Tax Filing Deadline: Key Dates and Extensions for 2024

A calendar marked with important tax filing dates and a pen resting on a tax form.

Key Tax Filing Dates for 2024

January Deadlines

  • January 16, 2024: Fourth Quarter 2023 estimated tax payment due
  • January 29, 2024: IRS begins accepting and processing 2023 tax returns
  • January 31, 2024: Deadline for employers to mail W-2 forms

Standard Filing Deadline

The standard tax filing deadline for individual returns (Form 1040) in 2024 is Monday, April 15. This date is significant for:

  • Individual tax returns due
  • First quarter 2024 estimated tax payment
  • Last day to contribute to IRAs for 2023
  • Last day to contribute to HSAs for 2023

State-Specific Exceptions

Some states have different deadlines due to local holidays:

  • Massachusetts and Maine: April 17, 2024 (due to Patriots' Day)
  • Washington, D.C.: April 17, 2024 (due to Emancipation Day)

Other Important Quarterly Dates

  • June 17, 2024: Second Quarter estimated tax payment due
  • September 16, 2024: Third Quarter estimated tax payment due
  • October 15, 2024: Extended individual tax returns due

Business Tax Deadlines

Business TypeStandard DeadlineExtended Deadline
S-CorpsMarch 15, 2024September 16, 2024
PartnershipsMarch 15, 2024September 16, 2024
C-CorpsApril 15, 2024October 15, 2024

Understanding Tax Extensions

How to File for an Extension

  • Form 4868: File this form for an automatic six-month extension to October 15, 2024
  • An extension to file is NOT an extension to pay
  • Check with your state tax agency regarding state-specific extensions

Special Extensions

Military Personnel

  • 180 days after returning from deployment
  • Additional time based on qualifying situations

Natural Disaster Areas

The IRS often provides extended deadlines for taxpayers affected by federally declared disasters. Check the IRS disaster relief page for updates.

Penalties and Consequences

Missing the filing deadline without an extension can result in:

  • Failure-to-file penalty: 5% of unpaid taxes per month
  • Failure-to-pay penalty: 0.5% of unpaid taxes per month
  • Interest charges on unpaid taxes

Tips for a Smooth Tax Season

  1. Organize your documents early
  2. Use tax preparation software or consult a professional
  3. Set calendar reminders for important dates
  4. File electronically for faster processing
  5. Keep copies of all tax documents for at least three years

Electronic Filing Options

The IRS encourages electronic filing through:

  • IRS Free File for eligible taxpayers
  • Commercial tax preparation software
  • Professional tax preparers
  • IRS e-file system

Additional Resources

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