Every RMD calculator simplifies something. Here is exactly what this one does, so you know when your real number will differ.
Uniform Lifetime Table
Every divisor comes from the IRS Uniform Lifetime Table (Table III) in the life-expectancy regulations effective for 2022 and later. If your sole beneficiary is a spouse more than 10 years younger, the Joint Life and Last Survivor Table applies instead and your actual RMD would be lower.
Age is by calendar year
We use the age you attain during the distribution year — birth year only, not month or day. That is the right input for the divisor, but your required beginning date depends on your actual birthday.
RMD age from SECURE 2.0
Age 73 if you were born 1951–1959, and 75 if born in 1960 or later. Born 1950 or earlier, your RMDs already began under the prior age 70½ or 72 rules and this tool assumes age 72 for the divisor.
One account at a time
The estimate covers the single balance you enter. IRA RMDs may be aggregated and taken from any one IRA; each 401(k), 403(b), or other employer plan must satisfy its own RMD separately. Roth accounts require none.
Prior year-end balance
Each year’s RMD is calculated on the December 31 balance of the year before. The first row uses the balance you entered; later rows use a projected balance, not a real statement.
Flat growth, distributions at year end
The projection applies your assumed return once per year and subtracts the RMD at year end. Real markets, contributions, rollovers, and mid-year withdrawals will all change the outcome.
No tax withholding modeled
Amounts shown are gross distributions. RMDs from pre-tax accounts are ordinary income in the year received; federal and state withholding, IRMAA effects, and Social Security taxation are not calculated here.
Rules as of today
Based on current law including SECURE 2.0. IRS tables and thresholds change, and inherited accounts, annuitized balances, still-working owners, and QLACs follow separate rules this tool does not cover.
This tool provides estimates for educational purposes and is not tax, legal, or investment advice. It does not cover inherited or beneficiary accounts, annuitized balances, qualified longevity annuity contracts, or plans with unusual distribution provisions. Confirm your actual required distribution with your plan administrator, IRA custodian, or CPA before withdrawing.