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Jewish Inheritance Calculator (Halacha)

Explore the traditional biblical and halachic order of asset succession, modeling primogeniture double-shares and genealogical lines.

InputsChange a value to recalculate instantly
ResultUpdates as you type
Net Paternal Estate$110,000
Halachic Succession NodeLevel 1: Direct Male Descendants (Sons)
First-Born (Bechor) Double Share$73,333.33 (66.7%)
Each Regular Son Share$36,666.67 (33.3%)
Daughter Portion (Yerushah)$0 (Covered by Ketubah/Dowry)
Father / Collateral Portion$0 (Preempted by direct descendants)
FORMULA & STEPSJewish Inheritance Calculator (Halacha) — Mathematical Derivation & Steps
2 StepsSequential Calculation Breakdown
1
Determine Succession Hierarchy
Identify the highest-ranking surviving genealogical tier under halachic law.
2
Calculate Primogeniture Allocation
First-born biological son receives double portions of existing paternal estate.
λ DooMathWork with this calculation
Local · deterministic · optional
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Quick mathNatural-language-style shortcuts for deterministic arithmetic.
Calculator guide

How to use the Jewish Inheritance Calculator (Halacha)

Explore the traditional biblical and halachic order of asset succession, modeling primogeniture double-shares and genealogical lines.

01Set inputsChoose values, units and assumptions.
02Apply the modelSuccession Line = Sons (with Bechor 2x share) -> Daughters -> Father -> Brothers -> Uncles -> Closest Kinsmen.
03Read the resultCheck the output against the assumptions before using it.
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What this calculator does

Implements the biblical succession hierarchy (Numbers 27:8-11). If direct male lines (sons and their descendants) exist, they inherit the entire residue. The oldest biological first-born son (Bechor) receives a mathematical double-share (2x) of the direct paternal estate. If no sons exist, the line moves down to daughters, then up to the father's ancestral line.

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Formula & method

Succession Line = Sons (with Bechor 2x share) -> Daughters -> Father -> Brothers -> Uncles -> Closest Kinsmen.

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Assumptions & notes

  • Based on the classical laws of Yerushah found in the Torah and Talmud.
  • A first-born son receives a double portion only from direct, existing paternal property, not prospective assets.
  • The secular default succession laws (like modern Israeli Succession Law 5725) often balance things differently; this tool tracks historical Halachic math.
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