How to Use This Calculator
Enter Estate Value
Enter the total gross estate — the sum of all assets (cash, property, investments) left by the deceased. Enter in any currency; shares are calculated proportionally.
Deduct Debts
Islamic law requires all debts (loans, bills, funeral costs) to be paid before any distribution. Enter the total outstanding debts; the calculator subtracts these automatically.
Bequest (Wasiyyah)
A Muslim may leave a voluntary bequest, but only up to one-third (1/3) of the net estate after debts. Any amount over 1/3 is automatically capped. Leave as 0 if there is no bequest.
Specify Surviving Heirs
Select each surviving heir. Father and Mother are separate fields. Siblings only inherit if there are no children and no father. A husband means the deceased was a woman; wives mean the deceased was a man.
Read the Results
Each heir's share is shown as a monetary amount and percentage bar. A warning appears if 'Aul (proportional reduction) was applied because fixed shares exceeded 100%.
Download the PDF Certificate
Click "Download PDF Certificate" to open a printable report. Use your browser's Print function and choose "Save as PDF" to save it.
Key Concepts
'Aul — Proportional Reduction
If the sum of all fixed shares exceeds the estate, each share is reduced proportionally. This is called 'Aul (increase of shares). The calculator applies this automatically.
Ta'seeb — Residuary Shares
After fixed shares are distributed, any remainder goes to residuary heirs (asaba). Sons are the primary residuaries; a son always receives double the share of a daughter.
Hajb — Blocking
Closer heirs block more distant ones. A father blocks paternal uncles; sons block brothers. This calculator handles all standard blocking rules for the heirs listed above.
Fixed Share Reference (Fard)
Qur'anic prescribed shares (Al-Nisa 4:11-12, 4:176). Actual amounts depend on which other heirs are present.
| Heir | Condition | Share | Type |
|---|---|---|---|
| Husband | No children | 1/2 | Fixed |
| Husband | With children | 1/4 | Fixed |
| Wife / Wives | No children | 1/4 (shared) | Fixed |
| Wife / Wives | With children | 1/8 (shared) | Fixed |
| Father | With children | 1/6 | Fixed |
| Father | No children | Full residue | Residuary |
| Mother | With children or 2+ siblings | 1/6 | Fixed |
| Mother | No children, fewer than 2 siblings | 1/3 of remainder | Fixed |
| 1 Daughter | No sons | 1/2 | Fixed |
| 2+ Daughters | No sons | 2/3 (shared) | Fixed |
| Sons + Daughters | Together | Residue; son = 2x daughter | Residuary |
| Sons only | No daughters | Full residue equally | Residuary |
| 1 Full Sibling | No children, no father | 1/2 | Fixed |
| 2+ Full Siblings | No children, no father | 2/3 (shared) | Fixed |