A retirement required minimum distribution calculator tells you how much you must withdraw from tax-deferred retirement accounts each year. A required minimum distribution (RMD) is the minimum amount federal rules require you to take out once you reach a set age. Enter your age and your prior December 31 balance. The tool applies the IRS life-expectancy factor and returns your dollar amount, deadline, and tax year.
Table of Contents
- How does the math work?
- When must you take it?
- Which accounts are included?
- What if you miss or delay?
- How should you use the result?
How does the math work?
Divide your prior December 31 account balance by your IRS Uniform Lifetime Table factor. At age 73 the factor is 26.5, so a $265,000 balance produces a $10,000 RMD, according to the IRS Publication 590-B guide explained by JNBA's distribution guide.
The factor shrinks as you age, so the percentage rises. Withdrawals run about 3.8% at 73, 5% at 80, and 8% at 90, and are taxed as ordinary income, as shown by AMAC's RMD calculator description. For an estimate you need three inputs:.
- prior December 31 balance for each account
- birth year and current age
- account type, such as traditional IRA or 401(k)
When must you take it?
Adults born 1951-1959 start RMDs at age 73, while those born 1960 or later start at 75 beginning in 2033 under SECURE 2.0, according to the IRS RMD FAQs. Your first RMD is due by April 1 after you reach RMD age.
All later RMDs are due December 31 each year. Taking the first RMD in the April 1 extension year creates two taxable distributions in one year. Many calculators flag that choice because the extra income can raise your tax bracket.
Which accounts are included?
RMDs apply to traditional, SEP and SIMPLE IRAs and workplace 401(k), 403(b), and 457(b) plans. Roth IRAs have no lifetime RMD. If you own several traditional IRAs, add the separate RMDs and withdraw the total from any IRA combination.
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Each 401(k) plan requires its own separate withdrawal. Workers still employed may delay workplace-plan RMDs until retirement. IRA owners and 5%-or-greater business owners cannot delay and must withdraw at RMD age.
What if you miss or delay?
Missing an RMD triggers a 25% excise tax on the shortfall. The rate drops to 10% if you correct within two years and report on Form 5329, with possible waiver for reasonable error.
To stay compliant, set calendar reminders for December 1 and December 20. Confirm the transfer cleared before December 31, keep the Form 5498 balance record, and file Form 5329 promptly if you correct a miss.
How should you use the result?
Use the calculator output to plan withholding, quarterly payments, and year-end cash needs. Compare taking the first RMD in its actual calendar year against delaying to April 1.
A single-year delay rarely helps because two distributions land in one tax return. Take the first RMD in year one unless a specific income drop next year offsets the bunching.
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