What Is the Income Limit for Married Filing Jointly?

There is no single income limit for married filing jointly — the filing status itself has no cap. What exists instead is a stack of separate thresholds inside the joint return, each one controlling access to a specific tax bracket, credit, deduction, or surtax. For 2026, these run from $32,000, where Social Security benefits start becoming taxable, up to $1,000,000, where the Alternative Minimum Tax exemption begins to disappear. Where your combined income lands within that range decides which benefits you keep and which extra taxes you owe.

The Baseline: Standard Deduction and Tax Brackets

Before any phase-out matters, two numbers apply to every joint return. For 2026, the standard deduction for married couples filing jointly is $32,200.¹ It comes off gross income before tax rates apply, so a couple with $80,000 in gross income is taxed on $47,800.

The 2026 federal income tax brackets for joint filers:

10% on taxable income up to $24,800
12% from $24,801 to $100,800
22% from $100,801 to $211,400
24% from $211,401 to $403,550
32% from $403,551 to $512,450
35% from $512,451 to $768,700
37% above $768,700

These are marginal rates. Only the dollars inside each range get taxed at that range’s rate, so a couple with $250,000 of taxable income pays 10% on the first $24,800, 12% on the next slice, and 22% and 24% on the portions in those bands.¹

AGI and MAGI: The Numbers Every Limit Uses

Nearly every threshold below runs through one of two figures. Adjusted Gross Income (AGI) is gross income minus certain above-the-line deductions like student loan interest and deductible IRA contributions. Modified Adjusted Gross Income (MAGI) starts with AGI and adds back specific items — usually tax-exempt interest and certain foreign income — but the exact add-backs vary by credit or deduction. You can end up with slightly different MAGI figures for different purposes on the same return.

Income Limits That Cut Off Credits

Child Tax Credit

The Child Tax Credit provides up to $2,200 per qualifying child under 17 for 2026, with up to $1,700 per child refundable through the Additional Child Tax Credit if you have at least $2,500 in earned income. Joint filers keep the full credit at AGI of $400,000 or less. Above that, the credit shrinks by $50 for every $1,000 of excess income, so a couple at $440,000 loses $2,000 of the total.²

Earned Income Tax Credit

The EITC caps out at some of the lowest income levels of any major credit. Both earned income and AGI must fall below limits set by the number of qualifying children. The 2025 figures published by the IRS (2026 numbers typically move up slightly for inflation):

Three or more children: AGI up to $68,675, credit up to $8,046
Two children: AGI up to $64,430, credit up to $7,152
One child: AGI up to $57,554, credit up to $4,328
No children: AGI up to $26,214, credit up to $649

Investment income cannot exceed $11,950.³

Education Credits and the Student Loan Interest Deduction

The American Opportunity Tax Credit and Lifetime Learning Credit share the same MAGI window for joint filers: the full credit below $160,000, a partial credit between $160,000 and $180,000, and nothing above $180,000.⁴⁵

The student loan interest deduction (worth up to $2,500) phases out for joint filers between $175,000 and $205,000 MAGI, disappearing at $205,000.⁶

Income Limits That Cut Off Retirement Tax Breaks

Roth IRA Contributions

Joint filers can contribute the full $7,500 to a Roth IRA for 2026 (or $8,600 if either spouse is 50 or older) as long as MAGI stays below $242,000. The contribution phases down between $242,000 and $252,000, and direct Roth contributions are eliminated at $252,000.⁷

Traditional IRA Deduction

Whether income limits apply to a traditional IRA deduction depends on workplace retirement coverage. For 2026:

If the contributing spouse has a workplace plan, the full deduction is available at MAGI of $129,000 or less, phases out between $129,000 and $149,000, and disappears above $149,000.
If only the other spouse has a workplace plan, the deduction phases out between $242,000 and $252,000.
If neither spouse has a workplace plan, no income limit applies.⁷

Saver’s Credit

The Saver’s Credit rewards retirement contributions with a nonrefundable credit that depends on where AGI falls in three tiers. For 2026 joint filers:

50% credit at AGI of $48,500 or less
20% credit from $48,501 to $52,500
10% credit from $52,501 to $80,500

Above $80,500, the credit is zero. The maximum qualifying contribution is $4,000 per couple, so the credit tops out at $2,000.⁷

Income Limits That Trigger Extra Taxes

Net Investment Income Tax

A 3.8% surtax applies to the lesser of net investment income or the amount by which MAGI exceeds $250,000. Investment income includes interest, dividends, capital gains, and passive business income. A joint filer at $300,000 MAGI with $80,000 of investment income pays the 3.8% on $50,000, since that’s less than the investment income figure.⁸

Additional Medicare Tax

An extra 0.9% Medicare tax applies to combined wages and self-employment income above $250,000 for joint filers.⁹ Employer withholding runs on a separate rule: each employer starts withholding the extra 0.9% once an individual employee’s wages cross $200,000, regardless of filing status. If both spouses earn $180,000, no employer withholds the surtax, but the couple still owes it on $110,000 of combined wages above the $250,000 line.¹⁰

Alternative Minimum Tax

Joint filers get an AMT exemption of $140,200 for 2026. That exemption begins phasing out at $1,000,000 of alternative minimum taxable income, shrinking by 25 cents for every dollar above the threshold.¹ Couples most likely to trigger AMT are those with large state and local tax bills, significant incentive stock option exercises, or tax-exempt interest from private activity bonds.

Qualified Business Income Deduction

Owners of pass-through businesses can deduct up to 20% of qualified business income under Section 199A. For 2026, joint filers with taxable income below $403,500 take the full deduction without restriction. Between $403,500 and $553,500, wage and capital limitations begin to reduce the deduction for specified service businesses like law, medicine, and consulting. Above $553,500, the deduction is eliminated for those service businesses, while other businesses face wage-and-capital caps.¹

Capital Gains Rate Thresholds

Long-term capital gains and qualified dividends use their own set of income breakpoints. For 2026 joint filers:

0% rate on taxable income up to $98,900
15% rate from $98,901 to $613,700
20% rate above $613,700

The thresholds apply to total taxable income, not just the gain itself, so a couple’s gains can straddle two rate tiers depending on the rest of the return.¹

Income Limits That Hit in Retirement

Taxation of Social Security Benefits

Social Security taxation uses “provisional income,” calculated by adding AGI, tax-exempt interest, and half of Social Security benefits. The joint-filer thresholds have not been indexed for inflation since 1993:

Below $32,000: benefits are not taxed
$32,000 to $44,000: up to 50% of benefits may be taxable
Above $44,000: up to 85% of benefits may be taxable

Because those lines don’t move, more retirees cross them every year. A modest pension paired with Social Security is often enough to push a couple past $44,000.¹¹

Medicare Premium Surcharges (IRMAA)

Income limits keep applying after retirement. Medicare uses joint MAGI from two years earlier to set income-related monthly adjustment amounts on Part B and Part D. For 2026, based on 2024 MAGI:

$218,000 or less: standard Part B premium of $202.90; no Part D surcharge
$218,001 to $274,000: Part B $284.10; Part D surcharge $14.50
$274,001 to $342,000: Part B $405.80; Part D surcharge $37.50
$342,001 to $410,000: Part B $527.50; Part D surcharge $60.40
$410,001 to $749,999: Part B $649.20; Part D surcharge $83.30
$750,000 or more: Part B $689.90; Part D surcharge $91.00

At the top tier, a couple pays close to $1,380 per month in Part B premiums alone. The two-year lookback catches people who had a one-time income spike from selling a business or exercising options.¹²

1
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
2
Internal Revenue Service. Child Tax Credit
3
Internal Revenue Service. Earned Income and Earned Income Tax Credit (EITC) Tables
4
Internal Revenue Service. American Opportunity Tax Credit
5
Internal Revenue Service. 2025 Instructions for Form 8863 – Education Credits
6
Internal Revenue Service. Topic No. 456, Student Loan Interest Deduction
7
Internal Revenue Service. Notice 2025-67 – 2026 Amounts Relating to Retirement Plans and IRAs
8
Internal Revenue Service. Topic No. 559, Net Investment Income Tax
9
Internal Revenue Service. Topic No. 560, Additional Medicare Tax
10
Internal Revenue Service. Questions and Answers for the Additional Medicare Tax
11
Internal Revenue Service. IRS Reminds Taxpayers Their Social Security Benefits May Be Taxable
12
Medicare.gov. 2026 Medicare Costs