George W. Colburn, CPA
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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
Previous Month Next Month March 2024
2023 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2025
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
25 February
26
27
28
Corporate Income/Franchise (1098)
Individual Income (W-2G)
Employment (Semi-weekly Employment Deposit)
Corporate Income/Franchise (8809)
Corporate Income/Franchise (8809)
Individual Income (8809)
Corporate Income/Franchise (1099-MISC)
Employment (Semi-weekly Employment Deposit)
Employment (W-3ME)
Employment (Semi-weekly Employment Deposit)
29
1
Individual Income (1040)
Employment (Semi-weekly Employment Deposit)
Employment (W-2)
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
2
3
4
5
6
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
7
Employment (Semi-weekly Employment Deposit)
8
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
9
10
11
Individual Income (4070)
12
13
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
14
15
Employment (Monthly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
Employment (1042)
Employment (1042-S)
Employment (7004)
Employment (8809)
Pass-Through Income (2553)
Pass-Through Income (5471)
Pass-Through Income (1065)
Pass-Through Income (7004)
Pass-Through Income (7004)
Pass-Through Income (8804)
Pass-Through Income (7004)
Pass-Through Income (1120-S)
Pass-Through Income (NH-1065)
Pass-Through Income (BT-EXT)
Pass-Through Income (BT-Summary)
Pass-Through Income (BET)
Employment (M-941)
Corporate Income/Franchise (355-ES)
Pass-Through Income (355-ES)
Pass-Through Income (355-7004)
Pass-Through Income (355S)
Pass-Through Income (3)
Pass-Through Income (63D-ELT)
Pass-Through Income (M-63D-EXT)
Employment (Semi-weekly Employment Deposit)
Pass-Through Income (BA-403)
Pass-Through Income (BI-471)
Pass-Through Income (BI-471)
Pass-Through Income (BA-403)
Pass-Through Income (BA-403)
Pass-Through Income (BI-471)
Pass-Through Income (BA-403)
Pass-Through Income (BI-471)
Employment (Semi-weekly Employment Deposit)
Sales & Use (Sales/Use I-File)
Pass-Through Income (941P-ME)
16
17
18
19
20
Employment (Semi-weekly Employment Deposit)
Sales & Use (ST-9)
Sales & Use (ST-MAB-4)
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
21
22
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
23
24
25
Sales & Use (SUT-451)
Employment (WHT-430)
26
27
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
28
29
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
30
31
1 April
Corporate Income/Franchise (1098)
Corporate Income/Franchise (8809)
Individual Income (W-2G)
Corporate Income/Franchise (8809)
Individual Income (8809)
Corporate Income/Franchise (1099-MISC)
Pass-Through Income (MassTaxConnect)
2
3
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
4
5
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
Employment (Semi-weekly Employment Deposit)
6
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