What is a joint tax return?
James Craig
Published Mar 20, 2026
A joint return is a tax return filed with the Internal Revenue Service (IRS) on the new, simplified Form 1040 (as of 2018) by two married taxpayers whose filing status is married filing jointly (MFJ) or by a widowed taxpayer whose filing status is Qualifying Widow or Widower (QW).
Who can file a joint tax return?
Married filing jointly is an income tax filing status available to any couple that has wed as of Dec. 31 of the tax year. It is best used by couples that have one spouse who earns significantly more money than the other.
How does a joint tax return work?
Married filing jointly (MFJ): To file jointly means you file a single return, which will include the income and deductions for both spouses. Married filing separately (MFS): Each person files their own return, keeping incomes and deductions separate.
What’s the difference between a separate return and a joint return?
A separate return is an annual tax form filed by a married taxpayer who is not filing jointly. It is one of five filing options for federal tax filers.
What is the definition of a joint tax return?
A joint return is a tax return filed with the Internal Revenue Service (IRS) on the new, simplified Form 1040 (as of 2018) by two married taxpayers whose filing status is married filing jointly…
Is it better to file a joint or separate tax return?
Filing separately may result in less tax if both spouses earn the same income and if one or both have medical expenses, casualty losses, or miscellaneous deductions since joint and separate tax rates are likely to be the same and since adjusted gross income floors will be lower.
Do you have to be married to file a joint return?
To file a joint return, the taxpayers’ filing status must be either Married Filing Jointly (MFJ) or Qualifying Widow/er (QW). To be eligible for the married filing jointly (MFJ) filing status, the taxpayers must be legally married to each other on or before the last day of the tax year and both must agree to file and must sign the Joint Return.