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Important Tax Due Dates

Stay compliant and avoid penalties with our comprehensive tax deadline calendar. Never miss a critical filing date again.

Official IRS Tax Calendar

Here is the IRS Online Tax Calendar where you can see federal tax deadlines for this month and future months:

Access IRS Tax Calendar

Key Upcoming Deadlines

Quarterly

Estimated Tax Payments

Q1 2025: April 15
Q2 2025: June 16
Q3 2025: September 15
Q4 2025: January 15, 2026
High Priority
Annual

Corporate Tax Returns

Form 1120: April 15
Form 1120S: March 15
Form 1065: March 15
Critical
Monthly

Payroll Tax Deposits

Semi-weekly: Wed/Fri
Monthly: 15th of month
Form 941: Quarterly
Recurring

Annual Tax Planning Calendar

Q1

January - March

  • • Year-end tax planning review
  • • Business structure optimization
  • • Estimated tax payments
  • • Partnership/S-Corp returns due
Q2

April - June

  • • Corporate tax returns due
  • • Individual tax returns due
  • • Q1 estimated payments
  • • Mid-year planning strategies
Q3

July - September

  • • Q2 estimated payments
  • • Business expense planning
  • • Retirement plan contributions
  • • Equipment purchase timing
Q4

October - December

  • • Q3 estimated payments
  • • Year-end tax strategies
  • • Income/deduction timing
  • • Next year planning

Need Professional Tax Planning?

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