Single vs Married Filing Jointly 2026
Standard deductions: $15,000 single vs $30,000 MFJ. Brackets, deductions, and the marriage-penalty math.
2026 tax year · IRS Rev. Proc. 2025-32
2026 Federal Tax Brackets — Side by Side
| Rate | Single | Married Filing Jointly | MFJ vs Single ratio |
|---|---|---|---|
| 10% | $0 – $11,925 | $0 – $23,850 | 2.00x |
| 12% | $11,926 – $48,475 | $23,851 – $96,950 | 2.00x |
| 22% | $48,476 – $103,350 | $96,951 – $206,700 | 2.00x |
| 24% | $103,351 – $197,300 | $206,701 – $394,600 | 2.00x |
| 32% | $197,301 – $250,525 | $394,601 – $501,050 | 2.00x |
| 35% | $250,526 – $626,350 | $501,051 – $751,600 | 1.20x |
| 37% | $626,351 – ∞ | $751,601 – ∞ | n/ax |
When the ratio drops below 2.0, the "marriage penalty" kicks in for dual high-earner couples.
Single — Quick Stats 2026
- Standard deduction: $15,000
- Top bracket starts: $626,351
- 0% LTCG bracket max: $49,925
- 15% LTCG bracket max: $533,400
- Roth IRA phase-out: ~$150k–$165k
MFJ — Quick Stats 2026
- Standard deduction: $30,000
- Top bracket starts: $751,601
- 0% LTCG bracket max: $99,850
- 15% LTCG bracket max: $600,050
- Roth IRA phase-out: ~$236k–$246k
Frequently Asked Questions
What is the difference between single and married filing jointly in 2026?▼
Single filers use one set of brackets and a standard deduction of $15,000 for 2026. Married Filing Jointly (MFJ) combines both spouses' incomes onto one return with wider brackets (about double single) and a $30,000 standard deduction. MFJ is generally more favorable when one spouse earns significantly more than the other; it can produce a 'marriage penalty' when both earn similar high incomes.
Are the MFJ brackets exactly double the single brackets?▼
No — only at lower income levels. The 10% and 12% MFJ brackets are exactly 2x single. But the 22% and 24% brackets are slightly less than 2x. At the 32%/35%/37% level, MFJ brackets are NOT 2x single — this is where the marriage penalty kicks in for high-earning dual-income couples. Two individuals earning $300k each pay more as MFJ than they would filing separately.
When does the marriage penalty hit hardest?▼
The marriage penalty is largest for two-income households where both earn similar amounts in the upper brackets (above ~$250k each). At those levels, combining incomes pushes more dollars into the 32%/35%/37% brackets than they'd face individually. Couples with disparate incomes (one earner or one much smaller) typically see a marriage BONUS, not penalty.
Should we file MFJ or Married Filing Separately (MFS)?▼
MFJ is almost always better. MFS loses access to: education credits, student loan interest deduction, EITC, Roth IRA contributions (income limits), and many state tax benefits. MFS is rare but can help when one spouse has high medical expenses (deduction threshold based on individual AGI) or when the other has tax problems you want to separate from.
How does filing status affect tax brackets at the same total income?▼
At $100,000 total income: A single filer with $100k pays the 22% top rate (bracket $48,476-$103,350). A married couple at $100k MFJ pays 12% top rate (bracket $23,851-$96,950) plus a tiny slice at 22%. Same income, drastically different tax. Effective rate single ~17%, MFJ ~12%.
Can I use Head of Household (HOH) instead?▼
Head of Household is for unmarried taxpayers maintaining a household for a qualifying child or dependent. The 2026 HOH standard deduction is $22,500 — between single and MFJ. HOH brackets are also wider than single. If you're divorced/widowed/never-married with children, HOH almost always beats single.