Stay ahead of key federal tax deadlines for individuals and businesses. Use this calendar as a quick reference—and reach out if you’d like us to help you stay compliant and avoid late fees.
Deadlines can shift when due dates fall on weekends or federal holidays. This calendar reflects typical IRS due dates. For your specific filing requirements (S-Corp, Partnership, Payroll, Sales Tax, etc.), contact us for a tailored compliance schedule.
Estimated Taxes (Quarterly)
Who this is for: self-employed, investors, contractors, and business owners who don’t have enough withholding.
- Q1: Typically due April 15
- Q2: Typically due June 15
- Q3: Typically due September 15
- Q4: Typically due January 15 (following year)
Individuals (Form 1040)
- Tax Return Due: Typically April 15
- Extension Due (Form 4868): Typically April 15 (extension to file, not to pay)
- Extended Return Due: Typically October 15
Reminder: If you extend, you should still pay your estimated balance by April to reduce penalties and interest.
Business Returns
Partnerships & Multi-Member LLCs (Form 1065)
- Return Due: Typically March 15
- Extension Due: Typically March 15
- Extended Return Due: Typically September 15
S Corporations (Form 1120-S)
- Return Due: Typically March 15
- Extension Due: Typically March 15
- Extended Return Due: Typically September 15
C Corporations (Form 1120)
- Return Due: Typically April 15 (calendar-year corporations)
- Extension Due: Typically April 15
- Extended Return Due: Typically October 15
Payroll & Employment Tax Deadlines
Quarterly Payroll Returns (Form 941)
Typically due:
- April 30 (Q1)
- July 31 (Q2)
- October 31 (Q3)
- January 31 (Q4)
Annual Federal Unemployment (FUTA – Form 940)
- Typically due January 31
W-2s and 1099s
- W-2s to employees + filed with SSA: Typically January 31
- 1099-NEC to contractors + filed with IRS: Typically January 31
- 1099-MISC (if applicable): Typically January 31 (recipient; some IRS filing timelines vary by method)
Sales Tax & State Deadlines
Sales tax due dates vary by state and filing frequency (monthly/quarterly/annual). If you’re unsure of your filing schedule, we can confirm your requirement and set up reminders.
Common filing frequencies:
- Monthly
- Quarterly
- Annual