Calculate the correct share for each heir according to the Quran and Sunnah
Islamic inheritance law (علم الفرائض — Ilm al-Faraid) is derived from the Quran (4:11-12, 4:176) and the Sunnah. Before distributing inheritance:
1. Pay funeral expenses
2. Pay outstanding debts
3. Execute the Wasiyyah (will/bequest) — up to 1/3 of the remaining estate, to non-heirs only
4. Distribute the rest among the heirs according to fixed Quranic shares
| Heir | Share | Condition |
|---|---|---|
| Husband | 1/4 or 1/2 | 1/4 if wife has children; 1/2 if no children |
| Wife | 1/8 or 1/4 | 1/8 if husband has children; 1/4 if no children |
| Father | 1/6 (+residue) | 1/6 if there are children; residue if no children |
| Mother | 1/6 or 1/3 | 1/6 if there are children or 2+ siblings; 1/3 if no children and <2 siblings |
| 1 Daughter | 1/2 | If no sons |
| 2+ Daughters | 2/3 (shared) | If no sons |
| Sons | Residue (Asabah) | Take the rest; if with daughters, male gets 2× female share |
| 1 Full Sister | 1/2 | If no children, no father, no brothers |
| 2+ Full Sisters | 2/3 (shared) | If no children, no father, no brothers |
Islamic inheritance follows fixed shares prescribed in Quran 4:11-12 and 4:176. Specific relatives receive fixed fractions (e.g., spouse, parents, daughters). Remaining wealth goes to residual heirs (asabah), typically sons or the father. The system ensures all close relatives are provided for.
A Wasiyyah allows you to bequeath up to 1/3 of your estate to non-heirs (friends, charity, etc.). It cannot be used to change the fixed shares of legal heirs. The Prophet ﷺ said: "Allah has given each person their rightful share, so there is no bequest for an heir." (Abu Dawud)
Yes. One daughter receives 1/2, two or more share 2/3. When sons are also present, the estate is divided with males receiving twice the female share. This accounts for the financial obligations Islam places on men (mahr, household expenses) which women are not required to bear.
This is called Awl (proportional reduction). When fixed shares add up to more than the estate, each share is proportionally reduced. For example, if shares total 9/6 instead of 6/6, each share is reduced proportionally so the total equals the estate.
Yes — Islamic inheritance law is the most complex area of fiqh. While this calculator handles common scenarios, edge cases involving grandchildren, half-siblings, multiple wives, or complex family structures require expert guidance. The Prophet ﷺ said: "Learn the laws of inheritance and teach them, for they are half of knowledge."
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