<SEC-DOCUMENT>0001752724-23-084428-index.html : 20230424
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<ACCEPTANCE-DATETIME>20230424091641
ACCESSION NUMBER:		0001752724-23-084428
CONFORMED SUBMISSION TYPE:	NPORT-P
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20230228
FILED AS OF DATE:		20230424
DATE AS OF CHANGE:		20230424
PERIOD START:           	20231130

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MFS HIGH YIELD MUNICIPAL TRUST
		CENTRAL INDEX KEY:			0000809844
		IRS NUMBER:				042950868
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		NPORT-P
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-04992
		FILM NUMBER:		23838079

	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 MUNICIPAL INCOME TRUST
		DATE OF NAME CHANGE:	19920703
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Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

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<SEQUENCE>2
<FILENAME>img64e381f91.gif
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Document 2 - file: img64e381f91.gif

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<DOCUMENT>
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<SEQUENCE>3
<FILENAME>NPORT_523B_20194479_0223.htm
<TEXT>
Document 3 - file: NPORT_523B_20194479_0223.htm

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>imgdb3e62b22.gif
<TEXT>
Document 4 - file: imgdb3e62b22.gif

</DOCUMENT>
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