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Required Minimum Distributions Explained

In brief

Required minimum distributions are federally required withdrawals from many tax-deferred retirement accounts; the starting age, account balance, life-expectancy factor, aggregation rules, and deadline determine the calculation.

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The main idea

Treat an RMD as a minimum distribution and tax-compliance requirement—not as a recommended spending amount or a complete retirement-income strategy.

At a glance

Current starting ages

73 or 75

The applicable age depends on birth year under current federal law; verify the IRS table before planning a first distribution.

Internal Revenue Service ↗

General formula

Prior balance ÷ factor

The prior December 31 account balance is generally divided by the applicable IRS life-expectancy factor.

Internal Revenue Service ↗

Roth IRA owner RMD

None during life

A Roth IRA owner is not required to take lifetime distributions, although beneficiary rules still apply.

Internal Revenue Service ↗

Which accounts can require distributions

Traditional IRAs, SEP IRAs, SIMPLE IRAs, and many employer retirement plans are generally subject to required minimum distribution rules. Roth IRAs do not require lifetime distributions from the original owner, but inherited-account rules are separate.

A designated Roth account in an employer plan no longer requires lifetime RMDs for the original owner under current federal law. Plan documents, rollover timing, beneficiary status, and current IRS guidance still need to be checked for the particular account.

Sources: Internal Revenue Service

How the annual amount is calculated

The general owner calculation divides the account's prior December 31 balance by a distribution-period factor from the applicable IRS life-expectancy table. Most owners use the Uniform Lifetime Table. A different table can apply when the sole beneficiary is a spouse more than ten years younger.

The site's calculator uses Uniform Lifetime Table III and the balance and age entered by the visitor. It is an estimate: it does not determine the correct table, adjust an official year-end balance, combine accounts, or decide whether an exception applies.

Sources: Internal Revenue ServiceInternal Revenue Service

First-year timing can create two taxable distributions

The first RMD can generally be delayed until April 1 of the year after the applicable starting year. Later RMDs are generally due by December 31. Delaying the first one can therefore place the first and second taxable distributions in the same calendar year.

That timing can affect marginal tax rates, Medicare income-related premiums, taxation of Social Security benefits, and cash flow. A delayed first payment is an option to evaluate, not an automatic tax benefit.

Sources: Internal Revenue ServiceMedicare.gov

Aggregation is account-specific

An owner generally calculates an RMD separately for each IRA but may be able to take the combined IRA amount from one or more IRAs. Employer-plan RMDs generally cannot be combined in the same way and usually must be taken from each plan.

Inherited accounts, annuity contracts, workplace plans, and multiple-beneficiary situations can add rules the simple calculation does not capture. Confirm the custodian's records and the IRS instructions rather than assuming all tax-deferred balances can be pooled.

Sources: Internal Revenue ServiceInternal Revenue Service

The minimum is not the spending plan

An RMD determines how much must leave a tax-deferred account. It does not require the after-tax proceeds to be spent; money can generally be reinvested in a taxable account when appropriate. The distribution itself can still create taxable income.

A qualified charitable distribution may satisfy part or all of an eligible IRA owner's RMD when its requirements are met. Direct transfers, annual limits, eligible accounts, and charitable eligibility must be verified before relying on that treatment.

Sources: Internal Revenue ServiceInternal Revenue Service

Before acting

Questions to verify

  • Confirm the applicable RMD starting age and first deadline.
  • Collect the official prior-December-31 balance for every affected account.
  • Identify the correct IRS life-expectancy table and factor.
  • Calculate each account separately before applying any permitted aggregation.
  • Estimate taxes and Medicare effects before choosing first-year timing.
  • Coordinate any qualified charitable distribution before taking the full RMD.

Use the sourced tool

Estimate an owner RMD

Enter an age and prior-year-end balance to apply the IRS Uniform Lifetime Table III. The calculator keeps its scope and missing-rule limitations visible beside the result.

Open the RMD calculator →