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Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0000912938-09-000444.txt : 20091223
<SEC-HEADER>0000912938-09-000444.hdr.sgml : 20091223
<ACCEPTANCE-DATETIME>20091223162635
ACCESSION NUMBER:		0000912938-09-000444
CONFORMED SUBMISSION TYPE:	NSAR-B
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20091031
FILED AS OF DATE:		20091223
DATE AS OF CHANGE:		20091223
EFFECTIVENESS DATE:		20091223

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:		091258334

	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 10/31/2009
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
007 A000000 N
007 B000000  0
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
012 A000002 COMPUTERSHARE TRUST COMPANY, N.A.
012 B000002 85-11340
012 C010002 PROVIDENCE
012 C020002 RI
012 C030002 02940
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
<PAGE>      PAGE  2
015 C020001 MA
015 C030001 02110
015 E010001 X
015 A000002 THE BANK OF NEW YORK
015 B000002 S
015 C010002 NEW YORK
015 C020002 NY
015 C030002 10286
015 E010002 X
015 A000003 MERRILL LYNCH, PIERCE, FENNER & SMITH
015 B000003 S
015 C010003 CHICAGO
015 C020003 IL
015 C030003 60606
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018  000000 Y
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022 B000001 13-3224017
022 C000001     52027
022 D000001     46138
022 A000002 CITIGROUP, INC.
022 B000002 13-3187336
022 C000002     32567
022 D000002     32229
022 A000003 BANK OF NEW YORK CO., INC.
022 B000003 13-3878175
022 C000003      4639
022 D000003      6256
022 A000004 MORGAN STANLEY
022 B000004 13-2655998
022 C000004      7589
022 D000004      1614
022 A000005 GOLDMAN SACHS GROUP, INC.
022 B000005 13-5108880
022 C000005      4450
022 D000005      1455
022 A000006 PIPER JAFFRAY & CO.
022 B000006 41-0953246
022 C000006       725
022 D000006      2118
022 A000007 REGIONS FINANCIAL CORP.
022 B000007 00-0000000
022 C000007         0
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022 A000008 BARCLAYS PLC
022 C000008      2145
022 D000008         0
022 A000009 ROYAL BANK OF CANADA FINANCIAL GROUP
<PAGE>      PAGE  3
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022 C000009       949
022 D000009      1165
022 A000010 MERRILL LYNCH & CO., INC.
022 B000010 13-5674085
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078  000000 N
080 A000000 ICI MUTUAL/CHUBB (co-surety)
080 B000000 C.N.A.
080 C000000   120000
081 A000000 Y
081 B000000 135
082 A000000 N
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083 A000000 N
083 B000000        0
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SIGNATURE   ELLEN MOYNIHAN
TITLE       ASSISTANT TREASURER

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77B ACCT LTTR
<SEQUENCE>2
<FILENAME>b77.txt
<TEXT>
http://schemas.microsoft.com/office/word/2003/wordmlurn:schemas-
microsoft-com:office:smarttags013f
REPORT OF INDEPENDENT REGISTERED
PUBLIC ACCOUNTING FIRM
To the Board of 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, 2009, in accordance with the standards of the Public Company
Accounting Oversight Board (United States), we
considered the Trusts internal control over financial reporting, including
controls over 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 Trusts 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 funds 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. A funds internal control over financial
reporting includes those policies and procedures that (1)
pertain to the maintenance of records that, in reasonable detail, accurately
 and fairly reflect the transactions and dispositions of
the assets of the fund; (2) provide reasonable assurance that transactions are
recorded as necessary to permit preparation of
financial statements in accordance with generally accepted accounting
principles, and that receipts and expenditures of the fund are
being made only in accordance with authorizations of management and trustees
 of the trust; and (3) provide reasonable assurance
regarding prevention or timely detection of unauthorized acquisition, use, or
disposition of a funds 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 deficiency in internal control over financial reporting 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
material weakness is a deficiency, or a combination of deficiencies, in
internal control over financial reporting, such that there is
a reasonable possibility that a material misstatement of the funds annual
or interim financial statements will not be prevented or
detected on a timely basis.

Our consideration of the Trusts 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 material weaknesses under standards
established by the Public Company Accounting Oversight Board. However, we noted
no deficiencies in the Trusts 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, 2009.
This report is intended solely for the information and use of management and
 the Board of 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 17, 2009

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77H CHNG CNTRL
<SEQUENCE>3
<FILENAME>h77.txt
<TEXT>
http://schemas.microsoft.com/office/word/2003/wordmlurn:schemas-
microsoft-com:office:smarttags013fSUB-ITEM
                                                   77H


As of October 31, 2009, the following entity no longer owns 25% or
more of the Funds voting securities
and was previously reported in error:

PERSON/ENTITY                               FUND

Cede & CityCo.                              MFM
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
