You can start collecting Social Security and keep working at the same time, at any age. What changes is the math around your check, your tax bill, and eventually your Medicare premiums. Retiring and still working is common enough that federal law has specific rules for it, and those rules turn on three things: your age when you claim, how much you earn, and what kind of benefits you receive.
The Earnings Test Before Full Retirement Age
If you claim Social Security before your full retirement age, currently 67 for anyone born in 1960 or later, the Social Security Administration applies an earnings test. In 2026 you can earn up to $24,480 without any reduction. Above that, the agency withholds $1 in benefits for every $2 you earn.1Social Security Administration. Exempt Amounts Under the Earnings Test2Office of the Law Revision Counsel. 42 USC 403 – Reduction of Insurance Benefits
The rules loosen in the calendar year you reach full retirement age. That year, the exempt amount jumps to $65,160, and only $1 is withheld for every $3 above it. Only earnings from the months before your birthday count. Once you actually reach full retirement age, the earnings test goes away entirely, and you can earn any amount without a reduction.1Social Security Administration. Exempt Amounts Under the Earnings Test2Office of the Law Revision Counsel. 42 USC 403 – Reduction of Insurance Benefits
Withheld money is not gone. When you reach full retirement age, the agency recalculates your monthly benefit to credit you for the months payments were reduced or withheld, raising your check going forward.3Social Security Administration. Receiving Benefits While Working Only wages and net self-employment income count toward these limits. Investment income, interest, pensions, and annuities do not.
How Continued Work Can Raise Your Benefit
Working in retirement can also increase your Social Security amount for good. Your benefit is based on your highest 35 years of earnings. Each year, the agency reviews your wages, and if the most recent year ranks among your top 35, it automatically recalculates and applies any increase retroactively to January of the following year.3Social Security Administration. Receiving Benefits While Working
This matters most if you had low-earning or zero-earning years earlier in your career. A strong year now replaces a weak year in the average, and the resulting bump lasts for the rest of your life.
When to Start Claiming If You Plan to Keep Working
The age you first claim has a permanent effect on your monthly amount. The earliest you can claim is 62, and for someone with a full retirement age of 67, claiming at 62 reduces the benefit by 30%.4Social Security Administration. Benefit Reduction for Early Retirement
Waiting past full retirement age works the other way. Each year you delay past full retirement age, up to 70, adds 8% to your monthly benefit.5Social Security Administration. Early or Late Retirement There is no additional credit for waiting past 70. If your paycheck is covering your expenses, delaying the claim is one of the most direct ways to boost lifetime Social Security income.
Taxes on Your Social Security Benefits
Earned income can also push more of your Social Security into taxable territory. The IRS calculates a figure called provisional income: your adjusted gross income, plus any tax-exempt interest, plus half of your Social Security benefits.6Office of the Law Revision Counsel. 26 USC 86 – Social Security and Tier 1 Railroad Retirement Benefits
- Single filers: provisional income between $25,000 and $34,000 makes up to 50% of your benefits taxable; above $34,000, up to 85% may be taxable.
- Married filing jointly: provisional income between $32,000 and $44,000 makes up to 50% taxable; above $44,000, up to 85% may be taxable.
These thresholds have never been indexed for inflation, so even modest employment income can cross them once investment returns and half of Social Security are added in.6Office of the Law Revision Counsel. 26 USC 86 – Social Security and Tier 1 Railroad Retirement Benefits You can manage the resulting tax through quarterly estimated payments or by requesting voluntary withholding directly from your Social Security check on IRS Form W-4V. A handful of states also tax Social Security, though most fully exempt it.
Self-Employment Tax
Many people return to work as freelancers or consultants rather than employees. Self-employment income carries a 15.3% self-employment tax, covering both sides of Social Security (12.4%) and Medicare (2.9%).7Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet The Social Security portion applies only up to the 2026 wage base of $184,500; Medicare has no cap.8Social Security Administration. Contribution and Benefit Base
If your combined earnings exceed $200,000 as a single filer or $250,000 on a joint return, an additional 0.9% Medicare surtax applies to the excess. Net self-employment income also counts toward the Social Security earnings test, so it can trigger the same withholding of benefits for people under full retirement age.
On the other side, self-employed retirees can deduct health insurance premiums, including medical, dental, vision, and qualified long-term care coverage, from taxable income, as long as they are not eligible for an employer-subsidized plan through a spouse or other source.9Internal Revenue Service. Instructions for Form 7206 That deduction lowers adjusted gross income, which can pull down how much Social Security is taxable and whether Medicare surcharges hit.
Medicare Premium Surcharges
Higher income can raise your Medicare Part B and Part D premiums through the Income-Related Monthly Adjustment Amount, known as IRMAA. The Social Security Administration uses your tax return from two years earlier to set the surcharge. For 2026 premiums, that means your 2024 return.10Centers for Medicare & Medicaid Services. 2026 Medicare Parts A and B Premiums and Deductibles
The standard 2026 Part B premium is $202.90 per month. No surcharge applies until income exceeds $109,000 for an individual or $218,000 for a couple filing jointly. Above those levels, five progressively higher tiers push the Part B premium as high as $689.90 per month at income of $500,000 or more (or $750,000 or more for joint filers). Part D prescription drug plans carry parallel surcharges at the same income thresholds.10Centers for Medicare & Medicaid Services. 2026 Medicare Parts A and B Premiums and Deductibles
The two-year lookback is easy to miss. A high-earning year now can raise your Medicare costs two years down the road, well after you thought you had settled into retirement. If your income later drops because of a life-changing event, such as stopping work, cutting hours, losing a pension, divorce, or the death of a spouse, you can file Form SSA-44 to ask the agency to use a more recent year instead.11Social Security Administration. Form SSA-44 – Medicare Income-Related Monthly Adjustment Amount
Pensions, RMDs, and Continued Contributions
Pension Payments and Rehires
An employer pension (a defined benefit plan) generally cannot pay out until you have genuinely separated from service. If you and your employer both know at the time of “retirement” that you will immediately return to the same role, the IRS does not consider that a real retirement, and a prearranged termination and rehire can disqualify the plan and invalidate your distributions.12Internal Revenue Service. IRS Chief Counsel Advice 201147038 If you actually retire and then are later rehired by the same employer, the plan is allowed to suspend your monthly payments during the period of re-employment. Read the plan documents or ask the administrator before you go back.
Required Minimum Distributions
You must begin required minimum distributions from most retirement accounts by April 1 of the year after you turn 73. That age rises to 75 starting January 1, 2033. If you are still employed by the company that sponsors your 401(k) or 403(b), you can delay distributions from that specific plan until you actually retire, under the still-working exception.13Federal Register. Required Minimum Distributions Two limits apply. If you own more than 5% of the sponsoring business, you must start distributions on schedule regardless of whether you are still working. And the exception does not cover IRAs, which stay on the regular timetable.
Contributions While You Work
Working also keeps the contribution doors open. For 2026, you can defer up to $24,500 into a 401(k), 403(b), or most 457 plans. At 50 or older, you can add a catch-up of up to $8,000. Workers aged 60 through 63 qualify for a higher catch-up of $11,250 under a SECURE 2.0 Act provision, so a 61-year-old could shelter up to $35,750 in a 401(k) in a single year. Traditional IRA contributions are available if you have earned income, with a 2026 limit of $7,500, plus a $1,000 catch-up at 50 or older. Whether the traditional IRA contribution is deductible depends on your income and whether you or your spouse are covered by a workplace plan.14Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
If You Retire Before 65: Bridging to Medicare
Leaving work before 65 means finding health coverage until Medicare kicks in. COBRA lets you continue your former employer’s group plan, generally up to 18 months (36 in some cases), but you pay the full premium plus a 2% administrative fee. COBRA usually applies only to employers with 20 or more workers, though some states extend similar protections to smaller employers.15Medicare. COBRA Coverage
The Affordable Care Act marketplace is the other main route. Premium tax credits scale with household income relative to the federal poverty level, and an early retiree whose income has dropped can qualify for meaningful subsidies. Working part-time gives you more control over where your income lands on the subsidy scale, which can make a real difference in what you pay each month.