Muslim inheritance in India: how Sharia decides shares (and what a will can and cannot do)

Muslim succession in India is governed by Muslim Personal Law (Shariat) Application Act 1937, which means the Quranic rules of inheritance apply, not the Indian Succession Act 1925 or the Hindu Succession Act 1956. The mechanics are unlike anything in the Hindu or Christian frameworks: shares are mathematically fixed, testamentary freedom is severely limited, and the heir list is structured by relationships defined fourteen centuries ago. If you are a Muslim writing a will in India, the rules below are not optional guidance, they are what will be enforced if there's a challenge.

Rule 1: you can only bequeath one-third of your net estate. This is the foundational restriction. After funeral expenses and debts (including unpaid dower, mehr) are paid, what remains is your net estate. You can write a will (wasiyat) covering up to one-third of it; the other two-thirds goes automatically by the fixed Quranic shares. Under Hanafi law, which most Indian Sunni Muslims follow, a bequest above one-third, or any bequest to someone who is already an heir, needs the consent of the other heirs, given after your death. Under Shia law, a bequest to an heir within one-third is valid without consent, and consent is needed only for the part above one-third.

Rule 2: the heir list comes from the Quran, not from your preferences. The Sunni framework (Hanafi being the dominant school in India) divides heirs into three classes. Sharers receive specified fractions: husband (1/4 if children, 1/2 if no children), wife (1/8 if children, 1/4 if no children), father, mother, daughter, sister, etc. Residuaries take what's left after the sharers' fractions are calculated; sons are the primary residuaries. Distant kindred inherit only if no sharers or residuaries exist.

Rule 3: the son-daughter 2:1 ratio. When sons and daughters inherit together, each son takes twice the share of each daughter. This is a Quranic rule, not a cultural preference; it's not subject to interpretation under Hanafi law. For example: a man dies leaving a wife, one son, and two daughters. The wife takes 1/8. The remaining 7/8 is divided 2:1:1, the son takes 7/16, each daughter takes 7/32. If the man's will tried to give the daughters equal shares to the son, the will is invalid for the part touching the heirs' shares.

Rule 4: spouses' shares depend on whether there are children. Wife with children: 1/8. Wife without children: 1/4. Husband with children: 1/4. Husband without children: 1/2. If there are multiple wives, they collectively take the wife's share, divided equally among them.

Rule 5: there is no concept of joint family / coparcenary. Unlike Hindu law's HUF/coparcenary system, Muslim law treats every individual as the sole owner of their property. There is no 'ancestral property' that descends through generations as a unit. Each death triggers a fresh calculation of shares among the heirs of the deceased.

Rule 6: there is no representation. If your son dies before you and you leave another son or daughter, his children do not step into his share. This strikes many modern families as unfair, because orphaned grandchildren can be cut out, and it is a common reason Muslim estates are contested. Indian law has no compulsory bequest for such grandchildren, unlike some other countries. The way to provide for them is your own one-third wasiyat: grandchildren who are not heirs can receive from it without anyone's consent.

Sunni vs Shia, in practice. Most Indian Muslims follow the Hanafi (Sunni) school. Shia inheritance (the Ithna Ashari or Ja'fari school) groups heirs differently, has different rules on residue, and treats bequests to heirs differently. If you are Shia, do not use a Hanafi will template; consult a Shia personal law specialist. One more exception: in Uttarakhand, the Uniform Civil Code in force since January 2025 replaces personal-law succession for those it covers.

What a will (wasiyat) can do for you. Within the one-third limit, you can bequeath to charities (waqf), to friends, to caregivers, to non-Muslim spouses (a Muslim cannot inherit from a non-Muslim spouse under classical rules; a wasiyat can address this for the one-third). You can also direct how the one-third should be allocated among non-heirs you'd like to benefit. You CAN use the wasiyat to suggest priorities, for example, that a particular property should be sold and proceeds divided, but you CANNOT use it to alter the shares of the heirs themselves.

Why a generic will template is dangerous. A template designed for the Hindu Succession Act will let you write 'I leave my entire estate to my wife.' If you are Muslim, that works at most for one-third, and under Hanafi law even that third fails without the other heirs' consent, because your wife is already an heir. The rest passes by the fixed shares regardless, and your family ends up litigating to undo what you thought you had written. That is why Sort My Legacy does not make Muslim Personal Law will drafts from a generic template; ours aren't ready yet. For now the safe path is a will drafted by a qualified Muslim personal law lawyer, paired with the non-legal parts of Sort My Legacy (inventory, family briefing, digital legacy, medical directives, nominee tracking), which work the same whatever your personal law.

Practical checklist. Update nominees on every account; nominees are heirs' custodians regardless of personal law, and Muslim heirs benefit from registered nominees the same way Hindu heirs do. Document mehr clearly, it's a debt of the husband's estate paid before distribution. Keep waqf intentions documented; if you want any one-third bequest to go to charity, name the institution, registration number, and the exact share. Tell your family, by name, who the heirs will be and what the rough shares are; the most painful family fights happen when grown children discover the Quranic rules for the first time in the lawyer's office.

General information, not legal, tax or financial advice. Laws and rules change, so check with a qualified lawyer or CA before you act.