WIFAQ
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Our method

What Wifaq calculates, how, and what it refuses to settle. Within the law of France. Updated: June 2026.

Rules enginereading…
Positions fixed onreading…
Integrity fingerprint (SHA-256 of the engine served)computing…

This fingerprint is recomputed in your browser, from the file actually served. Any change to the engine changes the fingerprint: you, or a scholar, can thus verify that you are looking at one precise, frozen version.

1. The principle

Wifaq displays, side by side, what the law of France provides and the Islamic distribution of an estate (farā'iḍ), as a matter of knowledge. The calculation is done in exact fractions; the amounts in euros are only an illustration. Everything happens in your browser: no data reaches us.

Wifaq gives neither a religious ruling (fatwa), nor personalised legal advice, nor any deed. When the schools differ, the platform shows it and refers you to a scholar; when a case falls outside its scope, it says so rather than guessing.

2. The families of rules encoded

Farā'iḍ distribution

Fixed shares (furūḍ), residuary heirs (ʿaṣaba, including the ʿaṣaba maʿa-l-ghayr), exclusion of an heir by a nearer one (ḥajb), proportional reduction when the shares exceed unity (ʿawl), redistribution of the remainder (radd), the concurrence of the grandfather and the siblings (jadd wa-l-ikhwa: muqāsama and the « best of three »), and the classic named cases: ʿUmariyyatān (Gharrāwayn), Akdariyya, and the Himāriyya (where the schools differ, see below).

The schools' positions

The school selector covers the four Sunni schools, with the Mālikī school by default (« or I don't know »). The divergences explicitly encoded in the sealed engine (the one covered by the fingerprint above) concern, among others: the exclusion of the siblings by the grandfather among the Ḥanafīs, the restriction of the Akdariyya, and the mushtaraka (al-ḥimāriyya), flagged as an unsettled divergence. Wherever a position depends on the school and affects your case, the tool displays « to be validated with a scholar ».

Separately: preparing the will template also adjusts the treatment of an unperformed hajj according to your school (a deductible debt among the Shāfiʿīs and Ḥanbalīs, charged to the third among the Ḥanafīs and Mālikīs). This logic belongs to drafting the document, outside the sealed calculation engine, and is therefore not covered by the fingerprint.

French devolution

Matrimonial regime (seven regimes, with prior liquidation of the community), orders of heirs, representation of branches, forced-heirship reserve and disposable portion, the spouse's option (a quarter in full ownership or the usufruct of the whole, valued under the scale of article 669 of the tax code), concurrence of parents and siblings (article 738), the spouse's reserve in the absence of descendants (article 914-1).

Applicable law

A warning layer flags the situations where a foreign law may intervene (habitual residence outside France, distinct from tax residence; foreign or dual nationality; real estate abroad), together with a reminder of the compensatory levy (article 913 paragraph 3, law of 24 August 2021).

3. What Wifaq does not settle (out of scope, by design)

  • Each person's religion within the calculation. The farā'iḍ distribution assumes Muslim heirs. Mixed situations (a relative of another religion, a convert whose family is not Muslim) are flagged and referred to a scholar: in classical fiqh, a difference of religion prevents inheriting but not receiving a bequest, while French law makes no distinction at all.
  • Any divergence between schools on a contested case. The tool displays the positions; it does not choose for you.
  • Zakāt. Assessing and paying it falls to your relatives, helped by a competent person; Wifaq does not calculate it.
  • Polygamy contracted abroad, fostering (kafāla), and rare family configurations that call for qualified advice.
  • Exact tax figures and the deed itself. The tax markers are indicative; the notaire verifies and authenticates.

4. The verified reference cases

The engine is continuously tested by 48 automated checks whose expected result is known and fixed: any change to the engine must leave them green. Here are the scenarios covered (current version):

Farā'iḍ distribution

  • Husband + 2 parents (ʿUmariyyatān)
  • Wife + 2 parents (ʿUmariyyatān)
  • Husband + 2 daughters + father + mother (ʿawl 12→15)
  • Husband + 1 full sister
  • Wife + 2 daughters + 2 full sisters (ʿaṣaba maʿa-l-ghayr)
  • Father + mother + 1 daughter
  • 1 son + 1 daughter (2:1)
  • Wife + 1 daughter (radd, spouse excluded)
  • Mother + 1 daughter (radd)
  • Wife + son + daughter + father + mother
  • Himāriyya / al-mushtaraka: divergence between schools flagged (the Ḥanafīs and Ḥanbalīs exclude the full brothers; the Mālikīs and Shāfiʿīs have them join the uterine siblings and share in their third); the tool shows a position and refers to a scholar
  • Father + mother only
  • Son + 2 grandmothers (1/6 shared)
  • 2 daughters + 1 full sister (ʿaṣaba maʿa-l-ghayr)
  • 1 full sister + 1 paternal sister (takmila + radd)
  • 1 son alone
  • Wife + 1 son
  • Mother + 2 siblings → mother 1/6 (ḥajb nuqṣān)
  • 1 daughter + 1 granddaughter (takmila 1/6) then radd
  • Grandfather + 1 full brother (muqāsama)
  • Grandfather + 2 full brothers
  • Grandfather + 3 full brothers (⅓ better than muqāsama)
  • Grandfather + 1 full sister (muqāsama 2:1)
  • Grandfather + mother + 4 full brothers (⅓ of the remainder)
  • Grandfather + wife + 2 full brothers
  • Akdariyya (husband + mother + grandfather + 1 sister)
  • Ḥanafī grandfather: excludes the siblings
  • Grandfather + 2 grandmothers + brother + son + daughter (brother excluded, shares correct)
  • Husband + daughter + paternal sister (ʿaṣaba maʿa-l-ghayr)
  • Wife + mother + grandfather + 1 full sister (no Akdariyya)
  • Gharrāwayn maintained with 1 blocked brother

French devolution

  • Spouse + 2 branches (community, age 65)
  • No spouse, 3 branches
  • Spouse with no descendants, 2 parents
  • Spouse with no descendants nor ascendants
  • A non-shared child → spouse ¼ in full ownership
  • Parents + 2 siblings (article 738): ¼ + ¼ + ½
  • Mother alone + 3 siblings (article 738): ¼ + ¾
  • Mother alone (sole parent): the whole estate

Disposable portion, reserve, usufruct

  • Usufruct at 65 = 40 %
  • Usufruct at 50 = 60 %
  • Usufruct at 80 = 30 %
  • Reserve with 1 child: disposable portion ½
  • Reserve with 2 children: disposable portion ⅓
  • Reserve with 4 children: disposable portion ¼
  • Spouse with no children: disposable portion ¾ (spouse's reserve ¼, article 914-1)

5. Sources and limits

The rules of the farā'iḍ distribution follow the classical positions of the four Sunni schools. The French devolution follows the Civil Code (reserve and disposable portion: articles 912 to 917; the spouse's option: articles 757 and 758; representation: articles 751 and following; usufruct scale: article 669 of the tax code; concurrence of parents and siblings: article 738; the spouse's reserve: article 914-1).

An unstable text is flagged as such: the compensatory levy (article 913 paragraph 3, law of 24 August 2021) is the subject of discussion as to its conformity with European Union law. Our calculations and our warnings are dated and may evolve with the law.

A religious and legal committee is being formed to validate and develop these rules. Until its members are publicly named, what precedes commits the Wifaq team alone, and every decision must be validated with a notaire and, when your situation calls for it, with a qualified scholar.

General, educational information. This page describes a method; it constitutes neither personalised legal advice nor a religious ruling.

Nothing leaves your device: Wifaq knows neither your family nor your estate.

Wifaq informs and prepares you; it replaces no one. Every decision is validated with a notaire and, when your situation calls for it, with a qualified scholar. Legal notices & privacy (FR)