Inherited distribution required annual

Required inherited-account distribution dollars due for the account and year.

Field: inheritedRequiredAmount Unit: US dollars Basis: nominal dollars Computed by: Engine Status: Complete chain

Appears in: csv (inheritedRequiredAmount); results-table (Inherited schedules Required column); report (inherited-schedules block requiredAmount)

Calculation records

• Annual inherited-account required amount Formula record, justified by derivation

  Purpose: The legal-year requirement on an inherited account, before any comparison to the live balance.

  Statement: strategies/inheritedIra.ts#inheritedRequirementForYear publishes the annual inherited-account requirement from the prior-December-31 balance. A beneficiary fixed Single Life Table divisor is read once at the beneficiary's age in the year after death and declines by exactly one per later calendar year; for a traditional account inherited on or after the owner's required beginning date under the eligible-designated-beneficiary life-expectancy regime, the greater of the beneficiary's fixed divisor and the owner's fixed divisor governs, so the longer life expectancy produces the smaller required amount; a no-annual-requirement window publishes 0; and the final deadline year requires the full prior-year-end balance, reconciled to the live balance at execution. The 2026 tax parameters supply 14.8 at age 75, so the next fixed divisor is 13.8, not the age-76 entry 14.1; an owner aged 86 in the death year starts from the entry 7.6 and so stands at 6.6 in the first year after the death year. Units: nominal USD per year. Rounding: none.

  Formula: annual: required = B / d, d read once at the first distribution year and reduced by one per later year; none: 0; final sweep: required = B

  • B: Prior-December-31 balance (unit: usd) (domain: nonnegative)
  • d: Fixed Single Life divisor, minus elapsed years (unit: years) (domain: positive; <= 1 becomes a sweep)

  Timing: once per inherited account per calendar year

  Rounding: none

  Limits:

  • All six of the worksheet's cases asserted at the exported calculator with the stated year, prior-year-end balance and divisors verbatim: the 2027 first-year beneficiary arm, the 2028 fixed-minus-one continuation, both post-RBD rows in the first year after the death year, the pre-RBD ten-year no-annual window, and the 2036 final sweep. Plan assumptions beyond the worksheet's inputs: the annual arm and both post-RBD rows are an eligible designated beneficiary (disabled) born so the stated age falls in the stated year, the post-RBD rows add an owner born in 1940 (age 86 in the 2026 death year) who had started RMDs and whose death-year RMD was satisfied, the no-annual and sweep cases are a non-eligible designated beneficiary whose owner died in 2026 before the required beginning date, and every case is a sole designated-individual beneficiary of a traditional IRA with asserted provenance
  • The first derivation stated the post-RBD rule as the greater required amount, max(B / beneficiary divisor, B / owner divisor), and used an owner-fixed divisor of exactly 10.8 that no 2026 Single Life Table entry can produce; that derivation was corrected on 2026-09-18. The worksheet now states the comparison production holds: the greater DIVISOR (`if (ownDiv > divisor) divisor = ownDiv`), which is the longer life expectancy and so the smaller amount, per Treas. Reg. 1.401(a)(9)-5(d)(1)(ii). The worksheet reaches the owner arm from the age-86 death-year entry 7.6, giving 6.6 in the first year after the death year. Both winning arms are now constructed and asserted: a beneficiary aged 75 keeps 14.8 and publishes 10,000, and a beneficiary aged 90 at 5.7 loses to the owner's 6.6 and publishes 22,424.242424. No production-versus-worksheet discrepancy remains

  Provenance: derived by codex, implemented by claude.

  Independent review: cursor

  Gates (6 of 6 pass): fixture registers a test: pass; pins resolve: pass; families exist: pass; worksheet exists: pass; mutation receipt exists: pass; provenance independent: pass

  Worksheet: inherited-distribution-required-annual.md Mutation receipt: inherited-distribution-required-annual.mutation.md

  Evidence tests: inheritedIra.evidence.test.ts

  Implemented in: inheritedIra.ts

  Is the number of: inherited-distribution-required-annual

  Feeds: inherited-distribution-required-executed-annual, tax-penalties-annual

Records that feed this number

• Inherited-account final emptying year Data record, justified by derivation

  Purpose: The fixed calendar year an inherited account must be emptied by, when its regime has one.

  Statement: strategies/inheritedIra.ts#classifyInheritedRegime publishes #InheritedRegimeClassification.finalDeadlineYear as the fixed final emptying year when the regime has one: ownerDeathYear + 10 for a non-eligible designated beneficiary and for a spouse's ten-year election, and beneficiaryBirthYear + 21 + 10 for an eligible designated minor child, whose majority year is separately published as minorMajorityYear. A single-life regime has no fixed deadline and the field is absent. Units: calendar year, or absent. Rounding: none; integer year addition.

  Formula: ten-year rows: deathYear + 10; minor child: birthYear + 21 + 10; life-expectancy rows: absent

  • deathYear: Calendar year the original owner died (unit: year) (domain: >= 2020)
  • birthYear: Minor-child beneficiary birth year (unit: year) (domain: majority year >= death year)

  Timing: once per inherited account, at classification

  Rounding: none

  Limits:

  • All four regime cases asserted at the exported classifier with the worksheet's death year, beneficiary birth year and conventions verbatim. Plan assumptions beyond the worksheet's inputs: every case is a traditional IRA with a sole designated-individual beneficiary and asserted provenance, and the owner is asserted to have died before the required beginning date, which is what places the non-eligible case on the ten-year row rather than the ten-year-with-annual-RMDs row; both rows publish the same deathYear + 10 deadline
  • The single-life case is the not-more-than-10-years-younger eligible designated beneficiary, whose classification carries no finalDeadlineYear at all rather than a null one

  Provenance: derived by codex, implemented by claude.

  Independent review: cursor

  Gates (6 of 6 pass): fixture registers a test: pass; pins resolve: pass; families exist: pass; worksheet exists: pass; mutation receipt exists: pass; provenance independent: pass

  Worksheet: inherited-account-final-deadline-year.md Mutation receipt: inherited-account-final-deadline-year.mutation.md

  Evidence tests: inheritedIra.evidence.test.ts

  Implemented in: inheritedIra.ts

  Is the number of: inherited-account-final-deadline-year

  Feeds: inherited-distribution-required-annual

Engine source: engine/src/projection/internal/types/result.ts (YearResult.inheritedAccounts[].requiredAmount)