TAX CENTER

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

September 2025

2024

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

2026

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

31 August

Sales & Use (CDTFA-401-A)

Employment (WH-1)

Sales & Use (ST-103)

Employment (L-1V)

Employment (Electronic Deposit)

Sales & Use (ST-9)

Sales & Use (Electronic Filing)

Sales & Use (53-1)

Sales & Use (53-C)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (Semi-monthly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (KW-5)

Employment (K-1)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Individual Income (Statement)

Employment (Semi-weekly Employment Deposit)

Employment (Monthly Employment Deposit)

Employment (1042)

Pass-Through Income (5471)

Pass-Through Income (1065)

Pass-Through Income (8804)

Pass-Through Income (1120-S)

Corporate Income/Franchise (EFTPS)

Employment (A-6)

Corporate Income/Franchise (BIT-V)

Pass-Through Income (65)

Pass-Through Income (PTE-V)

Pass-Through Income (PTE-C)

Pass-Through Income (EPT)

Business And Occupation/Privilege (PPT)

Employment (A1-WP)

Pass-Through Income (165)

Pass-Through Income (120S)

Pass-Through Income (120/165ES)

Corporate Income/Franchise (120/165ES)

Employment (941M)

Corporate Income/Franchise (AR1100ESCT)

Pass-Through Income (AR1000CRES)

Pass-Through Income (AR1100ESPET)

Employment (DE 88/DE 88ALL)

Pass-Through Income (592)

Pass-Through Income (592-V)

Pass-Through Income (592-Q)

Corporate Income/Franchise (100-ES)

Pass-Through Income (540-ES)

Pass-Through Income (592-A)

Pass-Through Income (100S)

Corporate Income/Franchise (D-20ES)

Pass-Through Income (D-30ES)

Employment (GA-V)

Corporate Income/Franchise (602ES)

Pass-Through Income (600S)

Pass-Through Income (CR-ES)

Pass-Through Income (700)

Pass-Through Income (602ES)

Employment (IL-501)

Corporate Income/Franchise (IL-1120-V)

Pass-Through Income (IL-1120-ST-V)

Pass-Through Income (IL-1065-V)

Employment (KW-5)

Corporate Income/Franchise (K-120ES)

Pass-Through Income (K-120ES)

Employment (K-1)

Corporate Income/Franchise (720-ES)

Pass-Through Income (PTE)

Pass-Through Income (740NP-WH-ES)

Pass-Through Income (EFILE)

Pass-Through Income (740-PTET-ES)

Employment (Electronic Deposit)

Corporate Income/Franchise (CIFT-620ES)

Pass-Through Income (CIFT-620ES)

Sales & Use (Sales/Use I-File)

Corporate Income/Franchise (1120ES-ME)

Pass-Through Income (941P-ME)

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

Employment (M-941)

Corporate Income/Franchise (355-ES)

Pass-Through Income (355-ES)

Pass-Through Income (355S)

Pass-Through Income (MassTaxConnect)

Pass-Through Income (3)

Pass-Through Income (MassTaxConnect)

Pass-Through Income (63D-ELT)

Pass-Through Income (MTO)

Employment (Withholding Deposit Payment)

Pass-Through Income (M8)

Pass-Through Income (M3)

Pass-Through Income (Payment Voucher)

Corporate Income/Franchise (Payment Voucher)

Employment (89-105)

Corporate Income/Franchise (83-300)

Pass-Through Income (84-105)

Pass-Through Income (84-300)

Employment (MO-941)

Corporate Income/Franchise (MO-1120ES)

Pass-Through Income (MO-1040ES)

Corporate Income/Franchise (NH-1120-ES)

Pass-Through Income (NH-1065-ES)

Employment (NJ-500)

Corporate Income/Franchise (CBT-150)

Pass-Through Income (CBT-150)

Pass-Through Income (NJ-1065)

Pass-Through Income (NJ-1040-ES)

Pass-Through Income (NJ-CBT-1065)

Pass-Through Income (PTE-100)

Pass-Through Income (PTE-150)

Pass-Through Income (PTET)

Pass-Through Income (EFILE)

Corporate Income/Franchise (CT-400)

Pass-Through Income (IT-204)

Pass-Through Income (CT-3-S)

Pass-Through Income (CT-2658)

Pass-Through Income (IT-2658)

Pass-Through Income (IT-2105)

Pass-Through Income (CT-400)

Employment (NC-5)

Corporate Income/Franchise (CD-429)

Pass-Through Income (NC-429 PTE)

Pass-Through Income (NC-40 PTE)

Pass-Through Income (IT 4708)

Employment (IT-501)

Employment (SD 101)

Pass-Through Income (IT 4738)

Pass-Through Income (IT 1140)

Pass-Through Income (UPC-4708ES)

Corporate Income/Franchise (OW-8-ESC)

Pass-Through Income (OW-8-ESC)

Employment (PA-501)

Corporate Income/Franchise (REV-857)

Pass-Through Income (PA-20S/PA-65)

Employment (WH-1601)

Corporate Income/Franchise (SC1120-CDP)

Pass-Through Income (SC1120S)

Pass-Through Income (SC1065)

Pass-Through Income (SC1065ES)

Pass-Through Income (SC1120-CDP)

Corporate Income/Franchise (Electronic Filing)

Employment (WV/IT-101V)

Pass-Through Income (PTE-100)

Pass-Through Income (PTE-100ES)

Corporate Income/Franchise (WV/CIT-120ES)

Pass-Through Income (EPT-100)

Pass-Through Income (Electronic Filing)

Individual Income (1040-ES)

Individual Income (1041-ES)

Individual Income (40ES)

Pass-Through Income (20S)

Individual Income (140ES)

Individual Income (AR1000ES)

Individual Income (AR1002ES)

Individual Income (541-ES)

Individual Income (540-ES)

Individual Income (DR 104EP)

Individual Income (CT-1040 ES)

Individual Income (CT-1041-ES)

Individual Income (FID-EST)

Individual Income (PIT-EST)

Individual Income (500-ES)

Individual Income (IL-1040-ES)

Individual Income (ES-40)

Individual Income (K-40ES)

Individual Income (K-41ES)

Individual Income (740-ES)

Individual Income (IT-540ES)

Individual Income (1041ES-ME)

Individual Income (1040ES-ME)

Individual Income (MI-1041ES)

Individual Income (MI-1040ES)

Individual Income (Payment Voucher)

Individual Income (80-106)

Individual Income (MO-1040ES)

Individual Income (NJ-1040-ES)

Individual Income (FID-ES)

Individual Income (IT-2106)

Individual Income (IT-2105)

Individual Income (NC-40)

Individual Income (OW-8-ES)

Individual Income (PA-40ES/PA-40ESR (F/C))

Individual Income (PA-40ES(I)/PA-40ESR(I))

Individual Income (SC1041ES)

Individual Income (SC1040ES)

Individual Income (IT-140ES)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (Semi-monthly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Sales & Use (Electronic Filing)

Sales & Use (TPT-EZ)

Sales & Use (TPT-2)

Sales & Use (ET-1)

Sales & Use (FR-800M)

Employment (FR-900P)

Sales & Use (DR-15)

Sales & Use (ST-3)

Sales & Use (ST-1)

Employment (WH-1)

Sales & Use (ST-103)

Corporate Income/Franchise (IT-6)

Corporate Income/Franchise (E-6)

Pass-Through Income (IT-6WTH)

Sales & Use (51A102)

Sales & Use (R-1029)

Sales & Use (5080)

Employment (5080)

Sales & Use (MN E-Services)

Sales & Use (72-010)

Sales & Use (72-110)

Sales & Use (ST-51)

Sales & Use (ST-810)

Sales & Use (ST-100)

Sales & Use (E-500)

Employment (WTH10004)

Sales & Use (STS-20002-C)

Sales & Use (SVU-20005-B)

Sales & Use (STS-20002-C)

Sales & Use (SVU-20005-B)

Sales & Use (PA-3)

Sales & Use (ST-3/ST-389)

Sales & Use (SLS 450)

Sales & Use (01-114)

Sales & Use (01-117)

Sales & Use (WV CST-200 CU)

Sales & Use (UUT-1)

Sales & Use (UST-1)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (KW-5)

Sales & Use (ST-36)

Sales & Use (51A103)

Employment (K-1)

Employment (Semi-weekly Employment Deposit)

Sales & Use (CDTFA-401-A)

Corporate Income/Franchise (F-1120ES)

Employment (WH-1)

Sales & Use (ST-103)

Employment (L-1V)

Employment (Electronic Deposit)

Sales & Use (ST-9)

Sales & Use (Electronic Filing)

Pass-Through Income (MTO)

Sales & Use (53-1)

Sales & Use (53-C)

Individual Income (1041)

Individual Income (41)

Individual Income (141AZ)

Individual Income (CT-1041)

Individual Income (501)

Individual Income (K-41)

Individual Income (741)

Individual Income (MI-1041)

Individual Income (M2)

Individual Income (81-110)

Individual Income (MO-1041)

Individual Income (MO-NRF)

Individual Income (NJ-1041)

Individual Income (FID-1)

Individual Income (IT-205)

Individual Income (513)

Individual Income (513NR)

Individual Income (PA-41)

Individual Income (SC-1041)

Individual Income (IT-141)

1 October

Employment (Semi-weekly Employment Deposit)

Pass-Through Income (F-1065)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (Semi-monthly Employment Deposit)

Employment (Semi-weekly Employment Deposit)