About Stability Protocol
Stability Protocol is a free Zakat calculator covering four madhabs, 31 countries and four languages. It carries no advertising, requires no account, and stores no financial data. This page says who stands behind it and where its authority stops.
Who this is for
Most Zakat calculators assume one country and one school. This one was built for the people that assumption leaves out: a Pakistani engineer living in Germany, paid in euros, whose family still reckons in tola; a French convert who inherited no madhab from anyone; a student from the Gulf whose bank account is in London. The same three questions come back every year. Which nisab applies to me? Does my jewellery count? Can I deduct what I owe? The answer moves with the school and with the country. That is the gap this tool fills: it applies each school faithfully instead of picking one and keeping quiet about the others.
What it covers
- 4 schools
- Ḥanafī, Mālikī, Shāfiʿī, Ḥanbalī: each applied faithfully, including where they disagree.
- 31 countries
- Local currency, local gold unit, and the nisab authority recognised there.
- 4 languages
- English, French, Arabic, Urdu: written, not machine-translated.
- 7 asset types
- Gold, silver, cash, shares, cryptocurrency, business assets, real estate.
Who validates the fiqh
The rulings for the four Sunni schools were reviewed by a qualified imam on before publication. We do not name him here because we have not yet asked his permission to do so; the date and the scope of the review are stated so the claim can be held to account either way.
Beyond that review, the calculator rests on the classical texts of each school (al-Hidāya, al-Mudawwana, Minhāj al-Ṭālibīn, al-Mughnī among others) together with the AAOIFI Shariʿah Standards and the rulings of the International Islamic Fiqh Academy (OIC) for contemporary questions. Every rule the engine applies is listed with its source on our sources and methodology page.
Where our authority stops
- This is a calculation aid, not a fatwa. For your own circumstances, ask a scholar who knows them.
- We publish what we are unsure about rather than smoothing it over. The Ibāḍī rulings, the agricultural nisab and the contemporary treatment of cryptocurrency are all flagged in the methodology.
- We do not present the tool as an authority. We present it for correction.
How it is funded
The calculator is free and will remain so. It runs on voluntary contributions and a small number of partners vetted against the shariah. Conventional advertising networks are excluded permanently, not for now: ribā and maysir are structural to how they operate. The reasoning is set out in full in our Halal Monetization Charter.
Sadaqa routed through this site is 100% passthrough: we receive nothing from it.
Why these countries, and how one gets added
A country enters the list when three things can be established: a currency with a dependable exchange rate, the weight unit people actually use for gold there, and a recognised authority that publishes the local nisab. Where any one of those was missing we left the country out rather than serve a figure we could not source. Pakistan reckons in tola, the Gulf in grams, parts of North Africa still quote the mithqal; getting that wrong produces a number that looks right and is not. So adding a country is not an engineering problem, it is a sourcing problem. If you can point us to the body that publishes the nisab where you live, write to us and it goes on the list.
Who does this work
A very small team, working unpaid. We are not a body that issues fatwas and make no claim to be one. What we do is carry accurately what qualified scholars have established, and put it in a form people can actually use. Anything that turns on a ruling goes to someone qualified before it is published. We are tied to no commercial group, no party and no government, we accept no funding with conditions attached, and we gain nothing whichever school a user picks. That independence is what makes a faithful presentation of the four schools possible: had we a stake in one of them, the presentation would tilt without our noticing.
What we do not collect
The calculation runs in your browser. The amounts you enter are never sent to us, never stored, never logged. There is no account to create, so there is nothing to leak. Gold and silver prices are fetched at the moment you calculate, from a cache we operate ourselves, so the nisab reflects the market of the day rather than a figure frozen when the site was built. The only measurement we run is an aggregate page count behind a consent banner you can refuse without losing a single function.
How corrections are handled
Every correction we receive is read. Where it touches a point of fiqh, it goes back to a qualified scholar before anything changes: we do not amend a ruling on the strength of an email, however well argued. Where it concerns a translation, a figure or a broken link, it is applied directly and the page date updated. Changes to rulings are dated on the methodology page, so you can see what moved and when. We would rather publish a correction than defend a mistake.
How to cite this resource
If you are writing a guide, a dissertation or a khutbah and want to reference the rulings set out here, cite the methodology page rather than a calculator page. Calculator pages display live figures that change daily; the methodology states the rule and its source, which do not.
Stability Protocol, « Zakat Calculation: Sources and Methodology », stabilityprotocol.space/methodology/, reviewed 19 April 2026.
Corrections
If a ruling is imprecise, a school’s position poorly rendered, or a translation off, write to us. Accuracy in this matter is a trust (amāna). Corrections received are applied and dated. [email protected]
Fiqh last reviewed :