<DOCUMENT>
<TYPE>EX-99.77Q3 CERT
<SEQUENCE>3
<FILENAME>ex99-77q3cert.txt
<TEXT>


68482

                                                              Exhibit Q
                                                              Page 1 of 4

                                  SUB-ITEM 77Q3

                           MFS Municipal Income Trust

(a)(i)      Based upon their evaluation of the registrant's  disclosure controls
            and  procedures  as  conducted  within 90 days of the filing date of
            this report,  the  registrant's  chief  financial  officer and chief
            executive officer have concluded that those disclosure  controls and
            procedures   provide   reasonable   assurance   that  the   material
            information  required  to be  disclosed  by  the  registrant  in the
            reports it files or submits  under the  Securities  Exchange  Act of
            1934,  as  amended  (the  "1934  Act"),   is  recorded,   processed,
            summarized and reported in substantial  compliance with the 1934 Act
            and the Commission's rules and forms thereunder.

(ii)        There  were no  significant  changes  in the  registrant's  internal
            controls or in other factors that could  significantly  affect these
            controls subsequent to the date of their last evaluation.

(iii)    Certifications

     I, Richard M. Hisey, certify that:

1.       I have reviewed this report on Form N-SAR of MFS Municipal Income
Trust;

2.       Based  on my  knowledge,  this  report  does  not  contain  any  untrue
         statement of a material fact or omit to state a material fact necessary
         to make the statements made, in light of the circumstances  under which
         such  statements  were made, not misleading  with respect to the period
         covered by this report;

3.       Based on my  knowledge,  the  financial  information  included  in this
         report, and the financial statements on which the financial information
         is  based,  fairly  present  in all  material  respects  the  financial
         condition, results of operations, changes in net assets, and cash flows
         (if the  financial  statements  are  required to include a statement of
         cash flows) of the registrant as of, and for, the periods  presented in
         this report;

4.       The registrant's  other  certifying  officers and I are responsible for
         establishing  and  maintaining  disclosure  controls and procedures (as
         defined in Rule  30a-2(c)  under the  Investment  Company  Act) for the
         registrant and have:

a.               designed such disclosure controls and procedures to ensure that
                 material information relating to the registrant,  including its
                 consolidated subsidiaries, is made known to us by others within
                 those  entities,  particularly  during the period in which this
                 report is being prepared;

                                                                Exhibit Q
                                                              Page 2 of 4



b.       evaluated the  effectiveness  of the registrant's  disclosure  controls
and procedures as of a date within
                 90 days prior to the filing date of this report
(the "Evaluation Date"); and

c.       presented  in this  report  our  conclusions  about  the  effectiveness
of the  disclosure  controls  and
                 procedures based on our evaluation as of the Evaluation Date;

5.       The registrant's other certifying officers and I have disclosed,  based
         on our most recent  evaluation,  to the  registrant's  auditors and the
         audit  committee of the  registrant's  board of  directors  (or persons
         performing the equivalent functions):

a.       all  significant  deficiencies  in the design or  operation  of
internal  controls  which could  adversely
                    affect the registrant's ability to record,  process,
summarize,  and report financial data and
                    have identified for the  registrant's  auditors any material
weaknesses in internal  controls;
                    and

b.       any fraud,  whether or not material,  that involves  management or
other  employees who have a significant
                    role in the registrant's internal controls; and

6.       The registrant's other certifying officers and I have indicated in this
         report  whether  or not there  were  significant  changes  in  internal
         controls or in other factors that could  significantly  affect internal
         controls  subsequent  to  the  date  of  our  most  recent  evaluation,
         including   any   corrective   actions   with  regard  to   significant
         deficiencies and material weaknesses.

Date:   December 20, 2002__

                                                     _/s/ RICHARD M. HISEY___
                                                     ------------------------
                                                     Richard M. Hisey
                                                     Chief Financial Officer


<PAGE>



                                                                Exhibit Q
                                                                Page 3 of 4

                                          SUB-ITEM 77Q3

                           MFS Municipal Income Trust

   (iii) Certifications (continued)

     I, John W. Ballen, certify that:

     1.  I have reviewed this report on Form N-SAR of MFS Municipal Income
Trust;

2.       Based  on my  knowledge,  this  report  does  not  contain  any  untrue
         statement of a material fact or omit to state a material fact necessary
         to make the statements made, in light of the circumstances  under which
         such  statements  were made, not misleading  with respect to the period
         covered by this report;

3.       Based on my  knowledge,  the  financial  information  included  in this
         report, and the financial statements on which the financial information
         is  based,  fairly  present  in all  material  respects  the  financial
         condition, results of operations, changes in net assets, and cash flows
         (if the  financial  statements  are  required to include a statement of
         cash flows) of the registrant as of, and for, the periods  presented in
         this report;

4.       The registrant's  other  certifying  officers and I are responsible for
         establishing  and  maintaining  disclosure  controls and procedures (as
         defined in Rule  30a-2(c)  under the  Investment  Company  Act) for the
         registrant and have:

            a.   designed such disclosure controls and procedures to ensure that
                 material information relating to the registrant,  including its
                 consolidated subsidiaries, is made known to us by others within
                 those  entities,  particularly  during the period in which this
                 report is being prepared;

b.       evaluated the  effectiveness  of the registrant's  disclosure  controls
and procedures as of a date within
                 90 days prior to the filing date of this report
(the "Evaluation Date"); and

c.       presented  in this  report  our  conclusions  about  the  effectiveness
of the  disclosure  controls  and
                 procedures based on our evaluation as of the Evaluation Date;

     5.  The registrant's other certifying officers and I have disclosed,  based
         on our most recent  evaluation,  to the  registrant's  auditors and the
         audit  committee of the  registrant's  board of  directors  (or persons
         performing the equivalent functions):

a.       all  significant  deficiencies  in the design or  operation  of
internal  controls  which could  adversely
                    affect the registrant's ability to record,  process,
summarize,  and report financial data and
                    have identified for the  registrant's  auditors any material
weaknesses in internal  controls;
                    and

                                                               Exhibit Q
                                                               Page 4 of 4


b.       any fraud,  whether or not material,  that involves  management or
other  employees who have a significant
                    role in the registrant's internal controls; and

     6.  The registrant's other certifying officers and I have indicated in this
         report  whether  or not there  were  significant  changes  in  internal
         controls or in other factors that could  significantly  affect internal
         controls  subsequent  to  the  date  of  our  most  recent  evaluation,
         including   any   corrective   actions   with  regard  to   significant
         deficiencies and material weaknesses.

Date: __December 20, 2002___
        -----------------



                                                     _/s/ JOHN W. BALLEN___
                                                     ----------------------
                                 John W. Ballen

                                                     Chief Executive Officer

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