X0102 24F-2NT LIVE 751656 XXXXXXXX false N-1A MFS Municipal Series Trust 111 Huntington Avenue Boston MA X1 02199 MFS ALABAMA MUNICIPAL BOND FUND S000002521 A C000006957 B C000006958 I C000169758 R6 C000194226 MFS NEW YORK MUNICIPAL BOND FUND S000002522 A C000006959 B C000006960 C C000006961 I C000169759 R6 C000194228 MFS NORTH CAROLINA MUNICIPAL BOND FUND S000002523 A C000006962 B C000006963 C C000006964 I C000169760 R6 C000194230 MFS PENNSYLVANIA MUNICIPAL BOND FUND S000002524 A C000006965 B C000006966 I C000169761 R6 C000194232 MFS SOUTH CAROLINA MUNICIPAL BOND FUND S000002525 A C000006967 B C000006968 I C000169762 R6 C000194234 MFS VIRGINIA MUNICIPAL BOND FUND S000002527 A C000006971 B C000006972 C C000006973 I C000169764 R6 C000194238 MFS WEST VIRGINIA MUNICIPAL BOND FUND S000002528 A C000006974 B C000006975 I C000169765 R6 C000194240 MFS ARKANSAS MUNICIPAL BOND FUND S000002529 A C000006976 B C000006977 I C000169766 R6 C000194242 MFS CALIFORNIA MUNICIPAL BOND FUND S000002530 A C000006978 B C000006979 C C000006980 I C000169767 R6 C000194244 MFS GEORGIA MUNICIPAL BOND FUND S000002532 A C000006983 B C000006984 I C000169768 R6 C000194246 MFS MARYLAND MUNICIPAL BOND FUND S000002533 A C000006985 B C000006986 I C000169769 R6 C000194249 MFS MASSACHUSETTS MUNICIPAL BOND FUND S000002534 A C000006987 B C000006988 I C000169770 R6 C000194250 MFS MISSISSIPPI MUNICIPAL BOND FUND S000002535 A C000006989 B C000006990 I C000169771 R6 C000194252 MFS MUNICIPAL INCOME FUND S000002536 A C000006991 B C000006992 C C000006993 A1 C000042676 B1 C000042677 I C000105400 R6 C000194254 MFS MUNICIPAL INTERMEDIATE FUND S000071695 Class C C000227169 Class A C000227170 Class I C000227171 Class R6 C000227172 811-4096 002-92915 03/31/2026 false false 4283571153.00 2805097739.00 0.00 2805097739.00 1478473414.00 0.00 0.0001381 204177.18 0 204177.18 David L. DiLorenzo David L. DiLorenzo President 06/15/2026