Tax Calendar & Deadlines
Never miss an important tax deadline. View key dates for filing, estimated payments, and extensions.
Individual Tax Deadlines
Individual Tax Returns Due
Deadline to file your 2025 federal income tax return or request an extension.
April 15, 2026
41
days
1
hrs
Extended Filing Deadline
Deadline for individual returns that received a 6-month extension.
October 15, 2026
224
days
1
hrs
Business Tax Deadlines
S-Corp & Partnership Returns Due
Deadline for S-Corporation (Form 1120-S) and Partnership (Form 1065) returns.
March 15, 2026
10
days
1
hrs
Estimated Tax Payments
Q1 Estimated Tax Payment
First quarter estimated tax payment due for self-employed individuals.
April 15, 2026
41
days
1
hrs
Q2 Estimated Tax Payment
Second quarter estimated tax payment due for tax year 2026.
June 15, 2026
102
days
1
hrs
Q3 Estimated Tax Payment
Third quarter estimated tax payment due for tax year 2026.
September 15, 2026
194
days
1
hrs
Q4 Estimated Tax Payment
Fourth quarter estimated tax payment due for tax year 2026.
January 15, 2027
316
days
1
hrs