First-Year RMD for 2026: Deadline, Aggregation, Withholding, and Evidence Worksheet

A first required minimum distribution is not simply “take some money after age 73.” It is a year-specific compliance calculation with four separate jobs: identify the first distribution year, calculate each account before combining anything, give each custodian workable instructions, and preserve proof that the gross amounts left the correct accounts by the deadline. A dashboard estimate is useful, but the account owner remains responsible for the correct amount and timing.

This worksheet is for an original account owner whose first RMD year is 2026, especially someone born in 1953 who reaches age 73 during 2026. It is not for an inherited account, a deceased owner’s final-year RMD, a trust beneficiary, or a person with a qualified longevity annuity contract or unusual annuity valuation. Those cases can use different rules. It is educational information, not individualized tax, legal, investment, or plan advice.

The 2026 first-year deadline has two dates, not one

For traditional, SEP, and SIMPLE IRAs, an owner generally starts RMDs for the year they reach age 73. The first distribution can be postponed until April 1 of the following calendar year. Therefore, a person whose first IRA distribution year is 2026 may take that 2026 RMD by April 1, 2027. The IRS RMD topic page also makes the follow-on rule clear: the 2027 RMD is due by December 31, 2027. Delaying the first payment does not delay the second one.

That creates a planning choice, not a free extra year. Taking the 2026 RMD by December 31, 2026 generally places the 2026 distribution in 2026. Waiting until the first quarter of 2027 generally puts both the delayed 2026 RMD and the regular 2027 RMD into 2027. Two gross distributions in one tax year can affect marginal tax rates, taxable Social Security, Medicare income-related premiums in a later year, deductions, credits, and state tax. The correct choice depends on the complete return, not merely the federal bracket.

Workplace plans require a separate employment check. The IRS RMD FAQs say participants in a workplace plan may be able to delay RMDs until the year they retire, but the delay does not apply to a 5% owner, and the plan’s own terms matter. An IRA has no still-working exception. Do not use current employment to postpone an IRA RMD.

The same IRS FAQ explains that Roth IRAs and designated Roth accounts in 401(k) or 403(b) plans do not require lifetime RMDs from the living owner. Beneficiaries are different. Never net a Roth balance into a traditional-account calculation merely because both appear under one login.

Build account groups before doing any arithmetic

Aggregation is where a correct per-account calculation can become an incorrect withdrawal. The IRS comparison chart provides the clean operating rule:

• Calculate every traditional, SEP, and SIMPLE IRA separately. Then their RMDs may generally be totaled and taken from one or more IRAs in that IRA group.
• Calculate every 403(b) contract separately. The 403(b) requirements may generally be totaled and taken from one or more 403(b) contracts.
• Satisfy a 401(k), 457(b), profit-sharing plan, or other defined contribution plan separately from each plan account. An IRA distribution does not cure a 401(k) shortfall.
• Do not mix an inherited IRA into the owner’s IRA aggregation group.

The current regulation also treats SEP and SIMPLE IRAs as IRAs for these distribution rules and states that the IRA’s prior December 31 balance is the starting value. That rule is in 26 CFR 1.408-8. A rollover in transit, annuity, or adjustment near year-end can complicate the balance, so obtain a written custodian calculation rather than silently editing the statement figure.

Worked calculation: first calculate, then aggregate

The basic owner formula is:

Prior December 31 adjusted account balance ÷ applicable life-expectancy denominator = account RMD

For a 2026 owner RMD, start with the December 31, 2025 balance. The usual denominator comes from the Uniform Lifetime Table. A different Joint and Last Survivor table generally applies when the spouse is the sole beneficiary and is more than ten years younger. Publication 590-B contains the tables and explains basis, rollover, and reporting issues. The IRS also provides separate RMD worksheets for the more-than-ten-years-younger-spouse situation and for everyone else.

Assume Jordan turns 73 in 2026, uses the Uniform Lifetime Table, and has these December 31, 2025 balances. The age-73 denominator is 26.5.

The arithmetic is transparent. IRA A is $530,000 ÷ 26.5 = $20,000. The three IRA results total $28,000, which Jordan may generally withdraw from one IRA or spread across those IRAs. The 401(k)’s $10,000 must come from that plan. The two 403(b) amounts total $8,000, which may generally be taken from one or both 403(b) contracts. A single $46,000 withdrawal from IRA A would move enough cash overall but would not satisfy the separate $10,000 401(k) requirement or the $8,000 403(b) requirement.

Do not round intermediate account results aggressively. Record each custodian’s exact figure and method, then decide whether to request a modest operational cushion. An excess distribution for 2026 cannot be carried forward to satisfy 2027, according to the IRS comparison chart. More money may be distributed, but it is not advance credit.

Withholding is a tax-payment choice, not an RMD discount

A one-time cash RMD is commonly treated as a nonperiodic payment. The 2026 Form W-4R says the default federal withholding rate for a nonperiodic payment is 10%, while the recipient may generally elect a whole-number rate from 0% through 100%. The form also says RMDs are not eligible rollover distributions. That matters because the familiar mandatory 20% withholding rule for eligible rollover distributions does not automatically turn an RMD into a 20%-withholding transaction.

The 2026 Publication 505 provides the broader withholding and estimated-tax framework. It warns, in effect, that a default percentage may not match the household’s actual liability. Withholding should be coordinated with wages, pensions, Social Security, capital gains, deductions, credits, estimated payments, and state rules. A custodian’s accepted election is not a professional conclusion that the percentage is sufficient.

Worked withholding example. Jordan instructs IRA A to distribute the entire $28,000 IRA-group RMD and elects 18% federal withholding on the nonperiodic payment.

• Gross distribution: $28,000
• Federal withholding: $28,000 × 18% = $5,040
• Net cash deposited: $28,000 − $5,040 = $22,960

The gross distribution is still $28,000; the $5,040 sent to the Treasury is not left in the IRA. But this example does not establish Jordan’s tax. If the distribution includes nondeductible IRA basis, the taxable amount requires a separate calculation. If state withholding applies, it needs a separate election and record. If the household is near an estimated-tax safe harbor, reconcile the choice with the site’s tax-withholding safe-harbor plan rather than choosing a round percentage from habit.

Complete this evidence worksheet before submitting orders

Use one row per account, even when the eventual withdrawal will be aggregated.

Attach the December 31 statement, custodian RMD notice, distribution request, withholding election, confirmation, and year-end Form 1099-R. The IRS Form 5329 page identifies the form used for additional taxes involving retirement accounts, including a missed minimum distribution. Its current Form 5329 instructions explain filing and reasonable-cause waiver procedures. Those are correction tools, not reasons to accept an avoidable deadline miss.

Reconcile gross distributions, not only bank deposits. A $22,960 bank credit in the example above does not, by itself, prove the full $28,000 gross distribution. Match the custodian confirmation and tax form to the withholding record. If a custodian rejects or cancels an order, the original submission date is not proof that a distribution occurred.

Use a calendar with operational margins

A legal deadline is not a processing target. Mutual fund sales, certificates of deposit, annuity paperwork, mailed checks, address holds, medallion requirements, beneficiary disputes, and fraud reviews can delay cash movement. For an intended 2026 distribution, set an internal completion date weeks before December 31. If intentionally using the first-year delay, set a first-quarter 2027 internal date well before April 1 and schedule the second 2027 RMD separately.

1. September: inventory accounts and obtain written calculations.
2. October: resolve account type, beneficiary, table, and aggregation questions.
3. November: choose source assets, withholding, delivery method, and state treatment.
4. Early December: submit ordinary year-end orders and verify settlement.
5. January through March 2027: only for a deliberate delayed first RMD, finish before the April 1 legal date and preserve proof.
6. December 31, 2027: remember that the regular 2027 RMD still has its own deadline.

A rollover should not be used as a casual repair technique. RMD amounts are not eligible for rollover, and a distribution sequence can matter when an RMD remains unsatisfied. Before moving an account during the first RMD year, use the direct-rollover withholding checklist and obtain instructions from both administrators.

Stop conditions: get account-specific help

Pause before ordering a distribution when any of these facts is present:

• a spouse is the sole beneficiary and more than ten years younger;
• an account was inherited, retitled, split in divorce, or owned by a decedent during 2026;
• the year-end balance omits an in-transit rollover or requires an annuity adjustment;
• a 403(b) contains separately tracked pre-1987 amounts;
• the person is still employed, owns part of the employer, or the plan imposes an earlier start;
• the IRA has nondeductible basis, a qualified charitable distribution is planned, or a conversion is also scheduled;
• the custodian’s result differs from the independent worksheet;
• an RMD appears late or short.

For a possible shortfall, contact the custodian and a CPA or enrolled agent promptly. The IRS FAQ states that the excise tax can be 25% of the amount not distributed and may be 10% when corrected within two years; it also describes the possibility of a reasonable-cause waiver through Form 5329. Eligibility, correction timing, and the explanation are fact-specific. Do not invent a waiver narrative or assume that requesting one guarantees relief.

RMD income can interact with Social Security taxation and later Medicare premiums. The separate Social Security claiming and tax worksheet can help map those household cash flows, but it does not replace a tax projection.

Final sign-off checklist

Before marking the 2026 requirement complete, confirm all of the following:

• The owner and birth date are correct.
• The account is owner-held rather than inherited.
• The December 31, 2025 balance is documented.
• The correct life-expectancy table and denominator were used.
• Every account was calculated separately.
• Only permitted IRA or 403(b) groups were aggregated.
• Each 401(k), 457(b), and other separate plan requirement was paid from that plan.
• The gross distribution, withholding, and net deposit reconcile.
• The distribution settled by the applicable date.
• Confirmation records are saved outside the custodian inbox.
• A delayed 2026 first RMD and the 2027 RMD appear as separate calendar tasks.

The safest first-year RMD process is auditable from start to finish: account inventory → prior-year balance → table factor → per-account calculation → permitted aggregation → gross distribution order → withholding election → settlement evidence → tax-form reconciliation. That sequence prevents a large cash withdrawal from hiding a small but expensive account-level error.

FAQ

When is a first 2026 RMD due?

For an IRA owner whose first distribution year is 2026, the first RMD may generally be taken by April 1, 2027. If it is delayed, the regular 2027 RMD is still due by December 31, 2027.

Can all RMDs be taken from one IRA?

The separately calculated RMDs for an owner’s traditional, SEP, and SIMPLE IRAs may generally be aggregated and withdrawn from one or more of those IRAs. That does not satisfy separate 401(k) or 457(b) obligations. Multiple 403(b) contracts have their own aggregation group.

Does withholding reduce the RMD credited?

Federal withholding from a cash distribution is part of the gross amount distributed even though only the net reaches the bank. Keep the custodian’s gross confirmation because the bank deposit alone does not show the complete transaction.