Updated for tax year 2025. If you are married, you generally have two federal filing statuses to choose from: married filing jointly or married filing separately. Here are the facts on how each one works.
At a glance:
- Your legal marital status on the last day of the tax year sets your status for the whole year.
- In most cases, joint filers have a lower tax liability than couples filing separately.
- The 2025 standard deduction is $15,750 for married filing separately vs. $31,500 for married filing jointly.
- Filing separately limits or eliminates several tax breaks.
Your income tax filing options
Your legal marital status on the last day of the tax year dictates your marital status for the entire year for income tax purposes. If you were legally married on Dec. 31 of the tax year, you are considered married for that entire year, whether you got married in January or December.
Your tax filing status options as a married taxpayer are:
- Married filing jointly
- Married filing separately
- Married filing jointly on the federal tax return and married filing separately on the state return
Married filing jointly: advantages
Many tax advantages exist for married individuals who file joint returns. In most cases, joint filers have a lower tax liability than couples filing separately. They can also take advantage of higher income thresholds for specific tax deductions and tax credits, meaning you can earn more income and still qualify for those tax breaks.
Joint filers may qualify for several tax benefits that might not otherwise be available, such as:
- The Earned Income Tax Credit (some married filing separately couples can still claim this credit, but only if they meet specific special rules/separation requirements)
- Education credits like the American Opportunity Credit or the Lifetime Learning Credit
- Education deductions like the student loan interest deduction
- Exclusion or credit for expenses related to adoption
- The Child and Dependent Care Credit (such as daycare for a dependent child)
- Credits for the elderly or the disabled
Married filing jointly: disadvantages
Married filing jointly means each spouse is liable for all income tax obligations, including the complete income tax bill, any interest, and potential penalties. There are three types of relief from joint responsibility available:
- Innocent spouse relief allows a husband or wife to request absolution from paying extra taxes if their spouse improperly reported or entirely withheld items on the income tax return.
- Separation of liability grants separate tax liabilities to spouses who are legally separated if one spouse improperly reported items on a tax return. In that case, the other spouse is only liable for the amount of tax allocated to them.
- Equitable relief is sometimes granted if an item isn’t appropriately reported on a joint return and the spouses don’t qualify for innocent spouse relief or separation of liability. Individuals can also qualify for relief if the tax on a joint return wasn’t paid.
Married filing separately: advantages
In some situations, filing a separate return from your spouse makes sense. For example, if your combined adjusted gross income (AGI) is high and one of you has a lot of medical costs to claim, filing separately may help. The IRS only allows you to claim the cost of medical care that exceeds 7.5% of your AGI in 2025, and it can be tough to get over that amount with a high AGI. Filing a separate return might allow the person with the medical expenses to claim a bigger deduction.
Married filing separately: disadvantages
Filing separately from your spouse comes with a variety of tax consequences. You likely won’t have access to as many tax benefits and may be subject to higher tax brackets and tax rates than you would if you filed jointly. The standard deduction is also much lower: $15,750 for married filing separately in 2025 vs. $31,500 for joint filers.
Some tax breaks that might be affected when filing separately include:
- Separate filers cannot take the student loan interest deduction.
- Filing separately limits how much you can contribute to a Roth IRA.
- When you file separate returns, your capital loss deduction limit is generally $1,500, compared to $3,000 for joint filers.
As a separate filer, you’re also tied to how your spouse handles deductions. If your spouse itemizes deductions on their separate return, you must do the same. You cannot claim the standard deduction if your spouse chooses to itemize.
If you initially file separately but later decide it wasn’t the right choice, you can amend your return and change the filing status to married filing jointly. If you choose to file a joint return, however, you cannot file an amended return to change your filing status after the tax return due date.
Possible state implications
The filing requirements for each state vary. Check with your state to see if it requires you to use the same filing status on your state return as you use on your federal return.
FAQs
What determines my filing status if I’m married?
Your legal marital status on the last day of the tax year. If you were legally married on Dec. 31, you are considered married for the entire year for income tax purposes.
Is married filing jointly or separately better?
In most cases, joint filers have a lower tax liability than couples filing separately. Filing separately can make sense in specific situations, such as when one spouse has high medical expenses that exceed 7.5% of AGI.
What is the standard deduction for married filing separately vs. jointly?
For 2025, the standard deduction is $15,750 for married filing separately and $31,500 for married filing jointly.
Can I change my filing status after I file?
If you filed separately, you can amend your return to married filing jointly. If you filed jointly, you cannot amend to change your filing status after the tax return due date.
Do I have to use the same filing status on my state return?
It depends on your state. Filing requirements vary, so check whether your state requires the same filing status as your federal return.
This article is for informational purposes only and not legal or financial advice.
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