YourRMD

A working reference for people who process retirement plan distributions.

IRS RMD tables: which one applies?

Three tables in Reg. §1.401(a)(9)-9, three distinct uses.

TableUsed forMethod
III — Uniform LifetimeNearly every living participantAttained age in the distribution year
II — Joint Life & Last SurvivorOnly where the spouse is sole beneficiary for the entire year and is more than 10 years youngerBoth attained ages, tested afresh each year
I — Single LifeBeneficiaries of a deceased participantFixed term reduced by one each year — except a sole spouse, who recalculates

Attained age, not age today

Every lookup uses the age the person reaches on their birthday in that calendar year, not their age on the date of calculation. Someone born in November is treated as their year-end age from 1 January onward.

Table II: more than 10 years, tested every year

The threshold is more than 10 years younger. A spouse exactly 10 years younger does not qualify. And because attained ages shift, the test must be run for each distribution year rather than settled once — a couple can move in and out of eligibility across a schedule.

The spouse must also be the sole beneficiary for the entire year. Adding a contingent beneficiary mid-year breaks it.

The recalculation trap in Table I

A sole surviving spouse recalculates — looking up Table I afresh at their attained age each year. Every other beneficiary takes an initial factor and subtracts one each year. The two methods diverge immediately and the gap compounds.

Applying subtract-one to a spouse understates their life expectancy every year after the first, and produces a distribution that is too large and accelerates over time.

The 2022 update, and the reset

All three tables were replaced effective 1 January 2022 to reflect longer life expectancies. For a beneficiary whose schedule started earlier, the transition is a reset: recompute the initial factor under the new table for the first distribution year, then subtract one for each year elapsed since. You do not simply continue the old series.

Check a real case. The calculator applies every rule on this page — SECURE 2.0 applicable ages, the before/after-RBD test, EDB classification and the 2024 final regulations.

Open the RMD calculator

Estimates and general information only. This page summarises rules under IRC §401(a)(9) and the regulations thereunder. It is not legal or tax advice and does not cover every fact pattern. Verify anything consequential against the regulations or with a qualified adviser.