IRS Finalizes 2027 Tax Brackets: Married Couples Can Stay in the 12% Bracket Up to $104,050 of Taxable Income

Adding the standard deduction to a new senior tax break can push a retired couple’s effective income limit well above the figure many people mention. A narrow planning window before year-end determines how much of that room they can still use.

The IRS has published its inflation adjustments for tax year 2027, changing nearly 70 tax provisions for returns filed in 2028. For retired married couples, the key number is where the 12% bracket ends. That threshold shows how much income they can receive before a higher federal tax rate applies.

2027 Tax Brackets for Married Couples Filing Jointly

For joint filers, the first $25,600 of taxable income is taxed at the lowest rate. Income above that level is taxed at 12% until taxable income reaches $104,050. Above that amount, the 22% bracket begins.

That 12% band covers $78,450 of taxable income. A couple right at the top of it would owe $11,974 in federal income tax before any credits. Moving past that point only raises the rate on dollars above the threshold.

Taxable Income Is Calculated After Deductions

Tax brackets are based on taxable income, which is what remains after deductions. Many retired couples do not itemize, so the standard deduction is usually the main one they claim. For joint filers, it rises to $33,200 in 2027, an increase of $1,000 from 2026.

Older couples also qualify for an additional deduction. The Working Families Tax Cuts law, which is how the IRS now refers to the 2025 tax package, created a $6,000 senior deduction for each spouse age 65 or older. It applies through tax years that begin before 2029, so it remains available in 2027.

According to IRS Publication 554, married couples can claim $12,000 if both spouses qualify. The deduction phases down by 6% of modified adjusted gross income above $150,000 on a joint return. Modified adjusted gross income is total income before deductions, with certain items added back.

How Much a Couple 65 and Older Can Earn and Still Remain in the 12% Bracket

When those pieces are combined, the ceiling rises sharply. A married couple in which both spouses are over 65 can have adjusted gross income of $149,250 and still be at the top of the 12% bracket. That total reflects $104,050 of taxable income, plus the $33,200 standard deduction and $12,000 in senior deductions.

That amount sits just below the $150,000 level where the senior deduction begins to phase out, so the full benefit still applies. In 2027, each spouse age 65 or older also gets an extra $1,700 standard deduction. That pushes the couple’s potential income ceiling to $152,650, although the senior deduction starts shrinking once modified adjusted gross income goes above $150,000. For a couple under 65, the same calculation tops out at $137,250.

Actual cash income can be higher still. A portion of most retirees’ Social Security benefits is excluded from adjusted gross income, which means a couple’s spending money can exceed that ceiling even while taxable income remains inside the 12% range.

Three Ways Retirees Can Put the Extra Room to Use

Roth conversions. Any space between a couple’s expected taxable income and $104,050 can be filled by moving traditional IRA money into a Roth and paying tax on it at 12%. Once that space is used up, additional conversion income moves into the 22% bracket. Conversions can also cause more Social Security income to become taxable, increasing the overall tax bill. The period between the final paycheck and the first required minimum distribution is often the cheapest time to convert, which is the focus of our free Roth conversion guide.

IRA withdrawals and capital gains. Couples who prefer not to convert can still take additional traditional IRA withdrawals in lower-income years before required distributions force larger withdrawals later. Long-term capital gains also have a 0% rate for lower-income filers. The 2027 threshold for that rate is included in the full revenue procedure, so it is worth checking before selling appreciated shares.

Track the other income tests. Social Security taxation and Medicare income-related premium surcharges use separate income calculations from the tax bracket system. A conversion that stays within the 12% bracket can still make more of a couple’s benefits taxable or push them into a higher Medicare premium tier. Our coverage explains how those calculations work.

Actions to Take Before Year-End

The new figures apply to income earned in 2027. Any conversion, withdrawal, or capital gain realized before year-end still falls under the current year’s brackets, and that remaining room disappears once the calendar turns. Our earlier coverage on using current brackets before they reset explains what to review now.

The 2027 Number Married Retirees Should Remember

Keep $104,050 in mind: that is where the 12% bracket ends for married couples in 2027. For couples who are both 65 or older, the ceiling can rise above $152,000 in adjusted gross income after the added senior deductions are included, even as that deduction phases out. Every conversion, withdrawal, and sale planned for next year should be measured against that line.