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Khums

Free Excel calculators for individual and business Khums. Custom calculators available on request.

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What is Khums?

Khums is an obligatory Islamic financial duty — literally meaning "one fifth" — payable by Shia Muslims on net annual surplus income and on certain other categories of wealth. It is one of the branches (Furu' al-Din) of Islam and its fulfilment is a religious obligation.

Khums is divided into two equal shares: the Sahm al-Imam (the share of the Imam) and the Sahm al-Sadat (the share of the Sayyids). Both shares are distributed through authorised channels.

Available calculators

Individual calculator

For personal annual surplus income. Covers salary, savings, investments and all other personal income categories.

Business calculator

For business net profit and assets. Designed for sole traders, partnerships and company directors.

All calculators are:

  • Free to download
  • Provided in Excel format
  • Designed to handle calculations across multiple years

Upcoming calculators

  • First-time Khums payer calculator — for those calculating Khums for the first time.
  • Mortgage Khums calculator — incorporating current allowances for those with mortgage obligations.

Custom calculators

If your situation has specific requirements not covered by the standard calculators, ShiaJamaat can create a tailored calculator for your needs.

Your privacy is maintained. All information provided for a custom calculator request is treated with strict confidentiality and used solely for the purpose of creating your calculator.

How to download

1

Complete the request form

Select the calculator type and provide your name and email address.

2

Receive by email

The download link is sent directly to your email address immediately.

3

Download and use

Open the Excel file, follow the instructions on the first tab, and complete your Khums calculation.

Why we ask for your email: The download link is sent to your email to ensure secure access. We do not use your email for marketing.

Help & information

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Understanding Khums

Khums most commonly applies to net annual surplus income — income remaining after legitimate living expenses at the end of your Khums year. It also applies to other categories including minerals extracted from the ground, treasure found, and proceeds of sea diving, among others defined in Islamic jurisprudence. The Individual Calculator covers the most commonly applicable category of annual surplus income.

Khums is calculated at the end of your personal Khums year — the anniversary of the date on which you first began earning or first became obligated to pay Khums. This date is individual to you and is not tied to the Hijri or Gregorian calendar year. If you are unsure of your Khums date, please consult a qualified Islamic scholar.

ShiaJamaat provides calculators to help you determine the amount due. For guidance on where to submit your Khums payment, please consult your Marja' (religious authority) or a qualified Islamic scholar. ShiaJamaat does not collect Khums payments.

Using the calculators

Use the Individual Calculator if you are calculating Khums on personal income, savings, and personal expenses. Use the Business Calculator if you need to calculate Khums on business profits and business assets. If you are a sole trader or company director and need to calculate both personal and business Khums, you may need to use both calculators. If you are unsure, please contact us and we will advise.

A dedicated first-time payer calculator is currently in development. In the meantime, please contact us and we will advise on the correct approach for your situation, as first-time calculations may involve specific considerations regarding past accumulated wealth.

No. The calculators are tools to assist with the mathematical calculation of Khums. They are not a substitute for the guidance of your Marja' or a qualified Islamic scholar. For complex financial situations — such as business partnerships, mortgages, or inheritance — we recommend consulting a scholar alongside using the calculator.