How Is Investment Income Taxed in Sri Lanka?

If you hold a mix of shares, fixed deposits, and maybe a plot of land you plan to sell, you have probably wondered how all of it gets taxed. The short answer is that investment income tax in Sri Lanka does not work like the tax on your salary or your freelance earnings. Most of it is settled at source, before the money reaches you, and a good chunk of it never touches your annual return at all.

That is the part people get wrong. They assume every rupee of income lands in one big pile, gets the personal relief, and runs through the progressive slabs. Investment income mostly does not. Dividends and interest are taxed and finished before you see them. Capital gains sit on their own track entirely.

Here is how each of the three main types works, with the current rates and the rules that decide whether you ever have to declare them.

What counts as investment income in Sri Lanka?

The Inland Revenue Act treats investment income as its own category under Section 7(2). For an individual investor, three types matter most:

• Dividends from companies you own shares in
• Interest from bank deposits, savings accounts, and finance-company products
• Capital gains from selling an investment asset such as land, a building, or shares

Rent is also investment income, but it follows its own set of rules and reliefs, so this guide stays focused on the three that confuse investors most. What ties dividends, interest, and capital gains together is the question that decides everything else: is the tax final, or do you still owe something on it later?

How are dividends taxed in Sri Lanka?

When a resident company pays you a dividend, it deducts tax before the money reaches your account. That deduction is 15%, and it is a final withholding payment.

Final is the key word. Because the 15% is final, you do not add the dividend to your annual Return of Income, and you cannot use the 15% as a credit against tax on your other income. The deduction settles the tax on that dividend completely. So if a company declares a Rs. 100,000 dividend for you, it withholds Rs. 15,000 and pays you Rs. 85,000. That is the end of the tax story for that dividend.

The company handles this as Advance Income Tax under Section 84A, and the finality comes from Section 88(1A)(aa), which classifies dividends paid by a resident company on or after January 1, 2023 as final withholding payments. The 15% rate sits in the First Schedule.

So dividends are simple from your side. The money arrives already taxed, and you do nothing further.

How is interest income taxed?

Interest from a bank or finance company works the same way as dividends in structure, just at a different rate. A resident individual's interest is taxed at 10%, deducted at source as a final withholding payment.

That 10% has been the rate since April 1, 2025, when Amendment Act No. 2 of 2025 raised it from the earlier 5%. The 2026 amendment did not change it, so 10% is what applies now. The finality comes from Section 88(1)(b)(i). As with dividends, final means the interest does not go on your annual return and the 10% is not creditable against anything else.

Two exceptions are worth knowing, because they can put real money back in your pocket.

The second exception is newer. Amendment Act No. 11 of 2026 added Section 84(3)(f), which says no tax is withheld on interest paid to a resident individual who has no taxable income for the year. You qualify by giving your bank a declaration in the form the Commissioner-General specifies. The change is backdated to April 1, 2025. If your total income falls under the personal relief threshold, this means your interest can come to you untaxed instead of having 10% shaved off and then being hard to recover.

For everyone else, interest behaves exactly like dividends. Taxed at source, final, done.

How are capital gains taxed?

Capital gains are where investment income stops being simple. A capital gain arises when you realise an investment asset, meaning you sell or otherwise dispose of something like land, a building, or shares. The gain is the amount by which what you receive exceeds what the asset cost you, under Section 36.

The rate is a flat 15% for realisations on or after June 3, 2026. That is the date Amendment Act No. 11 of 2026 raised the rate from the previous 10%. If you realised an asset before that date, the 10% rate applied.

The important structural point: capital gains are taxed separately from your other income. They do not get added to your salary or business income and run through the progressive 6% to 36% slabs. Instead the gain is taxed at its own flat 15%, and only the rest of your income goes through the normal rates. There is also a restriction worth remembering: a gain cannot be reduced by a loss, including a loss on another investment asset, under Section 19(5). You pay 15% on the gain regardless of how your other assets performed.

Several gains are exempt, and they cover situations a lot of ordinary investors actually face:

• Quoted CSE shares. A gain on shares quoted on any official list of a stock exchange licensed by the Securities and Exchange Commission of Sri Lanka is exempt under the Third Schedule. Sell listed shares on the Colombo Stock Exchange and you pay no capital gains tax on the profit.
• Your home. Your principal place of residence is exempt, provided you owned it for the three years before the sale and lived in it for at least two of those three years.
• Small gains. A gain that does not exceed Rs. 50,000 is exempt, as long as your total gains for the year stay under Rs. 600,000.

For the deeper mechanics of property gains, including how to work out the cost base, see our guide on capital gains tax when selling property in Sri Lanka.

What's the difference between final and creditable tax on my investments?

This is the distinction that runs through everything above, so it is worth stating plainly.

Final withholding tax is the end of the matter. The payer deducts it, sends it to the IRD, and you have no further obligation and no credit to claim. Dividends at 15% and most interest at 10% are final.

Creditable withholding tax is a prepayment. The payer deducts it, but the income still belongs on your return, and the tax already deducted is subtracted from your final bill. You see this with things like professional fees, where the withholding tax on professional fees is a credit, not a closed book.

Capital gains are neither, exactly. They are a separate transaction-based tax you file and pay yourself within a month, rather than something a payer withholds. The full picture of which deductions close the book and which are prepayments is laid out in our explainer on final versus creditable tax in Sri Lanka.

Which investment income do I still have to declare?

Put the three types side by side and the answer falls out.

So for a typical investor, dividends and interest need no action: they arrive taxed and final. Capital gains need action, but not on your annual return. They need their own Capital Gains Tax Return filed within a month of each sale.

The one piece that catches people is the assumption that selling an asset can wait until tax season. It cannot. The capital gains clock starts on the day of the sale.

How does this work for a mixed portfolio?

Take a concrete example. Over the Year of Assessment, you receive:

• Rs. 200,000 in dividends from a resident company
• Rs. 500,000 in bank interest
• A land sale: you bought a plot for Rs. 4,000,000 and sold it for Rs. 6,000,000 on July 20, 2026

Here is how each is taxed.

The dividend has Rs. 30,000 deducted at 15% by the company. Final. You receive Rs. 170,000 and do nothing further.

The interest has Rs. 50,000 deducted at 10% by the bank. Final. You receive Rs. 450,000 and do nothing further.

The land sale produces a gain of Rs. 2,000,000 (Rs. 6,000,000 less the Rs. 4,000,000 cost). Because the sale is after June 3, 2026, the rate is 15%, so the capital gains tax is Rs. 300,000. You file a Capital Gains Tax Return and pay that Rs. 300,000 by August 20, 2026, one month after the sale.

Notice what is missing: none of this goes through the progressive slabs, and none of it appears on an annual income tax return. The dividend and interest were settled at source. The land gain was settled on its own return. Three income types, three separate tax events, zero of them mixed into your main return. If you also earn employment or business income, only that income runs through the personal relief and the 6% to 36% slabs covered in our guide on how to calculate income tax in Sri Lanka.

Investment income looks complicated because it follows three different rule sets at once. But once you sort each rupee into the right bucket, dividends final at 15%, interest final at 10%, and capital gains separate at 15%, the picture is clear. Most of it is already handled before you act. The one thing you cannot ignore is a capital gain, because that one is on you to file, and the clock is short.