RMD Calculator — IRA & 401(k) Withdrawals
Determine your Required Minimum Distribution from traditional IRAs and 401(k)s based on age, account balance, and IRS life expectancy tables
Formula
RMD = Account Balance / Life Expectancy Factor
IRS requires annual minimum withdrawals from tax-deferred accounts starting at age 73. Factors decrease each year, increasing RMD percentage.
Worked Examples
Example 1: Basic RMD Calculation
Problem:Age 75 with $500,000 Traditional IRA balance as of December 31. Calculate RMD.
Solution:Find the life expectancy factor for age 75: From IRS Uniform Lifetime Table: 24.6 RMD = Account Balance ÷ Life Expectancy Factor RMD = $500,000 ÷ 24.6 RMD = $20,325 This is the MINIMUM you must withdraw. As a percentage: 4.1% of balance Tax impact (assuming 22% bracket): Tax on RMD: $20,325 × 22% = $4,472
Result:$20,325 RMD (4.1% of balance)
Example 2: First Year RMD Timing
Problem:Turn 73 in 2024. When are first two RMDs due, and what's the tax impact?
Solution:First RMD deadline options: - By April 1, 2025 (extended deadline for first RMD) - OR by December 31, 2024 (normal deadline) If you wait until April 2025: - First RMD due by April 1, 2025 - Second RMD due by December 31, 2025 - Two RMDs in one tax year (2025)! Example with $400,000 balance: Each RMD: ~$15,000 Two in 2025: $30,000 extra income May push into higher bracket Better strategy: Take first RMD in 2024 to spread income across two tax years.
Result:Take first RMD in year you turn 73 to avoid bunching
Example 3: QCD Strategy
Problem:Age 75, $25,000 RMD, regularly donate $10,000 to charity. How does QCD help?
Solution:Without QCD: RMD: $25,000 (taxable income) Charitable donation: $10,000 (itemized deduction) If standard deduction is higher, donation gives no tax benefit With QCD: Direct $10,000 from IRA to charity (QCD) Remaining RMD: $15,000 (taxable income) Result: - $10,000 never appears as income - Still satisfies RMD requirement - Can still take standard deduction - Lower AGI may reduce: - Social Security taxation - Medicare premiums (IRMAA) - Capital gains bracket Tax savings example (22% bracket): $10,000 × 22% = $2,200 saved + potential IRMAA savings
Result:QCD saves $2,200+ vs regular donation
Frequently Asked Questions
What is an RMD (Required Minimum Distribution)?
RMD is the minimum amount you must withdraw annually from tax-deferred retirement accounts (Traditional IRA, 401k, 403b) starting at age 73. The IRS requires these withdrawals so they eventually collect taxes on pre-tax contributions and growth. Failure to take RMDs results in penalties.
What is the penalty for not taking RMD?
SECURE 2.0 reduced the penalty from 50% to 25% of the amount not withdrawn. If you correct the error within 2 years (take the missed distribution), the penalty drops to 10%. File Form 5329 and request a waiver - IRS often grants relief for reasonable errors.
When do RMDs start?
Age 73 for those born 1951-1959. Age 75 for those born 1960 or later (SECURE 2.0). Your first RMD is due by April 1 of the year after you turn the applicable age. All subsequent RMDs are due by December 31. Taking two RMDs in one year can increase your tax bracket.
How is RMD calculated?
RMD = Account balance (as of December 31 prior year) ÷ Life expectancy factor. The IRS provides life expectancy tables based on age. At 73: factor is 26.5. At 80: 20.2. At 90: 12.2. The percentage increases each year - from about 3.8% at 73 to over 8% at 90.
Which accounts require RMDs?
RMDs required: Traditional IRA, SEP IRA, SIMPLE IRA, 401(k), 403(b), 457(b), profit-sharing plans. RMDs NOT required: Roth IRA (during owner's lifetime), Roth 401(k) (after 2024, thanks to SECURE 2.0). Health Savings Accounts don't have RMDs either.
Can I take more than the RMD?
Yes, you can withdraw any amount above the RMD. But remember all withdrawals are taxed as ordinary income. Some strategies: take more in low-income years, smooth out retirement income, or intentionally withdraw more to stay in a lower bracket before Social Security starts.
What if I'm still working at 73?
For 401(k)/403(b) at your CURRENT employer, RMDs can be delayed until you retire (still working exception). Does NOT apply to IRAs or old 401(k)s from previous employers. Many people roll old 401(k)s into current plan to use this exception.
Can I do a Qualified Charitable Distribution (QCD)?
Yes, if you're 70½+. You can transfer up to $100,000/year directly from IRA to charity. It counts toward your RMD but isn't included in taxable income. Great strategy if you don't itemize deductions or want to reduce MAGI for Medicare premiums.
How do RMDs affect taxes?
RMDs are taxed as ordinary income. Large RMDs can: push you into higher bracket, trigger Social Security taxation (up to 85%), increase Medicare premiums (IRMAA), reduce ACA subsidies. Strategic pre-RMD Roth conversions can minimize these impacts.
What about inherited IRAs?
Non-spouse beneficiaries (post-2020 SECURE Act) must empty inherited IRAs within 10 years. No annual RMDs required, but full withdrawal by end of year 10. Spouse beneficiaries can roll over to own IRA and follow normal RMD rules. Eligible designated beneficiaries have exceptions.
Background & Theory
RMDs force withdrawals from tax-deferred accounts, ensuring the IRS eventually collects taxes on pre-tax contributions and growth. Understanding RMD rules helps minimize taxes and avoid penalties.
RMD Basics:
| Starting Age | Born |
|---|---|
| 72 | Before 1951 |
| 73 | 1951-1959 |
| 75 | 1960+ |
RMD Calculation:
RMD = Prior Year-End Balance ÷ Life Expectancy Factor
Uniform Lifetime Table (Selected):
| Age | Factor | % of Balance |
|---|---|---|
| 73 | 26.5 | 3.77% |
| 75 | 24.6 | 4.07% |
| 80 | 20.2 | 4.95% |
| 85 | 16.0 | 6.25% |
| 90 | 12.2 | 8.20% |
Accounts Subject to RMDs:
| Account Type | RMDs Required? |
|---|---|
| Traditional IRA | Yes |
| 401(k), 403(b), 457 | Yes |
| SEP IRA, SIMPLE IRA | Yes |
| Roth IRA | No (owner) |
| Roth 401(k) | No (after 2024) |
Strategies to Reduce RMDs:
- Roth conversions before 73 - Convert Traditional to Roth, pay taxes at current rate, no future RMDs on that money
- Qualified Charitable Distributions - Direct up to $100K/year to charity, counts toward RMD, not taxable income
- Delay first RMD - But beware of bunching two in one year
- Still working exception - 401(k) at current employer can delay RMDs
Tax Impact of RMDs:
RMDs can trigger:
- Higher marginal tax bracket
- Social Security taxation (up to 85%)
- Medicare IRMAA surcharges
- Net Investment Income Tax (3.8%)
- Loss of ACA subsidies
RMD Mistakes to Avoid:
- Missing deadline (25% penalty)
- Calculating from wrong balance
- Forgetting about old 401(k)s
- Not aggregating IRAs correctly
- Taking two RMDs in first year
Aggregation Rules:
- Multiple IRAs: Calculate separately, withdraw from any
- 401(k)s: Calculate AND withdraw from each separately
- 403(b)s: Can aggregate like IRAs