Required Minimum Distributions: What RMDs Actually Require

What an RMD is

A required minimum distribution, or RMD, is the minimum amount that federal tax rules can require you to withdraw from certain retirement accounts each year after the applicable starting point.

RMDs matter because Traditional retirement accounts generally received tax deferral on the way in or while invested. The government eventually requires taxable dollars to begin coming out.

An RMD is not a recommendation for how much you should spend. You can withdraw more than the required amount. The RMD is simply the minimum distribution requirement under the tax rules.

The starting age changed

SECURE 2.0 changed the applicable RMD ages.

Under current rules, the applicable age is generally:

• 73 for people who reach age 73 before 2033; and
• 75 for people who reach age 74 after 2032.

The exact required beginning date can depend on the account and employment circumstances, so age alone is not enough to determine every case.

Which accounts can be affected?

RMD rules can apply to tax-deferred retirement arrangements such as Traditional IRAs and many employer retirement plans.

A major recent change is that designated Roth accounts inside employer plans are no longer subject to lifetime RMDs for the original owner under the current federal rules. Roth IRA treatment was already different from Traditional IRA treatment.

Inherited accounts have their own distribution rules. Do not assume that the original owner's age rules apply to an inherited IRA or inherited workplace plan.

How the annual amount is generally calculated

A common RMD framework uses:

prior year-end account balance ÷ IRS life-expectancy factor

The applicable IRS table and factor depend on the situation.

Simplified example

Suppose an account subject to RMD rules had a prior year-end balance of $1,000,000, and suppose the applicable life-expectancy factor were 25.

The simplified calculation would be:

$1,000,000 ÷ 25 = $40,000

That $40,000 would be the modeled minimum distribution for the year under those assumptions.

This is an illustration only. The actual factor, account balance and account rules have to be confirmed for the applicable year.

Why RMD planning starts before RMD age

RMDs can push taxable income higher later in retirement. That can interact with:

• federal income tax brackets;
• taxation of Social Security benefits;
• Medicare IRMAA surcharges;
• state retirement-income taxes;
• capital gains;
• charitable giving;
• Roth conversions before RMDs begin.

That does not mean everyone should convert Traditional dollars to Roth before RMD age. A conversion creates taxable income today. The useful question is whether paying some tax earlier improves the household's lifetime tax and retirement-income picture under reasonable assumptions.

RMD versus spending need

A retiree may need less cash than the required distribution.

If an RMD exceeds spending needs, the excess does not have to be spent. After satisfying the distribution requirement and paying any applicable tax, remaining money can generally be saved or invested in a taxable account.

That distinction matters: RMD is a tax-distribution rule, not a spending rule.

Charitable planning can matter

Eligible IRA owners may be able to use qualified charitable distributions under separate rules. A QCD can have different tax mechanics from withdrawing money and then making a normal charitable gift.

Because QCD eligibility, annual limits and reporting rules matter, treat this as a tax-planning topic to verify for the applicable year rather than a generic “donate your RMD” shortcut.

Common mistakes

• Waiting until the final month of the first RMD year to understand the rules.
• Assuming every retirement account has the same RMD treatment.
• Applying original-owner rules to inherited accounts.
• Thinking an RMD must be spent.
• Ignoring Medicare IRMAA when modeling taxable retirement income.
• Doing a large Roth conversion solely to “avoid RMDs” without comparing the current tax bill.
• Using an old RMD age from before SECURE 2.0.

A practical checklist

A few years before the applicable RMD age:

1. Inventory retirement account types — not account numbers.
2. Separate Traditional, Roth and inherited accounts.
3. Estimate future Social Security and pension income.
4. Model baseline taxable withdrawals.
5. Check whether future income could cross Medicare IRMAA thresholds.
6. Compare optional Roth conversions before RMD age under several tax-rate assumptions.
7. Review beneficiary designations because inherited-account rules matter later.
8. Recheck IRS guidance annually because tables and limits can change.

Bottom line

RMDs are straightforward in concept — the government eventually requires minimum withdrawals from certain tax-deferred retirement accounts — but they can have large second-order effects. The best planning happens before the first mandatory distribution, when you still have more flexibility over income timing.