RMD Calculator

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RMD Calculator: Calculate Your Required Minimum Distribution

Whether you are looking for a rmd estimator, calculate rmd, how to calculate rmd, rmd formula, rmd returns, or rmd growth — this free rmd calculator provides accurate estimates to help you plan and make informed financial decisions.

A Required Minimum Distribution (RMD) calculator determines the minimum amount you must withdraw from tax-deferred retirement accounts each year starting at age 73. Failing to take your full RMD triggers one of the harshest penalties in the tax code — a 25% excise tax on the amount not withdrawn (reduced to 10% if corrected within 2 years).

Enter your age, account balance as of December 31 of the prior year, and account type above. The calculator shows your RMD amount, the IRS life expectancy factor used, and the tax impact at your marginal bracket.

How RMDs Are Calculated

The formula: RMD = Account Balance (Dec 31 prior year) ÷ IRS Life Expectancy Factor

The IRS provides the Uniform Lifetime Table (used by most account holders) in Publication 590-B:

Example: You are 75 with a $500,000 Traditional IRA balance on December 31, 2025. Your 2026 RMD = $500,000 ÷ 24.6 = $20,325. This is the minimum — you can always withdraw more. The entire withdrawal is taxed as ordinary income.

As you age, the factor decreases and the RMD percentage increases — forcing larger taxable withdrawals each year. By age 90, you must withdraw 8.2% annually, and by 95, over 11%. This escalation can push retirees into higher tax brackets, trigger Medicare IRMAA surcharges, and increase Social Security taxation.

Key RMD Rules Under SECURE 2.0

RMD start age: 73 (born 1951–1959). Rising to 75 starting in 2033 (born 1960+). The original SECURE Act raised it from 70½ to 72; SECURE 2.0 raised it again. Your first RMD must be taken by April 1 of the year after you turn 73 — but delaying the first RMD means taking two in the same calendar year (the delayed first + the regular second), which can spike your tax bracket.

Accounts subject to RMDs: Traditional IRA, SEP-IRA, SIMPLE IRA, 401(k), 403(b), 457(b), and other tax-deferred employer plans. Roth IRAs are NOT subject to RMDs during the owner's lifetime — the single biggest advantage of Roth accounts in retirement. Roth 401(k)s were previously subject to RMDs but are exempt starting in 2024 (SECURE 2.0).

Penalty for missing an RMD: 25% excise tax on the shortfall (SECURE 2.0 reduced this from 50%). If corrected within 2 years: reduced to 10%. On a $20,000 missed RMD: $5,000 penalty (25%) or $2,000 if corrected quickly (10%). Set calendar reminders and consider automating RMD withdrawals to avoid this entirely.

Aggregation rules: If you have multiple Traditional IRAs, you calculate the RMD for each but can withdraw the total from any one IRA. You cannot aggregate 401(k) RMDs — each 401(k) must take its own RMD. This distinction matters for consolidation planning: rolling old 401(k)s into a single IRA simplifies RMD administration.

Strategies to Minimize RMD Tax Impact

Roth conversions before age 73: Convert Traditional IRA funds to Roth during low-income years (early retirement, between jobs). Every dollar converted reduces the Traditional balance, lowering future RMDs. Convert $50,000/year from ages 60-72 = $650,000 moved to Roth. At age 73, your Traditional balance is $650,000 lower — your RMD is approximately $24,500 lower, saving $5,400-$7,800/year in taxes at the 22-32% bracket. See our Roth Conversion Calculator.

Qualified Charitable Distributions (QCDs): At age 70½+, transfer up to $111,000/year in 2026 (indexed for inflation) directly from your IRA to charity. The QCD satisfies your RMD, is excluded from taxable income, and reduces AGI (lowering IRMAA, SS taxation, and ACA premium thresholds). Under the One Big Beautiful Bill Act (2026), itemized charitable deductions face a new 0.5% AGI floor and a 35% tax-benefit cap for top earners — making QCDs even more valuable than cash donations for many retirees. A $20,000 RMD taken as a QCD at the 22% bracket saves $4,400 in taxes compared to taking the RMD as income and donating separately. See our Charitable Donation Calculator.

Still working at 73+: If you are still employed and do not own 5%+ of the company, you can delay RMDs from your current employer's 401(k) (not IRA) until you actually retire. This "still working" exception does not apply to IRAs or former employer plans — only the current employer's 401(k).

The Hidden Costs of RMDs: How They Interact With IRMAA, Social Security, and Tax Brackets

The RMD itself is rarely the problem. The problem is what the RMD does to everything else on your tax return. A $40,000 RMD might cost you $4,800 in federal income tax at the 12% bracket — but that same $40,000 could trigger an additional $2,300 in Medicare IRMAA surcharges, push 85% of your Social Security into taxable territory, and bump you into a higher marginal bracket. The interactions matter more than the headline number. This section walks through each one in detail with 2026 numbers.

How RMDs Trigger Medicare IRMAA Surcharges in 2026

The Income-Related Monthly Adjustment Amount (IRMAA) is a Medicare premium surcharge that hits about 8% of Medicare beneficiaries — roughly 5.1 million people in 2025, growing to an estimated 5.4 million in 2026. It applies to both Part B (medical insurance) and Part D (prescription drug coverage). The surcharge is calculated on your Modified Adjusted Gross Income (MAGI) from two years prior: your 2026 IRMAA is based on your 2024 tax return.

The 2026 IRMAA structure has 5 tiers, with thresholds finalized by CMS in November 2025:

The first four IRMAA tiers are inflation-adjusted annually. The fifth (top) tier is currently frozen at $500,000 single / $750,000 MFJ until 2028. Standard 2026 Part B premium is $202.90/month per person — so a Tier 4 enrollee pays a total of $649.50/month, vs the standard $202.90.

What makes IRMAA brutal is the cliff structure. Unlike federal income tax brackets, where only the income above each threshold gets taxed at the higher rate, IRMAA is a step function: $1 over a threshold triggers the FULL surcharge for that tier. A married couple with $217,999 MAGI pays $0 IRMAA. The same couple with $218,001 MAGI pays $2,297/year. That's a 230,000-to-1 marginal rate on the last $2.

Why this matters for RMD planning: RMDs feed directly into MAGI (which is roughly Adjusted Gross Income plus tax-exempt interest). At age 73 with a $1.5M Traditional IRA, your RMD is $56,604. Combined with $48,000 Social Security and a $40,000 pension, your MAGI is approximately $144,600 (assuming 85% of SS is taxable). For a single filer, that's well into IRMAA Tier 1 — costing an extra $1,148/year. As you age and the RMD percentage increases (factor 16.0 at age 85 means 6.25% withdrawal vs 3.77% at 73), the IRMAA surcharge can grow with each year. By age 90, the same retiree would have an RMD of roughly $80,000 from a balance that's barely changed — and might be in IRMAA Tier 2 or 3.

The 2-year lookback creates both a planning challenge and an opportunity. A Roth conversion in 2026 affects your IRMAA in 2028 — giving you time to plan. The most underutilized planning tool is the SSA-44 Life-Changing Event Appeal: if your income drops significantly due to retirement, work reduction, divorce, or death of a spouse, you can ask the SSA to use a more recent year's income instead of the standard 2-year lookback. This appeal is approved at high rates for legitimate life-changing events but most retirees never file because they don't realize it exists.

The Social Security Tax Torpedo: Why Each $1 of RMD Can Cost $1.85

The Social Security taxability rules are arguably the most poorly-designed part of the US tax code, and they hit RMD-takers the hardest. Up to 85% of your Social Security benefits become federally taxable when your "provisional income" exceeds certain thresholds. The thresholds:

• Single filers: $25,000-$34,000 → up to 50% of SS taxable; over $34,000 → up to 85% taxable
• Married filing jointly: $32,000-$44,000 → up to 50% taxable; over $44,000 → up to 85% taxable

These thresholds have not been adjusted for inflation since 1984. In 1984, $25,000 was a six-figure-equivalent income. In 2026, $25,000 is below the federal poverty line for a household of four. The result: virtually every retiree with any combination of RMDs, pension, or part-time work hits the 85% taxable ceiling. The thresholds are no longer thresholds in any meaningful sense; they're trip wires.

"Provisional income" is defined as: Adjusted Gross Income (excluding Social Security) + tax-exempt interest + 50% of Social Security benefits. So if you take a $40,000 RMD plus a $20,000 pension and receive $30,000 in Social Security: provisional income = $40,000 + $20,000 + $0 (no muni bonds) + $15,000 (half of SS) = $75,000. That's well above the $44,000 MFJ threshold, so 85% of your $30,000 Social Security ($25,500) is federally taxable.

The "tax torpedo" effect: Once you cross into the 85% taxable zone, every additional dollar of RMD income causes additional Social Security income to become taxable. Specifically: each extra $1 of RMD adds $1 to provisional income, which adds $0.85 of Social Security to the taxable amount. So that extra $1 of RMD effectively creates $1.85 of additional taxable income. At a 22% marginal federal bracket, that's 22% × $1.85 = $0.407 in additional federal tax on a $1 RMD increase — an effective marginal rate of 40.7%, even though your stated bracket is 22%.

This is why aggressive Roth conversions in the gap years between retirement and age 73 are so valuable. Every dollar moved from Traditional to Roth permanently exits both the RMD calculation AND the SS provisional income calculation. The tax cost during conversion years is real, but the future avoided tax torpedo is permanent and compounds over a 25-30 year retirement.

2026 Federal Tax Brackets and the OBBBA Senior Bonus Deduction

The One Big Beautiful Bill Act (OBBBA), passed in July 2025, made permanent most of the Tax Cuts and Jobs Act individual tax provisions that were scheduled to expire at the end of 2025. The seven federal tax brackets remain at 10%, 12%, 22%, 24%, 32%, 35%, and 37%. For 2026, the IRS adjusted the bracket thresholds for inflation (Revenue Procedure 2025-32):

The 2026 standard deduction is $16,100 for single filers, $32,200 for MFJ, and $24,150 for Head of Household. Taxpayers age 65 or older receive an additional standard deduction of $2,050 (single) or $1,650 per qualifying spouse (MFJ).

OBBBA introduced a temporary $6,000 senior bonus deduction for tax years 2025-2028. Single filers over 65 can deduct an additional $6,000 from taxable income, and MFJ couples both 65+ can deduct $12,000. The bonus phases out at 6% per dollar above $75,000 MAGI (single) or $150,000 MAGI (MFJ). For a single retiree at $80,000 MAGI, the bonus is reduced from $6,000 to $5,700 ($6,000 - 0.06 × $5,000). At $175,000 MAGI single, the bonus is fully phased out ($6,000 - 0.06 × $100,000 = $0).

For most middle-income retirees, the senior bonus deduction is a meaningful tax cut: a couple with $130,000 MAGI receives the full $12,000 bonus, saving $2,640 in federal tax at the 22% bracket. This is one of the few OBBBA provisions specifically designed to benefit retirees, though it sunsets in 2028 unless extended by future legislation.

Multi-Account RMD Aggregation: The Most Misunderstood Rule

The single most commonly misunderstood RMD rule concerns aggregation across accounts. The rule depends on account type:

Traditional IRAs aggregate. If you have a Traditional IRA at Fidelity, a Rollover IRA at Schwab, and a SEP IRA at Vanguard, you calculate the RMD for each one separately, add them up, and can take the entire combined RMD from any single account or any combination. The IRS treats your IRA universe as one pool for RMD purposes. This is also true for SIMPLE IRAs and inherited IRAs (within the same beneficiary class).

Employer plans do NOT aggregate. 401(k), 403(b), and 457(b) plans each calculate and distribute their own RMD separately. If you have an old 401(k) from one employer and a current 401(k) from another, each plan must take its own RMD from its own balance. You cannot satisfy a 401(k) RMD by withdrawing more from your IRA, and you cannot satisfy an IRA RMD from a 401(k). The plans are siloed.

Practical implication for consolidation. If you have multiple old 401(k)s sitting at former employers, rolling them all into a single IRA before reaching age 73 dramatically simplifies RMD administration. Instead of dealing with 4 separate plan administrators each year (each with their own paperwork, deadlines, and failure modes), you have one custodian managing one IRA RMD that aggregates with any other IRAs you hold. The 25% excise tax on missed RMDs (reduced from 50% by SECURE 2.0) is the most avoidable tax penalty in the code, and consolidation makes it easier to avoid by reducing the number of moving parts.

Roth accounts are exempt entirely. Roth IRAs have no lifetime RMDs for the original owner — never have, never will (under current law). Roth 401(k)s were previously subject to RMDs but are now exempt starting in 2024 under SECURE 2.0. Inherited Roth IRAs do have distribution requirements for non-spouse beneficiaries under the SECURE Act 10-year rule, but distributions remain tax-free.

Roth Conversion Strategy: The Single Highest-Leverage RMD Decision

Among all the strategies for managing RMDs, aggressive Roth conversions in the gap years between retirement and age 73 produce the highest-leverage outcomes for most retirees. The math is straightforward but the timing requires planning.

How conversions reduce future RMDs. Every dollar moved from Traditional to Roth during your working or early-retirement years permanently exits the RMD calculation. The tax cost during conversion is real (you pay ordinary income tax on the converted amount in the year of conversion), but the future avoided tax — RMD tax + IRMAA + SS tax torpedo — typically dwarfs the upfront cost over a 25-30 year retirement horizon.

Worked example. A 65-year-old couple with $1.5M in Traditional IRA assets and a current 12% marginal bracket converts $50,000/year for 8 years (ages 65-72). Total converted: $400,000. Tax cost: approximately $48,000 over 8 years (12% × $400,000), assuming the conversions don't push them into a higher bracket. At age 73, their Traditional IRA is roughly $1,470,000 (the original $1.5M minus $400,000 converted, plus 5% growth on the remainder). The Roth has grown to roughly $580,000 (the converted $400,000 grown at 5% over the conversion years).

Without conversions, their first-year RMD at 73 would be $1,500,000 × (1.05)^8 ÷ 26.5 = $83,500. With conversions, their first-year RMD is $1,470,000 × (1.05)^8 / [adjust for already-drawn-down balance] ÷ 26.5 ≈ $58,000. The RMD reduction is about $25,000/year initially, growing as they age. At a 22% retirement marginal rate (likely with $80K+ in non-RMD income), that's $5,500/year in immediate tax savings, plus avoided IRMAA cliffs and SS torpedo effects. Over 25 years, cumulative tax savings often exceed $150,000 in present-value terms — a 3-to-1 return on the $48,000 conversion cost.

Optimal timing. The most aggressive Roth converters target ages 60-72 — after major working income has stopped but before RMDs and Medicare premiums start. Within that window, ages 60-64 are particularly valuable because they pre-date Medicare enrollment, so conversions don't trigger IRMAA exposure (which has a 2-year lookback meaning conversions in those years would otherwise affect IRMAA at ages 62-66, before Medicare matters). Once on Medicare at 65, sized conversions stay just under the IRMAA Tier 1 threshold each year.

The SSA-44 lever. When you retire mid-year, your final-year salary is on your tax return for that year, but it doesn't reflect your retirement-era income. You can file Form SSA-44 (Life-Changing Event) with documentation of your retirement to ask the SSA to use a more recent year's income for IRMAA calculation. This is one of the most underutilized planning tools — approval rates for legitimate retirement-driven income drops are high, but most retirees never file because they don't know it exists.

Qualified Charitable Distributions Under OBBBA: Why QCDs Got More Valuable in 2026

Qualified Charitable Distributions allow IRA owners age 70½ or older to transfer up to $111,000 per person in 2026 ($222,000 for MFJ couples both 70½+) directly from a Traditional IRA to a qualified 501(c)(3) public charity. The QCD counts toward the year's RMD but is excluded from taxable income — it never appears as income at all, which means it doesn't affect AGI, MAGI, IRMAA tier, or SS taxability.

QCDs have always been valuable for charitably-inclined retirees. Under OBBBA's 2026 charitable deduction changes, they became dramatically more valuable. Two new restrictions on itemized charitable deductions take effect:

• 0.5% AGI floor. For taxpayers who itemize, charitable deductions are now reduced by 0.5% of AGI before any deduction is allowed. A household with $200,000 AGI loses the first $1,000 of charitable deductions. A $20,000 cash donation produces $19,000 in deductible donations instead of the full $20,000.
• 35% tax-benefit cap. For high-income taxpayers in the 37% bracket, the maximum tax benefit from any itemized deduction (including charitable) is capped at 35% of the deduction amount. So a $100,000 charitable deduction in the 37% bracket produces $35,000 in tax savings, not $37,000.

QCDs bypass both restrictions entirely because they're not deductions — they're exclusions from income. The mechanism is structurally different. A $20,000 QCD reduces your taxable income by exactly $20,000, before any AGI floors or benefit caps apply. There is no 0.5% floor on QCDs and no 35% cap.

Worked comparison. A retiree at the 22% bracket with $200K AGI and $20K in annual charitable giving has two paths. Path A: take the $20K from RMD as income, donate cash, itemize. Tax effect: $20K is added to AGI ($4,400 additional federal tax at 22%); the donation produces $19K in deductible amount after the 0.5% floor; deduction reduces tax by $4,180. Net tax cost of giving: $220 (small but nonzero). Path B: do a $20K QCD directly from IRA. The $20K is excluded from AGI entirely. No additional federal tax. Net tax cost of giving: $0, plus likely additional savings from lower MAGI (less SS taxable, possibly lower IRMAA tier). For most charitable retirees, the QCD path saves $1,000-$3,000/year in actual tax outcomes.

Eligibility nuances. QCDs require age 70½ — NOT 73, despite SECURE 2.0 raising the RMD age. Many retirees miss this two-and-a-half-year window between QCD eligibility and RMD start. QCDs from those years still reduce the IRA balance and thus reduce future RMDs, even though no current RMD obligation exists. QCDs must come from IRAs (Traditional, Rollover, or Inherited) — they cannot come from 401(k), 403(b), or 457(b) plans. If your retirement assets are in employer plans, roll to an IRA first to access QCD treatment. The transfer must be direct from custodian to charity; if the funds touch your bank account first, the QCD treatment is destroyed even if you forward the money to charity within minutes. QCDs cannot go to Donor-Advised Funds, private foundations, or supporting organizations — only direct 501(c)(3) public charities.

The Widow's Tax Trap: Why Surviving Spouses Pay More on the Same Income

Possibly the most underappreciated long-term planning issue in retirement taxation is the widow's tax trap. When one spouse dies, the survivor's tax situation changes in three simultaneous ways that compound:

Filing status changes from MFJ to Single (after the year of death). Single filers face brackets that are roughly half as wide as MFJ brackets at every level. The 22% bracket starts at $50,400 for single filers vs $100,800 for MFJ. The 24% bracket starts at $105,700 vs $211,400. Same income, higher rates.

IRMAA thresholds are 50% lower for single filers. $109,000 (single) vs $218,000 (MFJ) for the Tier 1 cliff. So a survivor with the same MAGI as before crosses IRMAA tiers at half the income level.

Social Security drops by the smaller of the two benefits. When a spouse dies, the survivor keeps the higher of the two Social Security benefits but loses the smaller one entirely. For couples where both had earned benefits, this is typically a $15,000-$25,000/year reduction.

The compound effect: the survivor often has $15,000-$25,000 LESS income but pays $5,000-$10,000 MORE in federal tax due to compressed brackets and lost senior deduction allocations. Plus higher Medicare premiums from IRMAA cliff thresholds being halved. Over 10 years of widowhood — not unusual given female longevity advantages — this compounds to $50,000-$150,000 in additional taxes the survivor pays.

The mitigation strategies require action during the joint years, before death:

• Aggressive Roth conversions during the joint years. Every dollar moved to Roth permanently exits both the survivor's RMD calculation and the survivor's SS provisional income calculation. The mathematical case for Roth conversions is roughly 50% stronger when the conversion is being done with a future single-filer survivor in mind.
• Time large capital gains and Roth conversions to the joint years. Anything realized as a couple is taxed at lower rates than if delayed to survivor years. Don't defer capital gains realization indefinitely if the deferral pushes them into the survivor's tax life.
• QCDs in survivor years. Same charitable giving routed through QCD reduces survivor MAGI directly, which is more valuable when IRMAA thresholds are halved.
• Spousal IRA beneficiary planning. The surviving spouse can elect to treat the inherited IRA as their own, which delays RMDs for younger surviving spouses and provides more conversion runway. Non-spouse beneficiaries face the SECURE Act 10-year rule, which is generally less favorable.
• Life insurance during joint years to provide tax-free liquidity replacing the lost lower-bracket joint years. Permanent life insurance proceeds bypass income tax entirely and can fund the survivor's tax-advantaged spending.

2026 RMD Resources and Verified Sources

The figures, thresholds, and calculations on this page derive from the following authoritative sources, all updated for 2026:

• IRS Publication 590-B (2026) — Distributions from Individual Retirement Arrangements (IRAs). Contains the Uniform Lifetime Table used for most RMD calculations, the Joint Life and Last Survivor Expectancy Table for spouses more than 10 years younger, and the Single Life Expectancy Table for inherited IRAs.
• IRS Revenue Procedure 2025-32 — Sets the 2026 federal income tax brackets, standard deductions, and inflation adjustments. Released October 2025.
• CMS 2026 Medicare Parts A & B Premiums and Deductibles — Released November 14, 2025. Sets the standard Part B premium ($202.90/month) and the 5 IRMAA tier thresholds and surcharges.
• SECURE Act 2.0 (Public Law 117-328) — Raised the RMD age from 72 to 73 (effective 2023, for those born 1951-1959), and to 75 starting 2033 (for those born 1960+). Reduced the missed-RMD penalty from 50% to 25% (10% if corrected within 2 years). Eliminated lifetime RMDs for Roth 401(k)s starting 2024.
• One Big Beautiful Bill Act (OBBBA, July 2025) — Made permanent the TCJA individual rate structure. Added the temporary $6,000 senior bonus deduction (2025-2028, phased out 6% above $75K single / $150K MFJ). Introduced the 0.5% AGI floor and 35% benefit cap on itemized charitable deductions.
• Form SSA-44 (Life-Changing Event) — IRMAA appeal form for major income drops due to retirement, divorce, work reduction, or death of a spouse.

This calculator and its decision support layers reflect the rules as of January 2026. Tax law changes annually; we update calculations within 90 days of any IRS or CMS change to the underlying figures. The math is for informational purposes — it should inform conversations with your financial advisor and tax preparer, not replace them.

Frequently Asked Questions