Purposeful FIRE💧Safe Withdrawal Rate Calculator
Estimate how much sustainable annual and monthly income your portfolio can generate, and see how much lower your required withdrawal rate becomes once Social Security is factored in.
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Social Security
Your Results
How Social Security Changes Your Required Rate
Income at Different Withdrawal Rates
What Is Safe Withdrawal Rate?
A safe withdrawal rate is the percentage of your portfolio you can spend each year in retirement with a high probability of never running out of money, even accounting for market downturns, sequencing risk, and a multi-decade time horizon.
It's the inverse problem of the FIRE number: instead of asking "how much do I need," it asks "given what I have, how much can I actually spend?"
How This Calculator Works
The calculator applies a withdrawal percentage to your portfolio to show annual and monthly income, then factors in your anticipated Social Security benefit to show the bigger picture: how much of your desired income Social Security covers on its own, and, most usefully, the withdrawal rate your portfolio actually needs to sustain once that guaranteed income is added in. For many retirees, the real number they need to pull from savings is meaningfully lower than the headline rate they were planning around.
Personal Considerations
The number on the screen is calm. Living off it during an actual market downturn often isn't. The single biggest threat to a withdrawal plan isn't usually the math, it's panic-selling into a 30% drawdown in year two of retirement, locking in losses that a static spreadsheet never modeled.
Before you retire, it's worth honestly rehearsing this: if your portfolio dropped 25% in your first year of withdrawals, would you stick to the plan, or would you act on fear? People who've never actually lived through a downturn while depending on their portfolio for income tend to underestimate how differently it feels in practice versus theory.
Social Security changes this calculus in a way that's easy to underweight emotionally even when you know it intellectually: it's income that doesn't move when the market drops. Seeing how much it lowers your actual required withdrawal rate can meaningfully reduce the anxiety of relying on your portfolio for 100% of your income, and for some retirees, the gap is large enough to justify a more aggressive portfolio allocation than they'd otherwise be comfortable with.
If what you're feeling goes beyond what a calculator can help with, licensed clinicians are available at SanaNetwork.com, a referral network founded by this site's founder, Dr. Yoendry Torres.
Frequently Asked Questions
Because "safe" depends on time horizon, market conditions at retirement, flexibility to cut spending in bad years, and how much risk of running short you're willing to accept. 4% is a commonly cited historical benchmark for a 30-year horizon, not a guarantee.
Many retirees use a fixed real (inflation-adjusted) withdrawal, but increasingly popular alternatives, like reducing withdrawals after a down market year, improve the odds of not running out, at the cost of some income flexibility.
No, it shows gross income from both portfolio and Social Security. Taxes depend on account type, your total income, and up to 85% of Social Security can itself be taxable depending on your other income, so actual spendable income will usually be lower than the figures shown.
Because Social Security is income your portfolio doesn't have to generate. Every dollar of guaranteed benefit is a dollar your investments don't need to cover, which directly reduces both the withdrawal rate you need and the portfolio's exposure to a bad sequence of early returns.