A Zakat estimate depends on more than arithmetic. The metal threshold, treatment of personal jewellery, pension and share valuation, and permitted debt deductions can change the eligible balance. Our calculator states its defaults and lets you adjust some choices, but it cannot decide which scholarly ruling applies to you.

1. Gold or silver nisab
In this calculator: Silver nisab is selected initially; you can switch to gold. We use 612.36g of silver or 87.48g of gold. The GBP threshold changes with the metal price for your assessment date.
Where approaches differ: The National Zakat Foundation (NZF) also records a 595g/85g convention. Its published guidance discusses the metal choice according to the assets held. Choosing a threshold is a method decision, not a way to subtract nisab from your wealth. Our calculator does not implement every school’s metal-only rules. Read the nisab guide and NZF’s explanation.
2. Personal gold and silver jewellery
In this calculator: The default asset entry includes personal gold and silver jewellery under the Hanafi approach. Value the relevant metal content on your Zakat date; stones and workmanship are not automatically part of that metal value.
Where approaches differ: Some scholarly approaches exempt jewellery kept for ordinary personal use. Ownership, intended use and excess or investment holdings matter. If you follow a different ruling, adjust the value you enter and keep a note of why. Read the jewellery guide and Zakat Foundation of America’s assessment guidance.
3. Pensions and underlying assets
In this calculator: Enter a supported eligible amount for a defined contribution pension, or select a labelled proxy based on the fund type. We do not ask you to enter a defined benefit transfer value as cash.
Where approaches differ: NZF’s published method assesses the zakatable share of defined contribution schemes and treats defined benefit schemes differently. Its fund percentages are estimates of eligible assets; they are not alternative Zakat rates. A scheme statement or fund-specific calculation is preferable to a generic proxy. Read the pension guide and NZF’s pension method.
4. Shares held for trading or investment
In this calculator: Trading shares are entered at market value. For long-term holdings, the initial option counts full market value; you can instead choose a clearly labelled 25% proxy to estimate underlying eligible assets.
Where approaches differ: An actual calculation of the underlying zakatable assets can be more accurate than a proxy. Do not add the full value and its proxy together, and do not count an ISA holding again in the separate ISA field. A 25% asset proxy is followed by the ordinary 2.5% calculation when the relevant conditions are met. Read the stocks guide and NZF’s calculation guide.
5. Debts and future payments
In this calculator: You decide which existing liabilities qualify before entering them. The calculator subtracts the amounts you supply; it cannot verify the religious treatment of a debt.
Where approaches differ: Current bills, future living costs, long-term loan instalments and the full mortgage balance are not interchangeable deductions. NZF discusses liabilities that may be deducted under its approach. Record the basis of your deduction, and ask a qualified scholar when the debt structure is unusual. Read the debt guide and NZF’s liabilities guidance.
A worked comparison
Suppose a long-term shareholding is worth £10,000. Counting its full market value gives £10,000 of eligible assets and an attributable 2.5% of £250. A 25% underlying-assets proxy gives £2,500 of eligible assets and an attributable 2.5% of £62.50.
Both figures assume that the applicable nisab and lunar-year conditions have been met for the overall assessment. The example does not establish which valuation method is appropriate for this holding. Use one supported method and keep its source with your record.
Common questions
Does the calculator follow one school for every asset?
Can I combine different methods in one calculation?
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.
- National Zakat Foundation: nisab weights and metal choice
- Zakat Foundation of America: jewellery assessment
- National Zakat Foundation: pension assessment
- National Zakat Foundation: understanding and calculating Zakat
- National Zakat Foundation: deductible liabilities
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: “Zakat methods that can change your calculation”, World Aid Network, updated 23 September 2026, https://zakat-calculator.org.uk/zakat-method-choices