X0101 EFFECT 33 LIVE 2010-11-19 0001193125-10-264836 485APOS 0000737800 LORD ABBETT MUNICIPAL INCOME FUND INC 002-88912 S000031145 Lord Abbett High Yield Municipal Bond Fund C000096621 Class A S000031145 Lord Abbett High Yield Municipal Bond Fund C000096622 Class B S000031145 Lord Abbett High Yield Municipal Bond Fund C000096623 Class C S000031145 Lord Abbett High Yield Municipal Bond Fund C000096624 Class F S000031145 Lord Abbett High Yield Municipal Bond Fund C000096625 Class I S000031145 Lord Abbett High Yield Municipal Bond Fund C000096626 Class P S000031146 Lord Abbett Intermediate Tax Free Fund C000096627 Class F S000031146 Lord Abbett Intermediate Tax Free Fund C000096628 Class I S000031146 Lord Abbett Intermediate Tax Free Fund C000096629 Class P S000031146 Lord Abbett Intermediate Tax Free Fund C000096630 Class A S000031146 Lord Abbett Intermediate Tax Free Fund C000096631 Class B S000031146 Lord Abbett Intermediate Tax Free Fund C000096632 Class C S000031147 Lord Abbett Short Duration Tax Free Fund C000096633 Class A S000031147 Lord Abbett Short Duration Tax Free Fund C000096634 Class B S000031147 Lord Abbett Short Duration Tax Free Fund C000096635 Class C S000031147 Lord Abbett Short Duration Tax Free Fund C000096636 Class F S000031147 Lord Abbett Short Duration Tax Free Fund C000096637 Class I