<SEC-DOCUMENT>0001193125-21-221676-index.html : 20210722
<SEC-HEADER>0001193125-21-221676.hdr.sgml : 20210722
<ACCEPTANCE-DATETIME>20210722132403
ACCESSION NUMBER:		0001193125-21-221676
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		16
CONFORMED PERIOD OF REPORT:	20210531
FILED AS OF DATE:		20210722
DATE AS OF CHANGE:		20210722
EFFECTIVENESS DATE:		20210722

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MFS HIGH INCOME MUNICIPAL TRUST
		CENTRAL INDEX KEY:			0000845606
		IRS NUMBER:				043039022
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05754
		FILM NUMBER:		211106955

	BUSINESS ADDRESS:	
		STREET 1:		111 HUNTINGTON AVENUE
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
		BUSINESS PHONE:		617-954-5000

	MAIL ADDRESS:	
		STREET 1:		111 HUNTINGTON AVENUE
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COLONIAL HIGH INCOME MUNICIPAL TRUST
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSRS
<SEQUENCE>1
<FILENAME>d126957dncsrs.htm
<DESCRIPTION>MFS HIGH INCOME MUNICIPAL TRUST N-CSRS
<TEXT>
Document 1 - file: d126957dncsrs.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>d126957dex99cert.htm
<DESCRIPTION>SECTION 302 CERTIFICATIONS
<TEXT>
Document 2 - file: d126957dex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>3
<FILENAME>d126957dex99906cert.htm
<DESCRIPTION>SECTION 906 CERTIFICATIONS
<TEXT>
Document 3 - file: d126957dex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.30E3 NOTICE
<SEQUENCE>4
<FILENAME>d126957dex9930e3notice.htm
<DESCRIPTION>30E3 NOTICE
<TEXT>
Document 4 - file: d126957dex9930e3notice.htm

</DOCUMENT>
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<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g126957g23u16.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g126957g23u16.jpg

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<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g126957g47v11.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g126957g47v11.jpg

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<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g126957g65x53.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g126957g65x53.jpg

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<SEQUENCE>8
<FILENAME>g126957g66n65.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g126957g66n65.jpg

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<DESCRIPTION>GRAPHIC
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Document 9 - file: g126957g96a30.jpg

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<TYPE>GRAPHIC
<SEQUENCE>10
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<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g126957img00c9ef7b3.jpg

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<TEXT>
Document 11 - file: g126957img102cfb6b1.gif

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<SEQUENCE>12
<FILENAME>g126957img347046ca6.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: g126957img347046ca6.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>g126957img6185e1685.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: g126957img6185e1685.jpg

</DOCUMENT>
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<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>g126957img801ca0382.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: g126957img801ca0382.gif

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<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>g126957img9068fa174.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: g126957img9068fa174.gif

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<SEQUENCE>16
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<TEXT>
Document 16 - file: g126957imgba8243067.gif

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