Calculation catalog › Accounts and growth
Projection summary ending after tax estate
Ending net worth after estimated income tax on inherited pre-tax accounts.
Field: endingAfterTaxEstate Unit: US dollars Basis: nominal dollars Computed by: Engine Status: Complete chain
Appears in: results-headline (ResultsPage / ReportPage KPI "After-tax estate"); report (headline-results block endingAfterTaxEstate); scenarios-page (Headline and estate table "Ending after-tax estate" / "After-tax estate to heirs"); compare-page (After-tax estate row levels, in today's (start-year) dollars when the two plans end in different years (PlanHeadlineComparison)); optimize-page (Objective the tournament ranks on; claim-age exact estates); solver-page (Evidence "Ending after-tax estate" and SWR rule rows); ss-page (Claim-age sweep, refinement, bridge comparison and survivor tables); relocation-page (Ending after-tax estate column (deflated for display)); monte-carlo-page (Historical stress windows "Estate" column); insights (spending-headroom card ending estate (deflated)); mcp (run_projection.summary.endingAfterTaxEstate); mcp (batch_evaluate.results[].objective); mcp (compare_scenarios.a.endingAfterTaxEstate); mcp (compare_scenarios.b.endingAfterTaxEstate); mcp (compare_scenarios.headline.endingAfterTaxEstate.baseline, in today's (start-year) dollars when the two plans end in different years (headline.moneyBasis)); mcp (compare_scenarios.headline.endingAfterTaxEstate.proposal, in today's (start-year) dollars when the two plans end in different years (headline.moneyBasis))
Calculation records
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Projection summary ending after tax estate Composition record, justified by derivation
Purpose: Net the horizon estate of charity carve-outs and assumed heir income tax.
Statement: projection/compare.ts#summarizeProjection computes nominal ending after-tax estate as horizon net worth minus the amount passing to charity and minus the total assumed heir income tax on inherited pre-tax balances: endingAfterTaxEstate = endingNetWorth - endingEstateToCharity - endingEstateHeirTax.
Formula:
endingAfterTaxEstate = endingNetWorth - endingEstateToCharity - endingEstateHeirTax-
endingNetWorth: Horizon net worth (unit: nominal USD) (domain: finite) -
endingEstateToCharity: Amount passing to charity, untaxed (unit: nominal USD) (domain: nonnegative) -
endingEstateHeirTax: Assumed heir income tax on inherited pre-tax balances (unit: nominal USD) (domain: nonnegative)
Timing: projection horizon
Rounding: none stated
Limits:
- Charity carve-outs pass untaxed rather than remaining in the heirs' estate, so they are subtracted here even though they are also reported separately in endingEstateToCharity; with no charity destination the identity collapses to net worth minus heir tax. Ignoring charity, adding heir tax instead of subtracting it, or subtracting charity a second time through the heir tax each name a different quantity. The figure is assumed terminal exposure at the horizon, not a death-year return.
Provenance: derived by
codex, implemented byclaude.Independent review:
cursorGates (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: projection-summary-ending-after-tax-estate.md Mutation receipt: projection-summary-ending-after-tax-estate.mutation.md
Evidence tests: compareSummary.evidence.test.ts
Implemented in: compare.ts
Is the number of: projection-summary-ending-after-tax-estate
Feeds: swr-rule-result-ending-after-tax-estate, scenario-comparison-cell, insight-spending-headroom-rough-annual
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Records that feed this number
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Projection summary ending net worth Composition record, justified by derivation
Purpose: Republish net worth at the projection horizon.
Statement: projection/compare.ts#summarizeProjection republishes ProjectionResult.endingNetWorth, the nominal-dollar net worth at the projection horizon, without stated rounding.
Formula:
summary.endingNetWorth = result.endingNetWorth-
result.endingNetWorth: Whole-run net-worth endpoint (unit: nominal USD) (domain: finite)
Timing: projection horizon
Rounding: none stated
Limits:
- The result type already defines annual net worth as investable plus property, insurance cash value and ladder value, less debt and non-recourse-capped HECM loans, so the summary must not rebuild that ledger identity; substituting ending investable, or adding it to the composed net worth, double-counts assets.
Provenance: derived by
codex, implemented byclaude.Independent review:
cursorGates (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: projection-summary-ending-net-worth.md Mutation receipt: projection-summary-ending-net-worth.mutation.md
Evidence tests: compareSummary.evidence.test.ts
Implemented in: compare.ts
Is the number of: projection-summary-ending-net-worth
Feeds: projection-summary-ending-after-tax-estate, scenario-comparison-cell
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Projection summary estate heir tax Composition record, justified by derivation
Purpose: Total the per-account heir income tax already resolved in the estate breakdown.
Statement: projection/compare.ts#summarizeProjection publishes ending estate heir tax as the sum of every EstateAccountBreakdown.heirTax amount after each account's destination, charity carve-out, taxable pre-tax base and heir rate have been applied, in nominal horizon dollars with no stated rounding.
Formula:
endingEstateHeirTax = sum over accounts a of estateBreakdown[a].heirTax-
estateBreakdown[a].heirTax: Per-account resolved heir income tax (unit: nominal USD) (domain: nonnegative)
Timing: projection horizon, once per estate breakdown row
Rounding: none stated
Limits:
- It sums the already resolved per-account tax rather than recomputing taxable bases or taxing gross balances a second time, and it must not subtract the charity amount again from the resolved total. The charity fraction reduces the taxable pre-tax base before the heir rate applies (240,000 x 0.9 x 0.22 = 47,520.00 on the worksheet's traditional row), and only a charity destination carries a nonzero fraction. The first derivation taxed the whole base (52,800.00) and was re-derived on that rule; the evidence pins both cases, 56,320.00 with the 10% charity bequest and 61,600.00 with no charity destination, and is green.
Provenance: derived by
codex, implemented byclaude.Independent review:
cursorGates (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: projection-summary-estate-heir-tax.md Mutation receipt: projection-summary-estate-heir-tax.mutation.md
Evidence tests: compareSummary.evidence.test.ts
Implemented in: compare.ts
Is the number of: estate-heir-income-tax
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Engine source: engine/src/projection/compare.ts
(ProjectionSummary.endingAfterTaxEstate)
The evidence links on this page (each record's worksheet, mutation receipt, evidence tests
and implementation, and the source links) are pinned to engine commit
2624dbdba9fd, committed 2026-10-11.
The live calculation index and
output-family census links point at the repository's main
branch, so you can check this snapshot against them.