Faraid · Siblings
Sister's Share of Inheritance in Islam: 1/2, 2/3, or 2:1 with brothers
A full sister inherits 1/2 (one, alone) or 2/3 (two or more, shared) when there is no son, son's son, father, or full brother. With a full brother she inherits as a residuary in a 2:1 ratio, and alongside daughters she becomes a residuary too.
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Direct answer
How much does a sister inherit in Islam?
A full sister inherits 1/2 (one, alone) or 2/3 (two or more, shared) when there is no son, son's son, father, or full brother. With a full brother she inherits as a residuary in a 2:1 ratio, and alongside daughters she becomes a residuary too.
A full sister inherits 1/2 (one, alone) or 2/3 (two or more, shared) when there is no son, son's son, father, or full brother. With a full brother she inherits as a residuary in a 2:1 ratio, and alongside daughters she becomes a residuary too.
- Deceased left a son, son's son, or father → Blocked
- One full sister, no brother/descendants/father → 1/2
- Two or more full sisters, same conditions → 2/3 (shared)
- Full sister(s) with full brother(s) → 2:1 residuary
- 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 Sister'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 sister inherits nothing in this case. |
| One full sister, no brother/descendants/father | 1/2 | A fixed Quranic half (4:176). |
| Two or more full sisters, same conditions | 2/3 (shared) | Divided equally. |
| Full sister(s) with full brother(s) | 2:1 residuary | Each brother takes twice each sister's share. |
When the Share Changes or Is Blocked
A full sister is blocked by a son, a son's son, or the father. When a daughter or son's daughter is present, a full sister becomes a residuary heir (ʿasaba maʿa al-ghair), inheriting the remainder after the daughters' shares.
Example: a woman dies leaving a husband and two full sisters (no children, no parents)
The husband takes 1/2 (no children). The two full sisters together take 2/3 as a fixed share. Because 1/2 + 2/3 exceeds the whole, the shares are proportionally reduced (ʿawl) so they fit — a classic case the Faraid calculator resolves automatically.
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
A sister's Quranic share — sometimes a half, sometimes a residue alongside daughters — has no equivalent in U.S. intestacy, which keys off spouse and children first. Honoring her exact entitlement requires an Islamic will.
An Islamic will is the only way to make sure the sister'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
Consider Consulting an Islamic Scholar
Major Islamic inheritance (Faraid) decisions often involve nuances that vary by scholarly opinion and personal circumstance. While HalalWallet provides educational comparisons and tools, we are not scholars or financial advisors. For personal guidance on Shariah compliance, consider speaking with a qualified Islamic scholar, your local imam, or a Shariah-certified financial advisor familiar with your situation.
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Reviewed by: HalalWallet Editorial Team
Last reviewed: 2026-06-01
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