EXHIBIT 10(A)

                   COMMERCE BANCSHARES, INC.

             EXECUTIVE INCENTIVE COMPENSATION PLAN

       AMENDMENT AND RESTATEMENT AS OF DECEMBER 31, 1999


1.   PURPOSE

     The policy of Commerce Bancshares, Inc. ("Commerce") is to
compensate its officers based on performance.  The purpose of
this Executive Incentive Compensation Plan ("Plan") is to provide
incentive compensation awards to those individuals whose
management efforts reflect a desire to meet commonly agreed upon
objectives or to those who by their superior performance directly
contribute to the profitability of Commerce and to encourage the
retention of outstanding contributors.

2.   ADMINISTRATION

     The Plan shall be administered by the Compensation and
Benefits Committee of the Board of Directors ("Board") of
Commerce, which shall consist solely of two or more directors who
are "non-employee directors" under Rule 16b-3(b)(3) promulgated
under the Securities Exchange Act of 1934, as amended, or any
successor provision thereto.  The Committee shall have authority
in its sole discretion to interpret the Plan, establish rules and
procedures thereunder, and make all determinations, including the
determination of incentive compensation awards eligible to be
deferred under the Plan.  All determinations made by the
Committee shall be final and binding.

3.   ELIGIBLE PARTICIPANTS

     All chief executive officers, Chairmen of the Board,
Presidents, and Vice Presidents of Commerce or any of its
affiliated banks or subsidiary companies shall be eligible to
participate in the Plan, together with such other officers of
Commerce and its affiliated banks and subsidiary companies as the
Committee shall determine.  Directors who are not officers or
employees of Commerce, an affiliated bank, or a subsidiary
company, are not eligible to participate in the Plan.

4.   DETERMINATION OF AWARD

     The Board of Commerce shall at its sole discretion approve
the amount of the aggregate incentive compensation awards to be
granted based on the recommendations of the Committee.  Incentive
compensation awards made under this Plan shall be determined with
reference to performance during the preceding year.  The
incentive compensation awards to be made to the Chairman of the
Board, President and/or Chief Executive Officer of Commerce shall
be determined by the Committee and all other awards to be made
under this Plan may be determined by the Committee or, should the
Committee so direct, by a committee consisting of the Chief
Executive Officer, a Vice Chairman designated by the Chief
Executive Officer, and the chief human resources officer.



5.   PAYMENT OF INCENTIVE AWARD

     Incentive compensation awards are generally determined and
made on or before the date of the annual meeting of shareholders
of Commerce.  The normal method of payment will be in the form of
cash and awards will be paid as soon as practicable after the
awards are determined; provided, that the recipient of an award
shall not have elected to defer receipt of the incentive
compensation award as hereinafter provided.

6.   DEFERRAL OPTIONS

     a.   Eligible employees who are members of a select group of
          management or highly compensated employees, as selected
          by  the Commerce Director of Human Resources in his  or
          her discretion, may elect to defer all or a portion  of
          an  incentive compensation award until the  earlier  to
          occur of retirement, death, or termination.  A deferral
          must  be  expressed either as "all" or as  a  specified
          dollar amount.  Any incentive compensation award  above
          the  specified amount will be paid in cash, and if  the
          award is less than the amount deferred, the total award
          will   be  deferred.   The  granting  of  an  incentive
          compensation   award  is  discretionary   and   neither
          delivery of deferral election materials nor an election
          to  defer  shall affect entitlement to such  an  award.
          All   deferral  elections  made  under  the  Plan   are
          irrevocable.  It  is  intended  that  this  arrangement
          qualify  as,  and shall be administered to  qualify  as
          being  unfunded and being primarily for the purpose  of
          providing deferred compensation for a select  group  of
          management or highly compensated employees.


     b.   In   order  to  ensure  that  elections  to   defer
          incentive  compensation awards are effective  under
          applicable  tax  laws,  all  persons  eligible   to
          participate  in  this  Plan  will  be   given   the
          opportunity to defer payment of all or a portion of
          an  incentive compensation award.  An  election  to
          defer  must  be made in a written form satisfactory
          to  Commerce  and must be received by the  Commerce
          Director  of Human Resources on or before the  last
          business  day  of the year preceding the  year  for
          which  performance  is measured  to  determine  the
          granting of an incentive compensation award

     c.     An  eligible employee in electing a deferred  payment
          shall  also elect the accounts, from among the accounts
          that  Commerce  makes  available to  the  participating
          employee,  to which the relevant portion of  the  award
          deferral   will  be  credited.   Credits  to  available
          accounts  for  deferral  of an  incentive  compensation
          award shall be determined from time to time based  upon
          hypothetical  measuring  investments  (the   "Measuring
          Investments")  for  each account; one  of  which  shall
          consist  of a Company Stock Account and there shall  be
          such other accounts determined from time to time by the
          Director  of  Human Resources in his or her discretion.
          Such  accounts are bookkeeping accounts  only  and  are
          maintained  for  the  sole purpose of  determining  the
          amount  payable  by  Commerce to the eligible  employee
          based   upon  the  hypothetical  performance   of   the
          Measuring Investments for each such account, determined
          as  if the account had assets invested in the Measuring
          Investments  for  such account.   No  assets  shall  be
          segregated for the

          benefit of an eligible employee and the bookkeeping
          account shall not represent assets set aside for the
          benefit of an eligible employee.

          With  the exception of the Commerce Stock Account,
          an eligible employee may elect to transfer credits
          between accounts, and the amount credited  to  all
          such  accounts shall be determined  from  time  to
          time,  all  pursuant to non-discriminatory  rules,
          procedures  and  deadlines  set  by  the  Commerce
          Director   of   Human  Resources,   which   rules,
          procedures, and deadlines may be amended from time
          to   time   in  such  officer's  discretion   (the
          "Administrative Rules").  Except as set  forth  in
          the  following  paragraph,  however,  an  eligible
          employee  may elect to transfer credits  into  the
          Commerce  Stock  Account,  but  not  out  of   the
          Commerce  Stock Account.  Any election to transfer
          a  credit  to the Commerce Stock Account or  among
          the other accounts (a "Transfer Election") must be
          received   by  the  Commerce  Director  of   Human
          Resources by the date set by the Commerce Director
          of  Human Resources and must be in a written  form
          satisfactory  to  such  officer,  in   each   case
          pursuant   to  the  Administrative   Rules.    Any
          transfer  to the Commerce Stock Account  shall  be
          based  upon the last sale price of Commerce  Stock
          as   reported  by  the  National  Association   of
          Security  Dealers National Market  System  on  the
          trading  day  determined in  accordance  with  the
          Administrative Rules.  The credit transferred from
          any  other account shall be based upon the  amount
          credited to such account as of the date determined
          in accordance with the Administrative Rules.

          Notwithstanding  the above, an  eligible  employee
          may  make a one-time election to remove any or all
          amounts  out  of  the Commerce  Stock  Account  (a
          "Diversification  Election") as  of  February  17,
          2000.  Such Diversification Election must be  made
          at  the time and in the manner determined pursuant
          to  the  Administrative Rules.  Any transfer  from
          the Commerce Stock Account shall be based upon the
          last  sale price of Commerce Stock as reported  by
          the   National  Association  of  Security  Dealers
          National   Market  System  on  the   trading   day
          determined  in  accordance with the Administrative
          Rules.   The amount transferred from the  Commerce
          Stock  Account  pursuant  to  the  Diversification
          Election  shall be based upon the number of  units
          credited to such account as of the date determined
          in accordance with the Administrative Rules.

     d.   The accounts made available for the deferral of incentive
          compensation awards are bookkeeping accounts.  The amount
          credited to each account, including any hypothetical earnings,
          gains or losses, will be determined in accordance with the
          Administrative Rules, based on the investment performance of the
          Measuring Investments for such Account.  The timing and manner of
          making credits or debits to each account shall be determined in
          accordance with the Administrative Rules.

     e.   Commerce shall provide periodically to each participant
          (but not less frequently than once per calendar year) a
          statement setting forth the balance to the credit of
          such participant in each of the accounts.


     f.   Amounts deferred under the provisions of this Plan will
          be disbursed to participants in accordance with the
          following:

          (1)  An amount equal to the amounts credited to
               accounts other than the Commerce Stock Account
               will be paid by Commerce in a single distribution
               as soon as reasonably practicable after
               retirement, disability, death or other termination
               of employment, except that a participant may elect
               to instead have payment made in up to ten annual
               equal installments or in such installments after
               receiving a lump sum payment of a portion of the
               payment due.  Annual installments will be paid in
               an amount, less applicable withholding taxes,
               determined by multiplying the balance in the
               Discretionary Account by a fraction, the numerator
               of which is one (1) and the denominator of which
               is a number equal to remaining unpaid annual
               installments.

          (2)  If a participant dies after the commencement of
               payments from such participant's accounts other
               than the Commerce Stock Account, the designated
               beneficiary shall receive the remaining
               installments over the elected installment period.

          (3)  With respect to a participant's Commerce Stock
               Account, upon such participant's disability,
               death, retirement, or other termination of
               employment, Commerce shall transfer to such
               participant a number of shares of Commerce stock,
               and cash for any fractional shares, equal to the
               units credited to the participant's Commerce Stock
               Account.  No payment, however, shall be made with
               respect to the Commerce Stock Account until
               arrangements satisfactory to Commerce shall have
               been made to provide for payment to Commerce of
               federal, state, local, and payroll withholding
               taxes attributable to such payment.

          (4)  Each participant shall have the right at any time
               to designate any person or persons as beneficiary
               or beneficiaries (both principal as well as
               contingent) to whom payment under this Plan shall
               be made in the event of death prior to complete
               distribution to the participant of the amounts due
               under this Plan.   Any beneficiary designation may
               be changed by a participant by the filing of such
               change in writing on a form prescribed by
               Commerce.  The filing of a new beneficiary
               designation form will cancel all beneficiary
               designations previously filed and will apply to
               all deferrals in the account.  If a beneficiary
               has not been designated or if all designated
               beneficiaries predecease the participant, then any
               amounts payable to the beneficiary shall be paid
               to the participant's estate in one lump sum.

          (5)  If there is any change in the number or class of
               shares of Commerce stock through the declaration
               of stock dividend or other extraordinary dividends
               or recapitalization resulting in stock splits or
               combinations or exchanges of such shares or in the
               event of similar corporate transactions, each
               participant's Commerce Stock Account shall be
               equitably adjusted to

               reflect any such change in the number or class of
               issued shares of common stock of Commerce or to
               reflect such similar corporate transaction.

          (6)  The Human Resources/Salary Committee of Commerce,
               upon 30 days written notice, may approve a
               "hardship" request for distribution of a deferred
               award.  Unless the participant presents proof
               satisfactory to such committee of financial need,
               requests for hardship distribution will be denied.
               Each request will be evaluated on the basis of
               uniformly applied criteria.

7.   AMENDMENT AND TERMINATION OF PLAN

     The Board of Directors may at its discretion and at any time
amend the Plan in whole or in part.  The Committee may terminate
the Plan in its entirety at any time, and, upon such termination
or such later date or dates, each participant shall:  receive, in
a single distribution, the shares and cash for the fractions
thereof of Commerce Stock credited to the Commerce Stock Account;
and shall be paid, in a single distribution or over such period
of time as determined by the Committee, an amount equal to the
then remaining amount credited to such participant's accounts
other than the Commerce Stock Account.

8.   MISCELLANEOUS

     a.   A participant under this Plan is merely a general unsecured
          creditor and nothing contained in this Plan shall create a trust
          of any kind or a fiduciary relationship between Commerce and the
          participant or the participant's estate.  Nothing contained
          herein shall be construed as conferring upon the participant the
          right to continued employment with Commerce or its subsidiaries
          or to an incentive compensation award.  Except as otherwise
          provided by applicable law, benefits payable under this Plan may
          not be assigned or hypothecated, and no such benefits shall be
          subject to legal process or attachment for the payment of any
          claim of any person entitled to receive the same.

     b.   The amendment of the Plan to allow a Commerce Stock deferral
          option shall become effective on the date the shareholders of
          Commerce approve the same.  Subject to such approval, an employee
          having a deferred option may elect (but prior to June 30, 1994)
          to transfer his balance in the Treasury Bill Account and/or the
          Treasury Note Account as of April 1, 1994 to the Commerce Stock
          Account with the number of units credited to his account
          determined as provided in Section 6d hereof but based on the last
          sale price as of the last day in March 1994 on which a trade of
          Commerce Stock is reported.  An employee who in 1993 deferred a
          potential incentive compensation award with respect to
          performance in 1994 and elected either a Treasury Bill Account or
          a Treasury Note Account may elect prior to June 30, 1994 to defer
          such award for 1994 to the Common Stock Account.

     c.   Notwithstanding any other provision herein, Commerce may
          establish a trust subject to the claims of the general creditors
          of Commerce (a "rabbi trust") and


          deposit amounts into the rabbi trust.  Although any payments
          from the rabbi trust to a participant shall discharge Commerce's
          obligation to the extent of payment made, this plan is unfunded
          and no participant shall have an interest in any rabbi trust asset.