-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0000912938-05-000665.txt : 20051229
<SEC-HEADER>0000912938-05-000665.hdr.sgml : 20051229
<ACCEPTANCE-DATETIME>20051229120049
ACCESSION NUMBER:		0000912938-05-000665
CONFORMED SUBMISSION TYPE:	NSAR-B
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20051031
FILED AS OF DATE:		20051229
DATE AS OF CHANGE:		20051229
EFFECTIVENESS DATE:		20051229

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MFS MUNICIPAL INCOME TRUST
		CENTRAL INDEX KEY:			0000801961
		IRS NUMBER:				046554822
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		NSAR-B
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-04841
		FILM NUMBER:		051290491

	BUSINESS ADDRESS:	
		STREET 1:		500 BOYLSTON ST
		STREET 2:		15TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		18006372929

	MAIL ADDRESS:	
		STREET 1:		500 BOYLSTON STREET
		STREET 2:		15TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
</SEC-HEADER>
<DOCUMENT>
<TYPE>NSAR-B
<SEQUENCE>1
<FILENAME>answer.fil
<TEXT>
<PAGE>      PAGE  1
000 B000000 10/31/2005
000 C000000 0000801961
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 MFS MUNICIPAL INCOME TRUST
001 B000000 811-4841
001 C000000 6179545000
002 A000000 500 BOYLSTON STREET
002 B000000 BOSTON
002 C000000 MA
002 D010000 02116
003  000000 N
004  000000 N
005  000000 N
006  000000 N
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007 C010100  1
008 A000001 MASSACHUSETTS FINANCIAL SERVICES COMPANY
008 B000001 A
008 C000001 801-17352
008 D010001 BOSTON
008 D020001 MA
008 D030001 02116
010 A000001 MASSACHUSETTS FINANCIAL SERVICES COMPANY
010 B000001 801-17352
010 C010001 BOSTON
010 C020001 MA
010 C030001 02116
012 A000001 MFS SERVICE CENTER, INC.
012 B000001 84-1316
012 C010001 BOSTON
012 C020001 MA
012 C030001 02116
013 A000001 DELOITTE & TOUCHE LLP
013 B010001 BOSTON
013 B020001 MA
013 B030001 02116
015 A000001 STATE STREET BANK AND TRUST COMPANY
015 B000001 C
015 C010001 BOSTON
015 C020001 MA
015 C030001 02110
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015 A000002 THE BANK OF NEW YORK
015 B000002 S
<PAGE>      PAGE  2
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015 C030002 10286
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022 A000001 MERRILL LYNCH & CO., INC.
022 B000001 13-5674085
022 C000001    200841
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022 A000002 MORGAN STANLEY
022 B000002 13-2655998
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022 B000003 13-3224017
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022 A000004 CITIGROUP, INC.
022 B000004 13-3187336
022 C000004     20677
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022 C000005     10063
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080 A000000 AIG/CHUBB (co-surety)
080 B000000 C.N.A
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081 A000000 Y
081 B000000 150
082 A000000 Y
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SIGNATURE   ELLEN MOYNIHAN
TITLE       ASSISTANT TREASURER

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77Q2 ITEM 405
<SEQUENCE>2
<FILENAME>q772.txt
<TEXT>
 ITEM 77Q2

Elaine R. Smith and Joseph C.  Flaherty each failed to file a report as required
under Section 16(a) of the  Securities Act of 1934 in a timely manner during the
Trust's  most recent  fiscal year ended  October 31,  2005.  Elaine R. Smith and
Joseph C.  Flaherty  each  filed one  report  delinquently  which  involved  one
transaction reported late.
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77B ACCT LTTR
<SEQUENCE>3
<FILENAME>b77.txt
<TEXT>



             REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Trustees and the Shareholders of MFS Municipal Income Trust:

In  planning  and  performing  our  audit  of the  financial  statements  of MFS
Municipal  Income Trust (The  "Trust") as of and for the year ended  October 31,
2005,  in  accordance  with  the  standards  of the  Public  Company  Accounting
Oversight  Board  (United  States),  we  considered  its  internal  control over
financial reporting,  including control activities for safeguarding  securities,
as a basis for designing our auditing  procedures  for the purpose of expressing
our opinion on the financial  statements and to comply with the  requirements of
Form  N-SAR,   but  not  for  the  purpose  of  expressing  an  opinion  on  the
effectiveness  of  the  Trust's  internal  control  over  financial   reporting.
Accordingly, we express no such opinion.

The  management of the Trust is responsible  for  establishing  and  maintaining
effective  internal  control  over  financial  reporting.   In  fulfilling  this
responsibility, estimates and judgments by management are required to assess the
expected  benefits and related costs of controls.  A company's  internal control
over financial  reporting is a process designed to provide reasonable  assurance
regarding  the  reliability  of  financial  reporting  and  the  preparation  of
financial statements for external purposes in accordance with generally accepted
accounting  principles.  Such internal control includes  policies and procedures
that provide reasonable  assurance  regarding  prevention or timely detection of
unauthorized  acquisition,  use or disposition of a company's  assets that could
have a material effect on the financial statements.

Because of its inherent  limitations,  internal control over financial reporting
may not prevent or detect misstatements.  Also, projections of any evaluation of
effectiveness to future periods are subject to the risk that controls may become
inadequate  because of changes in  conditions,  or that the degree of compliance
with the policies or procedures may deteriorate.

A control  deficiency  exists when the design or operation of a control does not
allow management or employees, in the normal course of performing their assigned
functions,  to prevent or detect  misstatements on a timely basis. A significant
deficiency is a control deficiency, or combination of control deficiencies, that
adversely affects the company's ability to initiate,  authorize, record, process
or  report  financial  data  reliably  in  accordance  with  generally  accepted
accounting  principles  such that there is more than a remote  likelihood that a
misstatement  of the company's  annual or interim  financial  statements that is
more than inconsequential will not be prevented or detected. A material weakness
is a significant deficiency,  or combination of significant  deficiencies,  that
results in more than a remote  likelihood  that a material  misstatement  of the
annual or interim financial statements will not be prevented or detected.


Our  consideration of the Trust's internal control over financial  reporting was
for  the  limited  purpose  described  in the  first  paragraph  and  would  not
necessarily  disclose  all  deficiencies  in  internal  control  that  might  be
significant  deficiencies or material weaknesses under standards  established by
the Public Company Accounting Oversight Board (United States). However, we noted
no deficiencies in the Trust's internal control over financial reporting and its
operation,  including controls for safeguarding securities,  that we consider to
be a material weakness as defined above as of October 31, 2005.

This report is intended solely for the information and use of management and the
Trustees  of  MFS  Municipal  Income  Trust  and  the  Securities  and  Exchange
Commission and is not intended to be and should not be used by anyone other than
these specified parties.

DELOITTE & TOUCHE LLP

Boston, Massachusetts
December 22, 2005
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77Q1 OTHR EXHB
<SEQUENCE>4
<FILENAME>q771a.txt
<TEXT>


                        SUB - ITEM 77Q1(a)

The Appendix A, dated June 28, 2005 to the Master  Amended and Restated  By-Laws
for MFS Municipal Income Trust,  dated January 1, 2002 as revised June 23, 2004,
is contained in  Post-Effective  Amendment No. 57 to the Registration  Statement
for MFS  Series  Trust X (File Nos.  33-1657  and  811-4492),  as filed with the
Securities and Exchange  Commission via EDGAR on September 28, 2005,  under Rule
485 under the Securities Act of 1933.  Such document is  incorporated  herein by
reference.
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
