Part-Time Income in Retirement Calculator
See how a few hours of part-time work in retirement offsets portfolio withdrawals and how large a nest egg that income is equivalent to.
How it works
Annual income = hours × wage × weeks · Portfolio equivalent = annual income ÷ safe withdrawal rate
Part-time work in early retirement does double duty: it covers spending directly and, just as importantly, lets your portfolio keep compounding instead of being drawn down. Dividing that earned income by your safe withdrawal rate reveals how large a nest egg it substitutes for — at a 4% rate, every $4,000 of annual earnings replaces roughly $100,000 you would otherwise need saved. That is why even modest work can sharply reduce the savings target or the risk of running out.
Worked example
Working 15 hours a week at $20 for 48 weeks earns $14,400 a year. At a 4% safe withdrawal rate, that income is equivalent to a $360,000 portfolio you no longer need to draw on.
Frequently asked questions
How does part-time work help so much?
It cuts withdrawals during the fragile early years of retirement, easing sequence-of-returns risk, and it lets investments keep growing. The portfolio-equivalent figure shows how much saved capital that earned income effectively stands in for.
Will working affect my Social Security or benefits?
It can. Before full retirement age, earnings above an annual limit temporarily reduce Social Security benefits, and extra income may raise your tax bracket. Check the current earnings limits for your situation.
What safe withdrawal rate should I use?
Four percent is the traditional benchmark, but a more cautious 3–3.5% is common for long or early retirements. A lower rate makes each dollar of earned income equivalent to a larger portfolio.
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Educational estimate, not financial advice.