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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

October 2025

2024

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

2026

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

28 September

Employment (Semi-weekly Employment Deposit)

Sales & Use (CDTFA-401-A)

Sales & Use (OS-114)

Corporate Income/Franchise (F-1120ES)

Employment (WH-1)

Sales & Use (ST-103)

Sales & Use (32-028)

Corporate Income/Franchise (IA 1120ES)

Pass-Through Income (Electronic Filing)

Corporate Income/Franchise (96-048)

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)

Sales & Use (TXR-01.01)

Sales & Use (Electronic Filing)

Employment (TC-941PC)

Sales & Use (Electronic Filing)

Employment (WT-6)

Sales & Use (ST-12)

Employment (WT-6)

Sales & Use (41)

Individual Income (1041)

Individual Income (41)

Individual Income (141AZ)

Individual Income (CT-1041)

Individual Income (501)

Individual Income (IA 1040ES)

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 (38)

Individual Income (IT-1041)

Individual Income (513)

Individual Income (513NR)

Individual Income (41)

Individual Income (PA-41)

Individual Income (RI-1041)

Individual Income (SC-1041)

Individual Income (FIT-161)

Individual Income (IT-141)

Individual Income (2)

Employment (Semi-weekly Employment Deposit)

Employment (Electronic Filing)

Employment (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)

Employment (WEEKLY)

Employment (Semi-weekly Employment Deposit)

Employment (910)

Employment (WEEKLY)

Employment (Semi-weekly Employment Deposit)

Employment (Electronic Filing)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (Electronic Filing)

Employment (KW-5)

Employment (K-1)

Employment (Semi-weekly Employment Deposit)

Individual Income (Statement)

Pass-Through Income (WTP10003)

Pass-Through Income (512-S)

Pass-Through Income (514)

Pass-Through Income (514, Part 1/514-PT)

Pass-Through Income (WTP10003)

Employment (WEEKLY)

Employment (DE 88/DE 88ALL)

Pass-Through Income (540NR)

Pass-Through Income (568)

Pass-Through Income (565)

Employment (MW-1)

Employment (Monthly Employment Deposit)

Corporate Income/Franchise (5471)

Corporate Income/Franchise (1120)

Employment (5500)

Employment (A-6)

Business And Occupation/Privilege (CPT)

Business And Occupation/Privilege (PPT)

Pass-Through Income (6900)

Pass-Through Income (6000)

Employment (A1-WP)

Pass-Through Income (140NR)

Employment (941M)

Pass-Through Income (AR1050)

Corporate Income/Franchise (AR1100CT)

Pass-Through Income (AR1100PET)

Employment (DR 1094)

Employment (Electronic Filing)

Employment (DR 1107)

Pass-Through Income (DR 106)

Pass-Through Income (DR-0107)

Employment (Electronic Deposit)

Employment (W1)

Corporate Income/Franchise (CIT-TAX)

Pass-Through Income (D-30)

Pass-Through Income (D-65)

Corporate Income/Franchise (D-20)

Employment (GA-V)

Employment (Semi-weekly Employment Deposit)

Individual Income (500)

Corporate Income/Franchise (600)

Pass-Through Income (IT-CR)

Employment (HW-14)

Employment (VP-1)

Corporate Income/Franchise (41)

Pass-Through Income (65)

Employment (IL-501)

Pass-Through Income (IL-1065)

Pass-Through Income (IT-65)

Pass-Through Income (IT-20S)

Employment (KW-5)

Pass-Through Income (K-120S)

Employment (K-1)

Pass-Through Income (725)

Pass-Through Income (PTE)

Pass-Through Income (740NP-WH)

Pass-Through Income (740-PTET)

Employment (L-1)

Employment (Semi-weekly Employment Deposit)

Sales & Use (Sales/Use I-File)

Pass-Through Income (1040C-ME)

Employment (MW-506)

Pass-Through Income (510)

Pass-Through Income (510C)

Pass-Through Income (511)

Corporate Income/Franchise (355)

Pass-Through Income (MA NRCR)

Pass-Through Income (807)

Corporate Income/Franchise (4913)

Employment (Withholding Deposit Payment)

Employment (89-105)

Corporate Income/Franchise (83-105)

Corporate Income/Franchise (MO-1120)

Pass-Through Income (MO-1120S)

Pass-Through Income (MO-1040)

Pass-Through Income (MO-1065)

Pass-Through Income (MO-PTE)

Pass-Through Income (1120-SN)

Corporate Income/Franchise (1120N)

Pass-Through Income (BT-Summary)

Pass-Through Income (NH-1065)

Pass-Through Income (BET)

Employment (Weekly Employment Deposit)

Pass-Through Income (CBT-100S)

Pass-Through Income (NJ-1080C)

Corporate Income/Franchise (CIT-1)

Pass-Through Income (IT-203-S)

Pass-Through Income (IT-203-GR)

Corporate Income/Franchise (CT-3)

Employment (NC-5)

Corporate Income/Franchise (CD-405)

Pass-Through Income (CD-401S)

Pass-Through Income (CD-403)

Pass-Through Income (D-403)

Pass-Through Income (CD-401S)

Employment (IT-501)

Employment (SD 101)

Pass-Through Income (UPC-1140ES)

Pass-Through Income (UPC-4738ES)

Employment (Semi-weekly Employment Deposit)

Employment (OTC)

Employment (Semi-weekly Employment Deposit)

Pass-Through Income (20-S)

Pass-Through Income (OC)

Employment (PA-501)

Employment (Semi-weekly Employment Deposit)

Pass-Through Income (PA-40 NRC)

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

Corporate Income/Franchise (RI-1120C)

Pass-Through Income (RI-1065)

Employment (WH-1601)

Employment (Semi-weekly Employment Deposit)

Pass-Through Income (SC1040)

Corporate Income/Franchise (SC1120)

Corporate Income/Franchise (TC-20)

Pass-Through Income (TC-20S)

Pass-Through Income (TC-20MC)

Pass-Through Income (BI-471)

Employment (Semi-weekly Employment Deposit)

Pass-Through Income (502)

Pass-Through Income (502PTET)

Employment (WV/IT-101V)

Pass-Through Income (IT-140NRC)

Corporate Income/Franchise (CIT-120)

Employment (WT-6)

Pass-Through Income (5S)

Pass-Through Income (1CNS)

Pass-Through Income (PW-1)

Individual Income (541)

Individual Income (540)

Individual Income (540NR)

Individual Income (1040)

Individual Income (5471)

Individual Income (40)

Individual Income (40NR)

Individual Income (140)

Individual Income (140PY)

Individual Income (140NR)

Pass-Through Income (AR1100S)

Individual Income (DR 104)

Individual Income (DR 105)

Individual Income (DR 104PN)

Individual Income (CT-1040)

Individual Income (CT-1040NR/PY)

Individual Income (PIT-RES)

Individual Income (PIT-NON)

Individual Income (FID-TAX)

Individual Income (D-41)

Individual Income (D-40)

Individual Income (40)

Individual Income (66)

Pass-Through Income (41S)

Individual Income (43)

Pass-Through Income (IL-1120-ST)

Individual Income (IL-1040)

Individual Income (IL-1041)

Individual Income (K-40)

Individual Income (740)

Individual Income (741)

Individual Income (740-NP)

Individual Income (1041ME)

Individual Income (1040ME)

Individual Income (502)

Individual Income (504)

Individual Income (505)

Individual Income (1)

Individual Income (2)

Individual Income (1-NR/PY)

Individual Income (MI-1040)

Individual Income (M1)

Individual Income (M2)

Individual Income (80-105)

Individual Income (80-205)

Individual Income (MO-1040)

Individual Income (2)

Individual Income (FID-3)

Individual Income (1040N)

Individual Income (1041N)

Individual Income (NJ-1040)

Individual Income (NJ-1040NR)

Individual Income (PIT-1)

Individual Income (IT-201)

Individual Income (IT-203)

Individual Income (D-400)

Individual Income (D-407)

Individual Income (ND-1)

Individual Income (IT-1040)

Individual Income (511)

Individual Income (513)

Individual Income (511NR)

Individual Income (513NR)

Individual Income (40)

Individual Income (40N)

Individual Income (40P)

Individual Income (PA-40)

Individual Income (RI-1040)

Individual Income (RI-1040NR)

Individual Income (SC1040)

Individual Income (TC-41)

Individual Income (TC-40)

Individual Income (IN-111)

Individual Income (E-file)

Individual Income (IT-140)

Individual Income (1)

Individual Income (1NPR)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly 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 (DR-100)

Sales & Use (FR-800M)

Sales & Use (FR-800A)

Employment (FR-900P)

Sales & Use (DR-15)

Sales & Use (ST-3)

Sales & Use (G-45)

Corporate Income/Franchise (N-30)

Pass-Through Income (N-35)

Pass-Through Income (N-20)

Pass-Through Income (N-66)

Corporate Income/Franchise (F-1)

Pass-Through Income (N-15)

Employment (910)

Sales & Use (850)

Employment (910)

Sales & Use (ST-1)

Employment (WH-1)

Sales & Use (ST-103)

Sales & Use (Electronic Filing)

Sales & Use (R-1029)

Sales & Use (SUT 202)

Sales & Use (5080)

Employment (5080)

Sales & Use (MN E-Services)

Sales & Use (72-010)

Sales & Use (72-110)

Sales & Use (72-010)

Sales & Use (72-110)

Sales & Use (10)

Sales & Use (ST-50)

Sales & Use (ST-809)

Sales & Use (E-500)

Employment (WTH10001)

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)

Employment (Semi-monthly Employment Deposit)

Employment (WEEKLY)

Sales & Use (RI-STR)

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

Sales & Use (RV11STRTN)

Sales & Use (SLS 450)

Sales & Use (01-114)

Sales & Use (01-117)

Sales & Use (ST-9)

Sales & Use (ST-8)

Sales & Use (WV CST-200 CU)

Sales & Use (ST-12)

Individual Income (N-40)

Individual Income (N-11)

Individual Income (N-15)

Employment (Semi-weekly Employment Deposit)

Employment (Electronic Filing)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Sales & Use (UUT-1)

Sales & Use (UST-1)

Sales & Use (UUT-1)

Employment (Semi-weekly Employment Deposit)

Employment (WH-1)

Employment (Electronic Filing)

Employment (KW-5)

Sales & Use (ST-36)

Sales & Use (CT-9U)

Employment (K-1)

Sales & Use (Electronic Filing)

Employment (UIA 1028)

Employment (TRD-41414)

Sales & Use (TRD-41413)

Employment (WEEKLY)

Sales & Use (RV11STRTN)

Employment (WHT-436)

Sales & Use (SUT-451)

Employment (WHT-436)

Employment (VA-5)

Sales & Use (E-file)

Business And Occupation/Privilege (E-file)

Employment (Semi-weekly Employment Deposit)

Employment (Electronic Filing)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Sales & Use (ST-103)

Corporate Income/Franchise (IA 1120)

Pass-Through Income (IA 1120S)

Pass-Through Income (IA 1065)

Corporate Income/Franchise (IA 1120F)

Sales & Use (ST-9)

Sales & Use (ST-9Q)

Sales & Use (Electronic Filing)

Employment (NJ-927)

Employment (NJ-927-W)

Pass-Through Income (WTR10002)

Individual Income (IT-41)

Employment (DE 9)

Employment (DE 88/DE 88ALL)

Employment (Semi-weekly Employment Deposit)

Employment (DE 9C)

Sales & Use (CDTFA-401-A)

Employment (Semi-weekly Employment Deposit)

Employment (Electronic Filing)

Employment (941)

Employment (FUTA)

Employment (Semi-weekly Employment Deposit)

Employment (A-1)

Employment (UC CR4)

Employment (TQ01C)

Employment (A1-QRT)

Employment (UC-018)

Employment (Semi-weekly Employment Deposit)

Employment (DWS-ARK-209 B/C)

Employment (DWS-ARK-209 BR/CR)

Employment (DWS-ARK-209 BS/CS)

Employment (DR 1094)

Employment (DR 1107)

Employment (Electronic Filing)

Employment (CT-941)

Employment (UC-5A/UC-2)

Sales & Use (OS-114)

Employment (WTH-TAX)

Employment (UC-8/8A)

Employment (DOES-UC30)

Employment (FR-900Q)

Employment (RT-6)

Employment (G-7)

Employment (Semi-weekly Employment Deposit)

Employment (DOL-4N)

Employment (UC-B6)

Employment (Semi-weekly Employment Deposit)

Employment (TAX 020)

Employment (910)

Employment (TAX 026)

Employment (IL-941)

Employment (UI-3/40)

Employment (Semi-weekly Employment Deposit)

Employment (UC-1)

Employment (UC-5)

Employment (Electronic Filing)

Pass-Through Income (Electronic Filing)

Sales & Use (32-028)

Employment (Electronic Filing)

Employment (K-CNS 100)

Employment (K-1)

Employment (EFILE)

Employment (L-1)

Employment (LWC-ES4)

Employment (Electronic Deposit)

Pass-Through Income (901ES-ME)

Employment (941ME)

Employment (ME UC-1)

Employment (Semi-weekly Employment Deposit)

Employment (DLLR/DUI 15-16)

Employment (M-941)

Employment (EFILE)

Pass-Through Income (MassTaxConnect)

Employment (Semi-weekly Employment Deposit)

Employment (Wage Detail Report)

Employment (Withholding Deposit Payment)

Employment (UI-2/3 R)

Employment (MO-941)

Sales & Use (53-1)

Employment (MODES-4)

Sales & Use (53-C)

Employment (941N)

Employment (UI 11T/UI 11W)

Employment (DES 200)

Employment (ES903A)

Employment (TRD-41414)

Employment (NYS-45)

Employment (NC-5Q)

Employment (NCUI 101)

Sales & Use (E-500)

Employment (Semi-weekly Employment Deposit)

Employment (NC-5)

Employment (306)

Sales & Use (Electronic Filing)

Employment (Electronic Filing)

Employment (IT-501)

Employment (Semi-weekly Employment Deposit)

Employment (SD 101)

Employment (E-FILE)

Employment (OES-3)

Pass-Through Income (WTP10005)

Employment (Semi-weekly Employment Deposit)

Employment (OQ)

Employment (Semi-weekly Employment Deposit)

Corporate Income/Franchise (OR-CAT-V)

Employment (W-3)

Employment (Semi-weekly Employment Deposit)

Employment (UCMANAGEMENTSYSTEM)

Employment (TX-17)

Employment (RI-941)

Sales & Use (RI-STR)

Employment (WH-1605)

Employment (Semi-weekly Employment Deposit)

Employment (Electronic Filing)

Employment (21)

Employment (LB-0851/LB-0456)

Employment (C-3)

Employment (TC-941PC)

Employment (TC-941E)

Employment (EFILE)

Sales & Use (Electronic Filing)

Employment (C-101)

Employment (Semi-weekly Employment Deposit)

Employment (VA-5)

Employment (VEC FC-20)

Employment (VA-16)

Employment (Semi-weekly Employment Deposit)

Employment (5208)

Sales & Use (E-file)

Business And Occupation/Privilege (E-file)

Employment (WV/IT-101Q)

Employment (WVUC-A-154/WVUC-A-154-A)

Employment (WT-6)

Employment (UCT-101-E)

Sales & Use (ST-12)

Employment (WT-6)

Sales & Use (41)

Employment (UI/WC)

Individual Income (IA 1040)

Individual Income (IA 1041)

1 November