RMD Tax Pressure in 2026: Strategies for Large IRA/401(k) Balances

Overview

Retirees holding large pre-tax 401(k) and IRA balances face a predictable structural issue: required minimum distributions (RMDs) that grow with age and can push taxable income into zones that change Social Security taxation, Medicare IRMAA surcharges and marginal tax rates. In October 2026 the problem looks familiar but the landscape has shifted—SECURE Act 2.0 provisions are in force, annuity pricing has improved after 2022–25 rate moves, and planners increasingly model IRMAA two-year lookbacks when staging conversions or withdrawals. This update shows what has changed since mid-2026, which tactics remain most effective and what to model now.

Background: what changed since the original piece

• SECURE Act 2.0 implementation: The law that passed in late 2022 (commonly called SECURE Act 2.0) raised the RMD starting age to 73 for most retirees beginning in 2023; the age rises further to 75 in 2033. It also eliminated RMDs for Roth 401(k) accounts effective January 1, 2024—a meaningful tactical shift for plan-level Roth balances.
• IRS life-expectancy tables: The updated IRS uniform lifetime tables released in 2022 continue to apply, lowering RMD percentages relative to older tables and slightly buffering RMD pressure for many.
• Interest-rate and annuity market changes: Higher interest rates since 2022 have increased many guaranteed-income payouts (SPIAs and fixed indexed annuities) compared with pre-2022 pricing. That widens viable annuitization choices for some retirees, but annuity taxation and the source account (taxable vs pre-tax) remain critical.
• IRMAA and Medicare lookback remains consequential: Medicare uses MAGI from two years prior to set Part B/D IRMAA surcharges. That timing continues to make the sequencing of Roth conversions and large withdrawals a multi-year planning problem.

Data and evidence: how big are RMDs in practice today?

The IRS uniform lifetime table still drives RMD percentages, which rise with age even after the 2022 table update. Typical practical ranges for a single-owner IRA are:

• Early RMD years (age 73–74): roughly 3.0%–4.0% of balance
• Late 70s–early 80s: about 4.0%–5.5%
• Mid-80s and beyond: commonly 5%–8% depending on age

Illustrative example: a $1.3 million pre-tax IRA at age 73 (post-SECURE 2.0 starting age) could produce a first-year RMD in the neighborhood of $40,000–$50,000. That magnitude is material: added to Social Security and pension income it can raise taxable income enough to change marginal federal/state bracket, increase the taxable portion of benefits, and trigger Medicare IRMAA.

Why this matters now (October 2026)

• More households reached RMD-triggering ages after the large accumulation years of the 2010s–early 2020s; the cohort effect means more households face larger dollar RMDs now.
• Annuity pricing has become more attractive for some purchasers, changing the tradeoffs between taking taxable RMDs vs buying lifetime income funded from taxable or pre-tax sources.
• Policy levers that might reduce IRMAA or broaden QCDs remain politically debated but unchanged; planners must assume current MAGI lookback rules and QCD law (current maximum QCD application practices) remain in force absent new legislation.

Updated household archetypes (fresh, practical examples)

Profile A — Pre-tax heavy (illustrative)

• Balances: $1.3M pre-tax IRA; $100k Roth; no pension
• Retirement income: Social Security $28k/year
• Situation: At age 73 the initial RMD ~3.8% creates a taxable layer of ~$50k. That can push taxable income so that up to 50%–85% of Social Security becomes taxable (depending on provisional income thresholds) and may trigger IRMAA surcharges in the two following calendar years.

Profile B — Roth-optimized

• Balances: $600k Roth IRA; $400k Roth 401(k) rolled to Roth IRA before RMD age; $200k taxable
• Retirement income: Social Security $30k/year
• Situation: Eliminating RMDs from Roth 401(k) (via roll to Roth IRA) and holding Roth IRAs reduces MAGI spikes and gives flexibility to manage IRMAA and Social Security taxable thresholds.

Profile C — Pension plus RMDs

• Balances: $18k/year pension (lifetime); $500k pre-tax; $100k Roth
• Situation: When RMDs are layered on top of pension income, even modest RMDs can push the household across IRMAA and Social Security taxable thresholds. Partial Roth conversions in earlier low-income years are often recommended here.

How RMDs amplify taxes and premiums: concrete mechanics

1. Social Security taxation: RMD dollars increase provisional income (AGI plus tax-exempt interest plus half of Social Security); more provisional income can convert non-taxable Social Security into taxable income.
2. Medicare IRMAA: MAGI two years prior determines Part B/D surcharges. A single large conversion or RMD spike can raise monthly Medicare costs for years, sometimes exceeding the immediate tax cost.
3. State taxes and means tests: Several states tax retirement income; a higher federal AGI may change state tax bills or eligibility for state benefits or Medicaid planning thresholds.

Updated practical strategies and trade-offs (what to do now)

1. Use staged Roth conversions timed against IRMAA lookback

Converting pre-tax dollars to Roth over several years remains central. In 2026 many planners recommend multi-year, income-smoothing conversions that take into account the two-year Medicare lookback—i.e., avoid completing large conversions in the calendar year that will be used for IRMAA calculation unless you are prepared for higher premiums. Remember: RMDs must be satisfied before any conversion in the same year once RMD age applies.

2. Roll Roth 401(k) to Roth IRA before RMDs apply

Because SECURE Act 2.0 eliminated plan-level Roth RMDs effective 2024, many people have new flexibility. However, if your employer plan still enforces RMDs for plan Roth accounts (some plans vary), a rollover to a Roth IRA prior to the RMD year removes plan RMD exposure and preserves tax-free Roth growth without RMDs.

3. Use Qualified Charitable Distributions (QCDs) intelligently

QCDs (up to $100,000 per year per person under current practice) remain a direct way to satisfy RMDs without increasing taxable income. QCDs reduce AGI in the year they are made and therefore can blunt IRMAA and Social Security taxation effects—but QCDs must be executed to qualified charities and meet IRS rules.

4. Consider partial annuitization where appropriate

Higher annuity payouts since 2022 have made partial annuities more attractive for some retirees seeking stable income and lower portfolio drawdown. Be explicit about tax sourcing: annuity payments purchased with pre-tax dollars will be taxable and may not reduce RMD pressures unless structured carefully.

5. Hold tax-efficient taxable buffers

Retention of taxable brokerage assets—managed for long-term capital gains and tax-loss harvesting—adds flexibility: selling appreciated long-term positions often produces lower effective tax friction than ordinary-income RMDs.

6. Model spouse and state tax interactions

For married couples filing jointly, one spouse’s RMDs can affect both spouses’ IRMAA and Social Security taxable amounts. State tax rules vary widely—consult state resources and model state-level outcomes explicitly.

Modeling matters: run the numbers with updated assumptions

Small assumption changes can reverse the preferred strategy. Use planning software or a fee-only fiduciary that can simulate:

• Projected RMDs using the current IRS tables and SECURE Act 2.0 starting ages
• Multi-year Roth conversion tax scenarios with MAGI/IRMAA lookback effects
• Impact of QCDs on AGI, Social Security taxation and state taxes
• Sensitivity to different market return assumptions and mortality tables

Implications for readers

If you have large pre-tax balances, treat RMDs as a structural income source, not a nuisance. The sequencing of conversions, QCDs, annuitization and Social Security claiming affects lifetime after-tax income materially—often by tens of thousands of dollars over a retirement horizon. Given SECURE Act 2.0 and current IRMAA rules, early planning (in your late 60s and early 70s) to smooth taxable income and reduce MAGI spikes is especially valuable.

Outlook: what to watch next

• Congressional tax policy: any change to IRMAA calculation, QCD limits or RMD rules would materially alter planning priorities.
• Medicare rule updates: watch for administrative changes to IRMAA thresholds or indexing methodology that could reduce or increase surcharge exposure.
• Market and rate environment: annuity pricing and safe withdrawal rate assumptions will continue to respond to long-term interest rate levels—monitor guaranteed-income markets if annuitization is in scope.
• State-level reforms: a growing number of states have considered tax treatment of retirement income—state rules can change the calculus for Roth vs. pre-tax positioning.

Action checklist (practical next steps)

1. Run a three-decade cash-flow model that includes RMDs under the current IRS tables, Social Security claiming scenarios and IRMAA two-year lookback impacts.
2. Design multi-year Roth conversions to smooth taxable income—explicitly model the Medicare premium impact two years forward.
3. Consider QCDs if charitable intent exists; remember current QCD practical guidance and limits when applied.
4. Assess whether a Roth 401(k) rollover to a Roth IRA before RMD age improves flexibility.
5. Talk to a fee-only fiduciary or tax advisor who will run married-filing and state-tax scenarios.

Bottom line

RMDs remain a pivotal driver of lifetime tax costs and benefit interactions in 2026. SECURE Act 2.0 shifted timing and created new tactical options (notably the Roth 401(k) RMD elimination), and higher interest-rate conditions have expanded annuity choices. But IRMAA’s two-year lookback and Social Security taxation still amplify the marginal effect of RMDs. Detailed modeling that includes these secondary effects—and a staged approach to Roth conversions, QCDs and selective annuitization—can materially lower the lifetime tax and premium drag for households with large pre-tax balances.

Should I start Roth conversions now?

Possibly—if you can convert in years where your taxable income remains low enough to keep you beneath IRMAA and marginal-bracket thresholds. Prioritize multi-year, staged conversions. Avoid creating a one-year MAGI spike that raises Medicare premiums for several future years.

Can QCDs eliminate IRMAA exposure?

QCDs reduce taxable income because they satisfy RMDs without reporting the distribution as taxable income, which can lower MAGI and potentially prevent IRMAA surcharges. However, QCDs must be made to qualified charities and meet IRS rules; they’re effective only if charitable intent aligns with the tax planning goal.

Do Roth 401(k) balances still create RMDs?

Since January 1, 2024 plan-level Roth RMDs were eliminated under SECURE Act 2.0. However, plan designs and provider implementations vary; rolling a Roth 401(k) into a Roth IRA before the RMD year removes any ambiguity and eliminates RMDs entirely for that Roth balance.

Will buying an annuity reduce RMD pressure?

Annuities purchased with pre-tax funds will generate taxable income and may not reduce RMDs unless structured to replace taxable withdrawals from other accounts. Purchasing annuities with taxable or Roth dollars can provide guaranteed income without increasing ordinary taxable income—structure and tax source matter.