-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0000912938-10-000489.txt : 20101118
<SEC-HEADER>0000912938-10-000489.hdr.sgml : 20101118
<ACCEPTANCE-DATETIME>20101118162158
ACCESSION NUMBER:		0000912938-10-000489
CONFORMED SUBMISSION TYPE:	NSAR-B/A
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20091130
FILED AS OF DATE:		20101118
DATE AS OF CHANGE:		20101118
EFFECTIVENESS DATE:		20101118

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MFS INVESTMENT GRADE MUNICIPAL TRUST
		CENTRAL INDEX KEY:			0000847411
		IRS NUMBER:				043046360
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		NSAR-B/A
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05785
		FILM NUMBER:		101203052

	BUSINESS ADDRESS:	
		STREET 1:		500 BOYLSTON ST
		STREET 2:		20TH FL LEGAL DEPT
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		6179545000

	MAIL ADDRESS:	
		STREET 1:		500 BOYLSTON ST
		STREET 2:		20TH FL LEGAL DEPT.
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COLONIAL INVESTMENT GRADE MUNICIPAL TRUST
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>NSAR-B/A
<SEQUENCE>1
<FILENAME>answer2.fil
<TEXT>
<PAGE>      PAGE  1
000 B000000 11/30/2009
000 C000000 0000847411
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 Y
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 MFS Investment Grade Municipal Trust
001 B000000 811-5785
001 C000000 6179545000
002 A000000 500 Boylston St.
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
010 B000001 801-17352
010 C010001 BOSTON
010 C020001 MA
010 C030001 02116
012 A000001 COMPUTERSHARE TRUST COMPANY, N.A.
012 B000001 85-1134
012 C010001 PROVIDENCE
012 C020001 RI
012 C030001 02940
012 A000002 MFS SERVICE CENTER, INC.
012 B000002 84-1316
012 C010002 BOSTON
012 C020002 MA
012 C030002 02116
013 A000001 ERNST & YOUNG 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
015 E010003 X
018  000000 Y
019 A000000 N
019 B000000    0
021  000000        0
022 A000001 CITIGROUP, INC.
022 B000001 13-3187336
022 C000001      4410
022 D000001      4761
022 A000002 BANK OF NEW YORK CO., INC.
022 B000002 13-3878175
022 C000002      2451
022 D000002      2145
022 A000003 JPMORGAN CHASE & CO.
022 B000003 13-3224017
022 C000003      2841
022 D000003      1406
022 A000004 MORGAN STANLEY
022 B000004 13-2655998
022 C000004      3685
022 D000004       378
022 A000005 GOLDMAN SACHS GROUP, INC.
022 B000005 13-5108880
022 C000005      2570
022 D000005       221
022 A000006 PIPER JAFFRAY & CO.
022 B000006 41-0953246
022 C000006       230
022 D000006      1633
022 A000007 MERRILL LYNCH & CO., INC.
022 B000007 13-5674085
022 C000007      1129
022 D000007       697
022 A000008 ROYAL BANK OF CANADA FINANCIAL GROUP
022 B000008 00-0000000
022 C000008       208
022 D000008      1419
<PAGE>      PAGE  3
022 A000009 HUTCHINSON, SHOCKEY, ERLEY & CO.
022 C000009         0
022 D000009      5257
022 A000010 BARCLAYS PLC
022 C000010      2633
022 D000010         0
023 C000000      45442
023 D000000      43597
024  000000 N
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<PAGE>      PAGE  4
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<PAGE>      PAGE  5
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<PAGE>      PAGE  6
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<PAGE>      PAGE  8
074 V010000     9.35
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074 W000000   0.0000
074 X000000      696
074 Y000000      366
075 A000000        0
075 B000000   148123
076  000000     9.08
077 A000000 Y
077 B000000 Y
077 H000000 Y
077 Q010000 Y
078  000000 N
080 A000000 ICI MUTUAL/CHUBB (co-surety)
080 B000000 Zurich
080 C000000    53000
081 A000000 Y
081 B000000 135
082 A000000 N
082 B000000        0
083 A000000 N
083 B000000        0
084 A000000 N
084 B000000        0
085 A000000 Y
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086 A010000      0
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086 D010000      0
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087 A010000 MFS Investment Grade Municipal Trust
087 A020000 59318B108
087 A030000 CXH
088 A000000 N
088 B000000 N
088 C000000 N
088 D000000 Y
SIGNATURE   ELLEN MOYNIHAN
TITLE       ASSISTANT TREASURER

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77H CHNG CNTRL
<SEQUENCE>2
<FILENAME>h77.txt
<TEXT>
 SUB-ITEM 77H

As of November 30, 2009, the following  entity no longer owns 25% or more of the
Fund's voting securities and was previously reported in error:

- --------------------------------------------------- ----------------------------
PERSON/ENTITY                                       FUND
- --------------------------------------------------- ----------------------------
- --------------------------------------------------- ----------------------------
Cede & Co.                                          CXH
- --------------------------------------------------- ----------------------------


</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77B ACCT LTTR
<SEQUENCE>3
<FILENAME>b77_revised.txt
<TEXT>


             Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Trustees of
MFS Investment Grade Municipal Trust

In  planning  and  performing  our  audit  of the  financial  statements  of MFS
Investment  Grade  Municipal  Trust  (the  Fund)  as of and for the  year  ended
November 30,  2009,  in  accordance  with the  standards  of the Public  Company
Accounting  Oversight Board (United  States),  we considered the Fund's 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 Fund's  internal  control over  financial  reporting.
Accordingly, we express no such opinion.

The  management of the Fund 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 company's  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 company's  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  company;  (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 company are
being made only in accordance with authorizations of management and directors of
the company; and (3) provide reasonable assurance regarding prevention or timely
detection of unauthorized acquisition,  use or disposition of a company's 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
company's  annual or  interim  financial  statements  will not be  prevented  or
detected on a timely basis.

Our  consideration of the Fund's 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 (United States). However, we noted no deficiencies in the Fund's
internal control over financial reporting and its operation,  including controls
over  safeguarding  securities,  that we consider  to be a material  weakness as
defined above as of November 30, 2009.

This report is intended solely for the information and use of management and the
Board of Trustees of MFS Investment Grade Municipal 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.

Ernst & Young LLP
Boston, Massachusetts
January 15, 2010
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77Q1 OTHR EXHB
<SEQUENCE>4
<FILENAME>q771.txt
<TEXT>
              http://schemas.microsoft.com/office/word/2003/wordml2450Amendment
Exhibit - Ex. 99.77Q1

The MFS  Series  CXH N-SAR B,  dated  11/30/09,  has been  amended  to correct a
formatting  issue with the Report of Independent  Registered  Public  Accounting
Form.
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
