Working While on Social Security: What Seniors Need to Know in 2026

I’m going to be honest with you — this is a topic I didn’t fully understand myself until recently. I’m a semi-retired registered nurse. I still work part-time as a patient advocate, I earn decent money doing it, and I’m on both Social Security and Medicare. When I started putting those three things together, I realized I had some homework to do.

Because the rules around earning income while collecting Social Security are surprisingly complicated. And the way extra income can affect your Medicare premiums? Most people don’t find out about that until the bill arrives.

So let me walk you through what I learned — the 2026 earnings limits, what actually happens if you go over them, how Medicare factors in, and what you can do to protect yourself. I’m going to keep this practical and skip the bureaucratic language as much as possible.

First: Are You Under or Over Full Retirement Age?

Everything in this conversation depends on one question: have you reached your full retirement age (FRA) yet?

A lot of people assume full retirement age is 65. It’s not — not anymore. If you were born in 1960 or later, your full retirement age is 67.¹ And that single fact changes everything about how the earnings rules apply to you.

Here’s the breakdown by birth year:

• Born 1943–1954: Full retirement age is 66
• Born 1955–1959: Full retirement age is between 66 and 67, increasing by two months per birth year
• Born 1960 or later: Full retirement age is 67

If you’re not sure where you land, the Social Security Administration’s retirement age calculator will give you an exact answer based on your birth date.

Now let’s talk about what that means for your paycheck.

The 2026 Social Security Earnings Limits

If you’re collecting Social Security retirement benefits and you’re still working, there’s a cap on how much you can earn before the SSA starts reducing your monthly benefit. This is called the Retirement Earnings Test, and the limits for 2026 are specific depending on your age.²

If You’re Under Full Retirement Age All Year

The annual earnings limit is $24,480.²

For every $2 you earn above that limit, Social Security withholds $1 from your benefit payments. That’s a 50-cent reduction for every dollar over the cap — which adds up fast if you’re working a meaningful number of hours.

Let’s put some numbers to it. Say your Social Security benefit is $1,200 a month — $14,400 for the year. You work part-time and earn $34,480 in net income. That’s $10,000 over the $24,480 limit. Social Security would withhold $5,000 — roughly $417 a month — from your benefits.

That’s real money. And if you don’t report your earnings to SSA in advance, they’ll recapture it later in a lump sum, which can feel like a gut punch in January.

If You Reach Full Retirement Age During 2026

The rules are more generous in the year you hit your FRA. The earnings limit jumps to $65,160 for the months before your birthday, and the withholding rate drops to $1 for every $3 you earn over that limit.²

Once you reach full retirement age — starting with that exact calendar month — the earnings test disappears entirely. You can earn as much as you want with no benefit reduction at all.

After Full Retirement Age

No limit. Work as much as you like. Social Security doesn’t penalize earnings once you’ve hit your FRA. In fact, SSA will recalculate your benefit upward to credit you for any months where benefits were previously withheld. It’s not a permanent loss — it’s more like a delay.³

An Important Clarification for Self-Employed Seniors

If you’re working as a 1099 contractor, freelancer, or through a small business, there’s something you need to understand about how Social Security counts your income.

They don’t count your gross revenue. They count your net self-employment income — meaning revenue minus legitimate business expenses.²

So if you bring in $40,000 as a contractor but you have $18,000 in deductible business expenses, your net self-employment income is $22,000 — which puts you under the $24,480 limit. You’d owe nothing in benefit reductions.

This is worth knowing. Keep good records of your business expenses. Talk to a tax professional about what qualifies. For many part-time self-employed seniors, the actual number the SSA uses is significantly lower than what the bank account suggests.

One more thing: SSA does not count investment income, pension payments, rental income, or interest toward the earnings test. It’s wages and net self-employment income only.² If you’re also thinking about how to stay safe and independent at home while managing retirement income, my guide to the best personal safety devices for seniors living alone covers the tools that give real peace of mind.

It’s Not a Penalty — It’s a Deferral

I want to address something that trips people up. When Social Security withholds benefits because you earned too much, a lot of people think they’ve lost that money forever. That’s not how it works.

Once you reach full retirement age, SSA recalculates your monthly benefit to give you credit for the months your benefits were withheld. Your check goes up. The money wasn’t taken — it was postponed. Over time, most people come out even or ahead.³

That doesn’t mean you should ignore the earnings limit — especially if you need the monthly income right now. But it does mean the long-term picture is less dire than it might seem when you first read the rules.

Now Let’s Talk About Medicare

Here’s where it gets a little more complicated, and honestly, where I think most people get blindsided.

Medicare doesn’t have an earnings limit the way Social Security does. You won’t lose your coverage because you’re earning too much. But if your income is high enough, you’ll pay more for it. Specifically, you’ll pay more for Medicare Part B (which covers doctor visits and outpatient care) and Medicare Part D (prescription drug coverage).

This extra charge is called IRMAA — the Income-Related Monthly Adjustment Amount. And there are two things about it that most people don’t know until it’s too late to plan.⁴ For seniors who are also thinking about aging in place, understanding these Medicare costs is especially important for long-term financial planning.

IRMAA: What It Is and When It Applies

IRMAA is a surcharge added on top of your regular Medicare premiums if your income exceeds certain thresholds. The standard Medicare Part B premium in 2026 is $202.90 per month.⁵ If you’re subject to IRMAA, you’ll pay more — potentially a lot more.

For 2026, IRMAA kicks in when your Modified Adjusted Gross Income (MAGI) exceeds:⁴

• $109,000 if you file taxes as a single individual
• $218,000 if you’re married filing jointly

If you’re under those thresholds, you pay the standard premium and IRMAA doesn’t affect you at all. Most part-time working seniors fall well under these numbers — but if you’re pulling in significant income from work, investments, retirement account withdrawals, or a combination of all three, it’s worth checking where you land.

The Part That Catches People Off Guard: The Two-Year Lookback

Here’s the thing that surprised me most. Medicare doesn’t look at your income from this year to decide whether you owe IRMAA. They look at your tax return from two years ago.⁴

That means your 2026 Medicare premiums are based on your 2024 income.

Think about what that means practically. If you were working full-time in 2024 and retired or cut back significantly in 2025, you could still be hit with IRMAA surcharges in 2026 — even though your current income is much lower. The system is looking at a snapshot of who you were two years ago, not who you are today.

This catches a lot of newly retired people completely off guard. They stop working, their income drops, and then they get a letter from Social Security telling them their Medicare premiums are going up. It feels backward — because it kind of is.

What You Can Do About It

The good news is that you’re not stuck. If your income has dropped significantly due to a life-changing event — including retirement, reduced work hours, divorce, or death of a spouse — you can appeal the IRMAA determination using Form SSA-44.⁶

Filing SSA-44 allows you to ask Social Security to use your more recent, lower income instead of the two-year-old tax return. If you retired in 2025 and your 2024 income triggered IRMAA, you could file this form with documentation of your 2025 income and potentially have your 2026 premiums reduced or eliminated.

Most people don’t do this — not because they’re ineligible, but because they don’t know it’s an option. Now you do.

What Counts as Income for IRMAA Purposes?

Medicare looks at your Modified Adjusted Gross Income (MAGI), which is broader than just wages. It includes:⁴

• Wages, salary, and net self-employment income
• Withdrawals from traditional IRAs and 401(k)s
• Required Minimum Distributions (RMDs)
• Capital gains from selling investments or property
• Pension and annuity income
• Tax-exempt municipal bond interest (yes, this counts)

Notably, withdrawals from Roth IRAs do not count toward MAGI for IRMAA purposes — which is one reason financial planners often recommend Roth accounts as a tool for managing Medicare costs in retirement.⁷

The takeaway for working seniors: if you’re earning income from multiple sources, it’s worth adding them up and seeing where your total MAGI lands relative to the IRMAA thresholds. A conversation with a tax professional or financial planner before year-end can help you plan around these numbers. You can also find current Medicare information directly at medicare.gov.

Can Social Security and Medicare Affect Each Other?

One practical thing worth knowing: if you’re enrolled in Medicare Part B, your premium is usually deducted automatically from your Social Security check. That means if your benefits are being withheld because of the earnings test, you may get a bill directly from Medicare for your Part B premium instead — since there’s no check to deduct it from.²

It’s not a penalty. It’s just a billing logistics issue. But I’ve seen seniors surprised by a Medicare bill they weren’t expecting, and now you’ll know why it might happen.

A Note From a Nurse

I want to be straightforward with you about something. I spent decades as a nurse and now I work as a patient advocate. I’m not a financial advisor and I’m not a tax professional. Nothing in this article should be taken as personalized financial or legal advice.

What I am is someone who navigates this system personally, thinks carefully about it, and tries to share what I’ve learned in plain language. The rules I’ve laid out here come directly from the Social Security Administration and are current for 2026.

But your situation — your birth year, your income sources, your filing status, whether you’re married, whether you have a pension — all of it affects how these rules apply to you specifically. If you’re working and collecting Social Security and you’re not sure where you stand, I genuinely recommend a conversation with a financial planner or CPA who specializes in retirement. A single hour with the right person can save you thousands of dollars in withheld benefits or unexpected Medicare surcharges.

In the meantime, here’s what I want you to walk away knowing:

• If you’re under full retirement age (67 for most people born after 1960), there’s a $24,480 earnings cap in 2026 — and benefits are reduced above that limit²
• At full retirement age, the earnings cap disappears entirely²
• Any benefits withheld before FRA are recredited later — it’s a delay, not a loss³
• Medicare can charge you more if your income is high, through a surcharge called IRMAA⁴
• Medicare looks at your income from two years ago, not this year — so plan accordingly⁴
• If your income has dropped due to a life change, you can appeal the IRMAA determination using Form SSA-44⁶

You worked for decades to earn these benefits. Understanding the rules around them is part of making sure you actually get what you’re owed.

References

1. Social Security Administration. (2026). Retirement age calculator. U.S. Social Security Administration. https://www.ssa.gov/benefits/retirement/planner/ageincrease.html
2. Social Security Administration. (2026). Receiving benefits while working. U.S. Social Security Administration. https://www.ssa.gov/benefits/retirement/planner/whileworking.html
3. Social Security Administration. (2026). How work affects your benefits (Publication No. 05-10069). U.S. Social Security Administration. https://www.ssa.gov/pubs/EN-05-10069.pdf
4. Humana. (2026, January 23). Income related monthly adjustment amount (IRMAA) for 2026 Medicare Part B & Part D premiums. Humana. https://www.humana.com/medicare/medicare-resources/irmaa
5. Medicare Planning. (2026, April). Medicare IRMAA 2026: Brackets, surcharges & how to avoid them. MedicarePlanning.com. https://www.medicareplanning.com/medicare-irmaa-2026/
6. Social Security Administration. (2026). Medicare income-related monthly adjustment amount — Life-changing event (Form SSA-44). U.S. Social Security Administration. https://www.ssa.gov/forms/ssa-44.html
7. Kiplinger. (2026, March 5). Medicare premiums 2026: IRMAA brackets and surcharges for Parts B and D. Kiplinger. https://www.kiplinger.com/retirement/medicare/medicare-premiums-2026-irmaa-brackets-and-surcharges-for-parts-b-and-d

Disclaimer: The information in this article is intended for general informational purposes only and does not constitute medical, financial, or legal advice. I am a registered nurse, not a financial advisor or attorney. Individual circumstances vary — please consult a qualified healthcare provider, licensed financial advisor, or legal professional before making decisions based on the information provided here. Social Security and Medicare rules are subject to change. Always verify current information at ssa.gov and medicare.gov.