RMD Calculator

Calculate your Required Minimum Distribution (RMD) from a retirement account based on your age and account balance.

Based on the IRS Uniform Lifetime Table (example)

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For educational purposes only. Consult a financial advisor.

What is an RMD Calculator?

An RMD calculator estimates the Required Minimum Distribution you must withdraw each year from Traditional IRAs, 401(k)s, and similar tax-deferred retirement accounts once you reach a certain age. The IRS requires these withdrawals so that tax-deferred savings are eventually taxed, using a "distribution period" divisor based on your age from the IRS Uniform Lifetime Table. This calculator also projects how your RMDs and account balance might change over the following years.

How to Use This RMD Calculator

  1. Enter your account balance as of the prior year-end — RMDs are calculated based on the balance at the end of the previous calendar year.
  2. Enter your age this year — RMDs generally begin at age 73 (2025 example — verify the current RMD starting age, as it has changed in recent legislation).
  3. Enter an expected annual return (example — enter your expected rate) to project how your balance and future RMDs might evolve over the following years.
  4. Review your required minimum distribution for this year, the distribution period used, and a projection of RMDs and balance for upcoming years.

How is RMD Calculated?

The RMD is calculated by dividing your account balance (as of the prior year-end) by a "distribution period" number from the IRS Uniform Lifetime Table, which is based on your age this year. As you get older, the divisor decreases, meaning a larger percentage of your remaining balance must be withdrawn each year.

Formula: RMD = Prior Year-End Account Balance ÷ Distribution Period (from the IRS Uniform Lifetime Table for your age).

Example: For a $500,000 account balance and an age of 75, the IRS Uniform Lifetime Table distribution period is 24.6 years (example — based on the IRS table), so the RMD would be $500,000 ÷ 24.6 ≈ $20,325 for the year. (Note: all figures in this example are for illustration purposes only and are based on an example IRS table — verify the current table for your situation.)

RMDs in the US

RMD rules apply to Traditional IRAs, SEP IRAs, SIMPLE IRAs, and most employer-sponsored retirement plans like 401(k)s and 403(b)s — Roth IRAs are generally exempt from RMDs during the original owner's lifetime. The age at which RMDs must begin has changed in recent years due to legislation (SECURE Act and SECURE 2.0), moving from 70½ to 72 to 73, with a further increase to 75 scheduled for later years — always verify the current required beginning age for your birth year. Failing to take your full RMD by the deadline can result in a significant excise tax penalty on the shortfall (example consideration — verify current penalty rules, as they've also been reduced in recent legislation).

Tips for Using This RMD Calculator

  • Use your account balance as of December 31 of the prior year — not your current balance — since that's the figure the IRS uses for the RMD calculation.
  • If you have multiple Traditional IRAs, RMDs can generally be aggregated and taken from any one or combination of them, but 401(k) RMDs generally must be taken separately from each plan — check current rules for your account types.
  • Consider taking your RMD early in the year rather than waiting until the deadline, to avoid the risk of missing the deadline due to processing delays.
  • Remember RMD withdrawals are generally taxed as ordinary income — factor this into your overall tax planning for the year.

Frequently Asked Questions

At what age do RMDs start?

RMDs generally begin at age 73 (2025 example). This age has changed multiple times due to recent legislation (it was previously 70½, then 72), with a further increase to 75 scheduled for later years — verify the current required beginning age for your birth year.

How is the RMD divisor determined?

The divisor comes from the IRS Uniform Lifetime Table, which assigns a "distribution period" number based on your age. The table used in this calculator is an example — always verify against the current official IRS table when calculating your actual RMD.

What happens if I don't take my full RMD?

Missing all or part of your RMD can result in an excise tax penalty on the shortfall amount. Penalty rates have been reduced in recent legislation but can still be significant — consult a tax professional if you've missed an RMD.

Do Roth IRAs have RMDs?

No. Roth IRAs are generally not subject to RMDs during the original owner's lifetime. However, inherited Roth IRAs may have different distribution requirements for beneficiaries.

Which account balance should I use for this calculator?

Use your account balance as of December 31 of the prior year — this is the figure the IRS uses to calculate the current year's RMD, not your current account balance.

Are RMD withdrawals taxable?

Generally yes — RMDs from Traditional IRAs and 401(k)s are typically taxed as ordinary income in the year you take them. This calculator estimates the required withdrawal amount only and doesn't calculate any resulting tax liability.

Disclaimer: The information, distribution periods, and figures provided on this page are for educational and illustrative purposes only and are based on an example IRS Uniform Lifetime Table. They do not represent the current official IRS table or your actual required minimum distribution. RMD rules and ages change periodically due to legislation. Always verify current rules with the IRS and consult a qualified tax professional before making any retirement account decisions.