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Tax Due Dates

Individuals and/or businesses may have different tax deadlines.

For Individuals, Businesses and the Self-Employed, see IRS Publication 509 for information on the following:

For Tax Withholding and Estimated Taxes, see IRS Publication 505 for information on:

  • Withholding guidelines and tools for figuring withholding
  • Estimated tax payment due dates for both calendar year and fiscal year filers
  • Penalties for under-withholding
  • Back-up withholding
  • And more

For Maine Tax Withholding, see their publication

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