L3 Ch3 L1 produced the RMD calendar across the book, including the inherited IRA cohort. This lesson takes that cohort and runs the deep workflow: beneficiary classification under SECURE 2.0 (eligible designated beneficiary vs non-eligible designated beneficiary, distinguishing surviving spouse / minor child / disabled / chronically ill / not-more-than-10-years-younger from all others), the 10-year deadline math, the year-by-year withdrawal optimization to smooth tax brackets across the window, the recently-clarified annual-RMD-during-10-year-window question (whose final IRS guidance landed in 2024 after years of ambiguity), and the Reg BI documentation that makes the strategy defensible. The deliverable per inherited-IRA household: the 10-year withdrawal plan with annual targets, the tax-bracket projection across the window, the coordination with the beneficiary's own planning workflows, and the Reg BI evidence file.

The Beneficiary Classification — EDB vs Non-EDB

SECURE Act (December 2019, effective for deaths in 2020+) introduced a binary classification that drives 90% of inherited-IRA strategy. Eligible designated beneficiaries (EDB) are: surviving spouse, minor child of decedent (until reaching age of majority — typically 21 — then transitioning to 10-year rule from that point), disabled (per §72(m)(7) standards or Social Security disability), chronically ill (per §7702B(c)(2) standards), and any designated individual not more than 10 years younger than the decedent. EDBs retain the lifetime stretch ability under the Single Life Table, with their own life-expectancy schedule.

Non-eligible designated beneficiaries (non-EDB) are everyone else: adult children of decedent (other than disabled/chronically ill), grandchildren, nieces/nephews, friends, partners (other than legal spouses), unrelated individuals, and qualifying trusts (see-through trusts that don't qualify for EDB stretch). Non-EDBs are subject to the 10-year rule: complete distribution of the inherited IRA by December 31 of the 10th year after the decedent's death.

Non-designated beneficiaries are non-individual recipients: estates, charities, non-qualifying trusts. They are generally subject to the 5-year rule (if decedent died before RMD age) or to the decedent's remaining life-expectancy schedule (if decedent died after RMD age) — though the 10-year rule may apply in some circumstances per the post-SECURE regs.

Surviving-Spouse Special Election

The surviving spouse has unique options: (a) treat the inherited IRA as the spouse's own (election common, especially if spouse is younger than decedent — defers RMD start to the spouse's own age 73 with Uniform Lifetime Table); (b) maintain as inherited IRA with stretch under Single Life Table (sometimes preferred if spouse is under 59.5 and needs penalty-free access to the inherited IRA); (c) take the 10-year rule election (rare); (d) under SECURE 2.0, spousal designations have been further enhanced with the surviving-spouse-special-election allowing treatment that maximizes flexibility. The L3 Ch3 L2 workflow's spousal-beneficiary analysis evaluates the trade-offs.

Trust as Beneficiary — See-Through Rules

When a trust is the beneficiary, the trust must qualify as a "see-through" trust to extend EDB or non-EDB classification of the underlying beneficiaries. See-through requirements: the trust is valid under state law, the trust is irrevocable upon decedent's death, beneficiaries are identifiable, and trust documentation reaches the IRA custodian by Oct 31 of the year after decedent's death. The classification then depends on the youngest individual beneficiary's status (or all beneficiaries' status for some trust types). Trusts that fail see-through get the 5-year rule or decedent's-remaining-life-expectancy. Conduit trusts (which require immediate distribution to beneficiary) vs accumulation trusts (which can retain distributions in trust) have different SECURE 2.0 implications — the L3 Ch5 estate workflow's beneficiary review interacts with this analysis.

The Annual-RMD-During-Window Question — The 2024 Final IRS Guidance

For non-EDBs subject to the 10-year rule, the question of whether annual RMDs are required during years 1-9 of the window (in addition to the year-10 full-distribution requirement) was ambiguous from 2020-2024. The IRS finally provided clarifying regulations in July 2024 with the answer: annual RMDs ARE required during years 1-9 IF the decedent had started their own RMDs before death (decedent was "in pay status"). Annual RMDs are NOT required during years 1-9 if the decedent died before reaching their RMD-start age (decedent died "pre-pay-status"). In either case, the year-10 complete distribution remains required.

For deaths during 2020-2024 where the IRS had granted relief from the §4974 excise tax for missed annual RMDs during the ambiguous-guidance years, the L3 Ch3 L2 workflow now requires going-forward annual RMDs in years 2025+ for any beneficiary whose decedent died in pay status. Catchup distributions for prior years are not retroactively required under the relief, but the going-forward discipline is necessary.

Pay-Status Determination

The L3 Ch3 L2 workflow's source-system checkpoint pulls decedent records to determine pay-status. The pay-status indicators: decedent age at death (deceased at age 73+ for current SECURE 2.0 trigger, or relevant ages under prior regimes); prior-year 1099-R for the decedent showing distributions; estate planning records documenting the decedent's RMD-status. Common edge cases: decedent reached RMD age but had elected the April 1 first-RMD deferral (still considered "should have been in pay status" by the start of the year after age 73 trigger); decedent eligible for still-working exception on §401(k) but had IRA RMDs (IRA pay status applies); decedent had taken voluntary distributions but not "RMDs" specifically.

The 2024 IRS final regulations provide more clarity on edge cases, but ambiguity remains for some scenarios. The workflow's regulatory checkpoint cites the final regulations explicitly and the senior advisor's judgment narrative documents the pay-status determination with the supporting evidence.

Year-by-Year Withdrawal Optimization

For non-EDB beneficiaries with the 10-year window, the year-by-year withdrawal strategy is the core L3 Ch3 L2 deliverable. The optimization smooths the beneficiary's tax brackets across the 10 years by varying annual withdrawal amounts based on the beneficiary's projected income, life-events, IRMAA position (if Medicare-aged), and current vs future tax-bracket expectations.

Level Strategy

Equal annual withdrawals: total inherited balance / 10 = annual withdrawal target. Simple but rarely optimal — beneficiary's income trajectory likely varies, making bracket impact uneven.

Back-Loaded Strategy

Smaller annual withdrawals years 1-5, larger years 6-10. Favors growth within the inherited IRA (continued tax-deferral) at the cost of larger taxable distributions in later years; suitable when beneficiary projects significantly higher income in current years vs later (retirement approach, career exit, etc.).

Front-Loaded Strategy

Larger annual withdrawals years 1-5, smaller years 6-10. Sacrifices tax-deferred growth for bracket-smoothing into current lower-income years; suitable when beneficiary projects income elevation later (career inflection, business sale, Social Security claim, RMD start of beneficiary's own IRA).

Bracket-Fill Strategy

Variable annual withdrawals targeted to fill specific tax brackets (top of 22% or top of 24%) each year based on the beneficiary's projected other income. The most-tax-efficient generally; requires accurate multi-year income projection. Coordinates well with the L3 Ch2 Roth conversion workflow if beneficiary also has own IRA conversions in play.

Coordination With Other Workflows

The 10-year window often overlaps with beneficiary's own planning windows: their own Roth conversion years, their own Social Security claiming decision, their own IRMAA management, life-event windows (retirement, business sale, divorce, inheritance from other sources). The L3 Ch3 L2 workflow's optimization integrates these — typically running the multi-year tax-bracket projection per year of the window with all known income sources, and surfacing the high-leverage years for accelerated withdrawals and the low-leverage years for restraint.

Worked Example: Marcus Kowalski, Non-EDB Adult Child, $850K Inherited IRA

Marcus Kowalski is 47, married, two children in private high school, household W-2 income $310K (his $215K + spouse's $95K). His father Stanislaw died March 14, 2026 at age 78, fully in pay status (had been taking RMDs since age 73 under SECURE 2.0). Stanislaw left Marcus an $850,000 traditional IRA at Schwab. Marcus is non-EDB (adult child, not disabled, more than 10 years younger). The 10-year deadline is December 31, 2036. Annual RMDs during years 1-9 are required because the decedent was in pay status — confirmed by Schwab's 2025 1099-R for Stanislaw showing the $34,600 prior-year RMD.

The advisor runs the bracket-fill projection in RightCapital across the 10-year window with the following inputs: Marcus's projected W-2 trajectory ($310K growing 3.5% annually); spouse's career inflection (planning to step back to half-time in 2030, reducing household W-2 by ~$48K); both children entering college (2028, 2031) with QHEE drawdowns from 529 not directly affecting taxable income; Marcus's own DC plan contributions ($23,500 pre-tax annually plus mega-backdoor); 2026 MFJ bracket structure with top of 24% bracket at approximately $400K taxable income. The "bracket fill to top of 24%" target leaves approximately $90K of conversion-equivalent capacity in 2026, growing to about $135K in 2030-2031 when spouse's reduced income lowers baseline taxable income.

The recommended 10-year withdrawal schedule: 2026 = $50K (modest first-year given timing of inheritance and full W-2 year); 2027 = $80K; 2028 = $85K (first child college start, no income impact); 2029 = $90K; 2030 = $130K (spouse step-down, larger bracket-fill capacity); 2031 = $130K (second child college start); 2032 = $110K; 2033 = $100K; 2034 = $95K; 2035 = $80K. Total: $950K of withdrawals against $850K starting balance plus projected growth at ~6% real, leaving approximately $40K residual due Dec 31, 2036. The annual RMD floor under the Single Life Table (using Marcus's age-47 starting factor of 39.0) is approximately $21,800 first year — well below every year's bracket-fill target, so the bracket-fill schedule satisfies the annual-RMD requirement automatically. The plan flags the year-10 distribution as elevated supervisory sampling and pre-schedules the December 2036 execution in Wealthbox.

Coordination With the Beneficiary's Own Roth-Conversion Window

The L3 Ch3 L2 workflow does not stand alone — it interacts with the beneficiary's other tax-planning levers. For Marcus, the firm also runs an L3 Ch2 Roth-conversion analysis on his own traditional IRA ($340K balance, his own deferral history). The interaction: each dollar of inherited-IRA distribution consumes bracket capacity that could otherwise hold a Roth conversion. The advisor sequences the two: in any given year, the inherited-IRA bracket-fill distribution takes priority because the 10-year deadline is binding; Roth-conversion capacity uses residual bracket room above the inherited-IRA target. In Marcus's case, this means his own Roth conversions are minimal during years 1-9 and accelerate in years 11+ after the inherited IRA is exhausted. The combined memo presents the two strategies as a single integrated 15-year plan rather than two isolated decisions.

For beneficiaries who are themselves IRMAA-aged (over 63), the inherited-IRA bracket-fill must additionally respect the 2-year IRMAA lookback. A $90K inherited-IRA distribution in calendar year 2026 lifts the 2026 MAGI used for 2028 Part B and Part D premium-tier determination. The L3 Ch4 medicare-irmaa workflow's bracket map is overlaid on the 10-year withdrawal schedule for any beneficiary over 63, and the schedule is adjusted to either stay below IRMAA thresholds or to "double-up" in years where IRMAA penalty is already incurred. The pre-Medicare-eligible beneficiary (Marcus, age 47) has no IRMAA constraint and can optimize on bracket alone.

Trust-as-Beneficiary Deep Dive — Conduit vs Accumulation Mechanics

A meaningful minority of inherited-IRA cases name a trust as beneficiary rather than an individual. The mechanics diverge from the individual case in ways the workflow must capture explicitly. A conduit trust requires the trustee to distribute all IRA distributions immediately to the trust's named individual beneficiaries upon receipt. Under SECURE 2.0, the conduit trust's qualifying beneficiary determines EDB vs non-EDB status; if all conduit beneficiaries qualify as EDB (e.g., a conduit trust for a disabled child), the lifetime stretch may apply. If any conduit beneficiary is non-EDB, the trust falls to the 10-year rule. The trust drafting community has migrated toward conduit-only structures for disabled-beneficiary cases to preserve stretch while maintaining special-needs-trust eligibility.

An accumulation trust permits the trustee to retain IRA distributions within the trust rather than passing them through immediately. The accumulation feature is often preferred for spendthrift protection or for second-marriage situations where the grantor wants the surviving spouse to receive income but the remainder to flow to children from a prior marriage. Under SECURE 2.0, accumulation trusts generally fall to the 10-year rule (non-EDB classification) because the ultimate beneficiaries cannot be definitively identified for stretch purposes. The trust's own tax rates apply to any income retained inside the trust — trust compressed brackets reach the 37% bracket at approximately $15,200 of taxable income in 2026, making accumulation-trust IRA distributions very tax-expensive if retained. The L3 Ch3 L2 workflow's recommendation for accumulation-trust beneficiaries typically pushes the trustee toward in-year distribution to the individual beneficiaries (taxed at individual rates) rather than retention, except where spendthrift or creditor concerns dominate.

The Handoff Diagram and Three-Tier Verification

The L3 Ch1 L2 handoff diagram for the inherited-IRA workflow: trigger = household with inherited IRA flagged (RMD calendar L3 Ch3 L1 surfaced as inherited-IRA-bearing); inputs = inherited IRA balance, decedent records (date of death, age at death, pay-status indicators), beneficiary classification source documents (birth certificate for age-not-more-than-10-younger, disability documentation, trust-as-beneficiary documentation, surviving-spouse-election forms), beneficiary's own planning context (RightCapital plan, prior-year 1040 Holistiplan extraction, Wealthbox household state), 10-year window calendar; AI mode = propose (per-year withdrawal recommendation across the window); output = structured JSON per inherited-ira-10yr-schema v2.2 with per-year withdrawal target, projected tax-bracket position, IRMAA impact, coordination flags; verification = three-tier per L3 Ch1 L3.

Source-system: decedent records, beneficiary classification documentation, current balance, prior-year 1099-R history, beneficiary's tax position. Regulatory: SECURE 2.0 §401(a)(9) ages, EDB vs non-EDB classification correct, July 2024 final regulations cited for annual-RMD-during-window question, pay-status determination documented, year-10 deadline calculated correctly, surviving-spouse-special-election if applicable. Client-fit: withdrawal strategy aligns with beneficiary's IPS (if beneficiary is a client of the firm; if just a beneficiary of a deceased client, the firm's relationship and discretion are different), prior-meeting documented beneficiary preferences, beneficiary's life-event projections, multi-workflow coordination with own Roth conversion / SS / IRMAA workflows.

The Deliverable and Archive

The L3 Ch3 L2 deliverable per inherited-IRA household: (1) the beneficiary classification memo (EDB or non-EDB with documented reasoning); (2) the 10-year deadline date with reference to decedent's death date; (3) the year-by-year withdrawal plan (10-year table with annual target, projected bracket fill, IRMAA impact, coordination flags); (4) the Reg BI documentation (per §240.15l-1 four obligations or RIA fiduciary duty); (5) the beneficiary communication memo (1-2 page client-facing summary with right-to-decline acknowledgment); (6) the tax-prep coordination note to the beneficiary's CPA.

Annual execution within the window: the L3 Ch3 L1 RMD calendar pulls each year's target from the 10-year plan and processes the annual distribution. Year 10's final-distribution is the highest-stakes execution — must complete by December 31 of year 10 or the full remaining balance becomes subject to §4974 excise tax. The L3 Ch3 L2 plan flags year-10 households for elevated supervisory sampling and execution monitoring.

Archive package per inherited-IRA per year: the 10-year plan (referenced once at workflow inception), the current-year annual execution per L3 Ch3 L1 RMD calendar, the three checkpoint logs, senior-advisor signoff narrative, custodian distribution form, post-execution confirmation, 1099-R, supervisory review. The 10-year plan is reviewed at each annual update (beneficiary life-events, income changes, tax-law changes may shift the optimal strategy) and the plan version increments accordingly.

Key Takeaways

• SECURE Act binary classification: EDB (surviving spouse / minor child until majority / disabled per §72(m)(7) / chronically ill per §7702B(c)(2) / not more than 10 years younger than decedent) retains lifetime stretch under Single Life Table; non-EDB (everyone else) subject to 10-year rule with complete distribution by Dec 31 year 10.
• Surviving-spouse special election allows treating inherited IRA as spouse's own (often preferred for RMD delay), maintaining as inherited (sometimes preferred for under-59.5 penalty-free access), or other elections under SECURE 2.0 enhanced flexibility.
• Trust-as-beneficiary see-through requires valid state-law trust, irrevocability upon death, identifiable beneficiaries, trust documentation to custodian by Oct 31 year-after. Classification then per youngest-individual or all-beneficiaries-status depending on trust type. Conduit vs accumulation trusts differ.
• The 2024 IRS final regulations clarified the annual-RMD-during-10-year-window question: annual RMDs required years 1-9 IF decedent in pay status at death; NOT required if decedent pre-pay-status. Year-10 complete distribution always required. Going-forward discipline applies; relief granted for missed annual RMDs in 2020-2024 ambiguous-guidance years.
• Pay-status determination requires decedent records: age at death, prior-year 1099-R distributions, estate planning records. Edge cases include April 1 first-RMD-election (still pay-status by year after age 73), still-working §401(k) exception (IRA pay status separately applies), voluntary distributions (not "RMD" specifically).
• Year-by-year withdrawal strategies: level (simple but rarely optimal), back-loaded (favors continued tax-deferral; suitable if beneficiary high-income now, lower later), front-loaded (favors bracket-smoothing into current lower-income years; suitable if beneficiary low-income now, higher later), bracket-fill (most tax-efficient generally; requires accurate multi-year projection).
• Multi-workflow coordination: 10-year window often overlaps beneficiary's own Roth conversion, Social Security, IRMAA, life-event windows. The L3 Ch3 L2 plan integrates multi-year tax-bracket projection across all income sources to surface high-leverage and low-leverage years.
• The deliverable: beneficiary classification memo + 10-year deadline + year-by-year plan + Reg BI documentation + beneficiary communication + CPA coordination note. Annual execution through L3 Ch3 L1 RMD calendar. Year-10 elevated supervisory sampling. Archive package per year captures the workflow lifecycle.