Insight
Is an Islamic will valid under English law?
Yes. English law imposes no restriction on how a testator distributes their estate, so a will directing a farāʾiḍ distribution is valid provided it meets the Wills Act 1837 formalities. Two things still need active management: the will must be drafted so it cannot fail into intestacy, and it remains open to a claim under the Inheritance (Provision for Family and Dependants) Act 1975.
The legal position, stated simply
England and Wales has no forced heirship. A testator may leave their estate to anyone, in any proportion, for any reason or none. That is why a Shariah-compliant distribution is straightforwardly permissible here in a way it would not be in France or Spain: the freedom that makes English law awkward for civil-law families is exactly what makes it hospitable to farāʾiḍ.
The religious basis of the distribution is legally irrelevant to validity. A probate registry does not assess whether shares are correctly calculated under any school of jurisprudence. It asks whether the document is a validly executed will.
Formality: where templates fail
Under the Wills Act 1837, a will must be in writing, signed by the testator (or by someone in their presence and at their direction) with the intention of giving effect to it, and that signature must be made or acknowledged in the presence of two witnesses present at the same time, who then each attest. Section 15 is the trap: a gift to a witness, or to a witness's spouse or civil partner, is void - the will stands, the gift does not. In practice a family member is asked to witness, and a share is lost.
The other frequent defects are structural rather than formal:
- Aspiration instead of disposition. “I wish my estate to be distributed according to Islamic law” is a wish. It gives an executor nothing to execute and can leave the estate partially intestate.
- A fixed list of heirs. Shares stated as a snapshot of today's family become wrong the moment someone is born or predeceases. The shares should be drafted as a formula with substitution.
- No residuary clause. Anything not disposed of falls into intestacy - spouse takes the statutory legacy and half the residue, children the remainder, parents and siblings nothing. That is further from farāʾiḍ than making no will at all.
- A wasiyyah with no fallback. A charitable gift to an institution that has closed, with no substitution or general charitable intention, may fail and fall into residue.
The 1975 Act: the risk nobody sells you
The Inheritance (Provision for Family and Dependants) Act 1975 lets a defined class of people apply to the court for reasonable financial provision from an estate, regardless of the will. The class includes a spouse or civil partner, a former spouse who has not remarried, a child of any age, a person treated as a child of the family, and anyone being maintained by the deceased immediately before death.
A surviving spouse is judged by the more generous standard: what is reasonable in all the circumstances, not merely what is required for maintenance, with the court expressly directed to consider what she might have received on divorce. A farāʾiḍ distribution commonly gives a widow one eighth of the estate. The gap between one eighth and a divorce-comparable award is the exposure, and it is not theoretical.
The honest response is to plan around it: make lifetime provision so that the estate is not the only thing supporting the survivor; consider jointly held property that passes outside the estate; use the wasiyyah third deliberately where topping up provision is religiously permissible; and record reasons in a letter of wishes, which the court may take into account. What does not work is silence.
Assets outside the UK
Most Muslim families we work with hold assets in more than one country. Land abroad follows the law where it sits, and several jurisdictions apply their own succession rules to a Muslim's estate irrespective of any will. The UAE illustrates the point: the DIFC and ADGM registered-will regimes let non-Muslims opt out of default Shariah succession for UAE assets, while a Muslim's UAE estate is generally governed by Shariah in any event. The right structure depends on faith, nationality and situs together - which is where this becomes a cross-border exercise.
Our role. We are not a religious authority and issue no rulings. Where the correct shares turn on a point of jurisprudence, we work from your scholar's or institution's determination and render it as an English disposition that will be enforced exactly as written.
Common questions
Does an Islamic will need to be registered anywhere in the UK?
No. There is no compulsory register of wills in England and Wales. You can lodge a will with the Probate Service for safekeeping, but it is not a validity requirement. What matters far more is that your executors know the will exists and where the original is kept - a probate registry needs the original, not a copy.
Can I leave more than one third to charity in an Islamic will?
English law permits it without restriction. Whether it is permissible under Shariah is a separate question, and classically requires the consent of the heirs after death for bequests beyond the third. Because that consent cannot be guaranteed, the drafting has to produce a coherent result either way.
What if my spouse is not Muslim?
It is common, and it sharpens the 1975 Act exposure, because a farāʾiḍ share may fall well short of what a court would consider reasonable for a surviving spouse. It needs planning openly, before death, rather than being left for the family to litigate.
Find out where your estate breaks
Twelve questions, two minutes, no account. The cross-border risk check flags the jurisdictions, the forced-heirship traps and the digital assets your current arrangements will not carry across.