Islamic Wills in Nigeria (2026): Wasiyyah, State Law and Why Where You Live Matters

Most Nigerians die intestate, and for Muslims the consequences compound: assets freeze, family disputes fill the gap, and the estate may end up distributed under rules the deceased never intended. Islamic law solved this fourteen centuries ago with a precise system: fixed inheritance shares (faraid) for heirs, plus a wasiyyah, a bequest of up to one third for those the fixed shares do not reach. The complication in Nigeria is that a Muslim's will also lives under state legislation, and different states, and different courts, have answered the conflict differently. This guide explains the structure and the law honestly. It is general information, not legal advice; estate documents need a lawyer licensed in your state.

How Islamic succession actually works

Islamic law does not let you distribute your whole estate by choice, because the Quran already distributed most of it. After funeral costs and debts, including unpaid zakat and any mahr owed, fixed shares go to defined heirs: spouses, parents, children, and others in defined circumstances, with shares specified in Surah An-Nisa. The wasiyyah operates in the remaining space, and its rules are tight: it may cover at most one third of the net estate, and under the majority position it may not benefit someone who already takes a fixed share, per the hadith that there is no bequest to an heir, unless the other heirs consent after death. What the wasiyyah is for: relatives outside the faraid list (an adopted child, a needy grandchild whose parent predeceased, non-Muslim relatives), charities, waqf endowments, and long-term causes.

The Nigerian legal terrain: two lines of authority

Here is the part most guides skip. In Adesubokan v Yunusa (1971), Nigeria's Supreme Court upheld a will made by a Muslim under the Wills Act 1837, holding that the Act's testamentary freedom prevailed over Maliki distribution rules; a Muslim in a Wills Act state could, as a matter of Nigerian law, will his property as he pleased. Decades later the pendulum swung: in Ajibaiye v Ajibaiye (2007), the Court of Appeal applied the Kwara State Wills Law, which contains a proviso subjecting Muslims to Islamic law, and held the deceased's estate must follow Islamic inheritance, limiting bequests to the one third. The difference between the cases is the statute: states that enacted Wills Laws with an Islamic-law proviso (several northern and north-central states) bind Muslim testators to faraid; states still under the Wills Act 1837 or with Wills Laws lacking such a proviso (Lagos among them) leave testamentary freedom formally intact. Northern states also maintain Sharia courts with jurisdiction over Muslim personal law, including succession.

The practical meaning: a Muslim in Kano or Ilorin is generally held to Islamic distribution by the local statute and courts. A Muslim in Lagos is not forced to it by law, and must therefore choose it, by writing a will that implements faraid and confines bequests to the third. Relying on where you live is fragile anyway; assets, marriages and relocations cross state lines. The robust approach is the same everywhere: write the Islamic structure into a statutorily valid will.

Building a valid Islamic will in Nigeria

• Meet the statutory formalities of your state: written, signed by you, witnessed by two witnesses present at the same time who are not beneficiaries. Islamic law is more permissive on form, but the statutory form is what a probate registry enforces.
• State the governing intention plainly: that your estate be distributed according to Islamic law after debts, funeral expenses, unpaid zakat and mahr.
• Keep any wasiyyah within one third of the net estate and outside your fixed-share heirs, unless you intend to rely on heirs' consent, which is revocable and uncertain.
• Appoint executors who understand the assignment, ideally including someone literate in faraid, and a lawyer-drafted schedule of assets: land documents, RSA and insurance nominations, bank and fund accounts, business interests.
• Check your pension and takaful nominations separately: RSA proceeds and family takaful benefits pass by nomination and their treatment in the estate raises distinct questions; align the paperwork so nominations and the will point the same way.
• Review after every marriage, divorce, birth, major purchase and relocation; marriage generally revokes an earlier will under Nigerian statutes.

Common failure modes

The recurring Nigerian disputes are predictable. A will leaving everything to one branch of a polygamous family invites years of litigation whatever the governing law. A wasiyyah to a fixed-share heir fails without the other heirs' consent. An unsigned or badly witnessed document fails entirely, and the estate falls into intestacy, where administration law, customary practice and family power dynamics take over. And silence is the biggest failure: no will, no asset schedule, no nominations, leaving widows and minors to negotiate from weakness. The one-third discipline plus fixed shares is not merely doctrine; it is a dispute-resistant architecture, since most of the estate's destination is fixed in advance and beyond argument.

Keeping the will alive: reviews, revocation and storage

A wasiyyah is not a monument; it is a living document that must track a moving life. The events that should trigger a same-month review are mechanical: marriage, divorce, the birth of a child, the death of a named heir, executor or guardian, acquiring or disposing of major assets, and relocation to a different state, since the legal terrain for Muslim estates varies across Nigeria. Under general Nigerian succession law, marriage can affect the validity of an earlier will, which makes the post-wedding review more than good practice. Small changes can be made by codicil, a signed and witnessed amendment, but wills that have accumulated several codicils are safest rewritten cleanly, because layered amendments are where ambiguity and challenge breed. Revocation should always be explicit: a new will should state that it revokes all earlier wills, and superseded documents should be destroyed, not filed.

Storage decides whether the document works when it matters. The original should sit somewhere your executor can actually reach without you: with your lawyer, in a bank facility your executor can access, or registered at a probate registry where available, with copies noted to the executor and a trusted family member. A perfect will nobody can find produces exactly the intestacy chaos it was written to prevent. Pair the will with the asset map from our estate planning guide and the two documents together give your family the map and the mandate in one place.

Frequently asked questions

Can I just write "distribute my estate per Sharia" and stop there?

A one-line will is better than nothing but forces your executors to reconstruct your assets and family map. A proper will names executors, schedules assets, states the Islamic distribution intention and handles the wasiyyah expressly. The islamic-will page covers structure in more depth.

Do my daughters really get half my sons' shares, and can I equalise?

The 2:1 ratio among children is Quranic and sits within a system where men carry maintenance obligations women do not. You cannot rewrite faraid by will under Islamic law, but you may give gifts during your lifetime, which classical law treats differently from bequests, subject to conditions of fairness among children. Take scholarly guidance before structuring lifetime gifts.

What happens if I die without any will?

In states with Islamic-law provisions and Sharia court jurisdiction, your estate should be distributed by faraid through those systems. Elsewhere, administration statutes and family arrangements govern, and Islamic distribution happens only if your family chooses and agrees to it. Intestacy outsources your obligations to chance.

Can my non-Muslim relatives inherit from me?

Under the majority classical position, difference of religion bars fixed-share inheritance, and the wasiyyah third exists precisely for such cases: you may bequeath up to one third to non-Muslim relatives. This is a standard use of the instrument.

Does an Islamic will cover my RSA and takaful benefits?

Nominations drive those payouts in the first instance, and whether the proceeds then form part of the Islamic estate is a question scholars and courts treat carefully. The safe practice is alignment: make nominations consistent with faraid and say so in the will. Our estate planning guide covers the full asset map.