Required Minimum Distribution (RMD) Calculator
Calculate your required minimum distribution from retirement accounts using the IRS Uniform Lifetime Table.
Results
Visualization
How It Works
The RMD Calculator determines how much money you must withdraw annually from your tax-deferred retirement accounts (like traditional IRAs and 401(k)s) once you reach a certain age, using IRS tables and rules. Understanding your RMD is crucial because failing to withdraw the required amount results in a steep 25% penalty on the shortfall (or 10% for certain missed distributions before 2023), plus income taxes owed on the distribution itself. This tool is designed for both quick estimates and detailed planning scenarios. Results update instantly as you adjust inputs, making it easy to compare different approaches and understand how each variable affects the outcome. For best accuracy, use precise measurements rather than rough estimates, and consider running multiple scenarios to establish a realistic range of expected results.
The Formula
Variables
- Account Balance — The total value of your retirement account(s) as of December 31 of the prior calendar year. This is the figure used to calculate your RMD for the current year, not the current balance.
- Your Age — Your age as of December 31 of the year for which you're calculating the RMD. The IRS uses age at year-end, not your current age during the year.
- Life Expectancy Factor — A divisor published by the IRS in the Uniform Lifetime Table that represents the number of years you're statistically expected to live. This factor decreases each year, increasing the percentage you must withdraw.
- Required Minimum Distribution (RMD) — The dollar amount you must withdraw from your retirement account in a given calendar year to comply with IRS rules and avoid penalties.
- Effective Withdrawal Rate — The percentage of your account balance being withdrawn as an RMD, calculated as (RMD ÷ Account Balance) × 100. This shows what portion of your nest egg you're required to take annually.
Worked Example
Let's say you're 72 years old with a traditional IRA balance of $500,000 as of December 31 of last year. According to the IRS Uniform Lifetime Table, the life expectancy factor for age 72 is 27.4. To calculate your RMD: $500,000 ÷ 27.4 = $18,248.18. This means you must withdraw at least $18,248 during the current calendar year. Your effective withdrawal rate is ($18,248 ÷ $500,000) × 100 = 3.65%, showing that you're required to withdraw about 3.65% of your account annually. If you fail to withdraw this amount, the IRS will impose a 25% penalty on the shortfall ($4,562 in this scenario), in addition to income taxes owed.
Practical Tips
- Your first RMD is due by April 1 of the year following the year you turn 73 (as of 2023; this was age 72 before 2023 due to the SECURE Act). If you miss this deadline, the penalty is severe, so mark your calendar early.
- You can aggregate RMDs across multiple IRAs—calculate each separately but withdraw the total from one or more accounts. However, you cannot aggregate 401(k) RMDs with IRA RMDs; those must be withdrawn separately.
- Roth IRAs have no RMD during the account owner's lifetime, but inherited Roth IRAs and Roth 401(k)s do have RMDs. If you have both Traditional and Roth accounts, factor this into your planning.
- Your RMD is based on last year's December 31 balance, so market fluctuations during the current year don't change the amount due. If markets crash, you still owe the same RMD percentage.
- Consider coordinating RMDs with other income sources and tax brackets. Bunching RMD withdrawals into lower-income years or using qualified charitable distributions (QCDs) if eligible can reduce your tax burden significantly.
Frequently Asked Questions
What is the RMD age and when do I start?
As of 2023, you must begin taking RMDs by April 1 of the year after you turn 73 (this changed from age 72 due to the SECURE Act passed in 2019). For all subsequent years, RMDs are due by December 31. If you delay your first RMD until April 1 of the following year, you'll owe two RMDs that year (one for the delay year and one for the current year).
What happens if I don't take my full RMD?
The IRS imposes a penalty of 25% on the amount not withdrawn (this penalty was reduced from 50% under the SECURE 2.0 Act). Additionally, you still owe ordinary income tax on the shortfall amount. For example, if your RMD is $10,000 and you withdraw $6,000, you face a $1,000 penalty (25% of $4,000) plus income tax on the full $10,000.
Can I withdraw more than my RMD?
Yes, withdrawing more than your RMD is always permitted and counts toward satisfying the requirement. Many people withdraw extra amounts to manage tax brackets, fund living expenses, or satisfy other financial goals. Extra withdrawals don't reduce the RMD you owe in future years.
How is RMD different for inherited retirement accounts?
Inherited IRAs and 401(k)s have different RMD rules depending on your relationship to the deceased and when they died. Generally, non-spouse beneficiaries must withdraw the entire account within 10 years (under current rules), while spouses can treat inherited IRAs as their own. The RMD calculator uses standard rules for your own accounts; inherited accounts require separate calculation based on your status and the deceased's age.
Does my RMD change every year?
Yes, your RMD typically increases each year because the life expectancy factor from the IRS table decreases as you age, making the divisor smaller. For example, the factor at age 72 is 27.4, but at age 80 it's 20.2—requiring a larger percentage withdrawal. Additionally, if your account balance grows, your RMD will be higher.
Sources
- IRS Publication 590-B: Distributions from Individual Retirement Accounts
- IRS Uniform Lifetime Table
- SECURE Act and SECURE 2.0 Act Changes to RMD Rules
- Fidelity: Required Minimum Distribution Calculator and Guide
- Vanguard: Understanding Required Minimum Distributions