Do You Get More Back Filing Married or Single?

In most cases, you get more back filing as married than as single, because a couple filing jointly gets a standard deduction twice the size of a single filer’s and wider tax brackets that shield more income at lower rates. The advantage is largest when one spouse earns most of the household income, and it can flip into a penalty when both spouses earn high incomes or when marriage pushes a household past income limits for certain credits.

Why Joint Filing Usually Produces a Bigger Refund

Two things drive the joint-filing advantage: the standard deduction and the tax brackets.

For the 2026 tax year, the standard deduction is $16,100 for a single filer and $32,200 for a married couple filing jointly.¹ The joint amount is exactly double, so a married couple shields twice as much income before any tax rate applies. A couple with $80,000 in combined income pays tax on $47,800 after the joint deduction. A single filer earning the same $80,000 pays tax on $63,900.

The bracket structure works the same way through the middle of the income scale. For 2026, the 10%, 12%, 22%, and 24% joint thresholds are exactly double the single thresholds.¹ The 22% bracket, for example, runs to $105,700 for a single filer and to $211,400 for joint filers. If one spouse earns $150,000 and the other earns nothing, all of that income falls inside brackets that would have pushed a single filer into higher rates. This is the marriage bonus, and it grows with the gap between the two spouses’ earnings.

The Extra Deduction at 65

Taxpayers age 65 or older can claim an additional $6,000 deduction for tax years 2025 through 2028, on top of the regular standard deduction.² A couple where both spouses qualify can add $12,000, bringing their combined standard deduction to $44,200 if their income falls below the phase-out ($150,000 for joint filers, $75,000 for single). That’s another way joint filing pulls ahead for older couples.

When Filing Married Costs You Money

The joint-filing advantage narrows and can reverse in a few specific situations.

Two High Earners

Starting at the 32% bracket, joint thresholds stop being double the single thresholds. The 37% rate begins at $640,600 for a single filer and at $768,700 for joint filers, far short of $1,281,200.¹ Two spouses each earning above roughly $250,000 can push the household into the 35% or 37% bracket sooner than either would filing as single, and the total tax bill ends up higher.

The Earned Income Tax Credit

For lower-income couples, the Earned Income Tax Credit is where marriage can quietly cost real money. The joint income limits are only about $7,000 to $7,300 higher than the single limits, not double.³ Approximate 2026 caps:

No children: $19,540 single / $26,820 joint
One child: $51,593 single / $58,863 joint
Two children: $58,629 single / $65,899 joint
Three or more children: $62,974 single / $70,224 joint

A second spouse’s income can push the household over the limit and wipe out a credit one partner would have received alone.

Social Security Benefits

Retired couples face another squeeze. The IRS uses “combined income” (adjusted gross income plus nontaxable interest plus half of your Social Security benefits) to decide how much of a benefit is taxable. Up to 50% becomes taxable once combined income exceeds $25,000 single or $32,000 joint, and up to 85% becomes taxable above $34,000 single or $44,000 joint.⁴ The joint thresholds are not double, and they have never been adjusted for inflation since being set in the 1980s and 1990s. Two unmarried retirees each with $24,000 in combined income owe no tax on their benefits. Marry them, and the $48,000 combined figure clears the $44,000 joint line, putting up to 85% of their benefits into taxable territory.

Where Marriage Is Neutral

Not every credit works this way. The Child Tax Credit, worth up to $2,200 per qualifying child under 17, phases out at $200,000 for single filers and $400,000 for joint filers, a true doubling.⁵ Marriage rarely causes a couple to lose it.

The home sale exclusion also rewards joint filers. A single filer can exclude up to $250,000 of gain on a primary residence; a joint filer can exclude up to $500,000, provided both spouses meet the two-year use requirement.⁶ On a house with heavy appreciation, that gap alone can save tens of thousands.

Married Filing Separately Is Not the Same as Single

Once you’re married, “single” is off the table. Your two choices are joint or separate. Filing separately keeps the $16,100 standard deduction of a single filer but strips away several benefits:

The Earned Income Tax Credit is generally unavailable, with limited exceptions for spouses who lived apart.⁷
The child and dependent care credit is also unavailable in most cases.⁷
The student loan interest deduction is disallowed entirely.⁸
If one spouse itemizes, the other must itemize too. Neither can take the standard deduction.

Married couples who file separately and lived together at any point during the year face a particularly harsh Social Security rule: their taxable-benefits threshold drops to zero, meaning benefits can be taxed from the first dollar.⁴

Separate filing still pays off in narrow cases. The most common is heavy medical bills for one spouse. Medical expenses are only deductible above 7.5% of adjusted gross income, and a lower individual AGI on a separate return makes that floor easier to clear.⁹ Some borrowers on income-driven student loan repayment plans also file separately to keep the reported income (and monthly payment) lower. If either situation applies to you, run the numbers both ways before filing.

If You’re a Single Parent, Look at Head of Household

Comparing “married” to “single” isn’t always the right comparison. If you’re unmarried with a dependent, head of household usually gives you a better result than single. The 2026 standard deduction for head of household is $24,150, about $8,050 more than single, and the brackets are wider too.¹

You generally qualify if you meet three tests:¹⁰

You’re unmarried on December 31, or considered unmarried because you lived apart from your spouse for the last six months of the year and meet the other rules.
You paid more than half the cost of keeping up your home (rent or mortgage, utilities, insurance, repairs, food eaten at home).
You have a qualifying dependent. A qualifying child or relative generally has to live with you more than half the year; a dependent parent doesn’t.

Head of household narrows the gap with joint filers, but it doesn’t close it entirely.

Fix Your Withholding or the Math Won’t Show Up in Your Refund

Whatever the underlying math says about your filing status, your refund is just the difference between what your employer withheld and what you actually owe. If your W-4 still reflects your old status, the refund can be smaller or larger than the tax rules would predict.

The IRS advises newly married taxpayers to submit an updated Form W-4 to their employer within 10 days of the wedding.¹¹ Two-income couples in particular should use the IRS Tax Withholding Estimator at irs.gov to avoid underwithholding and a surprise bill at filing time.

1
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
2
Internal Revenue Service. One, Big, Beautiful Bill Act – Tax Deductions for Working Americans and Seniors
3
Internal Revenue Service. Earned Income and Earned Income Tax Credit (EITC) Tables
4
Office of the Law Revision Counsel. 26 USC 86 – Social Security and Tier 1 Railroad Retirement Benefits
5
Internal Revenue Service. Child Tax Credit
6
Office of the Law Revision Counsel. 26 USC 121 – Exclusion of Gain From Sale of Principal Residence
7
Internal Revenue Service. Filing Status
8
Internal Revenue Service. Topic No. 456, Student Loan Interest Deduction
9
Internal Revenue Service. Publication 502 (2025), Medical and Dental Expenses
10
Internal Revenue Service. Head of Household Filing Status
11
Internal Revenue Service. Tax To-Dos for Newlyweds to Keep in Mind