Q4 Estimated Tax Payment Due
Fourth quarter estimated tax payment for 2025 tax year
Form 1099 Distribution Deadline
Deadline to provide Form 1099 to recipients (adjusted from Jan 31, which falls on a Saturday)
Form W-2 Distribution
Deadline to provide W-2 forms to employees (adjusted from Jan 31, which falls on a Saturday)
Form 1099 Filing (Paper)
Deadline to file paper Form 1099 with the IRS (adjusted from Feb 28, which falls on a Saturday)
S-Corp & Partnership Tax Returns
Filing deadline for Form 1120S and Form 1065 for 2025 tax year (adjusted from Mar 15, which falls on a Sunday)
Form 1099 & W-2 E-Filing
Deadline to electronically file Form 1099 and Form W-2 with the IRS/SSA
Individual Tax Return Deadline
Filing deadline for Form 1040 (2025 tax year individual tax returns)
Q1 Estimated Tax Payment
First quarter estimated tax payment for 2026 tax year
C-Corporation Tax Returns
Filing deadline for Form 1120 (C-Corps) for 2025 tax year
Nonprofit Tax Returns
Filing deadline for Form 990 series for 2025 tax year
Q2 Estimated Tax Payment
Second quarter estimated tax payment for 2026 tax year
Q3 Estimated Tax Payment
Third quarter estimated tax payment for 2026 tax year
Extended S-Corp & Partnership Returns
Extended deadline for Form 1120S and Form 1065 for 2025 tax year
Extended Individual Tax Returns
Extended deadline for 2025 individual tax returns (with extension)
Extended C-Corporation Returns
Extended deadline for Form 1120 (C-Corps) for 2025 tax year
Q4 Estimated Tax Payment (2026)
Fourth quarter estimated tax payment for 2026 tax year (due January 2027)
Required Minimum Distributions (RMD)
Deadline for taking required distributions from retirement accounts
Recurring Monthly Deadlines
Payroll Tax Deposits
Monthly deposit deadline for payroll taxes (if semi-weekly depositor)
Sales Tax Filing
Monthly sales tax filing deadline (varies by state)
- •If a deadline falls on a weekend or federal holiday, it's typically moved to the next business day
- •Estimated tax payments are required if you expect to owe $1,000 or more in taxes
- •Payroll tax deposit schedules may vary based on your deposit schedule (monthly or semi-weekly)
- •State tax deadlines may differ from federal deadlines
- •Set reminders at least 2 weeks before each deadline to ensure timely filing
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