Part-Time Work in Retirement – Pros, Cons & Tax Effects

Retirement doesn't have to be binary. More and more people are choosing a middle path—stepping back from full-time careers but continuing to work in some capacity, whether for income, engagement, or simply because they love what they do.

Part-time work in retirement can be genuinely rewarding. But it also has financial implications that are worth understanding before you dive in—especially how earned income interacts with Social Security benefits and your overall tax picture.

Let's start with the upside. Working part-time—even modestly—has financial and non-financial benefits that are hard to overstate.

On the financial side, earning even $1,500–$2,000 per month can significantly reduce how much you need to withdraw from your retirement portfolio each year. That means less sequence-of-returns risk in your early retirement years, more time for your investments to compound, and a larger cushion for later life when healthcare costs tend to rise.

On the personal side, many retirees who return to some form of work report higher life satisfaction, stronger social connections, a greater sense of purpose, and better cognitive health. The structure, stimulation, and human contact that work provides are genuinely valuable—and hard to replicate purely through leisure.

Here's where things get nuanced. If you're collecting Social Security and haven't reached your Full Retirement Age (FRA), your benefits may be temporarily reduced if your earned income exceeds certain thresholds. This is called the Earnings Test.

For 2026, the key thresholds are:

• If you're under FRA for the full year: $1 in benefits is withheld for every $2 you earn above $22,320

• In the year you reach FRA: $1 in benefits is withheld for every $3 you earn above $59,520 (only counting months before your FRA birthday)

• Once you reach FRA: no earnings test applies—you can earn unlimited income with no reduction in benefits

Critically, withheld benefits are not lost forever. Once you reach your FRA, Social Security recalculates your monthly benefit upward to account for the months it withheld payments. So you'll eventually recover most of what was temporarily withheld—though the timing matters.

The practical takeaway: if you're under FRA and thinking about working part-time, either keep earned income below the threshold, understand the withholding math, or wait to claim Social Security until you reach FRA (which also increases your lifetime benefit).

Earned income in retirement can have a ripple effect through your tax return that catches many people off guard.

Social Security Taxability

Up to 85% of your Social Security benefit can be taxable, depending on your "combined income" (AGI + nontaxable interest + 50% of Social Security). Adding part-time earnings to the mix raises your combined income—potentially pushing more of your Social Security benefit into taxable territory.

Medicare Premium Surcharges (IRMAA)

If your income crosses certain thresholds, Medicare Part B and Part D premiums increase significantly. These surcharges, called IRMAA (Income-Related Monthly Adjustment Amount), are based on your income from two years prior. A good year of part-time income in 2025 could raise your Medicare premiums in 2027. It's worth modeling this with a tax advisor.

Self-Employment Tax

If you work as a freelancer, consultant, or independent contractor, you'll owe self-employment tax of 15.3% on net earnings up to the Social Security wage base. This can come as a surprise if you've always received a W-2. Consider setting aside 25–30% of freelance income for taxes.

Roth Conversion Opportunity

On the positive side, part-time income gives you earned income, which means you can continue contributing to a Roth IRA (subject to income limits). If you're in a lower tax bracket in early retirement, it can also create opportunities for Roth conversions that benefit you in the long run.

Not all part-time work is created equal. The best retirement work arrangements tend to offer flexibility, a connection to your interests or expertise, and a workload that energizes rather than exhausts.

Popular options include:

• Consulting or coaching in your former industry—often well-compensated with high flexibility

• Teaching or tutoring—community colleges, online platforms, or private instruction

• Part-time roles with former employers—phased retirement arrangements are increasingly common

• Seasonal work—retail during holidays, tax prep in spring, tourism in summer

• Passion pursuits that generate income—crafts, photography, music, writing

• Service roles—driving for rideshares, working at a national park, or volunteering that comes with stipends

A few questions worth asking before taking on part-time work in retirement: Will this affect my ability to draw down from the right accounts at the right time? Have I talked with a tax advisor about how this income will interact with Social Security and Medicare? Does this work reflect how I actually want to spend my time—or is it just habit?

Part-time work can be one of the best things about retirement—especially when it's chosen freely, fits your life, and supplements rather than stresses your financial plan.