Faraid · Siblings
Brother's Share of Inheritance in Islam: Residuary (when not blocked)
A full brother inherits only when the deceased leaves no son, son's son, or father. When he does inherit he is a residuary heir, and a full brother and sister together split in a 2:1 ratio.
Real estates combine heirs — the calculator resolves the precise fractions for your family
Direct answer
How much does a brother inherit in Islam?
A full brother inherits only when the deceased leaves no son, son's son, or father. When he does inherit he is a residuary heir, and a full brother and sister together split in a 2:1 ratio.
A full brother inherits only when the deceased leaves no son, son's son, or father. When he does inherit he is a residuary heir, and a full brother and sister together split in a 2:1 ratio.
- Deceased left a son, son's son, or father → Blocked
- No descendants or father; brother alone or with brothers → Residue
- Full brother(s) with full sister(s) → 2:1 ratio
- Combined heirs trigger blocking, ʿawl, and radd — use the Faraid calculator
- U.S. intestacy does not produce these shares — an Islamic will is required
The Brother's Quranic Share by Situation
The basis is Surah An-Nisa 4:176. The share depends on which other heirs survive the deceased:
| Situation | Share | Note |
|---|---|---|
| Deceased left a son, son's son, or father | Blocked | A full brother inherits nothing in this case. |
| No descendants or father; brother alone or with brothers | Residue | Takes the entire remainder after fixed-share heirs. |
| Full brother(s) with full sister(s) | 2:1 ratio | Each brother takes twice each sister's share. |
When the Share Changes or Is Blocked
A full brother is blocked entirely by a son, a son's son (how low so ever), or the father. This is why siblings often inherit nothing when the deceased has children or a living father — a frequent surprise that an Islamic will helps families understand in advance.
Example: a man dies leaving a wife and one full brother (no children, no parents)
The wife takes 1/4 (no children). The full brother, as the residuary heir, takes the remaining 3/4. If the deceased also had a living son or father, the brother would be blocked and inherit nothing.
Want this resolved for your own family? Run it through the Faraid calculator — it applies blocking, ʿawl, and radd automatically.
Why U.S. Law Won't Deliver This Share
U.S. intestacy may give a sibling a share even when Faraid blocks them, or none when Faraid grants them the residue. Either way the outcome diverges from Islamic law unless the deceased left an Islamic will mapping their estate to the Quranic order.
An Islamic will is the only way to make sure the brother's Quranic share is honored instead of your state's default intestacy rules. ShariaWiz builds scholar-reviewed, state-specific Islamic wills and trusts — an Islamic will from $199, with a built-in Faraid engine.
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Shares of other heirs
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Reviewed by: HalalWallet Editorial Team
Last reviewed: 2026-07-01
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