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Required Minimum Distributions (RMDs): Complete Planning Guide

Everything you need to know about RMDs from 401(k)s and IRAs. Learn calculation methods, deadlines, penalties, and strategies to minimize taxes on required withdrawals.

Dr. Robert Anderson, CFP, CPA
September 20, 2026
21 min read

Required Minimum Distributions (RMDs): Complete Planning Guide

Required Minimum Distributions are mandatory withdrawals from tax-deferred retirement accounts starting at age 73 (as of 2023). Understanding RMDs is essential for retirement planning, as failure to take them results in severe penalties. This guide covers everything you need to know about RMDs and strategies to manage them effectively.

Understanding RMDs

What Are RMDs?

AspectDetails DefinitionMinimum amounts you must withdraw from retirement accounts PurposeIRS wants to collect deferred taxes Applies toTraditional 401(k), Traditional IRA, SEP IRA, SIMPLE IRA Does not apply toRoth IRA (during owner's lifetime), Roth 401(k) (as of 2024)

RMD Starting Ages (SECURE Act 2.0)

Birth YearRMD Starting Age 1950 or earlier72 (already started) 1951-195973 1960 or later75

First Year RMD Deadline

ScenarioDeadline First RMDApril 1 of year after reaching RMD age All subsequent RMDsDecember 31 of each year

Warning: If you delay your first RMD to April 1, you must take two RMDs that year (first year's delayed + current year).

Calculating Your RMD

The Basic Formula

``` RMD = Account Balance (Dec 31 prior year) ÷ Life Expectancy Factor ```

IRS Uniform Lifetime Table (Most Common)

AgeFactorAgeFactor 7326.58317.7 7425.58416.8 7524.68516.0 7623.78615.2 7722.98714.4 7822.08813.7 7921.18912.9 8020.29012.2 8119.49111.5 8218.59210.8

Sample RMD Calculation

FactorValue Account balance (Dec 31 prior year)$500,000 Age75 Life expectancy factor24.6 RMD amount$20,325

When to Use Different Tables

TableUse When Uniform LifetimeDefault for most people Joint LifeSpouse is sole beneficiary AND more than 10 years younger Single LifeBeneficiaries taking inherited IRA RMDs

Accounts Subject to RMDs

Accounts That Require RMDs

Account TypeRMD Required?Notes Traditional IRAYesAggregate all Traditional IRAs Traditional 401(k)YesEach plan calculated separately 403(b)YesCan aggregate with other 403(b)s 457(b)YesGovernment plans SEP IRAYesTreated like Traditional IRA SIMPLE IRAYesTreated like Traditional IRA Roth 401(k)No (as of 2024)SECURE Act 2.0 change Roth IRANoDuring owner's lifetime

Aggregation Rules

Account TypeAggregation Rule Traditional IRAsCalculate total RMD; take from any IRA(s) 403(b)sCalculate total RMD; take from any 403(b)(s) 401(k)sEach plan's RMD must come from that plan Inherited IRAsEach inherited IRA calculated separately

RMD Strategies

Strategy 1: Minimize Lifetime RMDs

TacticHow It Works Roth conversions before RMD ageReduce Traditional balance Delay Social SecurityLower tax bracket for conversions Qualified Charitable DistributionsReduce taxable RMD Strategic Roth 401(k) useNo RMDs from Roth accounts

Strategy 2: Tax Bracket Management

ActionWhen Take extra withdrawalsIn lower-income years Limit withdrawalsIn higher-income years Convert to RothWhen in lower brackets Use QCDsTo satisfy RMD tax-free

Strategy 3: Qualified Charitable Distributions (QCDs)

FeatureDetails EligibilityAge 70½+ Maximum$105,000 per year (2026) Counts toward RMDYes Tax treatmentNot included in income RequirementsDirect transfer to charity

Example QCD Benefit:

MethodTaxable Income Impact Take RMD, donate separately+$20,000 income (itemize to deduct) QCD$0 income impact

Strategy 4: Roth Conversions Before RMDs

YearActionTax Impact Pre-73 (year 1)Convert $50,000~$7,000 tax Pre-73 (year 2)Convert $50,000~$7,000 tax Pre-73 (year 3)Convert $50,000~$7,000 tax Pre-73 (year 4)Convert $50,000~$7,000 tax ResultReduced $200,000 in Traditional IRALower future RMDs

RMD Penalties

Failure to Take RMD

PenaltyDetails Previous penalty50% of amount not withdrawn Current penalty (SECURE 2.0)25% of amount not withdrawn Reduced penalty10% if corrected in timely manner

How to Correct a Missed RMD

StepAction 1Take the missed RMD immediately 2File Form 5329 3Request penalty waiver (letter of explanation) 4Pay any reduced penalty due

Reasonable Cause Letter Template

Include:

  • What happened
  • When you discovered the error
  • What you did to correct it
  • Steps to prevent future missed RMDs

Inherited IRA RMD Rules

SECURE Act Changes (Deaths After 2019)

Beneficiary TypeRule SpouseCan treat as own OR use life expectancy Eligible designated beneficiaryLife expectancy method Non-eligible designated beneficiary10-year rule Non-designated beneficiary5-year rule

Eligible Designated Beneficiaries

Who QualifiesRule Surviving spouseMost flexible options Minor childrenLife expectancy until majority, then 10-year Disabled individualsLife expectancy Chronically illLife expectancy Not more than 10 years youngerLife expectancy

10-Year Rule Details

RequirementDetails Empty account byEnd of 10th year after death Annual RMDs requiredOnly if owner died after RMD age began FlexibilityCan take any amount, any year (within 10 years)

Tax Planning With RMDs

IRMAA Considerations

RMDs affect Medicare premiums (IRMAA) two years later:

Single MAGIPart B Premium Impact (2026) ≤$103,000Standard ($174.70) $103,001-$129,000+$69.90 $129,001-$161,000+$174.70 $161,001-$193,000+$279.50 $193,001-$500,000+$384.30 >$500,000+$419.30

Social Security Taxation

Combined Income (Single)SS Taxable Under $25,0000% $25,000-$34,000Up to 50% Over $34,000Up to 85%

RMDs can push more Social Security benefits into taxable territory.

State Tax Considerations

State TreatmentExamples No income taxFL, TX, WA, NV, WY Full exemption for retirementPA, MS Partial exemptionMany states Full taxationCA, NY, NJ

RMD Planning Timeline

Age 55-65: Early Planning

ActionPurpose Project future RMDsUnderstand tax impact Consider Roth conversionsReduce future RMDs Evaluate account locationsOptimize for RMD rules

Age 65-72: Pre-RMD Period

ActionPurpose Aggressive Roth conversionsFill lower tax brackets Delay Social Security if possibleLower income for conversions Set up QCD strategyPrepare for charitable giving

Age 73+: RMD Period

ActionTiming Calculate RMDJanuary of each year Take RMDBefore December 31 Consider QCDsIf charitable Review tax withholdingAdjust W-4P as needed

Working While Subject to RMDs

Still-Working Exception

AccountException Available? Current employer 401(k)Yes, if not 5%+ owner Previous employer 401(k)No Traditional IRANo

Strategy: Roll old 401(k)s into current employer plan to delay RMDs on that money.

Rolling to Current Employer Plan

StepAction 1Verify current plan accepts rollovers 2Roll Traditional IRA and old 401(k)s into current 401(k) 3Continue working past 73 4RMDs not required on current 401(k) while working 5RMDs begin after separation from service

Common RMD Mistakes

Mistake 1: Missing the First RMD Deadline

ErrorSolution Forgetting April 1 deadlineSet calendar reminders Taking two RMDs in one yearPlan for tax impact

Mistake 2: Incorrect Calculation

ErrorSolution Wrong balance dateUse Dec 31 prior year Wrong tableUsually Uniform Lifetime Calculation errorUse custodian's calculation

Mistake 3: Not Aggregating Correctly

ErrorSolution Taking 401(k) RMD from IRAEach 401(k) separately Not aggregating IRAsCalculate total, take from any

Mistake 4: Forgetting Inherited Accounts

ErrorSolution Inherited IRA RMD forgottenTrack all inherited accounts Wrong beneficiary rulesUnderstand SECURE Act changes

RMD Checklist by Year

Annual RMD Checklist

TaskTiming Get Dec 31 balancesJanuary Calculate each account's RMDJanuary Decide withdrawal strategyJanuary-February Set up QCDs if charitableBefore RMD Take RMDBy December 31 Verify RMD completedDecember File Form 5498 (if applicable)January (received)

Conclusion

RMDs are a critical part of retirement planning:

  • Start planning early to minimize lifetime RMDs
  • Use Roth conversions before RMDs begin
  • Consider QCDs for tax-efficient charitable giving
  • Never miss a deadline to avoid penalties
  • Understand aggregation rules for accurate compliance
  • Factor in IRMAA and SS taxation for complete planning

With proper planning, you can minimize the tax impact of RMDs while ensuring compliance with IRS requirements.

Related Resources

Last updated: January 12, 2026

Disclaimer

This content is for informational purposes only and should not be considered financial, tax, or legal advice. Consult with a qualified professional before making financial decisions. TaxMaker strives for accuracy but cannot guarantee all information is current or complete. Past performance does not guarantee future results.