Core share and residuary cases
Wife, son and daughter
Wife 1/8. The remaining 7/8 is divided two to one: son 7/12, daughter 7/24.
Husband, son and daughter
Husband 1/4. The residue gives the son 1/2 and the daughter 1/4.
Two daughters and father
Daughters collectively receive 2/3. Father receives 1/6 plus the 1/6 residue, totalling 1/3.
Father blocks full brother
The father receives the residue. The full brother is excluded by the nearer ascendant.
Daughter, son's daughter and full sister
Daughter 1/2, son's daughter 1/6 to complete two thirds, full sister receives the 1/3 residue.
Son's daughter only
Her prescribed starting share is 1/2. With no residuary, the balance returns to her by radd, making her final share one whole estate.
Adjustments and special cases
Umariyyah with wife
Wife 1/4. Mother receives one third of the remainder, equal to 1/4. Father receives 1/2.
Umariyyah with husband
Husband 1/2. Mother receives one third of the remainder, equal to 1/6. Father receives 1/3.
Awl: husband and two full sisters
Starting shares total 7/6. Awl adjusts the husband to 3/7 and the sisters collectively to 4/7.
Radd: wife and daughter
Wife remains at 1/8. The daughter receives her prescribed share plus the return, totalling 7/8.
Akdariyyah
Husband 1/3, mother 2/9, paternal grandfather 8/27 and full sister 4/27.
Grandfather and full brother
Sharing as one brother is most favourable here. Each receives 1/2.
Safety and validation cases
Spouse only
The spouse receives the prescribed share. The remaining balance is clearly labelled for review rather than silently assigned.
Bequest over one third
The estate stage caps the estimate at one third after funeral costs and debts and displays a warning.
Blocked relatives still explained
An entered relative who is excluded remains visible in the explanation with the precise reason for exclusion.
How this differs from a superficial test
A calculator can produce a percentage that looks plausible while misidentifying an heir, applying the wrong blocking rule or explaining the result incorrectly. Each check therefore verifies the exact fraction assigned to every inheriting class and confirms that the final total is one.
The older ILM Summit calculator supplied a valuable bank of public examples. This rebuilt site does not simply copy its wording or treat every historical result as beyond review. It separates ordinary agreed cases from configurations affected by recognised juristic differences, particularly grandfather with siblings, Mushtarakah, distant kindred and spouse-only radd.
Historical regression comparison
Against the supported, machine-readable ILM Summit examples, 128 of 130 comparable cases produce the same category shares. The two deliberate differences are disclosed: one historical case gives maternal siblings a share despite the presence of daughters, although descendants exclude maternal siblings; the other is a mixed grandfather, full-sister and paternal-sibling configuration involving detailed mu’addah rules, which this site flags for qualified review instead of presenting a simplified answer as universally settled. Four further records are outside the current comparable set because they are empty, marked as errors, or use a more distant cousin-descendant class not offered by the wizard.
Known review boundaries
The current release calculates the common heir classes shown in the wizard and implements awl, radd, Umariyyatain, Akdariyyah and the principal grandfather comparison. It raises a review warning for Mushtarakah, mixed full and paternal siblings with a grandfather, spouse-only balances, distant kindred, and any bequest benefiting an heir.
This transparency is intentional. A result should not claim certainty when the answer depends on a madhhab, local statute or family fact the form cannot establish.