Tax Calendar and Tax Due Dates

One way to save taxes is to avoid penalties and interest charges for failing to file a return or for filing it late.

Fiscal-year taxpayers. If you file your income tax return for a fiscal year rather than the calendar year, the filing dates may be different.

• General Tax Calendar

  • First Quarter
  • Second Quarter
  • Third Quarter
  • Fourth Quarter
  • Fiscal-Year Taxpayers
• Employer's Tax Calendar
  • First Quarter
  • During January
  • Second Quarter
  • Third Quarter
  • Fourth Quarter
• Excise Tax Calendar
  • First Quarter
  • Second Quarter
  • Third Quarter
  • Fourth Quarter
• How To Get Tax Help
  • Taxpayer Advocacy Panel (TAP).
  • Low Income Taxpayer Clinics (LITCs).

The Revenue Act provides penalty and interest if a taxpayer fails to pay a tax within the time specified.

Penalty is 5 percent of the total unpaid tax due for the first two months. After two months, 5% of the unpaid tax amount is assessed each month. The maximum late penalty is equal to 25% of the unpaid tax owed.

Interest is calculated by multiplying the current interest rate.