2026 Tax Deadlines Calendar

A month-by-month overview of key federal filing and payment dates.

January

Sun

Mon

Tue

Wed

Thu

Fri

Sat

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Q4 2025 Est. Tax Due

16

17

18

19

20

21

22

23

24

25

26

27

IRS E-File Opens

28

29

30

31

W-2/1099s Due