Mahoney, Fiorentino & Co., P.C.

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Events Calendar

The interactive calendar highlights federal and state tax due dates, special firm events and other important dates that may be of interest to you. The calendar is updated regularly, so check back often to keep track of filing requirements, deadlines, and other events that will help you stay current and up-to-date.

The calendar below shows important tax due dates and other events. Events have been categorized as Individual, Business and State tax due dates, as well as general Firm events. Hover over an event to view its details.

Business

Individual

Firm

State

April 2025

2024

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

2026

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

30 March

Corporate Income/Franchise (1098)

Corporate Income/Franchise (8809)

Individual Income (W-2G)

Corporate Income/Franchise (8809)

Individual Income (8809)

Corporate Income/Franchise (1099-MISC)

Sales & Use (ST-9)

Sales & Use (Electronic Filing)

Pass-Through Income (MassTaxConnect)

Sales & Use (OS-114)

Pass-Through Income (F-7004)

Pass-Through Income (F-1065)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (WEEKLY)

Employment (Semi-weekly Employment Deposit)

Employment (WEEKLY)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Individual Income (Statement)

Employment (Semi-weekly Employment Deposit)

Employment (WEEKLY)

Individual Income (1040)

Individual Income (1040-ES)

Individual Income (5471)

Individual Income (1041)

Individual Income (4868)

Individual Income (7004)

Individual Income (1041-ES)

Employment (Monthly Employment Deposit)

Employment (1042-S)

Corporate Income/Franchise (5471)

Corporate Income/Franchise (1120)

Corporate Income/Franchise (7004)

Corporate Income/Franchise (EFTPS)

Individual Income (2-ES)

Individual Income (M-8736)

Individual Income (2)

Individual Income (1-ES)

Individual Income (M-4868)

Individual Income (1)

Individual Income (1-NR/PY)

Pass-Through Income (MA NRCR)

Pass-Through Income (MassTaxConnect)

Corporate Income/Franchise (355)

Corporate Income/Franchise (355-7004)

Pass-Through Income (MassTaxConnect)

Sales & Use (Sales/Use I-File)

Corporate Income/Franchise (1120ES-ME)

Corporate Income/Franchise (1120EXT-ME)

Corporate Income/Franchise (1120ME)

Pass-Through Income (1040C-ME)

Pass-Through Income (1040C-ES-ME)

Pass-Through Income (RI 1040C-ES)

Corporate Income/Franchise (RI-1120C)

Pass-Through Income (RI-1065)

Pass-Through Income (BUS-EST)

Corporate Income/Franchise (BUS-EST)

Pass-Through Income (BUS-EST)

Corporate Income/Franchise (BUS-EXT)

Pass-Through Income (CT-2658)

Pass-Through Income (IT-2658)

Pass-Through Income (IT-370)

Pass-Through Income (IT-203-S)

Pass-Through Income (IT-203-GR)

Pass-Through Income (IT-2105)

Corporate Income/Franchise (CT-5)

Corporate Income/Franchise (CT-3)

Corporate Income/Franchise (NH-1120-ES)

Pass-Through Income (NH-1065-ES)

Pass-Through Income (BET)

Corporate Income/Franchise (BT-EXT)

Corporate Income/Franchise (BET)

Corporate Income/Franchise (BT-EXT)

Corporate Income/Franchise (NH-1120)

Corporate Income/Franchise (BT-Summary)

Pass-Through Income (DP-120)

Corporate Income/Franchise (CO-414)

Pass-Through Income (WH-435)

Corporate Income/Franchise (BA-403)

Corporate Income/Franchise (CO-411)

Corporate Income/Franchise (CBT-150)

Pass-Through Income (PART-200-T)

Pass-Through Income (NJ-1065)

Pass-Through Income (CBT-100S)

Pass-Through Income (CBT-150)

Pass-Through Income (CBT-200-T)

Pass-Through Income (NJ-630)

Pass-Through Income (NJ-1080C)

Pass-Through Income (NJ-1040-ES)

Pass-Through Income (NJ-CBT-1065)

Pass-Through Income (CBT-206)

Pass-Through Income (PTE-150)

Employment (Electronic Deposit)

Pass-Through Income (CT-PET ES)

Individual Income (1041ES-ME)

Individual Income (1041EXT-ME)

Individual Income (1041ME)

Individual Income (1040ES-ME)

Individual Income (1040ME)

Individual Income (1040EXT-ME)

Individual Income (IT-2106)

Individual Income (IT-370-PF)

Individual Income (IT-205)

Individual Income (IT-2105)

Individual Income (IT-370)

Individual Income (IT-201)

Individual Income (IT-203)

Individual Income (RI-1041ES)

Individual Income (RI-8736)

Individual Income (RI-1041)

Individual Income (RI-1040ES)

Individual Income (RI-4868)

Individual Income (RI-1040)

Individual Income (RI-1040NR)

Individual Income (NH-1041)

Individual Income (NH-1041-ES)

Individual Income (NH-1040-ES)

Individual Income (BT-EXT)

Individual Income (NH-1040)

Individual Income (DP-59-A)

Individual Income (DP-10)

Individual Income (BT-Summary)

Individual Income (CT-1041 EXT)

Individual Income (CT-1041)

Individual Income (CT-1040 ES)

Individual Income (CT-1040 EXT)

Individual Income (CT-1040)

Individual Income (CT-1041-ES)

Individual Income (CT-1040NR/PY)

Individual Income (NJ-1040-ES)

Individual Income (NJ-630)

Individual Income (NJ-1041)

Individual Income (NJ-1040-ES)

Individual Income (NJ-630)

Individual Income (NJ-1040)

Individual Income (NJ-1040NR)

Individual Income (IN-114)

Individual Income (IN-151)

Individual Income (IN-111)

Individual Income (FIT-161)

Individual Income (FIT-165)

Individual Income (FIT-168)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (WEEKLY)

Sales & Use (RI-STR)

Sales & Use (ST-809)

Sales & Use (DR-15)

Sales & Use (ST-50)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (WHT-436)

Sales & Use (SUT-451)

Employment (WHT-436)

Employment (WEEKLY)

Employment (FUTA)

Employment (941)

Employment (Semi-weekly Employment Deposit)

Employment (M-941)

Employment (EFILE)

Sales & Use (ST-9)

Sales & Use (ST-9Q)

Sales & Use (Electronic Filing)

Pass-Through Income (MassTaxConnect)

Pass-Through Income (901ES-ME)

Employment (941ME)

Employment (ME UC-1)

Employment (Semi-weekly Employment Deposit)

Employment (TX-17)

Employment (RI-941)

Sales & Use (RI-STR)

Employment (NYS-45)

Employment (RT-6)

Employment (DES 200)

Employment (C-101)

Employment (Semi-weekly Employment Deposit)

Employment (NJ-927)

Employment (Weekly Employment Deposit)

Employment (NJ-927-W)

Employment (CT-941)

Employment (UC-5A/UC-2)

Employment (Weekly Employment Deposit)

Sales & Use (OS-114)

1 May

Corporate Income/Franchise (F-7004)

Corporate Income/Franchise (F-1120)

Pass-Through Income (DP-9)

Employment (Semi-weekly Employment Deposit)