wealthschema / benchmark / items / fb-rmd-0034
ITEM PROVENANCE · RMD-MECHANICS

fb-rmd-0034

status: verifiedversion: v1corpus: 2026.9key: computedseverity: high
Scenario (all facts stipulated)
{
  "context": "Traditional IRA owner born in 1952; 2025 is her first distribution calendar year (she attains age 73 that year). She takes nothing during 2025 and defers her first required minimum distribution to the April 1, 2026 deadline. Her surviving spouse is not the sole designated beneficiary.",
  "first_year_prior_balance": 400000,
  "second_year_prior_balance": 415000,
  "age_first_distribution_year": 73,
  "note": "The December 31, 2024 balance is $400,000; the December 31, 2025 balance is $415,000. Both the deferred first-year RMD and the 2026 RMD must be distributed during calendar year 2026."
}
Question posed to the model under test

Compute the total of the required minimum distributions this owner must take during calendar year 2026, in dollars. Respond with the numeric amount only.

Answer key

31368.85 USD (tolerance ±1)

Produced by compute rmd.deferred-first-year-total in src/lib/fiduciarybench/keys/index.ts — the stored value is machine-checked against the compute on every build; it cannot drift from its own code.

Rubric

The deferred first-year RMD uses the Dec-31-2024 balance and the age-73 denominator; the 2026 RMD uses the Dec-31-2025 balance and the age-74 denominator; both fall due in 2026 and are summed, within $1.

Cited primary sources (quote-gated)
The distribution required for the employee's first distribution calendar year (as described in paragraph (a)(2)(ii) of this section) may be made on or before April 1 of the following calendar year. The required minimum distribution for any other distribution calendar year (including the required minimum distribution for the distribution calendar year in which the employee's required beginning date occurs or the first distribution calendar year for the designated beneficiary) must be made on or before the end of that distribution calendar year.
is equal to the quotient obtained by dividing the account balance (determined under paragraph (b) of this section) by the applicable denominator (determined under paragraph (c) or (d) of this section, whichever applies)
26 CFR § 1.401(a)(9)-9 · (c) Uniform Lifetime Table
the Uniform Lifetime Table, sets forth the applicable denominator that applies for lifetime distributions to an employee in situations in which the employee's surviving spouse is not the sole designated beneficiary

Each quoted passage is exact-matched, after typographic normalization, against the corpus text fetched from the issuing authority (hashes in the corpus manifest). An item whose quote stops matching fails the build.

Verification record
generator: claude-fable (session 2026-09-01)disagreements: 0controls: fb-2026-09-f (4/4 caught)adjudicated by: — (none required or pending)
gpt-5.6-solagrees the key is correctquote matched
Age of employee | Applicable denominator 72 | 27.4 73 | 26.5 74 | 25.5cfr-1-401a9-9

The deferred 2025 RMD is $400,000 ÷ 26.5 = $15,094.3396. The owner is age 74 in 2026, so the 2026 RMD is $415,000 ÷ 25.5 = $16,274.5098. Their sum is $31,368.8494, which rounds to $31,368.85. The key is correct.

grok-4.6agrees the key is correctquote matched
the applicable denominator for required minimum distributions for each distribution calendar year beginning with the employee's first distribution calendar year (as described in paragraph (a)(2)(ii) of this section) is determined using the Uniform Lifetime Table in § 1.401(a)(9)-9(c) for the employee's age as of the employee's birthday in the relevant distribution calendar yearcfr-1-401a9-5

First-year (2025) RMD is 400000/26.5 = 15094.3396 using age-73 Uniform Lifetime denominator; 2026 RMD is 415000/25.5 = 16274.5098 using age-74 denominator and the given 12/31/2025 balance (no unpaid-RMD reduction is required by paragraph (b)). Sum is 31368.85. Paragraph (a)(3) places both amounts in calendar 2026. Spouse is not sole beneficiary, so Uniform Lifetime Table applies.

Version history & errata

v1; no errata. Demonstrate a key error and the correction is published here, credited — challenge policy.