Calculators give you the number. These three books give you the framework — when to convert, how to sequence withdrawals, and how to integrate with estate planning. Required reading if you're actually planning retirement, not just curious.
When you withdraw from a traditional 401(k) or IRA, the full withdrawal is treated as ordinary income and taxed at your federal and state income tax rates. If you withdraw before age 59.5, you also pay a 10% early withdrawal penalty on top of regular taxes.
Social Security benefits may also be taxed depending on your provisional income (other income + withdrawals + 50% of SS benefits). If provisional income exceeds $34,000 (single) or $44,000 (married), up to 85% of your Social Security becomes taxable. Between $25,000-$34,000 (single) or $32,000-$44,000 (married), 50% is taxable.
This calculator computes the tax attributable to your withdrawal by calculating total federal and state tax on all income sources, then allocating proportionally to the withdrawal amount. This gives you a realistic picture of how much of your withdrawal you actually keep.
Roth 401(k) and Roth IRA withdrawals are generally tax-free if the account has been open for at least 5 years and you are over 59.5. This calculator is designed for traditional (pre-tax) retirement account withdrawals.
Frequently Asked
How much can I withdraw from my retirement account each year?+
The most widely cited rule is the 4% rule from William Bengen's 1994 research: withdraw 4% of your starting portfolio in year one, then increase that dollar amount by inflation each year. On a $1 million portfolio that's $40,000 in year one. Modern research (Bengen's own 2020 update, Morningstar's annual State of Retirement Income report) suggests 4.7-5.0% is sustainable for a balanced portfolio, while Guyton-Klinger guardrails methods can support higher initial rates with adjustments. Your actual safe withdrawal rate depends on portfolio allocation, time horizon, and willingness to cut spending in down markets.
What is the 4% rule for retirement withdrawals?+
The 4% rule says you can withdraw 4% of your initial retirement portfolio in the first year, then adjust that dollar amount upward by inflation each subsequent year, and have a 95%+ probability of not running out of money over a 30-year retirement. It assumes a 50-75% stock / 25-50% bond portfolio. The rule was derived from rolling 30-year periods of U.S. market history starting in 1926. It does not account for taxes — your gross withdrawal needs to be higher than 4% if you're pulling from a Traditional 401(k) or IRA, since income tax comes out of that distribution.
How are 401(k) withdrawals taxed?+
Traditional 401(k) withdrawals are taxed as ordinary income at your marginal federal rate plus your state tax rate (if your state taxes retirement income — Illinois, Mississippi, and Pennsylvania exempt it; most others don't). Roth 401(k) withdrawals are tax-free if you're over 59½ and the account has been open at least 5 years. Withdrawals before age 59½ from either account type face a 10% early-withdrawal penalty on top of any income tax, with limited exceptions (substantially equal periodic payments under IRC §72(t), first-time home purchase, qualified medical expenses, etc.).
When do I have to start taking retirement withdrawals?+
Required Minimum Distributions (RMDs) from Traditional IRAs and 401(k)s begin at age 73 if you were born 1950-1959, or age 75 if you were born 1960 or later, per the SECURE Act 2.0. You can take voluntary withdrawals starting at age 59½ without penalty. Roth IRAs have no RMD requirement during your lifetime; Roth 401(k)s lost the RMD requirement starting in 2024. Inherited IRAs follow separate rules — most non-spouse beneficiaries must empty the account within 10 years under the SECURE Act.
How long will my retirement savings last?+
Most calculators including this one project lifespan based on starting balance, withdrawal rate, expected investment return, and inflation. A common rule of thumb: $1 million at 4% withdrawal with 6% returns and 3% inflation lasts roughly 30 years. Higher returns extend lifespan; higher withdrawal rates shorten it dramatically — a 6% withdrawal rate may run out in 20 years even with strong returns. Sequence-of-returns risk (poor early-retirement market years) is the single biggest threat to plan longevity and is why most planners recommend a more conservative allocation in the first 5-10 years of retirement.
What is sequence of returns risk?+
Sequence of returns risk is the danger that poor investment returns early in retirement will permanently damage a portfolio even if average returns over the full period are acceptable. A retiree withdrawing 4% who experiences a 30% market drop in year one is forced to sell at depressed prices and may never recover. The same 30% drop occurring in year 20 has minimal impact because the portfolio has already grown substantially. Mitigation strategies include: bucket strategy (cash for years 1-3, bonds for years 4-10, stocks for 10+), dynamic spending rules (Guyton-Klinger guardrails), and starting with a more conservative allocation that gradually shifts to stocks over the first decade.
