Marriage Bonus vs Marriage Penalty
A marriage bonus happens when the spouses' incomes are unequal; a marriage penalty happens when both spouses earn high, similar incomes. The joint brackets are exactly double the single brackets up to the 32% bracket, so most couples see a bonus or no change.
The 35% joint bracket ends at $768,700, not double the single $640,600. Two spouses earning $400,000 each pay $0 more filing jointly.
Marriage Tax Examples
| Spouse incomes | Two single returns | Married jointly | Result |
|---|---|---|---|
| $60,000 + $0 | $5,020 | $2,840 | Bonus $2,180 |
| $80,000 + $40,000 | $11,390 | $10,040 | Bonus $1,350 |
| $85,000 + $45,000 | $13,090 | $11,240 | Bonus $1,850 |
| $100,000 + $100,000 | $26,340 | $26,340 | Bonus $0 |
| $300,000 + $20,000 | $68,524.25 | $54,268 | Bonus $14,256.25 |
| $400,000 + $400,000 | $206,268.50 | $206,268.50 | Bonus $0 |
Federal income tax only, standard deductions of $16,100 each single and $32,200 joint.
Married Filing Separately
Married filing separately uses brackets half the size of the joint brackets and loses the Earned Income Tax Credit and most education credits. It rarely lowers total tax; couples choose it to separate liability or for income-driven student loan payments.
The Tax Bracket Calculator shows the single and joint brackets.
Tax Before and After Marriage
The tax before and after marriage differs only by the deduction and the brackets applied to the same combined income. The calculator runs both versions side by side.
| Spouses earning $85,000 and $45,000 | Two single returns | Married filing jointly |
|---|---|---|
| Combined income | $130,000 | $130,000 |
| Standard deduction | $32,200 | $32,200 |
| Federal income tax | $13,090 | $11,240 |
The standard deduction is the same in total, $32,200, either way. The saving of $1,850 comes from the brackets: as a single filer the $85,000 earner has income in the 22% bracket, while the joint return keeps all of the couple's taxable income at 12% or less.
How Joint Filing Widens the Brackets
A joint return gives a couple bracket bands twice as wide as a single filer's, up to the 32% rate, and a standard deduction of $32,200, twice the single $16,100.
From the 35% rate up, the joint bands are less than double the single ones, so two high earners can owe more together than apart. That gap is the marriage penalty at the top. The Tax Bracket Calculator lists every 2026 band for each filing status.
Marriage Bonus With One Income
A couple where one spouse earns all the income gets the largest marriage bonus, because the joint return spreads that income over brackets twice as wide.
A $90,000 earner married to a spouse with no income pays $6,440 filing jointly against $10,970 as a single filer: a $4,530 bonus. Two spouses earning $60,000 each see $0 of difference, since each half of their joint income fills the same brackets a single return would.
Other Tax Rules That Change When You Marry
Beyond the brackets, marriage changes several thresholds that are not exactly double the single amount:
- Additional Medicare Tax: the 0.9% tax starts at $250,000 of joint wages, against $200,000 for each single filer.
- Capital loss limit: a joint return deducts up to $3,000 of net capital loss, the same as one single return.
- Earned Income Tax Credit: two low-earning spouses can lose part of the credit once their wages are combined.
- Spousal IRA: a spouse with little or no pay can still fund an IRA from the couple's joint earned income.
Some thresholds do double: the Child Tax Credit phase-out starts at $400,000 joint against $200,000 single. The calculator covers federal income tax only; run the Child Tax Credit Calculator separately when you have children.
When Marriage Counts for the Tax Year
Your filing status is set by whether you are married on December 31. A couple married on the last day of 2026 can file a joint return for the whole of 2026.
After the wedding, both spouses should file a new Form W-4. Each employer withholds as if that paycheck were the only income, so two earners who both pick "married filing jointly" can be underwithheld. Step 2 of the W-4 fixes that, and the Withholding Calculator checks the result per paycheck.
Frequently Asked Questions
How does marriage affect taxes?
Marriage doubles the standard deduction and widens the brackets for a joint return. Couples with unequal incomes usually pay less; two high earners can pay more.
Is there still a marriage penalty in 2026?
Yes, for high earners. The 35% and 37% joint brackets are less than double the single brackets, so two spouses with incomes near $400,000 each pay more filing jointly.
How much tax does a married couple pay?
A married couple earning $130,000 together pays $11,240 of federal income tax filing jointly in 2026, before credits.
How does the marriage tax work?
The marriage tax works by taxing a couple's combined income on the joint brackets and the joint standard deduction. The result is compared with what the two spouses would owe as single filers.
Is getting married worth it for taxes?
For most couples, yes or neutral. Spouses with unequal incomes usually save, such as $1,850 on $85,000 and $45,000; very high equal earners can pay more.
Do we pay less tax married if one spouse does not work?
Yes. One $90,000 income filed jointly pays $4,530 less federal tax than the same income on a single return in 2026.
Does a December wedding count for the whole tax year?
Yes. You are married for the whole year if you are married on December 31, so you can file jointly for that year.
Should we update our W-4 after getting married?
Yes. Both spouses should file a new Form W-4 after the wedding, and use Step 2 when both work, so the year's withholding matches the joint tax.