<SEC-DOCUMENT>0001683863-23-005493-index.html : 20230718
<SEC-HEADER>0001683863-23-005493.hdr.sgml : 20230718
<ACCEPTANCE-DATETIME>20230718114654
ACCESSION NUMBER:		0001683863-23-005493
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		11
CONFORMED PERIOD OF REPORT:	20230531
FILED AS OF DATE:		20230718
DATE AS OF CHANGE:		20230718
EFFECTIVENESS DATE:		20230718

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:		231093452

	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>f25871d1.htm
<DESCRIPTION>MFS HIGH INCOME MUNICIPAL TRUST NCSRS
<TEXT>
Document 1 - file: f25871d1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.302 CERT
<SEQUENCE>2
<FILENAME>f25871d2.htm
<DESCRIPTION>99.302CERT
<TEXT>
Document 2 - file: f25871d2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906 CERT
<SEQUENCE>3
<FILENAME>f25871d3.htm
<DESCRIPTION>99.906CERT
<TEXT>
Document 3 - file: f25871d3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.30E-3
<SEQUENCE>4
<FILENAME>f25871d4.htm
<DESCRIPTION>99.30E-3
<TEXT>
Document 4 - file: f25871d4.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>img0824fc743.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: img0824fc743.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>img4775fa2e1.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: img4775fa2e1.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>img6c8ce0984.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: img6c8ce0984.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>imge5e18c012.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: imge5e18c012.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>cxe-1btonotice5x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: cxe-1btonotice5x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>cxe-9930e32x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: cxe-9930e32x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>cxe-9930e33x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: cxe-9930e33x1.jpg

</DOCUMENT>
</SEC-DOCUMENT>