Age GuideIRS Factor: 11.5

RMD at Age 91 — IRS Distribution Factor & 2026 Calculator

What is the Required Minimum Distribution for a 91-year-old?

At age 91, the IRS Uniform Lifetime Table assigns a distribution period of 11.5 years. This means your Required Minimum Distribution equals your December 31 prior-year account balance divided by 11.5. On a $500,000 account, the RMD is approximately $43,478 — about 8.7% of the account value.

At age 91, the distribution factor is 11.5 years, producing an RMD of approximately $43,478 on a $500,000 balance — about 8.70%. The IRS table continues well beyond age 91 (to age 120), with factors decreasing to as low as 2.0 at age 120.

Calculate Your 2026 RMD

Age 91 · Balance $500,000 → ~$43,478 RMD

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Formula

RMD = Balance ÷ 11.5 (IRS Uniform Lifetime Table, age 91)

IRS Distribution Period — Age 91

11.5

Distribution Period (years)

8.7%

% of Balance Required

$43,478

RMD on $500K Balance

$86,957

RMD on $1M Balance

Key RMD Rules

  • 1IRS distribution factor at age 91: 11.5 years.
  • 2RMD formula: December 31 prior-year balance ÷ 11.5.
  • 3On a $500,000 account, this produces an RMD of approximately $43,478.
  • 4Deadline: December 31 of the current year (or April 1 of the following year for your very first RMD only).
  • 5The 25% penalty for missing an RMD (reduced to 10% if corrected within the correction window) applies regardless of age.
  • 6The IRS Uniform Lifetime Table continues to age 120 — RMDs are required as long as the account has a balance.

Common RMD Mistakes to Avoid

  • Using the current year's balance instead of the December 31 prior-year balance — always use the prior December 31 value.
  • Forgetting to take RMDs from each employer plan (401k, 403b) separately — you cannot aggregate multiple employer plans.
  • Assuming the RMD percentage stays constant — it increases every year as the distribution factor decreases.

Frequently Asked Questions

Disclaimer: This content is for informational purposes only and does not constitute tax or financial advice. RMD rules are based on IRS Publication 590-B and SECURE 2.0 Act provisions. Always consult a qualified tax professional or financial advisor for guidance specific to your situation. IRS rules may change; verify current requirements at irs.gov.