Social Security and Taxes: How Your Benefits Are Taxed in Retirement

Decoding How Social Security Is Taxed in Retirement

Most retirees are surprised — sometimes blindsided — to learn that the Social Security benefits they spent decades paying for can be subject to federal income tax. Up to 85% of your monthly Social Security check can be pulled into your taxable income, depending on your other income.

Headlines in 2025 made this even more confusing. The One Big Beautiful Bill Act (OBBBA), signed into law in 2025, added a temporary senior deduction that practically reduces or eliminates federal tax on Social Security for many middle-income retirees. But the underlying taxation rule — the formula that decides whether your benefits get taxed at all — was not changed.

Here at LifeHelm, we'd rather you understand the difference than be surprised at tax time. This is a plain-English guide to how Social Security is taxed in 2026, what changed under recent legislation, and the planning moves that can keep more of your benefit.

The Federal Taxation Rule (Unchanged Since the 1980s)

Federal taxation of Social Security benefits is based on a concept called "combined income" (also referred to as "provisional income"). The formula and the thresholds are set in statute — and the thresholds have not been adjusted for inflation since they were set in 1983 (for the 50% tier) and 1993 (for the 85% tier).

How Combined Income Works

Combined income = your adjusted gross income (AGI) + any tax-exempt interest + half of your Social Security benefits

Quick example: A retiree with $30,000 in AGI from pensions and IRA withdrawals, $1,000 in tax-exempt municipal bond interest, and $24,000 in annual Social Security benefits has combined income of $30,000 + $1,000 + $12,000 = $43,000.

The Thresholds and Tiers (2026)

Once you know your combined income, you compare it to fixed statutory thresholds:

• Single, head of household, qualifying widow(er):

• Combined income under $25,000: 0% of benefits are taxable

• Combined income $25,000–$34,000: up to 50% of benefits may be taxable

• Combined income above $34,000: up to 85% of benefits may be taxable

• Married filing jointly:

• Combined income under $32,000: 0% of benefits are taxable

• Combined income $32,000–$44,000: up to 50% of benefits may be taxable

• Combined income above $44,000: up to 85% of benefits may be taxable

• Married filing separately, living with your spouse at any time during the year: up to 85% of benefits taxable from $0

Because these thresholds haven't been indexed since the 1980s, each year more retirees cross them just from inflation and ordinary wage growth — a phenomenon sometimes called "bracket creep."

The 85% Cap

Once your combined income passes the upper threshold, 85% of your benefits become taxable — and that's the maximum. No matter how high your other income, more than 85% of your Social Security can never be pulled into federal taxable income.

Important distinction: "85% taxable" doesn't mean you pay an 85% tax. It means 85% of your benefit gets added to your taxable income, then taxed at your regular income tax bracket. If you're in the 22% bracket, you'd pay $0.187 of federal tax on each dollar of Social Security (85% × 22%).

2026 Tax Changes That Affect You Indirectly

The OBBBA Senior Bonus Deduction

The One Big Beautiful Bill Act, signed in 2025, added a temporary "senior bonus deduction" for taxpayers age 65 and older:

• Amount: up to $6,000 per qualifying person ($12,000 for a married couple where both are 65+)

• Years it applies: tax years 2025–2028

• How it works: reduces AGI/taxable income — does not change the provisional income thresholds themselves

• Income limits: the deduction phases out at higher incomes; verify your eligibility with a tax professional or up-to-date IRS guidance

Practical effect: because the deduction lowers your taxable income, many lower- and middle-income retirees with modest other income will see their effective tax on Social Security drop to zero — without the underlying rule changing. Some commentators have misleadingly described this as "Social Security is no longer taxed"; that overstates it. If you have meaningful retirement income from a pension, large IRA withdrawals, or investment gains, you can still owe tax on your benefits.

The 2026 Standard Deduction

For 2026 tax returns (filed in 2027):

• Single filers: $16,100 standard deduction

• Married filing jointly: $32,200 standard deduction

• Additional standard deduction for age 65+: an additional $1,650 (single) or $1,350 each (joint) for those 65 or older — separate from the OBBBA senior bonus deduction

These standard deductions, combined with the senior bonus deduction, keep many average-benefit retirees below the income levels where federal tax becomes a meaningful issue. Verify exact 2026 numbers with IRS Publication 17 or your tax preparer.

Proposed: The You Earned It, You Keep It Act

As of early 2026, a bill called the You Earned It, You Keep It Act remains under consideration in Congress. If passed, it would eliminate federal income tax on Social Security benefits entirely. As of this writing the bill has not become law. Don't plan around it.

The Social Security Tax Torpedo

This is the most counterintuitive — and most overlooked — feature of Social Security taxation. In the narrow income ranges where additional non-Social-Security income causes more of your benefits to become taxable, your effective marginal tax rate spikes.

Here's how it works: a single additional dollar of IRA withdrawal can push your combined income up by $1, making an additional $0.50 (or in the 85% tier, $0.85) of your Social Security taxable. So that one additional dollar of withdrawal effectively adds $1.50 to $1.85 to your taxable income. At a 22% federal bracket, that's an effective marginal rate of 33% to 41% on the withdrawal — not the 22% the tax table suggests.

The torpedo doesn't apply to everyone. It hits retirees in specific income ranges, generally between the lower and upper provisional income thresholds. Working with a tax-savvy financial planner or a CPA to model your retirement-income drawdowns can avoid leaving thousands on the table over a 20- to 30-year retirement.

State Taxation

Federal tax is only half the story. Some states also tax Social Security — though the count keeps dropping.

For tax year 2026, roughly 9 states still tax Social Security benefits in some form: Colorado, Connecticut, Minnesota, Montana, New Mexico, Rhode Island, Utah, Vermont, and West Virginia. Most of these have age-based or income-based exemptions that eliminate state tax for the majority of beneficiaries. West Virginia is phasing out its tax entirely; for 2026 tax returns, the state exemption is complete.

Forty-one states plus the District of Columbia do not tax Social Security benefits at all. If you're considering where to retire and Social Security is a meaningful share of your income, state taxation is one factor worth running the numbers on — but rarely the only one.

Practical Strategies to Reduce Social Security Taxation

If your income is high enough that taxation of benefits is a real concern, several strategies can help. None is a substitute for advice tailored to your specific situation, but these are the most commonly used:

• Roth conversions before claiming Social Security. Convert traditional IRA funds to Roth in early retirement years (before required minimum distributions begin). Roth withdrawals don't count toward combined income, so they don't push your benefits into taxable territory later.

• Spend taxable accounts first. Drawing from non-retirement accounts before tapping IRAs/401(k)s keeps your AGI lower in the years when SS taxation is most likely to bite.

• Delay claiming Social Security. If you can fund early retirement from other sources, delaying claiming both grows your benefit and gives you more years to do Roth conversions at lower brackets.

• Qualified Charitable Distributions (QCDs). If you're 70½ or older with charitable intent, sending up to $105,000/year directly from your IRA to charity satisfies your required minimum distribution without adding to your AGI.

• Watch tax-exempt interest. Municipal bond interest is federally tax-exempt but still counts toward combined income. This catches retirees off guard.

• Manage withholding. You can elect federal tax withholding directly from your Social Security check (Form W-4V or via your my Social Security account) to avoid a surprise at tax time.

The Bottom Line

Social Security taxation in 2026 has gotten less painful for many retirees thanks to the OBBBA senior bonus deduction — but the underlying rule didn't change. If you have meaningful income beyond Social Security, your benefits can still be partly taxed.

The most important moves to make:

• Run your actual numbers. Estimate your combined income using AGI + tax-exempt interest + ½ of expected SS benefits. Compare to the thresholds.

• Plan for the tax torpedo if your income lands in the threshold ranges.

• Don't bank on proposed legislation. The You Earned It, You Keep It Act is not law.

• Consider state taxation if you're choosing where to retire — but weight it appropriately.

Here's to keeping more of the benefit you earned.

Sources

• Internal Revenue Service, Publication 915, "Social Security and Equivalent Railroad Retirement Benefits." irs.gov/forms-pubs/about-publication-915

• Internal Revenue Service, 2026 inflation adjustments (Revenue Procedure 2025-32)

• Social Security Administration, "Income Taxes and Your Social Security Benefit." ssa.gov/benefits/retirement/planner/taxes.html

• Public Law 119-21 (the One Big Beautiful Bill Act), 2025 — provisions creating a temporary senior bonus deduction

• Tax Foundation, state-by-state analysis of Social Security taxation. taxfoundation.org