Can I file as single?

You may file as single if you are considered unmarried at the end of the tax year and do not qualify for any other filing status, such as Head of Household or Qualifying Surviving Spouse. To be considered unmarried, you must not be legally married as of December 31 of the tax year. Additionally, if your spouse died before January 1 of the current tax year and you did not remarry before the end of the year, you may also file as single, though you may qualify for a lower tax by filing as a Qualifying Surviving Spouse or Head of Household if applicable.

How to File as Single

• On Form 1040 or 1040-SR, check the “Single” box on the Filing Status line near the top of the form.
• Use the “Single” column in the Tax Table or Section A of the Tax Computation Worksheet to calculate your tax.

When You May Not File as Single

• If you are married and your spouse lived with you for part of the year, you may not qualify for single status. However, if you meet the requirements for Head of Household (e.g., you paid more than half the cost of maintaining your home and your spouse did not live in your home for the last 6 months of the year), you may file as Head of Household instead.
• If your spouse died before January 1 of the tax year, you may still file as single, but you should consider whether Qualifying Surviving Spouse status (if applicable) would result in a lower tax.

Special Considerations

• Married individuals living apart may be able to file as if unmarried for certain credits (e.g., Premium Tax Credit) if they meet specific criteria under Head of Household or Married Filing Separately rules.
• Nonresident aliens who are married may file as single on Form 1040-NR if they meet certain conditions for married persons living apart.

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Disclaimer: Always verify your filing status and eligibility with the current IRS forms and instructions, including Form 1040, Form 1040-SR, and relevant IRS publications. For complex situations, consult a tax professional or attorney.