Corcoran & Associates

Info 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

November 2025

2024

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

2026

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

26 October

Employment (WH-1)

Employment (Electronic Filing)

Employment (KW-5)

Sales & Use (ST-36)

Sales & Use (51A103)

Employment (K-1)

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)

Individual Income (AR1002F)

Individual Income (AR1002NR)

Individual Income (IT-41)

Individual Income (IA 1040)

Individual Income (IA 1041)

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)

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 (DE 9)

Employment (DE 88/DE 88ALL)

Employment (Semi-weekly Employment Deposit)

Employment (DE 9C)

Sales & Use (CDTFA-401-A)

Employment (DR 1094)

Employment (UITR-1)

Employment (DR 1107)

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 (Semi-weekly Employment Deposit)

Employment (Electronic Filing)

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 (IT 942)

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)

Sales & Use (TC-62)

Employment (TC-941PC)

Employment (TC-941E)

Employment (EFILE)

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 (760)

Individual Income (763)

Individual Income (760PY)

Individual Income (770)

Corporate Income/Franchise (F-1120)

Employment (NUCS-4072)

Sales & Use (TXR-01.01)

Business And Occupation/Privilege (TXR-020.01)

Employment (WEEKLY)

Pass-Through Income (765)

Employment (Semi-weekly Employment Deposit)

Employment (Electronic Filing)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (910)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (Semi-monthly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Individual Income (Statement)

Employment (941)

Individual Income (CAT Q)

Employment (Electronic Filing)

Employment (KW-5)

Employment (K-1)

Pass-Through Income (CAT Q)

Corporate Income/Franchise (CAT Q)

Employment (WEEKLY)

Employment (Electronic Filing)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Pass-Through Income (512-S)

Pass-Through Income (WTP10003)

Employment (Semi-weekly Employment Deposit)

Employment (Monthly Employment Deposit)

Individual Income (AR1000F)

Individual Income (AR1000NR)

Individual Income (AR1002F)

Individual Income (AR1002NR)

Individual Income (IT-40)

Individual Income (IT-40PNR)

Individual Income (IT-541)

Individual Income (IT-540)

Individual Income (IT-540B)

Individual Income (NH-1040)

Individual Income (NH-1041)

Employment (A-6)

Corporate Income/Franchise (20C)

Corporate Income/Franchise (6000)

Employment (A1-WP)

Corporate Income/Franchise (120)

Employment (941M)

Corporate Income/Franchise (AR1100CT)

Pass-Through Income (AR1000CR)

Employment (DE 88/DE 88ALL)

Corporate Income/Franchise (100)

Corporate Income/Franchise (100W)

Employment (DR 1094)

Employment (DR 1107)

Corporate Income/Franchise (DR 112)

Employment (Electronic Deposit)

Corporate Income/Franchise (CT-1120)

Employment (W1)

Employment (GA-V)

Employment (VP-1)

Employment (IL-501)

Corporate Income/Franchise (IL-1120)

Corporate Income/Franchise (IT-20)

Employment (Electronic Filing)

Employment (KW-5)

Corporate Income/Franchise (K-120)

Employment (K-1)

Corporate Income/Franchise (720)

Employment (Electronic Deposit)

Pass-Through Income (IT-565)

Corporate Income/Franchise (CIFT-620)

Sales & Use (Sales/Use I-File)

Corporate Income/Franchise (1120ME)

Employment (MW-506)

Corporate Income/Franchise (500)

Pass-Through Income (510)

Pass-Through Income (511)

Employment (M-941)

Employment (Withholding Deposit Payment)

Corporate Income/Franchise (M4)

Employment (89-105)

Employment (MO-941)

Employment (MW-1)

Corporate Income/Franchise (CIT)

Employment (501N)

Corporate Income/Franchise (1120N)

Individual Income (DP-10)

Corporate Income/Franchise (BET)

Corporate Income/Franchise (NH-1120)

Corporate Income/Franchise (BT-Summary)

Pass-Through Income (DP-120)

Employment (NJ-500)

Corporate Income/Franchise (CBT-100)

Employment (NC-5)

Corporate Income/Franchise (40)

Employment (IT-501)

Employment (SD 101)

Corporate Income/Franchise (512)

Employment (OTC)

Corporate Income/Franchise (20-INC)

Corporate Income/Franchise (20)

Employment (PA-501)

Corporate Income/Franchise (RCT-101)

Employment (WEEKLY)

Employment (WH-1601)

Corporate Income/Franchise (FAE 170)

Corporate Income/Franchise (05-158-A/05-158-B)

Corporate Income/Franchise (CO-411)

Corporate Income/Franchise (500)

Employment (WV/IT-101V)

Employment (WT-6)

Corporate Income/Franchise (4)

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 (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 (DR-100)

Sales & Use (FR-800M)

Employment (FR-900P)

Sales & Use (DR-15)

Sales & Use (ST-3)

Sales & Use (G-45)

Employment (910)

Sales & Use (850)

Employment (910)

Sales & Use (ST-1)

Employment (WH-1)

Sales & Use (ST-103)

Sales & Use (51A102)

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 (10)

Sales & Use (ST-51)

Sales & Use (ST-809)

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)

Employment (WTM/RI-941M)

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)

Employment (Semi-weekly Employment Deposit)

Sales & Use (UUT-1)

Sales & Use (UST-1)

Employment (WEEKLY)

Employment (Electronic Filing)

Employment (KW-5)

Sales & Use (ST-36)

Sales & Use (51A103)

Employment (K-1)

Employment (TRD-41414)

Sales & Use (TRD-41413)

Sales & Use (RV11STRTN)

Sales & Use (SUT-451)

Employment (WHT-430)

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)

1 December

Employment (Semi-weekly Employment Deposit)

Sales & Use (CDTFA-401-A)

Sales & Use (OS-114)

Employment (Semi-weekly Employment Deposit)

Employment (WH-1)

Sales & Use (ST-103)

Sales & Use (32-028)

Employment (L-1V)

Employment (Electronic Deposit)

Sales & Use (ST-9)

Sales & Use (Electronic Filing)

Employment (Semi-weekly Employment Deposit)

Sales & Use (53-1)

Sales & Use (53-C)

Employment (Semi-weekly Employment Deposit)

Sales & Use (TXR-01.01)

Employment (Semi-weekly Employment Deposit)

Sales & Use (Electronic Filing)

Employment (Semi-weekly Employment Deposit)

Employment (WEEKLY)

Employment (Semi-weekly Employment Deposit)

Employment (TC-941PC)

Sales & Use (TC-62)

Employment (Semi-weekly Employment Deposit)

Employment (WT-6)

Sales & Use (ST-12)

Employment (WT-6)

Sales & Use (41)

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 (Semi-monthly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (910)

Employment (Semi-weekly Employment Deposit)