This article is for general education only. It is not financial advice and not a fatwa. Scholars differ on some details of purification, so please consult a qualified scholar about your own situation. See our Disclaimer.
You’ve done the hard part. You chose Shariah-compliant stocks or funds and avoided interest-based products. But there is one more step many Muslim investors don’t know about: purification.
Even companies that pass Shariah screening usually earn a small amount of income from non-halal sources. Purification is how you remove that portion from your own earnings. This guide explains what purification is, why it is needed, which methods scholars use and how to calculate it, step by step.
What is purification?
Purification (sometimes called tathir, meaning “cleansing”) means giving away the part of your investment income that came from non-halal sources, usually to charity.
Here is why it is needed. As we explained in How Shariah Stock Screening Works, most screening standards allow a company to have a small amount of non-compliant income, commonly less than 5% of its total revenue. This might come from:
- Interest earned on the company’s cash in the bank
- A small part of its business that isn’t halal, such as a hotel chain selling some alcohol
- Other income from prohibited activities
If you own shares in that company, a small part of your dividends and profits comes from that non-compliant income. That part isn’t considered rightfully yours, so you give it away.
Purification is not zakat
People often confuse purification with zakat, but they are completely different.
| Purification | Zakat | |
|---|---|---|
| What it is | Removing income that isn’t rightfully yours | An obligatory act of worship on wealth you rightfully own |
| Is it worship you are rewarded for? | No. Many scholars say you shouldn’t intend it as your own charity | Yes, it is one of the five pillars of Islam |
| How much? | The non-compliant portion of your income | Usually 2.5% of qualifying wealth held for a lunar year |
| Who receives it? | General charitable causes | The eight categories named in At-Tawbah 9:60 |
| Does one replace the other? | No | No |
So you need to do both: purify the non-halal portion, then pay zakat on your halal wealth.
What needs to be purified?
Scholars agree that dividends from Shariah-compliant stocks should be purified. Capital gains (the profit you make when you sell shares for more than you paid) are where views differ.
| Type of income | Common view | Notes |
|---|---|---|
| Dividends | Purify the non-compliant portion | Widely agreed |
| Capital gains | Differing views | Some scholars say purify gains too, because the share price partly reflects non-compliant income. Others say only dividends need purifying |
| Islamic funds and ETFs | Check the fund | Some funds purify on your behalf. Others report a ratio for you to apply yourself |
If you are unsure which view to follow, many people choose the more cautious approach and purify both dividends and gains. Please ask a scholar you trust.
Where to find the purification ratio
To calculate purification, you need the company’s non-compliant income ratio, which is the share of its income that comes from non-halal sources:
Non-compliant income ratio = Non-compliant income ÷ Total income
You usually don’t need to work this out yourself. Many Shariah screening apps, Islamic index providers and funds publish a “purification ratio” or “non-compliant income %” for each stock. Use the figure for the period in which you received the income.
Method 1: Purifying dividends
This is the most common and simplest method.
Formula: Purification amount = Dividends received × Non-compliant income ratio
Example
You own 100 shares of a company that pays a dividend of $2 per share this year. Its non-compliant income ratio is 3%.
| Step | Calculation | Result |
|---|---|---|
| 1. Total dividends | 100 shares × $2 | $200 |
| 2. Non-compliant ratio | from your screening tool | 3% |
| 3. Purification amount | $200 × 3% | $6 |
You keep $194 as halal income and give $6 to charity.
Method 2: Purifying based on company earnings
Some scholars and standards say purification should be based on the company’s non-compliant income per share, even if the company pays no dividend. This is because, as a part-owner, you share in all of the company’s income, not only the part it pays out.
Formula: Purification amount = (Non-compliant income ÷ Number of shares) × Shares you own × Share of the year you held them
Example
A company earned $15 million of non-compliant income during the year and has 500 million shares. You owned 100 shares for six months.
| Step | Calculation | Result |
|---|---|---|
| 1. Non-compliant income per share | $15,000,000 ÷ 500,000,000 | $0.03 |
| 2. For your shares | $0.03 × 100 | $3.00 |
| 3. Adjust for holding period | $3.00 × 6/12 | $1.50 |
This method is useful for companies that don’t pay dividends, such as many technology companies.
Purifying capital gains (cautious view)
If you follow the view that capital gains should also be purified, apply the non-compliant ratio to your gain.
Example
You bought shares for $5,000 and sold them for $6,000. The company’s non-compliant income ratio is 3%.
| Step | Calculation | Result |
|---|---|---|
| 1. Capital gain | $6,000 − $5,000 | $1,000 |
| 2. Purification amount | $1,000 × 3% | $30 |
If you sell at a loss, there is no gain to purify under this method.
Putting it together: a yearly purification worksheet
Most investors find it easiest to purify once a year. Here is an example for a simple portfolio of dividends:
| Holding | Dividends received this year | Non-compliant ratio | Purification amount |
|---|---|---|---|
| Company A | $300 | 2.0% | $6.00 |
| Company B | $150 | 4.5% | $6.75 |
| Company C | $80 | 0.0% | $0.00 |
| Total | $530 | $12.75 |
In this example, you would give $12.75 to charity for the year. As you can see, purification amounts are often small, but they still matter.
Tip: Keep a simple spreadsheet with your holdings, dividends, the ratios you used and the date you gave the money away. It makes the yearly calculation easy and helps when you calculate zakat.
Where should purification money go?
Purification money should go to charitable causes, such as helping the poor, supporting education or funding public welfare projects. Key points scholars commonly mention:
- Don’t use it for your own benefit. You can’t use it to pay your own bills or taxes, or to give gifts in your own name.
- Some scholars advise against using it for mosques or the printing of the Qur’an, preferring general welfare causes.
- Give it reasonably soon. Many people purify when they receive the income or at the end of each year.
What about funds and ETFs?
If you invest through an Islamic fund or ETF:
- Some funds purify for you, giving away the non-compliant portion before you receive any income. The fund documents should say so.
- Some funds publish a purification ratio in their annual or semi-annual reports for you to apply yourself.
- Some don’t mention it at all. In that case, contact the fund and ask.
Common mistakes to avoid
- Thinking a “halal” stock needs no purification. Most compliant companies still have a little non-compliant income.
- Mixing up purification and zakat. They are separate obligations.
- Using an old ratio. Ratios change each reporting period, so use the one for the period you held the shares.
- Forgetting companies that don’t pay dividends. Under the earnings-based method, they may still need purifying.
- Giving purification money to yourself or your family in a way that benefits you.
Key takeaways
- Purification means giving away the non-compliant portion of your investment income.
- It isn’t zakat. You need to do both.
- Dividends should be purified; scholars differ on capital gains.
- The basic formula is income × non-compliant ratio.
- Keep records, use up-to-date ratios and give the money to charitable causes.
Want to understand where the non-compliant ratio comes from? Read How Shariah Stock Screening Works. New to halal investing? Start with Halal Investing 101.
Disclaimer: This article is general education, not financial advice or a religious ruling. Examples are simplified. Please consult a qualified scholar on the method that applies to you.