Claiming Social Security While Still Working: 3 Big Tax Traps in 2026

Last April, I sat across from a client named Mike — 63, still working full-time as a project manager, and convinced he was being smart by claiming Social Security early. He'd done the math: start at 62, get a smaller check, keep earning his salary. What he hadn't done was check what his W-2 would do to his taxes. When I showed him the provisional income numbers, he went quiet. Then he said something I'll never forget: "So I'm basically paying the government to let me work?" That's the moment I knew I had to write this guide for 2026.

If you're thinking about claiming Social Security while still working next year, you're not alone — but you are walking into three specific tax traps that got sharper for 2026. Let me walk you through each one, what changed, and how to sidestep them before they eat your paycheck.

Why Claiming Social Security While Working in 2026 Is a Whole New Tax Game

Every year, the Social Security Administration updates its earnings test limits and the IRS adjusts tax brackets. But 2026 stands out because of three converging factors: a larger-than-average COLA (estimated around 3.2% as of mid-2025 projections), higher wage thresholds for the earnings test, and continued bracket creep that hits working retirees harder than ever.

The core problem is simple: when you work and collect benefits simultaneously, your income stacks. That stack can trigger benefit withholding, federal income taxes on up to 85% of your benefits, and even higher Medicare premiums through IRMAA. Most people only think about the first trap — the earnings test — but the second and third can cost you far more over time.

In my own planning work, I've seen retirees lose thousands to surprise tax bills simply because they didn't adjust their withholding or check their provisional income before filing. The IRS doesn't send a warning; they just send a bill.

Trap #1: The Earnings Test Still Bites (Even in 2026) — And It's Getting Sharper

The earnings test is the best-known trap, but most people underestimate how much it can take. In 2025, if you're under full retirement age (FRA) for the entire year, Social Security withholds $1 in benefits for every $2 you earn above $22,320. For 2026, that threshold is expected to rise slightly — likely to around $23,000 — but the withholding rate stays the same.

Here's where it gets tricky: the withholding isn't permanent. Once you reach FRA, Social Security recalculates your benefit to credit you for the months they withheld. But if you're claiming early and working, you're essentially giving the government an interest-free loan. Meanwhile, your cash flow is reduced right when you might need it most.

Consider a concrete example: Let's say you're 63 in 2026, earning $50,000 a year, and you claimed benefits at 62. Your earnings exceed the limit by about $27,000. Social Security withholds $13,500 of your benefits for the year — that's over $1,100 a month gone from your expected check. Yes, you'll get it back later as a higher monthly payment after FRA, but if you need that money now to cover bills or medical expenses, it's a real hit.

The sharp edge for 2026? Inflation-adjusted wages are climbing faster than the earnings test limit. So even if your salary stays flat in real terms, a cost-of-living raise could push you over the threshold. I've seen clients lose $500 a year in benefits just from a 3% raise — they never saw it coming.

Actionable tip: If you're under FRA and working, estimate your annual earnings before you claim. If you'll exceed the limit, consider delaying your claim until January of the year you'll earn less, or reduce your work hours intentionally during the claiming year.

Trap #2: Provisional Income Math — The Tax Torpedo That Hits Working Retirees Hardest

This is the trap that surprises even savvy retirees. The tax on Social Security benefits is based on "provisional income" — your adjusted gross income plus nontaxable interest plus half of your Social Security benefits. When that number crosses certain thresholds, up to 85% of your benefits become taxable at your ordinary income rate.

For 2026, the thresholds haven't changed: $25,000 for single filers, $32,000 for married filing jointly. But here's the killer: your wages count fully in provisional income. So if you're earning $40,000 a year and collecting $15,000 in benefits, your provisional income is roughly $40,000 + $7,500 (half of benefits) = $47,500. That's $15,500 over the married threshold — meaning 85% of your benefits are taxed.

Let me give you a real scenario from a client I'll call Susan. She's 64, works part-time earning $30,000, and collects $18,000 in Social Security. Her provisional income was $30,000 + $9,000 = $39,000. For a single filer, that's $14,000 over the $25,000 threshold. The result: $15,300 of her benefits were taxed as ordinary income. At a 22% tax bracket, that added $3,366 to her tax bill — money she hadn't budgeted for.

What most people don't realize is that this tax torpedo hits hardest in the middle-income range. If you're low-income, your benefits aren't taxed. If you're high-income, you're already paying taxes on everything. But working retirees in the $30,000–$60,000 income range get crushed because every additional dollar of wages pushes more benefits into taxable territory.

Actionable tip: Before you claim, run a provisional income estimate using your expected wages and benefits. If you're close to a threshold, consider delaying benefits or shifting income sources (like using Roth IRA withdrawals instead of traditional IRA distributions) to stay under the limit.

Trap #3: The 2026 COLA and Your Paycheck — A Hidden Bracket Bump

The 2026 COLA — projected around 3.2% — might sound like good news. It means a bigger monthly check. But if you're working, that raise can push your total income into a higher tax bracket or trigger Medicare IRMAA surcharges.

Here's how it works: Your COLA increases your Social Security benefit. That extra income, combined with your wages, can push your provisional income over the 85% threshold if you were already close. But the real surprise is IRMAA — the Income-Related Monthly Adjustment Amount for Medicare Part B and D premiums.

In 2026, IRMAA brackets are expected to be roughly $103,000 for single filers and $206,000 for married filing jointly (adjusted for inflation from 2025). If your combined income — including the COLA boost — pushes you over one of those tiers, your monthly Medicare premiums can jump by $70 to $400 per month, per person. That's $840 to $4,800 extra per year in premiums, and it's not deductible as medical expenses for most people.

I once had a client who earned $95,000 from work and $25,000 from Social Security — combined income of $120,000. The 2026 COLA added $800 to his benefits, pushing him just over the $103,000 single IRMAA threshold. His Medicare Part B premium went from $174.70 to $244.60 per month — an extra $838 a year. All because of that tiny COLA bump.

Actionable tip: If you're close to an IRMAA bracket, consider reducing your work income slightly — maybe by cutting back hours or taking a lower-paying role — to stay under the threshold. You can also appeal IRMAA if you have a life-changing event like reduced work hours or retirement.

How to Sidestep These Traps: Smart Strategies for Working Claimants in 2026

After seeing these traps play out with real clients, I've developed a short checklist that I share with anyone considering claiming while working:

1. Run a provisional income estimate before you claim. Use the IRS worksheet in Publication 915 or a free online calculator. Include your expected wages, any investment income, and half of your estimated benefits.
2. Consider delaying your claim until January of a year you'll earn less. If you're planning to retire mid-2026, claiming in January 2026 might look good, but your earnings for that year could still be high. Instead, wait until January 2027 when your work income drops.
3. Use Roth conversions or withdrawals strategically. Roth distributions don't count in provisional income, so they won't trigger the tax torpedo. If you have a Roth IRA, use it for living expenses during the years you're claiming benefits and working.
4. Adjust your withholding. If you know your benefits will be taxed, have extra taxes withheld from your paycheck or make quarterly estimated payments. Otherwise, you'll face a surprise bill at tax time.
5. Monitor your income throughout the year. If you're close to an IRMAA bracket, cut back on overtime or bonuses to stay under the line. A few thousand dollars in extra earnings can cost you thousands more in Medicare premiums.

One counter-intuitive insight I've learned: sometimes the best move is to not claim early even if you plan to keep working. The earnings test withholding, combined with the tax torpedo, can effectively reduce your net benefit by 30-40% in the year you claim. Waiting until FRA — or at least until your work income drops — can save you thousands.

But if you do claim early while working, use the SSA's online tool to estimate the earnings test impact. And remember: you can always suspend benefits at FRA if you change your mind, but you can't undo the first 12 months without repaying everything.

Worth bookmarking this page before your next tax planning session — these numbers change every year, and 2026's quirks won't be obvious from a quick glance at your pay stub.

Bottom line: Claiming Social Security while working in 2026 isn't automatically a mistake, but it requires careful planning. The earnings test, the tax torpedo, and the COLA-driven bracket bump can turn a sensible decision into a costly one. Run the numbers, adjust your strategy, and don't let the government's arcane rules steal your retirement income.