Executive summary

Updated for September 2026: Linda, a 2024 retiree, used consolidation, staged Roth conversions and a donor-advised fund funded by IRA transfers to lower projected lifetime taxable income, preserve Roth assets for heirs and keep near-term Medicare IRMAA exposure low. Changes in law and industry practice since 2024 — most importantly SECURE Act 2.0’s RMD-age framework and improved custodian QCD processing — extended her planning window and reduced administrative friction.

Background: who is Linda and where she started

Linda retired in mid-2024 at age 66. At retirement her income picture was: a $20,000 defined-benefit pension, about $22,000 in annual Social Security (she claimed at 66), and retirement-account balances totaling roughly $820,000: a current 401(k) of $120,000, an old 403(b) of $80,000, and a traditional IRA of $620,000.

Her objectives were unchanged from 2024–26: (1) avoid creating taxable-income spikes that would raise Medicare premiums under IRMAA, (2) manage future required minimum distributions (RMDs) so they didn’t force large taxable withdrawals, and (3) create a tax-efficient Roth legacy for heirs while maintaining planned charitable support for two longtime charities.

Key rules and 2026 developments that shaped the updated plan

  • RMD age (SECURE Act 2.0): RMDs are still governed by SECURE Act 2.0; the RMD start age is 73 for those who reach age 72 after Dec. 31, 2022 and before Jan. 1, 2033. That gives many recent retirees — including Linda — a longer conversion window before RMDs begin (Linda’s first RMD year will be 2031, when she turns 73).
  • QCD limit: As of September 2026, the annual qualified charitable distribution (QCD) cap remains $100,000 per individual and QCDs must come from an IRA custodial account directly to a qualified public charity. QCDs count toward an RMD in the year the distribution is made.
  • Roth conversions: Conversions of traditional IRA assets to Roth IRAs are taxable in the conversion year at ordinary income rates; recharacterizations of conversions remain disallowed (a rule eliminated in 2018).
  • Custodian and DAF operations: Since 2023–2025, many custodians and major donor-advised-fund providers implemented electronic QCD-to-DAF transfers and clearer documentation workflows, reducing the administrative risk that previously caused processing errors or IRS questions.

Challenge: what Linda needed to solve (2024–2026)

Two dynamics shaped Linda’s decisions in 2024–26. First, delaying RMDs to age 73 provided a multi-year “low-income” window in which Roth conversions could be executed without immediate RMD constraints. Second, Linda wanted to continue meaningful charitable support without those grants being taxed to her heirs or pushing her into higher MAGI-based Medicare surcharges.

Specific constraints: Linda’s modest pension and Social Security produced predictable baseline income; her IRA assets were large enough that without action future RMDs at 73+ could materially raise taxable income and IRMAA exposure for Medicare. She also preferred to concentrate charitable giving into a DAF for multi-year grant timing.

Solution: the updated strategy (through Sept 2026)

The adviser recommended a three-part approach, updated to exploit the longer RMD window and improved processing options available in 2026:

  1. Consolidate workplace accounts into the IRA to simplify conversions and QCD calculations.
  2. Staged Roth conversions executed across multiple low-income years to shift taxable assets to tax-free Roth space before RMDs begin.
  3. Use a donor-advised fund (DAF) plus QCDs to bunch charitable giving in selected years while making IRA-origin transfers that reduce taxable income when needed.

Implementation: concrete steps and timeline (2024–2026)

2024 — Consolidation and documentation

Linda consolidated her 401(k) and 403(b) into her traditional IRA in Q3 2024. The consolidated IRA balance after rollover: $820,000. Consolidation simplified tax reporting and made subsequent Roth-conversion sizing and QCD tracking easier; Linda obtained written confirmation from each former plan and from the IRA custodian that the rollovers were trustee-to-trustee and preserved tax basis.

2025 — Establish a DAF and initial conversion planning

In early 2025 Linda opened a donor-advised fund at a regional community foundation that offered electronic acceptance of IRA QCD transfers. Her adviser ran year-by-year modeled MAGI projections through 2032 to identify the tax brackets she could use for conversions without triggering IRMAA surcharges. That modeling included projected indexing of Medicare thresholds and conservative assumptions about market returns.

2025–2026 — Staged conversions while MAGI stayed low

Linda executed staged Roth conversions timed to low-income years: $35,000 in 2025 and $45,000 in 2026 (total $80,000 converted through Sept 2026). Conversions were sized to utilize remaining lower marginal-tax brackets after standard deduction and taking into account expected credit-phaseouts related to MAGI. Custodian records showed the conversions were processed as taxable rollovers into a newly opened Roth IRA at the same provider, avoiding custody mismatches that can complicate recordkeeping.

Ongoing charitable plan (2026 and projected forward)

Because Linda is not yet in an RMD year, she has not relied on QCDs to satisfy RMDs. Instead she planned to use QCDs beginning in 2031 (first RMD year) when RMDs might increase taxable income. In addition, the DAF gives her flexibility to bunch gifts in years in which she elects to use QCDs into the DAF and then distribute grants to charities over a multi-year period.

Results and measurable outcomes to date (through Sept 2026)

  • Roth balance established: $80,000 moved to Roth by end of 2026; Roth now growing tax-free and will not generate RMDs for Linda during her lifetime.
  • Traditional IRA reduced: The consolidated traditional IRA fell from $820,000 to approximately $740,000 after the first two conversion years (market changes excluded), lowering the base that will generate RMDs starting in 2031.
  • Administrative friction reduced: Consolidation and working with a custodian that supports electronic QCDs and conversion reporting reduced tax-filing complexity; Linda’s 2025–26 1099-R reporting matched the adviser’s projection (no amendments required).
  • Projected IRMAA management: Modeling shows that, had Linda deferred conversions into a later high-income year, she faced a significant risk of crossing IRMAA thresholds when RMDs start. By converting earlier and planning QCDs into a DAF in RMD years, she has a practical pathway to reduce MAGI in future high-withdrawal years.

Why the approach worked in 2026 (and why it’s more attractive now)

  1. Longer conversion window: SECURE Act 2.0’s RMD timing gives many recent retirees several non-RMD years to perform staged Roth conversions — reducing pressure to convert large lumps in one year.
  2. Improved custodial operations: By 2026 more custodians and DAF providers support electronic QCD transfers and provide clear documentation, reducing processing risk that previously caused IRS inquiries.
  3. Integrated modeling: Linda’s adviser modeled not just taxes but projected MAGI-triggered Medicare surcharges (IRMAA) and estate-tax impacts, allowing conversions sized to achieve multiple goals simultaneously.
  4. Fit-for-purpose giving: Using a DAF funded by IRA transfers (via QCDs) allowed Linda to bunch large charitable gifts without creating taxable spikes for heirs or materially increasing her MAGI during critical years.

Practical pitfalls, compliance notes and 2026 cautions

  • QCDs must be transferred from an IRA custodian directly to the public charity or DAF to qualify. Even with better electronic options, get written confirmation from the receiving DAF and retain bank/custodian records showing the transfer date and amount.
  • QCDs to donor-advised funds are permitted, but the IRS and many custodians expect contemporaneous documentation showing the DAF accepted the IRA transfer. Do not rely on promises of retrospective acknowledgements.
  • Roth conversions are permanent (recharacterizations are still disallowed). Conversion years increase taxable income and can affect income-tested programs; always run IRMAA and benefits modeling before large conversions.
  • When RMDs begin you cannot count the RMD itself toward a conversion for that year; conversions must be executed net of that year’s RMDs.

Lessons learned (how readers can apply this now)

1) Reassess your RMD timing post-SECURE 2.0: If you have years before age 73, map those years as opportunities for staged Roth conversions.

2) Use QCDs strategically in actual RMD years: With a DAF in place, QCDs can both satisfy charitable commitments and reduce taxable income in years when RMDs would otherwise push you into higher brackets or IRMAA bands.

3) Confirm custodian and DAF workflows in advance: Ask for written procedures and sample acknowledgements for QCD-to-DAF transfers and for 1099-R processing on conversions.

4) Model Medicare and MAGI effects year-by-year: Medicare-surcharge thresholds are indexed and can change; run scenarios showing how conversions and QCDs affect both federal tax and benefits.

5) Size conversions — don’t guess: Convert in pieces sized to stay within targeted marginal brackets and to limit one-year impacts on credits and surcharges.

Takeaways

  • SECURE Act 2.0’s later RMD age gives many retirees a bigger window to build a Roth ladder before RMDs begin.
  • QCDs into a DAF remain a practical way to combine charitable goals with taxable-income management — but documentation and custodian workflows matter.
  • Staged Roth conversions, properly modeled to avoid IRMAA thresholds, can materially reduce future RMD-driven tax exposure and create a tax-free legacy for heirs.
  • Consolidation simplifies calculations — but check plan rules and basis issues before rolling workplace accounts.
  • Coordination between tax planning and benefits modeling (Medicare, Social Security) is essential — not optional.

FAQ

Is the QCD annual limit still $100,000 in 2026?

Yes. As of September 2026 the per-person annual QCD cap remains $100,000 and QCDs must be made from an IRA directly to a qualified charity to be excluded from taxable income. Confirm current limits each tax year with IRS Publication 590-B or your tax adviser because Congress can change limits and indexing periodically.

Can I use a QCD to fund a donor-advised fund?

Yes. QCDs to donor-advised funds are generally permissible, but they require careful documentation. Since 2023 many custodians and DAFs improved electronic transfer procedures; even so, ask the DAF and IRA custodian for a written acknowledgement showing the IRA origin and date received, and retain that for tax reporting.

How does SECURE Act 2.0 change my Roth conversion timing?

SECURE Act 2.0 raised the RMD age (73 for most people through 2032), which creates more pre-RMD years in which to execute staged Roth conversions. That extended window often lets you spread conversions over multiple years to avoid hitting higher tax brackets or IRMAA thresholds.

Will converting now always reduce taxes for my heirs?

Not automatically. Converting to Roth removes distribution-tax obligations for heirs on that converted portion, but heirs still face the inherited-IRA distribution rules (for most non-spouse beneficiaries, a 10-year window under current law). Conversions cost tax in the conversion year, so you must weigh current tax rates, estate size and heirs’ expected tax circumstances before converting.

What documentation should I insist on before doing QCDs or conversions?

Get written, date-stamped confirmations from the IRA custodian and the receiving charity/DAF showing: (a) the transfer amount, (b) that funds came from an IRA, (c) the date of the transfer, and (d) the charity’s tax-exempt status (EIN). For conversions, retain the 1099-R and the Roth-account statements showing the converted amount and date.

Bottom line: Linda’s updated plan illustrates how a longer pre-RMD period (SECURE Act 2.0), improved QCD/DAF processing and careful modeling combine to make staged Roth conversions plus strategic QCDs a practical, lower-friction way to tame future RMDs, manage Medicare-surcharge risk and leave a clearer tax-free legacy.