Use the calculator to estimate your obligation, review the assumptions, and choose a giving route that can fulfil your intention. Programme delivery and current organisation details are published on World Aid Network’s main website.

Calculate and review
Gather values for your Zakat date, select the method you follow and check the calculation breakdown. The result is conditional on your entries; it cannot establish ownership, your financial history or recipient eligibility.
Choose a purpose
Keep annual wealth Zakat separate from Sadaqah and other religious payments. Ask the organisation how it handles restrictions, eligibility and any agency arrangement. Read medical treatment and Zakat before assuming a hospital payment is valid in every case.
Read current programme information
World Aid Network describes partner delivery rather than operating every clinical service itself. Current details should be checked on the main website and the relevant programme pages.
Keep records
Retain the valuation, method, payment designation and receipt. For questions about allocation or refunds, use the organisation’s published contact process. The calculator’s saved browser data is your working record, not proof that a payment was made.
Sources & calculation method
These sources inform this guide. A linked source does not endorse this site, and its publication date may differ from this page’s update date.
Scholarly methods can produce different results. See the method choices that affect a Zakat estimate and our editorial policy. This is educational guidance, not a personal ruling or a claim of named scholarly review.
To cite this guide: “How the calculator and giving journey work”, World Aid Network, updated 8 September 2026, https://zakat-calculator.org.uk/how-we-work