Glossary term
RMD Table
An RMD table is an IRS life expectancy table used to calculate required minimum distributions from certain retirement accounts.
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What Is an RMD Table?
An RMD table is an IRS life expectancy table used to calculate required minimum distributions from certain retirement accounts. The table supplies a divisor, called a distribution period or life expectancy factor, that turns an account balance into a minimum annual withdrawal.
RMD tables matter because required distributions are formula-driven. The right table depends on the account owner's status, beneficiary situation, and whether the calculation is for the owner during life or for a beneficiary after death.
Key Takeaways
- RMD tables provide IRS factors used to calculate required minimum distributions.
- The Uniform Lifetime Table is used for many lifetime RMDs.
- The Single Life Expectancy Table is often relevant for certain inherited accounts.
- The Joint Life and Last Survivor Expectancy Table applies in narrower spouse-beneficiary situations.
- The table is only one part of the RMD rules; eligibility and timing rules still matter.
How RMD Tables Work
The general calculation divides the prior year-end account balance by the applicable IRS factor. A larger factor means a smaller required withdrawal. As the account owner ages, the divisor generally declines, which usually increases the required distribution percentage.
The prior year-end account balance is the account value used as the starting point. The IRS distribution period is the divisor from the applicable table.
Main IRS RMD Tables
Table | Common use |
|---|---|
Uniform Lifetime Table | Most lifetime RMDs for account owners. |
Single Life Expectancy Table | Certain inherited account and beneficiary calculations. |
Joint Life and Last Survivor Expectancy Table | Some cases involving a sole spouse beneficiary more than 10 years younger. |
Where Mistakes Happen
RMD mistakes often come from using the wrong table, the wrong account balance, or the wrong age. Beneficiary rules can be especially tricky because some beneficiaries must follow a 10-year rule, some may need annual distributions, and some can use life expectancy treatment.
The table also does not decide whether an account is subject to RMDs. Roth IRAs, inherited accounts, employer plans, and traditional IRAs can follow different rules. The table is the calculation layer after the rule set is identified.
Another common mistake is assuming all retirement accounts can be combined for RMD purposes. Some IRA RMDs can be aggregated, but employer plan RMDs and inherited account rules can work differently. The correct table is only helpful if the correct account grouping is used.
The Bottom Line
An RMD table provides the IRS divisor used to calculate required minimum distributions. The number is simple once the right table applies, but selecting the correct table is the part that often drives the tax result.