12.5 Distribution Planning: RMDs, Beneficiary Designations, Trusts as Beneficiary & Retirement Forecasting

12.5 Distribution Planning: RMDs, Beneficiary Designations, Trusts as Beneficiary & Retirement Forecasting

Section 12.3 covered how much to withdraw from a portfolio. This section covers what the Code requires to come out, who receives what remains, and how an advisor demonstrates that the whole plan holds together.

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1. Required Minimum Distributions

The Required Beginning Date

The first RMD may be deferred to April 1 of the following year, but doing so stacks two distributions into one tax year — usually a mistake for a client near an IRMAA cliff or a bracket edge.

Calculation and Aggregation

Divide the December 31 prior-year balance by the Uniform Lifetime Table factor. A client whose sole beneficiary is a spouse more than 10 years younger uses the more favorable Joint and Last Survivor Table instead.

Aggregation rules are a reliable exam item:

• IRAs (traditional, SEP, SIMPLE) — compute separately, then take the total from any one or more of them.
• 403(b)s — aggregate among themselves, but never with IRAs.
• 401(k)s and other qualified plans — no aggregation at all. Each plan must distribute its own RMD.

Accounts With No Lifetime RMD

• Roth IRAs — never during the owner's life
• Designated Roth accounts in 401(k) and 403(b) plans — SECURE 2.0 eliminated lifetime RMDs beginning in 2024
• Amounts allocated to a QLAC (up to $210,000 in 2026) are excluded from the RMD base until payments begin

The Still-Working Exception

A participant who is still employed, is not a 5% owner, and whose plan permits it may defer RMDs from that employer's plan until retirement. It never applies to IRAs, and it never applies to a prior employer's plan.

Penalties

A missed RMD triggers a 25% excise tax on the shortfall, reduced to 10% if corrected within the statutory correction window. Full waiver may be requested on Form 5329 for reasonable error with prompt correction.

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2. Beneficiary Classification Drives Everything

The Three Classes

The Five Eligible Designated Beneficiaries

1. Surviving spouse — may roll over to their own IRA, remain a beneficiary, or under SECURE 2.0 elect to be treated as the deceased spouse for RMD purposes
2. Minor child of the account owner — stretch until age 21, then the 10-year rule begins. A grandchild does not qualify, and neither does a minor who is not the owner's own child.
3. Disabled beneficiary under the §72(m)(7) standard
4. Chronically ill beneficiary
5. A beneficiary not more than 10 years younger than the owner — typically a sibling or partner

The 10-Year Rule and the Annual-Distribution Requirement

The final regulations resolved the question that confused practitioners for four years:

• If the owner died on or after the required beginning date, the beneficiary must take annual distributions in years 1 through 9 based on their own life expectancy, and empty the account by December 31 of year 10.
• If the owner died before the required beginning date, no annual distributions are required — the beneficiary may wait and take everything in year 10.

The planning consequence. For an heir in peak earning years, a lump sum in year 10 can push a large slice of income into the 37% bracket. Modeling withdrawals ratably across the ten years, or concentrating them in low-income years such as a sabbatical or the year of retirement, is often worth six figures. This is one of the highest-value pieces of advice available on an inherited account.

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3. Trusts as Beneficiary

Naming a trust preserves control — spendthrift protection, remarriage protection, special needs preservation — but a trust is not a person, so the Code applies a look-through test.

See-Through Requirements

A trust is disregarded and the account faces the 5-year rule unless all four are met:

1. Valid under state law
2. Irrevocable at the owner's death
3. Beneficiaries are identifiable from the instrument
4. Documentation is furnished to the plan administrator or custodian by October 31 of the year following death

Conduit vs. Accumulation

The trade-off is stark and directly testable. A conduit trust for a beneficiary with creditor exposure now defeats its own purpose: because the 10-year rule forces the whole account out within a decade, a conduit trust must pass the entire balance to the beneficiary within that period, exposing it to exactly the risks the trust was designed to prevent. An accumulation trust preserves protection but pays the compressed rates on anything retained.

A third option for a charitably inclined family: name a charitable remainder unitrust as beneficiary. The CRT is tax-exempt, so it can receive the full IRA balance without immediate tax, pay the individual beneficiary a lifetime income stream, and leave the remainder to charity — a partial functional replacement for the lost stretch.

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4. Qualified Charitable Distributions

A client aged 70½ or older may transfer up to $111,000 (2026, indexed) per year directly from an IRA to a qualifying public charity.

• Satisfies the RMD — dollar for dollar
• Excluded from AGI entirely, which is strictly better than an offsetting deduction because AGI drives IRMAA tiers (§12.4), Social Security taxation, and the 0.5% charitable floor (§8.1)
• Must go directly from custodian to charity — a check to the client first destroys the treatment
• Not available to DAFs, private foundations, or supporting organizations
• Available from IRAs only, not from 401(k) plans, and not from an active SEP or SIMPLE
• A one-time election permits up to an indexed amount to fund a charitable gift annuity or CRT
• Note the anti-abuse rule: deductible IRA contributions made after age 70½ reduce the excludable QCD amount dollar for dollar

For a client already giving to charity and already subject to RMDs, the QCD is close to a free optimization — the same gift, made from a better account, with a better AGI result.

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5. Analytical Forecasting Techniques

The blueprint asks about "analytical forecasting techniques used in projecting retirement outcomes." Each has a distinct failure mode.

How to interpret a probability of success. A "92% success" reading is not a forecast; it is a statement about the model. Two errors dominate practice: treating the number as precise, and treating failure as binary. Real households adjust — they cut discretionary spending, delay a purchase, work another year. A dynamic-spending Monte Carlo that models those adjustments, as the Guyton-Klinger guardrails in §12.3 do, reports a materially different and more honest picture than a fixed-spending model.

For high-net-worth clients specifically, portfolio depletion is usually not the binding question — a client spending 1.5% of assets is not going to run out. The forecast should instead target the questions that actually bind: projected estate tax liability, lifetime tax cost under alternative Roth conversion paths, IRMAA exposure across the decumulation window, and the sustainable level of family gifting.