Are you a Muslim living in the U.S.? Do you own a home, have savings or a retirement account, or have children? Then you’ve probably wondered who would care for your family — and what would happen to everything you’ve built — if something happened to you.

For Muslims, that question isn’t only practical. It’s a religious duty:

“It is not permissible for any Muslim who has something to will to stay for two nights without having his last will and testament written and kept ready with him.”

— Sahih al-Bukhari 2738

Here’s the problem: a generic will form downloaded from the internet may be legally valid, but it can easily leave out what matters most to your family and your faith. And if you leave no will at all, your state’s “intestacy” rules (default inheritance laws) decide who inherits — rules that often look nothing like the Fara’id.

What Is Al-Wasiyyah?

But first: two words that sound alike but mean different things.

In American law, a “will” is the whole document that directs where your estate goes (“estate” meaning everything you own at the time of your death). In Islamic law, “Al-Wasiyyah” is narrower — it’s the voluntary bequest you choose to make, separate from the fixed shares Allah (SWT) set for your heirs, known as the “Fara’id” or “Mawarith.”

An Islamic will brings both together in one legally binding document.

What an Islamic Will Should Cover

A well-drafted Islamic will usually addresses five things:

1. Debts and funeral costs. Inheritance is calculated only after funeral expenses and debts are paid. That includes any unpaid deferred “mahr” (the dower owed to a wife). Scholars differ on how unpaid zakat or an unperformed Hajj should be handled, so list these separately and discuss them with your attorney and a trusted scholar.
2. Al-Wasiyyah. Your optional gifts to charity or to people who don’t inherit, kept within the limits we explain below.
3. The Fara’id distribution. Everything left passes to your heirs: first the fixed shares (for example, a wife receives 1/8 when there are children), then the remainder to “residuary” heirs such as children, with each son receiving twice a daughter’s share.
4. An executor, or “Wasi.” The person who will settle your estate and carry out your instructions — plus an alternate, in case your first choice can’t serve.
5. Guardians for minor children. Your choice of a guardian and an alternate. A court still makes the final appointment based on your children’s best interests and any surviving parent’s rights, but your written wishes carry real weight.

The One-Third Rule (And Why Less Is Often Better)

The important question: how much can you give through Al-Wasiyyah? Up to 1/3 of your estate, calculated after funeral costs and debts.

The rule comes from the companion Sa’d ibn Abi Waqqas (may Allah be pleased with him). When he was seriously ill, he asked the Prophet ﷺ whether he could give away most of his wealth. The Prophet ﷺ refused, allowed one-third, and reminded him that it is better to leave your heirs wealthy than poor and dependent on others (Sahih al-Bukhari 1295 and 2742).

Ibn Abbas (may Allah be pleased with him) later encouraged people to give even less:

“I recommend that people reduce the proportion of what they bequeath by will to the fourth (of the whole legacy), for Allah’s Messenger (ﷺ) said, ’One-third, yet even one third is too much.’”

— Sahih al-Bukhari 2743

There’s one more limit. Al-Wasiyyah generally can’t go to someone who already inherits:

“Allah has appointed for everyone who has a right what is due to him, and no bequest must be made to an heir.”

— Sunan Abi Dawud 2870

According to the majority of scholars, a bequest above 1/3, or a bequest to an heir, takes effect only if the other adult heirs freely agree after your death. These situations need case-by-case review.

Who Al-Wasiyyah Can Help

As we’ve mentioned, Al-Wasiyyah is your chance to do good beyond the fixed shares. It can fund “Sadaqa Jariyah” (ongoing charity), such as a masjid or an Islamic school. It can also provide for people the Fara’id doesn’t include, such as:

• Non-Muslim parents, siblings, or other relatives
• Stepchildren and adopted children
• A relative blocked by a closer heir — for example, a grandchild whose parent died before you, when you have surviving sons

These are religious categories; state law may treat some of these relatives, such as adopted children, as full heirs.

Worked Example: The Hassan Family

Take this example: Omar Hassan dies leaving his wife, one son, and one daughter. None of his parents or grandparents are living. After funeral costs and debts, his estate is $600,000.

His will leaves $60,000 to a masjid endowment and $60,000 to his stepdaughter, who isn’t his heir. That’s $120,000 — 20% of the estate, under both the 1/3 limit and the 1/4 the Sunnah encourages.

The remaining $480,000 passes under the Fara’id:

This example is hypothetical. Shares change with births, deaths, marriages, and which relatives survive.

Making Your Islamic Will Legal in Your State

A will that reflects your faith only helps if a court will honor it.

Signing and witnessing. Each state sets its own rules, and they differ more than most people expect:

• Virginia and Oregon: A witness who receives something under the will doesn’t make the will invalid.
• Washington: An interested witness is allowed, but unless there are two other disinterested witnesses, that person’s gift is presumed to be improperly obtained — and may be reduced.
• Arizona: For wills signed on or after October 1, 2019, a beneficiary or their relative can’t serve as a witness unless the will is “self-proved.”

A “self-proving affidavit” (a notarized statement signed with the will) can make proving the will much simpler. It doesn’t, however, prevent someone from contesting it.

Clear instructions. A one-line direction like “divide my estate according to Islamic law” invites confusion, because American courts avoid deciding religious questions. Spell out who receives what, in plain terms, so your executor can act without a judge interpreting religious doctrine.

Your spouse’s legal rights. In Virginia, a surviving spouse can claim an “elective share” (a minimum set by law) of up to 50% of a broad “augmented estate,” depending on how long you were married. In Oregon, it ranges from 5% to 33%. In Washington and Arizona, community property rules generally give each spouse half of what was earned during the marriage. These rights can differ sharply from a wife’s 1/8 or 1/4 — or a husband’s 1/4 or 1/2 — under the Fara’id. A trust alone won’t remove them; options like a valid marital agreement need careful legal advice.

Assets That Pass Outside Your Will

Here’s what many families miss: your will generally controls only property in your name alone, with no beneficiary named. These usually pass outside it:

• Retirement accounts and life insurance with a named beneficiary
• Bank accounts with a “payable-on-death” beneficiary
• Jointly owned property with right of survivorship, which goes to the surviving co-owner
• Property held in a funded living trust

So if your 401(k) names one person as beneficiary, that person generally receives it all — no matter what your Islamic will says. And for most 401(k) plans, federal law makes your spouse the beneficiary unless your spouse consents in writing to someone else.

That’s why your will, your account titles, and your beneficiary forms need to work together. A properly funded living trust can also keep more of your estate out of “probate” (the court-supervised process of settling an estate) and away from public records. Whether a trust fits depends on your family and assets. (See “Estate Planning: Will vs. Trust (And Why a Trust Almost Always Wins)”.)

This article is general information, not legal or religious advice. Laws change and every family is different, so please consult an attorney about your situation.