Special Services, Inc.

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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

February 2024

2023

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

2025

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

28 January

Employment (WEEKLY)

Employment (WH-1)

Sales & Use (ST-103)

Employment (NJ-927)

Employment (NJ-927-W)

Pass-Through Income (WTR10002)

Individual Income (IA 1040ES)

Employment (941)

Employment (943)

Employment (945)

Pass-Through Income (8308)

Corporate Income/Franchise (1098)

Employment (940)

Corporate Income/Franchise (Information Return)

Employment (Semi-weekly Employment Deposit)

Employment (FUTA)

Employment (8809)

Employment (W-2)

Corporate Income/Franchise (1098-E)

Corporate Income/Franchise (1098-T)

Corporate Income/Franchise (1099-NEC)

Employment (A-1)

Employment (UC CR4)

Employment (A-3)

Employment (TQ01C)

Employment (A1-QRT)

Employment (UC-018)

Employment (Semi-weekly Employment Deposit)

Employment (A1-R)

Employment (A1-APR)

Employment (DWS-ARK-209 B/C)

Employment (DWS-ARK-209 BR/CR)

Employment (DWS-ARK-209 BS/CS)

Employment (AR941A)

Employment (DE 88/DE 88ALL)

Employment (DE 9)

Employment (Semi-weekly Employment Deposit)

Employment (DE 9C)

Pass-Through Income (592-PTE)

Sales & Use (CDTFA-401-A)

Employment (DR 1094)

Employment (UITR-1)

Employment (Electronic Filing)

Employment (DR 1106)

Employment (DR 1093)

Employment (DR 1107)

Employment (CT-941)

Employment (UC-5A/UC-2)

Employment (Weekly Employment Deposit)

Sales & Use (OS-114)

Employment (CT-W3)

Employment (CT-1096)

Employment (CT-8809)

Employment (WTH-REC)

Employment (WTH-TAX)

Employment (UC-8/8A)

Employment (DOES-UC30)

Employment (FR-900Q)

Employment (FR-900NP)

Employment (FR-900A)

Employment (RT-6)

Employment (G-7)

Employment (Semi-weekly Employment Deposit)

Employment (G-1003)

Employment (DOL-4N)

Employment (UC-B6)

Employment (Semi-weekly Employment Deposit)

Employment (HW-30)

Employment (TAX 020)

Employment (910)

Employment (967)

Employment (TAX 026)

Employment (910)

Employment (IL-941)

Employment (UI-3/40)

Employment (Semi-weekly Employment Deposit)

Employment (WH-1)

Pass-Through Income (WH-1)

Employment (WH-3)

Employment (UC-1)

Employment (UC-5)

Employment (65-5300)

Employment (Electronic Filing)

Pass-Through Income (Electronic Filing)

Sales & Use (32-028)

Employment (K-CNS 100)

Employment (KW-3)

Employment (K-3)

Employment (EFILE)

Employment (L-1)

Employment (LWC-ES4)

Employment (Electronic Deposit)

Employment (L-3)

Pass-Through Income (901ES-ME)

Employment (941ME)

Employment (ME UC-1)

Employment (Semi-weekly Employment Deposit)

Employment (DLLR/DUI 15-16)

Employment (MW-508)

Employment (M-941)

Employment (M-3)

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 (89-140)

Employment (MO-941)

Sales & Use (53-1)

Employment (MO-941)

Employment (MODES-4)

Employment (MO W-3)

Sales & Use (53-C)

Employment (UI-5)

Employment (Semi-weekly Employment Deposit)

Employment (MW-3)

Employment (941N)

Employment (UI 11T/UI 11W)

Employment (W-3N)

Employment (NUCS-4072)

Sales & Use (TXR-01.01)

Business And Occupation/Privilege (TXR-020.01)

Employment (DES 200)

Employment (Weekly Employment Deposit)

Employment (ES903A)

Employment (RPD-41072)

Employment (NYS-45)

Employment (NC-5Q)

Employment (NC-5)

Employment (NCUI 101)

Sales & Use (E-500)

Employment (Semi-weekly Employment Deposit)

Employment (NC-3)

Employment (NC-5)

Employment (306)

Employment (SFN 41263)

Sales & Use (ST)

Employment (307)

Employment (IT-941)

Employment (IT-501)

Employment (Semi-weekly Employment Deposit)

Employment (IT 942)

Employment (SD 141)

Employment (SD 101)

Employment (E-FILE)

Employment (OES-3)

Pass-Through Income (WTP10005)

Employment (Semi-weekly Employment Deposit)

Employment (W-3)

Employment (OQ)

Employment (Semi-weekly Employment Deposit)

Employment (WR)

Corporate Income/Franchise (OR-CAT-V)

Employment (W-3)

Employment (PA-501)

Employment (REV-1667R)

Employment (Semi-weekly Employment Deposit)

Employment (UCMANAGEMENTSYSTEM)

Employment (TX-17)

Employment (RI-W3)

Employment (RI-941)

Sales & Use (RI-STR)

Employment (UCE-101/120)

Employment (Semi-weekly Employment Deposit)

Employment (WH-1606)

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 (WHT-434)

Employment (VA-5)

Employment (VEC FC-20)

Employment (VA-6)

Employment (VA-6H)

Employment (VA-16)

Employment (Semi-weekly Employment Deposit)

Business And Occupation/Privilege (Combined Excise Tax Return)

Employment (5208)

Sales & Use (E-file)

Employment (WV/IT-101A)

Employment (WV/IT-101Q)

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

Employment (WV/IT-103)

Employment (WT-7)

Employment (WT-6)

Employment (UCT-101-E)

Sales & Use (ST-12)

Employment (WT-6)

Sales & Use (41)

Sales & Use (42)

Employment (UI/WC)

Employment (Semi-weekly Employment Deposit)

Employment (910)

Sales & Use (MN E-Services)

Employment (Semi-monthly Employment Deposit)

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)

Individual Income (4070)

Individual Income (CAT Q)

Employment (943)

Employment (945)

Employment (940)

Employment (941)

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 (Electronic Filing)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (Monthly Employment Deposit)

Employment (W-4)

Employment (A-6)

Employment (A1-WP)

Employment (941M)

Employment (DE 88/DE 88ALL)

Employment (Semi-weekly Employment Deposit)

Employment (DR 1094)

Employment (DR 1107)

Employment (Electronic Deposit)

Employment (Weekly Employment Deposit)

Employment (W1)

Employment (GA-V)

Employment (VP-1)

Employment (IL-501)

Employment (Semi-weekly Employment Deposit)

Employment (Electronic Filing)

Employment (VSP)

Employment (KW-5)

Employment (K-1)

Employment (Electronic Deposit)

Sales & Use (Sales/Use I-File)

Employment (MW-506)

Employment (M-941)

Employment (Withholding Deposit Payment)

Employment (89-105)

Employment (MO-941)

Employment (MW-1)

Employment (501N)

Employment (NJ-500)

Employment (NJ-W-3)

Employment (NC-5)

Employment (IT-501)

Employment (SD 101)

Employment (OTC)

Employment (PA-501)

Employment (WH-1601)

Employment (WV/IT-101V)

Employment (WT-6)

Employment (Semi-weekly Employment Deposit)

Sales & Use (2100)

Sales & Use (2105)

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 (ST-9)

Sales & Use (ST-MAB-4)

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 (WTH10001)

Sales & Use (STS20002-A)

Sales & Use (SVU20005-A)

Sales & Use (STS20002-A)

Sales & Use (SVU20005-A)

Sales & Use (PA-3)

Employment (WEEKLY)

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)

Employment (Weekly Employment Deposit)

Employment (Semi-monthly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (Electronic Filing)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Sales & Use (UUT-1)

Sales & Use (UST-1)

Employment (Semi-weekly Employment Deposit)

Sales & Use (SUT-451)

Employment (WHT-430)

Employment (Semi-weekly Employment Deposit)

Employment (Electronic Filing)

Employment (KW-5)

Sales & Use (ST-36)

Sales & Use (51A103)

Employment (K-1)

Employment (TRD-41414)

Sales & Use (TRD-41413)

Employment (WEEKLY)

Sales & Use (RV11STRTN)

Employment (VA-5)

Business And Occupation/Privilege (Combined Excise Tax Return)

Sales & Use (E-file)

Corporate Income/Franchise (1098)

Individual Income (W-2G)

Employment (Semi-weekly Employment Deposit)

Corporate Income/Franchise (8809)

Individual Income (8809)

Corporate Income/Franchise (1099-MISC)

Employment (Semi-weekly Employment Deposit)

Employment (AR3MAR)

Employment (Semi-weekly Employment Deposit)

Sales & Use (CDTFA-401-A)

Employment (Electronic Filing)

Employment (Weekly Employment Deposit)

Sales & Use (OS-114)

Employment (Semi-weekly Employment Deposit)

Employment (W-3ME)

Employment (Semi-weekly Employment Deposit)

Sales & Use (5081)

Employment (5081)

Employment (Semi-weekly Employment Deposit)

Employment (89-140)

Employment (MO W-3)

Sales & Use (53-1)

Sales & Use (53-C)

Employment (Semi-weekly Employment Deposit)

Employment (Weekly Employment Deposit)

Employment (Semi-weekly Employment Deposit)

Employment (TC-941PC)

Employment (Semi-weekly Employment Deposit)

Sales & Use (41)

Sales & Use (32-028)

Employment (L-1V)

Employment (Electronic Deposit)

Sales & Use (TXR-01.01)

Sales & Use (ST)

Sales & Use (TC-62)

Employment (WT-6)

Sales & Use (ST-12)

Employment (WT-6)

1 March

Individual Income (1040)

Employment (Semi-weekly Employment Deposit)

Employment (W-2)

Employment (Semi-weekly Employment Deposit)

Corporate Income/Franchise (Corporation Franchise Tax Report)

Employment (Semi-weekly Employment Deposit)

Employment (WH-1)

Employment (Semi-weekly Employment Deposit)