Required minimum distributions (RMDs) from retirement accounts
The IRS requires owners of tax-deferred retirement accounts such as traditional IRAs and employer-sponsored 401(k) plans to withdraw a minimum amount each year after reaching a specified starting age. The withdrawal is calculated by dividing the prior-year-end account balance by a life expectancy factor from IRS Publication 590-B.
This calculator uses the Uniform Lifetime Table (Table III) for most account owners and the joint life expectancy table (Table II) when a spouse is the sole beneficiary and more than 10 years younger. Life expectancy factors reflect the 2025 IRS tables. For retirement income planning beyond mandatory withdrawals, explore the 401(k) calculator.
RMD calculation formula
The life expectancy factor comes from IRS Table III (Uniform Lifetime) for most taxpayers. When your spouse is the sole primary beneficiary and more than 10 years younger, Table II joint life expectancy may produce a smaller divisor and therefore a smaller RMD.
SECURE Act 2.0 starting ages
- Born 1950 or earlier: RMDs begin at age 72
- Born 1951 through 1959: RMDs begin at age 73
- Born 1960 or later: RMDs begin at age 75
Worked example
An account owner born in 1951 turns 73 in 2024. The account balance on December 31, 2023 was $300,000. Under SECURE Act 2.0, RMDs start at age 73. The Table III factor for age 73 is 26.5. RMD = $300,000 ÷ 26.5 ≈ $11,320.75.
Frequently asked questions
Which IRS table does this calculator use?
How do SECURE Act 2.0 ages affect my RMD?
When is the RMD deadline?
Does Roth IRA require RMDs during the owner lifetime?
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Resources and references
The formulas and methods in this calculator were checked against these independent sources.