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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001349556-06-000008.txt : 20060925
<SEC-HEADER>0001349556-06-000008.hdr.sgml : 20060925
<ACCEPTANCE-DATETIME>20060925115801
ACCESSION NUMBER:		0001349556-06-000008
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20060925
FILED AS OF DATE:		20060925
DATE AS OF CHANGE:		20060925

ISSUER:		

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

	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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hourihan Brian T
		CENTRAL INDEX KEY:			0001304546

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-04841
		FILM NUMBER:		061105930

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		800-343-2829

	MAIL ADDRESS:	
		STREET 1:		MFS INVESTMENT MANAGEMENT
		STREET 2:		500 BOYLSTON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-09-25</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0000801961</issuerCik>
        <issuerName>MFS MUNICIPAL INCOME TRUST</issuerName>
        <issuerTradingSymbol>MFM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001304546</rptOwnerCik>
            <rptOwnerName>Hourihan Brian T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>MFS INVESTMENT MANAGEMENT</rptOwnerStreet1>
            <rptOwnerStreet2>500 BOYLSTON STREET</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Assistant Secretary</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>Susan A. Pereira, By Power of Attorney</signatureName>
        <signatureDate>2006-09-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>poahourihan.txt
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
                                POWER OF ATTORNEY



     The  undersigned  on his or her  own  behalf  and on  behalf  of his or her
estate, heirs and assigns hereby constitutes and appoints Christopher R. Bohane,
James R. Bordewick, Jr., Jeffrey N. Carp, James F. DesMarais, Brian T. Hourihan,
Stephanie  A.  Molinari and Susan A. Pereira and each of them singly as true and
lawful attorneys with full power to them and each of them, to execute, on behalf
of the  undersigned,  in the capacity  listed below,  any and all  statements or
reports  under  Section 16 of the  Securities  Exchange Act of 1934, as amended,
with respect to the beneficial ownership of reportable  securities issued by MFS
Charter Income Trust,  MFS Government  Markets  Income Trust,  MFS  Intermediate
Income Trust,  MFS Multimarket  Income Trust, MFS Municipal Income Trust and MFS
Special Value Trust including,  without  limitation,  all initial  statements of
beneficial  ownership  on  Form 3,  all  statements  of  changes  of  beneficial
ownership on Form 4 and all annual statements of beneficial ownership on Form 5,
and any and all other  documents that may be required,  from time to time, to be
filed with the  Securities  and  Exchange  Commission,  to  execute  any and all
amendments or supplements to any such statements or forms, and to file the same,
with all exhibits thereto, and other documents in connection therewith, with the
Securities and Exchange  Commission,  granting to said attorney,  full power and
authority  to do so and  perform  each and  every act and  thing  requisite  and
necessary  to be done in and about the  premises,  as fully to all  intents  and
purposes as the undersigned  (or his or her estate,  heirs and assigns) might or
could do in person,  hereby  ratifying and confirming all that said attorneys or
any of them may lawfully do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has set his or her hand as of this ____
day of _____________, 2004.




BRIAN T. HOURIHAN
Brian T. Hourihan


</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
