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A required minimum distribution calculator answers a question that catches many retirees off guard: how much must I withdraw from my retirement accounts this year? Once you reach a certain age, the IRS mandates that you take annual distributions from tax-deferred accounts like traditional IRAs and 401(k)s. The exact amount depends on your account balance and a life expectancy factor published by the IRS. Get the calculation wrong, or miss the deadline, and you face a penalty that can reach 25% of the amount you should have withdrawn. This guide walks through the current rules, the formula, the key deadlines, and the strategies that can reduce your RMD burden.
A required minimum distribution (RMD) is the minimum amount you must withdraw from a tax-deferred retirement account each year once you reach the applicable age. The rule exists because these accounts — traditional IRAs, 401(k)s, 403(b)s, and most other employer-sponsored plans — allow you to defer taxes on contributions and growth. The IRS does not allow that deferral to continue indefinitely. At some point, the government wants its tax revenue.
RMDs are not optional. You must take the distribution whether you need the money or not. The amount is added to your ordinary income for the year and taxed at your marginal rate. Once the distribution is made, you can spend it, reinvest it in a taxable account, or convert it to a Roth IRA (though the conversion itself is a taxable event).
Not every retirement account is subject to RMDs. Roth IRAs are exempt during the account owner's lifetime. Roth 401(k)s were also subject to RMDs until SECURE 2.0 eliminated that requirement for tax years beginning after December 31, 2023. If you are still working and participating in your current employer's 401(k), you may be able to delay RMDs from that specific plan until you retire — provided you are not a 5% or greater owner of the business.[reference:0]
The SECURE 2.0 Act of 2022 reshaped the RMD landscape. The most significant change was raising the age at which RMDs must begin. The schedule now depends on your birth year:
| Birth Year | RMD Start Age | When RMDs Begin |
|---|---|---|
| 1950 or earlier | 72 (or 70½ under older rules) | Already started |
| 1951–1959 | 73 | 2024–2032 |
| 1960 or later | 75 | 2035 onwards |
If you were born in 1953, you turn 73 in 2026 and must begin RMDs by April 1, 2027. If you were born in 1960, your RMD age is 75, and your first distribution is due by April 1, 2036.[reference:1]
SECURE 2.0 also reduced the penalty for missing an RMD. The excise tax dropped from 50% to 25% of the shortfall, and it can be further reduced to 10% if you correct the mistake within two years and file the appropriate paperwork.[reference:2]
The RMD formula is straightforward:
The account balance is the fair market value of your retirement account as of December 31 of the previous year. For 2026 RMDs, you use the balance as of December 31, 2025. The life expectancy factor comes from an IRS table, and most account owners use the Uniform Lifetime Table (Table III) in Publication 590-B.
The Uniform Lifetime Table assigns a factor based on your age. The factor decreases as you get older, which means your required withdrawal percentage increases. Here are the factors for the early years of RMDs:
| Age | Life Expectancy Factor | RMD % of Balance |
|---|---|---|
| 73 | 26.5 | 3.77% |
| 74 | 25.5 | 3.92% |
| 75 | 24.6 | 4.07% |
| 76 | 23.7 | 4.22% |
| 77 | 22.9 | 4.37% |
| 78 | 22.0 | 4.55% |
| 79 | 21.1 | 4.74% |
| 80 | 20.2 | 4.95% |
Worked example. Suppose you turn 75 in 2026 and your traditional IRA balance on December 31, 2025 was $850,000. The Uniform Lifetime Table factor for age 75 is 24.6. Your RMD is $850,000 ÷ 24.6 = $34,553. You must withdraw at least that amount during 2026.[reference:3]
To run your own numbers, use the required minimum distribution calculator above. It applies the current IRS factors automatically.
The deadline for taking your RMD depends on whether it is your first distribution year.
Delaying your first RMD to April 1 creates a tax-planning trap. If you delay your 2026 RMD until April 1, 2027, you must also take your 2027 RMD by December 31, 2027. That means two taxable distributions in a single calendar year, which can push you into a higher tax bracket and increase your Medicare premiums.[reference:4]
Failing to take the full RMD by the deadline triggers an excise tax on the amount not withdrawn. Under SECURE 2.0, the penalty is 25% of the shortfall. If you correct the error within two years by taking the missed distribution and filing Form 5329 with a reasonable cause explanation, the penalty drops to 10%.[reference:6]
The IRS has the discretion to waive the penalty entirely if you can demonstrate that the shortfall was due to reasonable error and you are taking steps to remedy it. But the burden of proof falls on you. The safest approach is to set up automatic distributions through your custodian to ensure the deadline is never missed.
The rules for inherited IRAs depend on your relationship to the deceased account owner and the date of death.
Spouse beneficiaries. A surviving spouse who is the sole designated beneficiary can roll the inherited IRA into their own IRA. Once rolled over, the account is treated as their own, and RMDs are calculated using the Uniform Lifetime Table based on their age. If the spouse is more than 10 years younger, the Joint Life and Last Survivor Table may produce a smaller RMD.
Non-spouse beneficiaries. Under the SECURE Act of 2019, most non-spouse beneficiaries must empty the inherited IRA within 10 years. The SECURE 2.0 Act introduced annual RMD requirements during the 10-year period for beneficiaries who are not eligible designated beneficiaries. Final regulations on this requirement are still pending as of 2026, but the IRS has granted penalty relief for certain years.[reference:7]
Eligible designated beneficiaries. Certain beneficiaries are exempt from the 10-year rule and can stretch distributions over their life expectancy. This group includes surviving spouses, minor children of the account owner (until they reach the age of majority), disabled individuals, chronically ill individuals, and beneficiaries less than 10 years younger than the account owner.
To calculate an inherited IRA RMD, you use the Single Life Expectancy Table (Table I) in Publication 590-B. Each year, you subtract one from the initial life expectancy factor to determine the new factor.[reference:8]
RMDs are taxable income, and for retirees with substantial tax-deferred balances, they can push you into a higher bracket and increase the taxable portion of Social Security benefits. Several strategies can help manage the burden.
Roth conversions before RMD age. Converting traditional IRA funds to a Roth IRA before RMDs begin reduces the balance subject to future RMDs. The conversion itself is taxable in the year it occurs, but subsequent growth and withdrawals are tax-free, and Roth IRAs have no lifetime RMDs.
Qualified Charitable Distributions (QCDs). If you are 70½ or older, you can transfer up to $105,000 per year from your IRA directly to a qualified charity. The amount transferred counts toward your RMD and is excluded from your taxable income. This is particularly valuable for retirees who do not need the RMD for living expenses.[reference:9]
Timing withdrawals carefully. If you have flexibility, taking RMDs early in the year rather than waiting until December gives the funds more time to be reinvested in a taxable account. It also avoids the risk of administrative delays near the deadline.
Using a retirement calculator to project future RMDs can help you plan years in advance. If you expect a large RMD at age 80, converting smaller amounts to Roth in your early 70s may reduce the long-term tax bill.
Under SECURE 2.0, the RMD start age is 73 for individuals born between 1951 and 1959. For those born in 1960 or later, the start age increases to 75, beginning January 1, 2033. If you were born before July 1, 1949, the old age of 70½ still applies.
The RMD is calculated by dividing your retirement account balance as of December 31 of the prior year by a life expectancy factor from an IRS table. Most people use the Uniform Lifetime Table (Table III). For example, if you are 73 with a $500,000 balance, the factor is 26.5, giving an RMD of $18,868.
Missing an RMD triggers a 25% excise tax on the amount not withdrawn. If you correct the missed distribution within two years and file Form 5329 with a reasonable cause explanation, the penalty drops to 10%. The IRS may waive the penalty entirely in some cases.
Yes. Your first RMD can be delayed until April 1 of the year after you reach your RMD age. However, if you delay, you will have to take two RMDs in that same year — one for the previous year and one for the current year — which could push you into a higher tax bracket.
No. Roth IRAs are not subject to RMDs during the account owner's lifetime. However, Roth 401(k) accounts were subject to RMDs until SECURE 2.0 eliminated that requirement for tax years beginning after December 31, 2023.
For inherited IRAs, the rules depend on your relationship to the deceased and when they died. Spouses who are sole beneficiaries can roll the account into their own IRA and use the Uniform Lifetime Table. Non-spouse beneficiaries typically must empty the account within 10 years under the SECURE Act's 10-year rule.
The Uniform Lifetime Table (Table III) is an IRS table that provides life expectancy factors based on your age. It assumes a beneficiary 10 years younger than you, even if that is not the case. The factors decrease as you age, which means your RMD percentage increases over time.
Yes. A Qualified Charitable Distribution (QCD) allows you to transfer up to $105,000 per year from your IRA directly to a qualified charity. The amount transferred counts toward your RMD and is excluded from your taxable income.
In sum, a required minimum distribution calculator turns a complex IRS rule into a manageable annual task. The formula itself is simple — prior year-end balance divided by a life expectancy factor — but the surrounding rules demand attention. The SECURE 2.0 Act reset the starting age, penalties for missed distributions remain steep, and inherited IRAs follow a different path entirely. Whether you are approaching your first RMD year, managing an inherited account, or planning Roth conversions to shrink future RMDs, the key is to calculate accurately, meet the deadline, and treat the distribution as what it is: taxable income that arrives whether you need it or not. Use the RMD calculator above to run your numbers, and consult a tax professional for guidance specific to your situation.