What Is an RMD and Why Does It Exist?

A Required Minimum Distribution (RMD) is the minimum amount the IRS requires you to withdraw annually from most retirement accounts starting at a specified age per IRS Pub. 590-B. You don't have a choice — if you don't withdraw it, penalties apply.

Why does the IRS require this? Because these accounts (401k, traditional IRA, etc.) received tax deductions when you contributed. The government deferred taxes with the expectation you'd eventually pay them. RMDs force that to happen and generate tax revenue.

Critical Rule: You must withdraw your RMD by December 31 each year. Missing the deadline creates a harsh penalty. There are no exceptions (except death and some hardship situations).

RMD Starting Age: 73 (SECURE 2.0, 2026)

The Timeline Per SECURE 2.0 Changes

If you turned 70½ before 2020, you may still need to take RMDs from certain accounts. Check with your plan administrator about grandfathered rules.

The First RMD

You have a grace period for your first RMD. You can take it by December 31 of the year you turn 73, OR by April 1 of the following year (the "required beginning date").

Strategy note: Taking your first RMD by December 31 is usually better. If you delay to April 1, you'll have two RMDs in that second calendar year, doubling your taxable income.

Which Accounts Have RMDs?

Accounts Subject to RMDs

  • Traditional (non-Roth) IRA
  • SEP IRA
  • SIMPLE IRA
  • 401(k)
  • 403(b)
  • 457(b) (governmental)
  • Traditional (non-Roth) 401(k) and 403(b)

Accounts NOT Subject to RMDs (Major Exception)

  • Roth IRA — NO RMDs during your lifetime (this is a HUGE advantage)
  • Roth 401(k) — NO RMDs during your lifetime (new in SECURE 2.0)
  • HSAs (Health Savings Accounts) — no RMDs at any age (triple tax advantage)
  • Roth conversions you've already made — no additional RMD
Roth Advantage: This is why Roth conversions are so valuable. Converting traditional IRA to Roth before 73 eliminates future RMDs on that money, giving you control over when to withdraw it.

Aggregate vs. Separate Accounts

If you have multiple IRAs (traditional, SEP, SIMPLE), you calculate the RMD for each, then add them together. You can take the total from any one account. Each 401(k) is separate — you must take RMD from each.

Example: You have a $300,000 traditional IRA and a $200,000 SEP IRA. Combined RMD is calculated on $500,000. You can withdraw the entire amount from the traditional IRA, leaving the SEP IRA untouched.

How to Calculate Your RMD

The Formula

IRA/401(k) Balance (Dec 31, Prior Year) ÷ Life Expectancy Factor = RMD

Step 1: Get Your Account Balance

Use the value of your account on December 31 of the prior year. Most custodians will provide this on your year-end statement. If you have multiple accounts, add them together (for IRAs only).

Step 2: Find Your Life Expectancy Factor

The IRS publishes the "Uniform Lifetime Table" that shows your life expectancy factor based on your age. You're considered one year older on your birthday, so use your age as of December 31 of the current year.

Age Uniform Lifetime Factor
Pub. 590-B
Age Uniform Lifetime Factor
73 26.5 82 17.2
75 22.9 85 14.8
78 20.1 90 12.0

Step 3: Divide to Get Your RMD

Worked Example: You're 75 in 2026. Your traditional IRA balance on Dec 31, 2025 was $500,000. Life expectancy factor = 22.9. RMD = $500,000 ÷ 22.9 = $21,834 for 2026.

Your custodian can calculate this for you — most now provide it automatically. But verify the calculation yourself using the table above.

Penalties for Missing RMDs (and How SECURE 2.0 Reduced Them)

The Penalty — Now Lower Than Before

If you don't withdraw your full RMD by December 31, the penalty is:

25% of the RMD amount not withdrawn

Example: Your RMD is $30,000, but you only withdraw $20,000. You missed $10,000. Penalty = 25% × $10,000 = $2,500.

Before SECURE 2.0: The penalty was 50%. SECURE 2.0 (2023) cut it in half to 25%, effective for 2023 and beyond. This is better, but still harsh.

Good News: Penalty Reduction

If you miss an RMD but correct it within two years, the penalty can be reduced to 10% instead of 25%. You must file Form 5329 with your tax return to claim the reduction.

Even Better: First-Time Waiver

If this is your first missed RMD and you have reasonable cause, you may be able to request a waiver of the penalty entirely. Contact the IRS directly.

Bottom line: Missing an RMD is expensive, but not catastrophic if you correct it promptly. Prevention is far better.

Strategies to Minimize RMD Tax Impact

Strategy 1: Roth Conversions Before 73

The 10-12 year window between retirement and RMD age is golden. You're in a lower tax bracket (no working income), so converting $50,000-$100,000/year from traditional IRA to Roth is relatively cheap.

Benefits: You reduce the balance generating future RMDs, and that converted money grows tax-free forever. Roth RMDs don't exist.

Example: Sarah retires at 62 with $800,000 in traditional IRA. She converts $75,000/year for 8 years (total: $600,000). At 73, her traditional IRA is $200,000 (instead of $800,000), so her RMD is much smaller. She also has a $600,000 Roth that will never generate an RMD.

Strategy 2: Qualified Charitable Distributions (QCD)

If you're charitably inclined, direct a distribution from your IRA to a qualified charity starting at age 70½ per IRS Pub. 590-B guidance on QCDs. The distribution:

  • Counts toward your RMD
  • Doesn't increase your taxable income (if done properly)
  • Maximum: $108,000/year per person for 2026 (inflation-indexed; $100,000 in prior years)

This is especially valuable if you don't itemize deductions, because you get the RMD satisfied without triggering taxable income.

Strategy 3: Aggregate IRA Strategy

If you have multiple IRAs (traditional, SEP, SIMPLE), you aggregate the RMD calculation but can take the distribution from just one account. This gives flexibility.

Example: You have a $300,000 traditional IRA earning little, and a $200,000 SEP IRA with employer contributions. Combined RMD = $23,000. You can take the full $23,000 from the traditional IRA and leave the SEP IRA growing.

Strategy 4: 401(k) Exception (Still Employed)

If you're still employed with the company sponsoring your 401(k) at age 73, you may be able to delay RMDs from that specific plan until you retire. This is called the "still-employed exception."

Note: This does NOT apply to IRAs, only to your current employer's 401(k). If you own more than 5% of the business, the exception doesn't apply.

Inherited IRA RMD Rules (SECURE 2.0)

If you inherit an IRA, RMD rules depend on your relationship to the original owner:

Spouse (Most Favorable)

You can roll the inherited IRA into your own IRA or treat it as your own. RMDs follow your age, not the original owner's.

Non-Spouse Beneficiary (10-Year Rule)

Under SECURE 2.0, if you're a non-spouse beneficiary (child, sibling, friend), you have 10 years to withdraw the entire inherited IRA. You must withdraw it all by December 31 of the 10th year following the original owner's death.

For 2026, the RMD rules are complex, and most non-spouse beneficiaries should consult a tax professional.

Designated Beneficiary (Surviving Spouse, Minor Child, Disabled, Chronically Ill)

If you fit these categories, more favorable rules apply, allowing RMDs over your own life expectancy.

RMD Checklist

  • [ ] Verify your age and RMD starting year (73 in 2026)
  • [ ] List all accounts subject to RMD (traditional IRA, 401k, SEP, etc.)
  • [ ] Get December 31 balances from each account custodian
  • [ ] Calculate RMD using IRS Uniform Lifetime Table (or let custodian calculate)
  • [ ] Aggregate IRA RMDs, calculate 401k RMDs separately
  • [ ] Decide: Take RMD from one account or spread across multiple
  • [ ] Consider Roth conversion opportunity if under 73
  • [ ] Consider QCD (charitable distribution) if charitably inclined
  • [ ] Execute RMD withdrawal by December 31
  • [ ] Verify it's reported on Form 1099-R
  • [ ] Include in taxable income when filing taxes

RMD Planning Made Simple

RMDs are complex, but the strategies to minimize them are powerful. Sema Legacy helps you model Roth conversions, track multiple accounts, and ensure you never miss a deadline.

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