6     Other expense                          12,113       11,831         282       2.4%

   7     Intangible amortization                 1,153        1,157         (4)      -0.3%

   8a    Inc before inc tax and                  7,211        6,546         665      10.2%
              extraordinary items
   8b    FAS 133 net of income taxes                 0          194       (194)    -100.0%

   9     Income tax                              2,309        2,374        (65)      -2.7%

   10    Net income                             $4,902       $4,366        $536      12.3%

         Earnings per share
  11a    Basic                                   $0.69        $0.57       $0.12      21.1%
  11b    Diluted                                 $0.68        $0.56       $0.12      21.4%
                                         ===================================================

         Balances At Period End
         ----------------------
   12    Loans                                $982,673     $909,448     $73,225       8.1%

   13    Investments (excl mkt val adj,
           incl money mkt inv)                 643,054      591,208      51,846       8.8%

   14    Earning assets                      1,625,727    1,500,656     125,071       8.3%

   15    Loan loss reserve                      12,922       12,441         481       3.9%

   16    Intangible assets                      51,189       55,183     (3,994)      -7.2%

   17    Total assets                        1,774,168    1,659,357     114,811       6.9%

   18    Deposits                            1,372,001    1,402,905    (30,904)      -2.2%

   19    Borrowings                            269,216      111,809     157,407     140.8%

   20    Total equity                         $111,648     $127,597   ($15,949)     -12.5%




                                       10a





000s Omitted                                          Nine Months Ended September 30,

  Line                                                                   Change     Change
  No.    Earnings                                 1999         1998      Amount    Percent
  ---------------                                 ----------------------------------------


                                                                          
   1     Net interest income                   $49,945      $48,604      $1,341       2.8%

   2     Loan loss provision                     3,689        3,851       (162)      -4.2%

   3     Net interest income                    46,256       44,753       1,503       3.4%
         after provision for
         loan losses

   4     Investment security                     (222)        1,398     (1,620)        ---
         gain (loss)

   5     Other income                           12,227       11,166       1,061       9.5%

   6     Other expense                          36,206       35,329         877       2.5%

   7     Intangible amortization                 3,466        3,489        (23)      -0.7%

   8a    Inc before inc tax and                 18,589       18,499          90       0.5%
              extraordinary items
   8b    FAS 133 net of income taxes                 0          194       (194)    -100.0%

   9     Income tax                              5,950        6,737       (787)     -11.7%

   10    Net income                            $12,639      $11,956        $683       5.7%

         Earnings per share
  11a    Basic                                   $1.75        $1.57       $0.18      11.5%
  11b    Diluted                                 $1.73        $1.54       $0.19      12.3%
                                        ===================================================

         Balances At Period End
         ----------------------
   12    Loans                                $982,673     $909,448     $73,225       8.1%

   13    Investments (excl mkt val adj,
           incl money mkt inv)                 643,054      591,208      51,846       8.8%

   14    Earning assets                      1,625,727    1,500,656     125,071       8.3%

   15    Loan loss reserve                      12,922       12,441         481       3.9%

   16    Intangible assets                      51,189       55,183     (3,994)      -7.2%

   17    Total assets                        1,774,168    1,659,357     114,811       6.9%

   18    Deposits                            1,372,001    1,402,905    (30,904)      -2.2%

   19    Borrowings                            269,216      111,809     157,407     140.8%

   20    Total equity                         $111,648     $127,597   ($15,949)     -12.5%


                                       10b




000s Omitted                                          Three Months Ended



  Line                                         Sep 30,      Jun 30,      Change     Change
  No.    Earnings                                 1999         1999      Amount    Percent
  ---------------                              -------------------------------------------


                                                                          
   1     Net interest income                   $17,554      $16,519      $1,035       6.3%

   2     Loan loss provision                     1,099        1,421       (322)     -22.7%

   3     Net interest income
         after provision for
         loan losses                            16,455       15,098       1,357       9.0%

   4     Investment security
         gain (loss)                              (499)           0       (499)        ---

   5     Other income                            4,521        3,880         641      16.5%

   6     Other expense                          12,113       12,033          80       0.7%

   7     Intangible amortization                 1,153        1,155         (2)      -0.2%

   8a    Inc before inc tax and                  7,211        5,790       1,421      24.5%
              extraordinary items
   8b    FAS 133 net of income taxes                 0            0           0       0.0%

   9     Income tax                              2,309        1,742         567      32.6%

   10    Net income                             $4,902       $4,048        $854      21.1%

         Earnings per share
  11a    Basic                                   $0.69        $0.56       $0.13      23.2%
  11b    Diluted                                 $0.68        $0.55       $0.13      23.6%
                                        ==================================================


         Balances At Period End
         ----------------------
   12    Loans                                $982,673     $942,380     $40,293       4.3%

   13    Investments (excl mkt val adj,        643,054      639,734       3,320       0.5%
           incl money mkt inv)

   14    Earning assets                      1,625,727    1,582,114      43,613       2.8%

   15    Loan loss reserve                      12,922       13,055       (133)      -1.0%

   16    Intangible assets                      51,189       52,299     (1,110)      -2.1%

   17    Total assets                        1,774,168    1,748,666      25,502       1.5%

   18    Deposits                            1,372,001    1,379,290     (7,289)      -0.5%

   19    Borrowings                            269,216      237,014      32,202      13.6%

   20    Total equity                         $111,648     $113,294    ($1,646)      -1.5%





                                       10c



                                             COMMUNITY BANK SYSTEM, INC.
                                                SUMMARY OF OPERATIONS
                                          EARNINGS AND BALANCE SHEET RECAP
                                     3RD QUARTER 1999 AND FULL YEAR COMPARISONS




000s Omitted                                          Three Months Ended September 30,

  Line                                                                   Change     Change
  No.    Profitability                            1999         1998      Amount    Percent
  --------------------                            ----------------------------------------

                                                                  
   21    Return on assets                        1.12%      1.03%     0.09 %pts.---
   22    Return on equity                       17.17%     14.08%     3.09 %pts.---

   23    Cash EPS (diluted)                      $0.77      $0.65    $0.12           18.5%
   24    Tangible return on                      1.27%      1.19%     0.08 %pts.---
         assets
   25    Tangible return on                     19.56%     16.28%     3.28 %pts.---
         equity

   26    Net interest margin                     4.49%      4.34%     0.15 %pts.---

   27    Non interest income/                    19.9%      19.6%      0.4 %pts.---
         operating income (excl sec gains)

   28    Efficiency ratio                        52.6%      56.9%    (4.3) %pts.---
         (excl one time items and
         intangible amortization)

         Capital
         -------
   29    Tier I leverage ratio                   5.79%      5.92%   (0.13) %pts.---

         Common shares
  30a    Weighted average                        7,248      7,756    (508)           -6.6%
  30b    Period end                              7,141      7,557    (416)           -5.5%

   31    Cash dividends declared                 $0.25      $0.23    $0.02            8.7%
         per common share

   32    Common stock price                     $27.38     $28.69  ($1.32)           -4.6%

  33a    Book value                             $15.63     $16.88  ($1.25)           -7.4%
  33b    Tangible book value                     $8.55      $9.58  ($1.03)          -10.8%

         Asset Quality Ratios
         --------------------
   34    Loan loss reserve /
         loans outstanding                       1.32%      1.37%   (0.05) %pts.---

   35    Nonperforming loans /
         loans outstanding                       0.42%      0.48%   (0.06) %pts.---

   36    Loan loss reserve /
         nonperforming loans                      316%       286%       30 %pts.---

   37    Net charge-offs /
         average loans                           0.51%      0.52%   (0.01) %pts.---

   38    Loan loss provision /
         net charge-offs                           89%       100%     (11) %pts.---

   39    Nonperforming assets /
         loans outstanding+OREO                  0.48%      0.62%   (0.14) %pts.---



                                       11a





000s Omitted                                          Nine Months Ended September 30,

  Line                                                                   Change     Change
  No.    Profitability                            1999         1998      Amount    Percent
  --------------------                            ----------------------------------------

                                                                  
   21    Return on assets                        0.99%      0.95%     0.04 %pts. ---
   22    Return on equity                       14.36%     13.24%     1.12 %pts. ---

   23    Cash EPS (diluted)                      $2.01      $1.81    $0.20           11.0%
   24    Tangible return on                      1.15%      1.12%     0.03 %pts. ---
         assets
   25    Tangible return on                     16.69%     15.52%     1.17 %pts. ---
         equity

   26    Net interest margin                     4.45%      4.33%     0.12 %pts. ---

   27    Non interest income/                    19.2%      18.6%      0.6 %pts. ---
         operating income (excl sec gains)

   28    Efficiency ratio                        56.0%      58.6%    (2.6) %pts. ---
         (excl one time items and )
         intangible amortization)

         Capital
         -------
   29    Tier I leverage ratio                   5.79%      5.92%   (0.13) %pts. ---

         Common shares
  30a    Weighted average                        7,321      7,742    (421)           -5.4%
  30b    Period end                              7,141      7,557    (416)           -5.5%

   31    Cash dividends declared                 $0.71      $0.63    $0.08           12.7%
         per common share

   32    Common stock price                     $27.38     $28.69  ($1.32)           -4.6%

  33a    Book value                             $15.63     $16.88  ($1.25)           -7.4%
  33b    Tangible book value                     $8.55      $9.58  ($1.03)          -10.8%

         Asset Quality Ratios
         --------------------
   34    Loan loss reserve /
         loans outstanding                       1.32%      1.37%   (0.05)%pts. ---

   35    Nonperforming loans /
         loans outstanding                       0.42%      0.48%   (0.06)%pts. ---

   36    Loan loss reserve /
         nonperforming loans                      316%       286%       30 %pts. ---

   37    Net charge-offs /
         average loans                           0.46%      0.59%   (0.13)%pts. ---

   38    Loan loss provision /
         net charge-offs                          115%       100%       15 %pts. ---

   39    Nonperforming assets /
         loans outstanding+OREO                  0.48%      0.62%   (0.14)%pts. ---


                                       11b






000s Omitted                                          Three Months Ended,

  Line                                         Sep 30,      Jun 30,      Change     Change
  No.    Profitability                            1999         1999      Amount    Percent
  --------------------                          ------------------------------------------

                                                                     
   21    Return on assets                        1.12%      0.96%     0.16 %pts. ---
   22    Return on equity                       17.17%     13.66%     3.51 %pts. ---

   23    Cash EPS (diluted)                      $0.77      $0.65    $0.12           18.5%
   24    Tangible return on                      1.27%      1.12%     0.15 %pts. ---
         assets
   25    Tangible return on                     19.56%     15.96%     3.60 %pts. ---
         equity

   26    Net interest margin                     4.49%      4.48%     0.01 %pts. ---

   27    Non interest income/                    19.9%      18.5%      1.4 %pts. ---
         operating income (excl sec gains)

   28    Efficiency ratio                        52.6%      57.6%    (5.0) %pts. ---
         (excl one time items and )
         intangible amortization)

         Capital

   29    Tier I leverage ratio                   5.79%      5.71%     0.08 %pts. ---

         Common shares
  30a    Weighted average                        7,248      7,322     (74)           -1.0%
  30b    Period end                              7,141      7,144      (3)            0.0%

   31    Cash dividends declared                 $0.25      $0.23    $0.02            8.7%
         per common share

   32    Common stock price                     $27.38     $25.38    $2.00            7.9%

  33a    Book value                             $15.63     $15.86  ($0.23)           -1.4%
  33b    Tangible book value                     $8.55      $8.54    $0.01            0.1%

         Asset Quality Ratios

   34    Loan loss reserve /
         loans outstanding                       1.32%      1.39%   (0.07) %pts. ---

   35    Nonperforming loans /
         loans outstanding                       0.42%      0.50%   (0.08) %pts. ---

   36    Loan loss reserve /
         nonperforming loans                      316%       278%       38 %pts. ---

   37    Net charge-offs /
         average loans                           0.51%      0.41%     0.10 %pts. ---

   38    Loan loss provision /
         net charge-offs                           89%       148%     (59) %pts. ---

   39    Nonperforming assets /
         loans outstanding+OREO                  0.48%      0.60%   (0.12) %pts. ---




                                       11c



                                             COMMUNITY BANK SYSTEM, INC.
                                                SUMMARY OF OPERATIONS
                                          EARNINGS AND BALANCE SHEET RECAP
                                     3RD QUARTER 1999 AND FULL YEAR COMPARISONS


000s Omitted



                                                      Three Months Ended September 30,

  Line                                                                   Change     Change
  No.    Asset Quality Components                 1999         1998      Amount    Percent
                                                 -----------------------------------------

                                                                     
   40    Nonaccruing loans                      $3,257       $2,726        $531      19.5%

   41    90+ days delinquent                       836        1,629        -793     -48.7%
   42    Tot nonperforming loans                $4,093       $4,355       -$262      -6.0%

   43    Troubled debt                             119          138         -19     -13.8%
         restructurings

   44    Other real estate                         501        1,248        -747     -59.9%
   45    Tot nonperforming assets               $4,713       $5,741    ($1,028)     -17.9%

         Components of Net Interest Margin

   46    Loan yield                              8.85%        9.34%      (0.49) %pts. ---
   47    Investment yield                        6.74%        6.53%        0.21 %pts. ---

   48    Earning asset yield                     8.00%        8.18%      (0.18) %pts. ---

   49    Interest bearing deposits rate          3.72%        4.21%      (0.49) %pts. ---
   50    Borrowed funds rate                     5.88%        6.73%      (0.85) %pts. ---

   51    Cost of all interest                    4.10%        4.44%      (0.34) %pts. ---
         bearing funds

   52    Cost of funds                           3.49%        3.81%      (0.32) %pts. ---
         (includes DDA)
   53    Cost of funds / earning                 3.51%        3.84%      (0.33) %pts. ---
         assets

   54    Net interest margin                     4.49%         4.34        0.15 %pts. ---

   55    Full tax equivalent adj.                 $614         $214        $400     186.9%


         Average Balances for Period

   56    Loans                                $960,860     $898,992     $61,868       6.9%

   57    Investments
         (excl. mkt val adj)                   643,622      629,083      14,539       2.3%

   58    Earning assets                      1,604,482    1,528,075      76,407       5.0%

   59    Total assets                        1,743,095    1,682,609      60,486       3.6%

   60    Deposits                            1,371,162    1,416,923    (45,761)      -3.2%

   61    Borrowings                            242,367      122,696     119,671      97.5%

   62    Total equity                         $113,266     $123,061    ($9,795)      -8.0%



                                       12a






                                                      Nine Months Ended September 30,

  Line                                                                   Change     Change
  No.    Asset Quality Components                 1999         1998      Amount    Percent
                                                 -----------------------------------------

                                                                     
   40    Nonaccruing loans                      $3,257       $2,726        $531      19.5%

   41    90+ days delinquent                       836        1,629        -793     -48.7%
   42    Tot nonperforming loans                $4,093       $4,355       -$262      -6.0%

   43    Troubled debt restructurings              119          138         -19     -13.8%
         restructurings

   44    Other real estate                         501        1,248        -747     -59.9%
   45    Tot nonperforming assets               $4,713       $5,741     -$1,028     -17.9%

         Components of Net Interest Margin

   46    Loan yield                              8.90%        9.40%      (0.50) %pts. ---
   47    Investment yield                        6.53%        6.75%      (0.22) %pts. ---

   48    Earning asset yield                     7.96%        8.27%      (0.31) %pts. ---

   49    Interest bearing deposits rate          3.76%        4.27%      (0.51) %pts. ---
   50    Borrowed funds rate                     6.01%        6.71%      (0.70) %pts. ---

   51    Cost of all interest                    4.09%        4.52%      (0.43) %pts. ---
         bearing funds

   52    Cost of funds                           3.47%        3.90%      (0.43) %pts. ---
         (includes DDA)
   53    Cost of funds / earning                 3.51%        3.95%      (0.43) %pts. ---
         assets

   54    Net interest margin                     4.45%        4.33%        0.12 %pts. ---

   55    Full tax equivalent adj.               $1,578         $516      $1,062     205.8%


         Average Balances for Period

   56    Loans                                $935,650     $875,455     $60,195       6.9%

   57    Investments
         (excl. mkt val adj)                   612,457      642,342    (29,885)      -4.7%

   58    Earning assets                      1,548,107    1,517,797      30,310       2.0%

   59    Total assets                        1,702,105    1,674,595      27,510       1.6%

   60    Deposits                            1,371,853    1,401,471    (29,618)      -2.1%

   61    Borrowings                            193,311      134,038      59,273      44.2%

   62    Total equity                         $117,687     $120,759    ($3,072)      -2.5%


                                       12b






                                                      Three Months Ended,

  Line                                         Sep 30,      Jun 30,      Change     Change
  No.    Asset Quality Components                 1999         1999      Amount    Percent
                                                 -----------------------------------------

                                                                          
   40    Nonaccruing loans                      $3,257       $3,515       -$258      -7.3%

   41    90+ days delinquent                       836        1,189        -353     -29.7%
   42    Tot nonperforming loans                $4,093       $4,704       -$611     -13.0%

   43    Troubled debt restructurings              119          123          -4      -3.3%
         restructurings

   44    Other real estate                         501          853        -352     -41.3%
   45    Tot nonperforming assets               $4,713       $5,680       -$967     -17.0%

         Components of Net Interest Margin

   46    Loan yield                              8.85%        8.90%      (0.05) %pts.---
   47    Investment yield                        6.74%        6.55%        0.19 %pts.---

   48    Earning asset yield                     8.00%        7.97%        0.03 %pts.---

   49    Interest bearing deposits rate          3.72%        3.76%      (0.04) %pts.---
   50    Borrowed funds rate                     5.88%        6.08%      (0.20) %pts.---

   51    Cost of all interest                    4.10%        4.07%        0.03 %pts.---
         bearing funds

   52    Cost of funds                           3.49%        3.45%        0.04 %pts.---
         (includes DDA)
   53    Cost of funds / earning                 3.51%        3.50%        0.01 %pts.---
         assets

   54    Net interest margin                     4.49%        4.48%        0.01 %pts.---

   55    Full tax equivalent adj                  $614         $575         $39       6.8%


         Average Balances for Period

   56    Loans                                $960,860     $929,770     $31,090       3.3%

   57    Investments
         (excl. mkt val adj)                   643,622      602,596      41,026       6.8%

   58    Earning assets                      1,604,482    1,532,366      72,116       4.7%

   59    Total assets                        1,743,095    1,693,361      49,734       2.9%

   60    Deposits                            1,371,162    1,377,975      -6,813      -0.5%

   61    Borrowings                            242,367      175,824      66,543      37.8%

   62    Total equity                         $113,266     $118,894     -$5,628      -4.7%




                                       12c



Earnings per share  (diluted) for third quarter 1999 reached $.68, a record high
for the  Company  and up 21% over the prior  year;  for the nine  month  period,
earnings  per share rose 12.3% to $1.73.  Net  income for the  quarter  and nine
months was $4.902 million and $12.639 million, up 12.3% and 5.7%,  respectively.
The greater  improvement  in earnings per share  reflects  fewer average  shares
outstanding as a result of the Company's  share  repurchase  program;  since its
inception  last fall,  498,600  shares or 6.5% of shares  outstanding  have been
bought  back.  Compared  to second  quarter  1999  results,  earnings  per share
(diluted) were higher by $.13 or 24% while net income was up $854,000 or 21%.

Cash earnings per share  (diluted)  for the quarter  increased to $.77, up 10.2%
compared to last year.  Cash or tangible return on assets (ROA) was 1.27% versus
nominal ROA at 1.12%.  And tangible  return on equity (ROE) for the quarter rose
3.28 percentage points over one year earlier to 19.56%, exceeding nominal ROE by
2.39  percentage  points for the same period.  The  difference  between cash and
nominal results reflects the  contribution of the Company's branch  acquisitions
on an economic  basis,  which  excludes the non-cash  impact of  amortizing  the
premiums paid for the acquisitions.

The Company's  record high results reflect a combination of continued  stability
in our net interest margin over the last six months at 4.49% this quarter (up 15
basis  points  from one year ago),  a second  consecutive  period of strong loan
growth from being  unchanged  during the first quarter (up 8.1% since  September
30, 1998), and greater contribution from the Bank's investment portfolio,  where
yields have improved and a full  three-months'  benefit was felt from  purchases
made during the April to June 1999 period (the  portfolio  being now 8.8% higher
than one year earlier).

Other important  performance  factors include increased  noninterest  income (up
11.2% from third quarter last year), careful management of overhead (up slightly
from  second  quarter  levels  but a modest  2.4%  increase  over four  quarters
earlier),  and  improved  tax  planning  (reflected  in a 4.5  percentage  point
reduction in the year-to-date effective tax rate). Nearly $500,000 in securities
losses was realized this quarter on sales of $5.9  million,  resulting in higher
net interest income in future periods; $132,000 in gains was recognized in third
quarter  1998 as part of managing  our  investment  portfolio  on a total return
basis in that interest rate environment.

An overriding  achievement of the quarter is that net interest  income (full tax
equivalent)  achieved the highest  level in our history,  exceeding its previous
record in fourth  quarter 1997.  Net interest  income has improved for the third
consecutive  period to $18.2  million from the 1998  quarterly low in the fourth
quarter of $16.0 million.  Even though fourth quarter 1997 margins were 30 basis
points higher than now, the current net interest  milestone  occurred because of
$175  million  more in  average  earning  assets.  Seventy  two  percent of that
increase  reflects loan growth despite Upstate New York's  generally  lackluster
economy.

Net  interest  income  in the  most  recent  quarter  also  benefited  from  the
restoration  of  yields  on  the  Company's  premium   collateralized   mortgage
obligations  (CMOs),  whose  performance  had been penalized since first quarter
1998 due to  historically  high  refinancing  activity  causing  unusually large
prepayments  on the  underlying  mortgages.  Funding of $76 million in growth in
average  earning assets over the last year has largely been a combination of $22
million more in personal and business  demand  deposits (up 10.9%) and growth in
capital  market  borrowings,  $61  million  of which  replaced  run-off of large
municipal deposits.

Third quarter  noninterest  income (excluding net securities  gains/losses) rose
11.2% from one year earlier to $4.5 million.  Over half of the increase  related
to  financial  services,  which  rose  by  $260,000.  The  two  primary  factors
explaining  that  improvement  are 22% more revenues from the Company's  EBT/BPA
business,  which provides  investment  management,  pension  administration  and
consulting  services,  and a 50%  increase  in the annual  dividend  the Company
receives from the sale of creditor life insurance  underwritten  by a subsidiary
of the New York  State  Bankers  Association.  The  balance of the  increase  in
noninterest   income  was  from  deposit  service   charges  and   miscellaneous
commissions, which rose over 13%.



                                       13



For  the  first  nine  months,  noninterest  income,  excluding  net  securities
gains/losses   and  one-time   events  related  to  the  disposition  of  branch
properties,  has risen by nearly $1.0  million or 8.9% over the same period last
year.  Financial  services,  which now comprises  37% of total fee income,  rose
12.8%;  specialty  products,  which  largely  includes  electronic  and mortgage
banking and servicing  activities,  climbed 32%, contributing 11% of fee income;
and general banking fees, making up 52% of noninterest  income,  increased 2.6%.
Noninterest income,  excluding transactions related to investment securities and
disposal of branch properties, as a percent of operating income rose to 19.2% in
the first nine months of 1999 compared to 18.6% one year earlier.

Loans rose over $40 million during the last three months to nearly $983 million,
the strongest  quarterly loan growth in the Company's  history (the last record,
excluding acquisitions, being in second quarter 1998), building on a $25 million
increase in the preceding  quarter.  During the last twelve  months,  loans have
grown by over $73 million or 8.1%;  in addition,  $43.8 million in mortgages has
been  originated  and sold in the secondary  market,  resulting in total managed
loan growth of 11.9%.  The largest share of growth in loans  outstanding  during
the third quarter was in commercial loans at $14.7 million, 16% greater than the
previous  quarter's  increase and well in excess of growth in the three quarters
prior to that.  Consumer direct loans (including home equity loans),  which last
quarter rose  modestly for the first time since the  Company's  mid-1997  branch
acquisitions,  increased an unusually large $13.2 million,  primarily due to the
successful "Summer Sizzler" promotion.  Next, extending the climb which began in
late March 1999, indirect consumer installment loans  (predominantly  automobile
financing)  increased  an  additional  $9.0  million,  over 50% more than second
quarter 1999's pick-up. Lastly, consumer mortgages were up a modest $3.4 million
in  response  to reduced  mortgage  activity  caused by rising  interest  rates.
Similarly,  origination and sale of mortgages in the secondary  market were $6.0
million for the quarter,  which  compares to $8.8 million in second quarter 1999
and $11.1 million in third quarter 1998.

Nonperforming  loans  ended  the  quarter  at $4.0  million  or  .42%  of  loans
outstanding,  down over $600,000 and .08%,  respectively,  during the last three
months and below  September  30, 1998  levels as well.  Based on the most recent
peer bank data as of June 30, 1999, when the Company's  nonperforming loan ratio
was .50%,  CBSI ranked in the favorable 36th  percentile.  With the exception of
last quarter,  nonperforming loans have been in the acceptable $4.0-$4.4 million
range for the last two years.

The ratio of loan loss  reserves  to loans  outstanding  decreased  seven  basis
points during the quarter to 1.32%,  but because of lower  nonperforming  loans,
coverage over nonperformers  improved to 316%, a level which management believes
to be adequate.  The ratio of delinquencies (30 days or more) and nonaccruals to
total loans  decreased  from the June 30, 1999 level to 1.35% at  September  30,
having  remained in the 1.30% to 1.50% band for the last eighteen  months,  well
within the Company's internal guideline of 2.0%.

Loan loss  provision  expense  decreased to $1.1 million for the third  quarter,
$78,000  below the same period last year and  $322,000  less than for the second
quarter of this year. This latter large decrease is due to the provision in that
period having anticipated  $275,000 in charge-offs in the current quarter on two
commercial customers. Actual charge-offs taken on those loans were $380,000. Net
charge-offs on installment loans continued to exhibit the improvements  achieved
since their peak in fourth quarter 1997,  down $1.0 million or 30% for the first
nine  months of 1999 versus  1998,  and as a  percentage  of  installment  loans
outstanding,  averaging  almost 45 basis points lower at 1.02%.  Net charge-offs
for the Company as a whole averaged .46% of loans outstanding  through September
30 versus  .59%  last  year.  The  year-to-date  provision  covered  actual  net
charge-offs  by 1.15 times,  this margin  having been  established  in 1999 as a
precaution  in the event the Upstate  New York  economy  weakens  after its long
sustained period of relative economic health.



                                       14



The Company's nine month efficiency  ratio  (recurring  overhead less intangible
amortization  compared to net interest plus recurring other income)  improved to
56.0% from 58.5% through  September 30 of last year.  This favorable  trend is a
function of several  factors:  an increase in net interest margin due to a lower
cost of funds and reduced premium  amortization on the Company's CMO securities,
growth in  earning  assets,  steady  progress  in  developing  more  sources  of
noninterest  income, and persistent  control of overhead expense.  For the first
nine  months  of this  year,  overhead  (before  intangible  amortization)  rose
$877,000 or 2.5% over the same 1998 period.  Excluding branch disposal  expenses
of $501,000  this year versus none in 1998 and $142,000 in losses on  fraudulent
customer transactions, overhead has risen .7%.



                                       15




Year 2000

The Year 2000 issue is the result of computer  programs  being written using two
digits rather than the four to define the applicable  year. Any of the Company's
computer programs that have  date-sensitive  software may recognize a date using
"00" as the year 1900 rather than the year 2000.  This could  result in a system
failure or miscalculations causing disruptions of operations,  including,  among
other things, a temporary inability to process  transactions or engage in normal
business  activities.

Based  on its  assessment,  the  Company  determined  that the  majority  of its
processing  systems are outsourced to industry  standard  vendors.  The Company,
through its Year 2000 Committee,  has identified  critical vendors and processes
and have put in place monitoring and measuring techniques to assure its critical
vendors are complying with the Federal Financial  Institutions Examining Council
guidelines for Year 2000 compliance.  In brief, the Company's loan,  deposit and
general ledger systems are outsourced to Fiserv, Inc.; the investment accounting
is outsourced to First  Tennessee  Bank;  ATM  processing is outsourced to U. S.
Bank Network  Services;  and the trust account system employs Sungard  software.
The Company is subject to quarterly  reviews by the Office of the Comptroller of
the  Currency  (OCC),  including  year 2000  compliance.  The Company  presently
believes that with the modifications to existing software and the conversions to
new  software  that  have  been  completed,  that the year  2000  issue has been
mitigated without impact on the Company's operations.

The Company has  completed  formal  communications  with all of its  significant
suppliers and large  customers to determine  the status of Year 2000  compliance
and, if  appropriate,  contingency  plans and business  resumption  plans are in
place in the unlikely event the vendor or customer should experience a Year 2000
compliant failure. To date, 90% of our vendors have responded that they are Year
2000  compliant,  8% have reported that they are working  diligently and will be
Year 2000  compliant  before  January 1, 2000 and 2% have not yet  stated  their
position  (additional vendors have been added since last reported).  The Company
is closely  following  the  progress  of those  vendors  who are  working on the
project and none of the later group is deemed to be in any way significant.

The Company has utilized  both  internal and external  resources to reprogram or
replace, test and validate the software for Year 2000 modifications. The Company
has  estimated  that the overall  Year 2000  dollar  expense  for  upgrades  and
equipment  will total  between  $800,000 and  $1,000,000.  This budget  estimate
includes (but is not limited to)  expenditures  for upgrades to Item  Processing
software and hardware,  NCR ATM's,  third party reviews of outsourcing  vendors,
proxy testing,  PC software and hardware,  the cost of service vendors mailings,
follow-up  testing,  customer  awareness  efforts and  commercial  customer risk
assessments.  The Company has completed all renovations on critical systems.  To
date,  the Company has  incurred  approximately  $655,000  in  expenses,  funded
through general operations.  No major information  technology projects have been
significantly  delayed as a result of Year 2000 compliance efforts. The costs of
the project to complete the Year 2000  modifications  are based on  management's
best estimates and efforts, which were derived utilizing numerous assumptions of
future events, including the continued availability of certain resources,  third
party modifications plans and other factors. The Company does not anticipate any
material  disruption of service;  however,  there can be no guarantee that these
estimates will be achieved.



                                       16



Market Risk

Market risk is the risk of loss in a financial  instrument  arising from adverse
changes in market rates/prices such as interest rates, foreign currency exchange
rates,  commodity prices,  and equity prices.  The Company's primary market risk
exposure is interest rate risk.  The ongoing  monitoring  and management of this
risk is an  important  component  of the  Company's  asset/liability  management
process,  which is governed by policies  established  by its Board of Directors,
which  reviews and approves  them  annually.  The Board of  Directors  delegates
responsibility for carrying out the  asset/liability  management policies to the
Asset/Liability Committee (ALCO). In this capacity, ALCO develops guidelines and
strategies impacting the Company's asset/liability management related activities
based upon estimated market risk sensitivity,  policy limits, and overall market
related interest level and trends.

At Community Bank System,  Inc., the  fundamental  purpose behind  interest rate
risk  management  is to maximize  net  interest  income  over both a  short-term
tactical and  longer-term  strategic time horizon.  Because the Company does not
believe it is possible to reliably  predict future interest rate  movements,  it
has maintained an appropriate  process and set of measurement tools which enable
it to identify and quantify sources of interest rate risk.

The primary  tool used by the Company in managing  interest  rate risk is income
simulation.  The  analysis  begins by  measuring  the impact of  differences  in
maturity and  repricing  of all balance  sheet  positions.  Such work is further
augmented by adjusting for prepayment and embedded  option risk found  naturally
in certain  asset and  liability  classes.  Finally,  balance  sheet  growth and
funding expectations are added to the analysis in order to reflect the strategic
initiatives set forth by the Company.

Changes in net interest  income are reviewed after  subjecting the balance sheet
to an array of Treasury  yield curve  possibilities  including an up or down 200
basis point  movement in rates from  current  levels.  While such an  aggressive
movement in rates provides  management with good insight as to how the Company's
profit margins may perform under extreme market conditions,  results from a more
modest  shift  in  interest  rates  are used as a basis  to  conduct  day-to-day
business decisions.

The following  reflects the Company's one year net interest  income  sensitivity
analysis as of June 30, 1999. In addition to a 200 basis point increase/decrease
in rates, this analysis assumes a static, no growth balance sheet:

    Rate Change                   Estimated
    Basis Points          Net Interest Income Sensitivity

    + 200 bp                         .20%

    - 200 bp                       (1.25%)

The Company does not anticipate that results of the  sensitivity  analysis based
on  September  30,  1999  data will  materially  differ  from the June 30,  1999
results.

The preceeding interest rate risk analysis does not represent a Company forecast
and should not be relied upon as being indicative of expected operating results.
These hypothetical estimates are based upon numerous assumptions including:  the
nature  and  timing  of  interest  rate  levels  including  yield  curve  shape,
prepayments on loans and securities,  deposit decay rates,  pricing decisions on
loans and deposits,  reinvestment/replacement  of asset and liability cashflows,
and others.  While the assumptions are developed based upon current economic and
local  market  conditions,  the  Company  cannot make any  assurances  as to the
predictive  nature of these  assumptions  including how customer  preferences or
competitor influences might change.  Furthermore,  the sensitivity analysis does
not  reflect  actions  that ALCO might  take in  responding  to or  anticipating
changes in interest rates.



                                       17



Due to the potential for unexpected  fluctuations in deposits and loans,  active
management of the Company's liquidity is critical.  In order to respond to these
circumstances, adequate sources of both on- and off-balance sheet funding are in
place.

CBSI's  primary   approach  to  measuring   liquidity  is  known  as  the  Basic
Surplus/Deficit  model. It is used to calculate liquidity over two time periods:
first,  the  relationship  within 30 days between  liquid assets and  short-term
liabilities which are vulnerable to nonreplacement;  and second, a projection of
subsequent  cash flow  funding  needs over an  additional  60 days.  The minimum
policy level of liquidity  under the Basic  Surplus/Deficit  approach is 7.5% of
total assets for both the 30 and 90 day time horizons. As of September 30, 1999,
this ratio was 16.5% and 18.4%, respectively.



                                       18



                             Supplemental Schedules

A)   The following table sets forth certain  information  concerning  average  interest-earning
     assets and interest-bearing  liabilities and the yields and rates thereon. Interest income
     and resultant yield information in the tables are on a fully  tax-equivalent basis using a
     marginal  federal income tax rate of 35%.  Averages are computed on daily average balances
     for each month in the  period  divided  by the  number of days in the  period.  Yields and
     amounts earned include loan fees. Nonaccrual loans have been included in interest earnings
     for purposes of these computations.
                                         Third Quarter Ended September 30,
                            ---------------------------------------------------------------------
                                        1999                              1998
                            ---------------------------------------------------------------------
(000's omitted except                 Avg.   Amt. of     Avg.           Avg.   Amt. of     Avg.
 yields and rates)                 Balance  Interest Yield/Rate      Balance  Interest Yield/Rate
                                                         Paid                              Paid
ASSETS:                     ---------------------------------------------------------------------
                                                                        
Interest-earning assets:
  Federal funds sold              $      0  $      0    0.00%     $    8,191   $   112    5.41%
 Time deposits in                       74         0    1.24%             35         0    5.30%
   other banks

  Taxable investment               530,251     8,990    6.73%        585,392     9,553    6.47%
   securities
  Nontaxable investment            113,297     1,938    6.79%         35,465       673    7.53%
   securities
  Loans (net of                    960,860    21,438    8.85%        898,992    21,165    9.34%
   unearned discount)             -------- ---------               --------- ---------
     Total interest-earning      1,604,482    32,366    8.00%      1,528,075    31,503    8.18%
      assets

Noninterest earning assets
  Cash and due from                 57,340                            55,615
   banks
  Premises and equipment            24,307                            24,649
  Other Assets                      78,341                            82,709
  Less:allowance for loans        (12,942)                          (12,270)
  Net unrealized gains/(losses)
   on available-for-sale
   portfolio                       (8,433)                             3,831
                                  --------                         ---------
     Total                     $ 1,743,095                       $ 1,682,609
                                 =========                         =========

LIABILITIES AND
SHAREHOLDERS' EQUITY:
Interest-bearing liabilities
  Savings deposits               $ 514,671     2,806    2.16%     $  511,138     3,060    2.38%
  Time deposits                    615,821     7,801    5.03%        685,490     9,634    5.58%
  Short-term borrowings            142,552     1,862    5.18%          7,182       103    5.69%
  Long-term borrowings              99,815     1,730    6.88%        115,514     1,979    6.80%
                                   -----------------               -------------------
     Totalinterest-bearing       1,372,859    14,199    4.10%      1,319,324    14,776    4.44%
      liabilities

Noninterest bearing
 liabilities
 Demand deposits                   240,670                           220,294
 Other liabilities                  16,300                            19,930
 Shareholders' equity              113,266                           123,061
                                  --------                         ---------
     Total                     $ 1,743,095                       $ 1,682,609
                                 =========                         =========

Net interest earnings                       $ 18,167                          $ 16,727
                                            =========                         =========

Net yield on                                            4.49%                             4.34%
interest-earning assets                                =======                           =======

Federal tax exemption on nontaxable investment
securities included in interest income           614                               214



                                       19



B)   The change in net interest income may be analyzed by segregating the volume
     and rate components of the changes in interest income and interest  expense
     for each underlying category.

The volume and rate components of interest income and interest  expense for each
underlying category are as follows:

                             ---------------------------------
                              3rd Quarter 1999 versus 3rd
                              Quarter 1998
                             ---------------------------------

                              Increase (Decrease) Due to
                              Change In (1)

                                                        Net
                                 Volume      Rate    Change
Interest earned on:
Federal funds sold and
securities purchased under         (56)      (56)     (112)
agreements to resell


Time deposits in other banks          2       (2)         -


Taxable investment              (2,486)     1,923     (563)
securities


Nontaxable investment             1,714     (449)     1,265
securities


Loans (net of unearned            5,147   (4,874)       273
discounts)

Total interest-earning
assets (2)                        4,365   (3,502)       863


Interest paid
on:                                 138     (392)     (254)
Savings deposits


Time deposits                     (930)     (903)   (1,833)


Short-term borrowings             1,823      (64)     1,759


Long-term borrowings              (398)       149     (249)


Total interest-bearing            2,909   (3,486)     (577)
liabilities (2)


Net interest earnings (2)           853       587     1,440



1)   The change in interest  due to both rate and volume has been  allocated  to
     volume and rate changes in proportion to the  relationship  of the absolute
     dollar amounts of change in each.

2)   Changes due to volume and rate are computed from the respective  changes in
     average  balances and rates of the totals;  they are not a summation of the
     changes of the components.



                                       20

C)   The  following  table sets forth  information  by category  of  noninterest
     expenses of the Company for the periods indicated.


                         Three Months Ended September 30,         Nine Months Ended September 30,
(000's omitted)     --------------------------------------    --------------------------------------
                                          Change    Change                          Change    Change
                          1999     1998   Amount   Percent         1999      1998   Amount   Percent
                    --------------------------------------    --------------------------------------
                                                                        
Personnel expense        6,655    6,357      298      4.7%       19,734    19,343       391     2.0%

Net occupancy expense      938    1,041    (103)     -9.9%        2,983     3,116     (133)    -4.3%

Equipment expense          778      993    (215)    -21.7%        2,577     2,609      (32)    -1.2%

Professional fees          570      535       35      6.5%        1,533     1,466       67      4.6%

Data processing expense  1,050      957       93      9.7%        2,877     2,989     (112)    -3.7%

Amortization             1,153    1,157      (4)     -0.3%        3,466     3,489      (23)    -0.7%

Stationary and supplies    291      333     (42)    -12.6%          911     1,051     (140)   -13.3%

Deposit insurance premiums  44       48      (4)     -8.3%          137       143       (6)    -4.2%

Disposition of branch      179        0      179    100.0%          501         0      501    100.0%
 properties
Other                    1,607    1,825    (218)    -11.9%        4,953     4,870       83      1.7%
                     --------------------------------------    --------------------------------------
          Total         13,265   12,988      277      2.1%       39,672    38,818      854      2.2%
Total operating expenses
 as a percentage of
 average assets          3.02%    3.06%   -0.04% pts              3.12%     3.10%      0.02% pts

Efficiency ratio         52.6%    56.9%    -4.3% pts              56.0%     58.6%      -2.6% pts
 (excl one time items & intang. amort)

D)The amounts of the Company's loans outstanding (net of deferred loan fees or
  costs)at the dates indicated are shown in the following table according to
  type of loan:
                                               As of September 30,
(000's omitted)                        -------------------------------
                                                         Change Change
                                          1999    1998  Amount Percent
Real estate mortgages:                 -------------------------------
     Residential                        310,964 290,066  20,898   7.2%
     Commercial loans secured
       by real estate                   127,625 111,747  15,878  14.2%
     Farm                                15,253  11,902   3,351  28.2%
                                       -------------------------------
       Total                            453,842 413,715  40,127   9.7%

Commercial, financial, and agricultural
     Agricultural                        26,172  24,478   1,694   6.9%
     Commercial and financial           170,984 159,525  11,459   7.2%
                                       -------------------------------
       Total                            197,156 184,003  13,153   7.1%

Installment loans to individuals:
     Direct                             106,537  99,817   6,720   6.7%
     Indirect                           216,905 206,536  10,369   5.0%
     Student and other                    6,469   6,049     420   6.9%
                                       -------------------------------
          Total                         329,911 312,402  17,509   5.6%

Other Loans                               2,601     854   1,747 204.6%
                                       -------------------------------
Gross Loans                             983,510 910,974  72,536   8.0%

Less: Unearned discounts                    837   1,526   (689) -45.2%
                                       -------------------------------
Net loans                               982,673 909,448  73,225   8.1%

Reserve for possible loan losses         12,922  12,441     481   3.9%
                                       -------------------------------
Loans, net of loan loss reserve         969,751 897,007  72,744   8.1%


                                       21



E)   The following table presents information concerning the aggregate amount of
     nonperforming assets:

                                                As of September 30,
(000's omitted)
                                  ----------------------------------------------
                                                               Change    Change
                                         1999        1998      Amount   Percent
                                  ----------------------------------------------

Loans accounted for on a
  nonaccrual basis                      3,257       2,726         531     19.5%

Accruing loans which are
  contractually past due 90 days
  or more as to principal or interest
  payments                                836       1,629       (793)    -48.7%

  Total nonperforming loans             4,093       4,355       (262)     -6.0%

Loans which are "troubled debt
  restructurings" as defined
  in Statement of Financial Accounting
  Standards No. 15 "Accounting by
  Debtors and Creditors for Troubled
  Debt Restructurings"                    119         138        (19)    -13.8%

  Other Real Estate                       501       1,248       (747)    -59.9%

  Total nonperforming assets            4,713       5,741     (1,028)    -17.9%


Ratio of allowance for loan
losses to period-end loans              1.32%       1.37%      (0.05)% pts  ---

Ratio of allowance for loan
losses to period-end
nonperforming loans                    315.7%      286.0%        29.7% pts  ---

Ratio of allowance for loan
losses to period-end
nonperforming assets                   274.2%      216.7%        57.5% pts  ---

Ratio of nonperforming assets to
period-end total loans and
other real estate owned                 0.48%       0.62%      (0.14)% pts  ---



The impact of interest not recognized on nonaccrual  loans,  and interest income
that would have been  recorded  if the  restructured  loans had been  current in
accordance with their original terms, was immaterial. The Company's policy is to
place a loan on a nonaccrual status and recognize income on a cash basis when it
is more than ninety days past due,  except when in the opinion of  management it
is well secured and in the process of collection.



                                       22



F)   The  following  table  summarizes  loan  balances at the end of each period
     indicated  and the  daily  average  amount of loans.  Also  summarized  are
     changes in the  allowance  for  possible  loan  losses  arising  from loans
     charged off and recoveries on loans previously charged off and additions to
     the allowance which have been charged to expenses.




                                              Three Months Ended September 30,              Nine Months Ended September 30,
(000's omitted)
                                          -----------------------------------------   -------------------------------------------
                                                                   Change    Change                              Change    Change
                                                1999       1998    Amount   Percent          1999       1998     Amount   Percent
                                          -----------------------------------------   -------------------------------------------
                                                                                                     
Amount of loans outstanding at end
of period                                    983,510    910,974    72,536      8.0%       983,510    910,974     72,536      8.0%

Daily average amount of loans (net           960,860    898,992    61,868      6.9%       935,650    898,992     36,658      4.1%
of unearned discount)

Balance of allowance for possible
loan losses at beginning of period            13,055     12,441       614      4.9%        12,441     12,434          7      0.1%

Loans charged off:
     Commercial, financial, and agricultural     492        129       363    281.4%           864        410        454    110.7%
     Real estate construction                      0          0                                 0          0
     Real estate mortgage                          0         20       (20)  -100.0%            33         20         13     65.0%
     Installment                               1,000      1,235      (235)   -19.0%         3,167      4,075      (908)    -22.3%
                                          -----------------------------------------      -------------------------------------------
        Total loans charged off                1,492      1,384       108      7.8%         4,064      4,505      (441)     -9.8%


Recoveries of loans previously charged off:
     Commercial, financial, and agricultural      2l         51       (30)   -58.8%           113        133       (20)    -15.0%
     Real estate construction                      0          0                                 0          0
     Real estate mortgage                          2          0                                 5          0
     Installment                                 237        157        80     51.0%           738        529        209     39.5%
                                          -----------------------------------------      -------------------------------------------
          Total recoveries                       260        208        52     25.0%           856        662        194     29.3%


Net loans charged off                          1,232      1,176        56      4.8%         3,208      3,843       (635)   -16.5%

Additions to allowance charged to
expense                                        1,099      1,176       (77)    -6.5%         3,689      3,850      (161)     -4.2%

Balance at end of period                      12,922     12,441       481      3.9%        12,922     12,441        481      3.9%
Ratio of net chargeoffs to average loans
outstanding                                    0.51%      0.52%    -0.01%    ------         0.46%      0.59%     -0.13%    ------




                                       23



G)   The  following  table sets forth  information  by category  of  noninterest
     income for the Company for the periods indicated.



(000's omitted)           Three Months Ended September 30,    Nine Months Ended September 30,
                          -------------------------------------------------------------------
                              1999    1998 Change  Change      1999    1998   Change  Change
                                           Amount Percent                     Amount Percent
                          --------------------------------  ---------------------------------

                                                               
Personal trust services        295     292      3    1.0%       962     860      102   11.9%

Mutual fund and related
 investment products           262     312   (50)  -16.0%       899     910     (11)   -1.2%

BPA/EBT income                 670     594     76   12.8%     1,992   1,761      231   13.1%

Deposit service charges      1,047   1,003     44    4.4%     2,850   2,725      125    4.6%

Overdraft fees                 843     846    (3)   -0.4%     2,356   2,150      206    9.6%

Other service charges        1,407     918    489   53.3%     2,904   2,177      727   33.4%
 and fees
                          --------------------------------  ---------------------------------

Total customer related       4,524   3,965    559   14.1%    11,963  10,583    1,380   13.0%
 revenue

Net security gains           (499)     132  (631) -478.0%     (222)   1,398  (1,620) -115.9%
 (losses)

Disposition of branch            0       0      0      0         0     (68)      68  -100.0%
 properties
                          --------------------------------  ---------------------------------

 Nonrecurring other          (499)     132  (631) -478.0%     (222)   1,330  (1,552) -116.7%
  income

Miscellaneous income           (3)     101  (104) -103.0%       264     651    (387)  -59.4%
                          --------------------------------  ---------------------------------

     Total                   4,022   4,198  (176)   -4.2%    12,005  12,564    (559)   -4.4%


Total noninterest income
(excluding nonrecurring
items) as a percentage       19.9%   19.6%    0.4%pts---      19.2%   18.6%     0.6%pts---
of operating income




                                       24



Part II.  Other Information

Item  1.  Legal Proceedings.

          Not Applicable

Item  2.  Changes in Securities.

          Not Applicable

Item  3.  Defaults Upon Senior Securities.
          Not Applicable.

Item  4.  Submission of Matters to a Vote of Securities Holders.
          Not Applicable.

Item  5.  Other Information.
          Not Applicable.

Item  6.  Exhibits and Reports on Form 8-K

      a)  Exhibits required by Item 601 of Regulation S-K:

          (21) Subsidiaries of the registrant
          - Community Bank, National Association, State of New York
          - Community Financial Services, Inc., State of New York
          - Community Capital Trust I, State of Delaware
          - Benefit Plans Administrative Services, Inc., State of New York
          - CBNA Treasury Management Corporation, State of Delaware
          - Community Investment Services, Inc., State of New York
          - CBNA Preferred Funding Corporation, State of Delaware

      b)  Reports on Form 8-K:
              None




                                       25



                                        Signatures


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





                               Community Bank System, Inc.




Date: November 12, 1999
                                                Sanford A. Belden, President and
                                                         Chief Executive Officer


Date:  November 12, 1999
                                           Charles M. Ertel, Assistant Treasurer
                                                        Chief Accounting Officer



                                       26