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Sri Lanka Double Tax Treaty (DTAA) Finder

Pick a country to see whether Sri Lanka has a double taxation treaty with it, the capped withholding rates on dividends, interest and royalties, and an estimate of your foreign-tax-credit relief, so the same income is never taxed twice. Free, no signup, sources cited.

By Induwara AshinsanaUpdated Jul 17, 2026
Find your treaty & relief
IRD & EY sourced · 2026

41 treaty partners plus common non-treaty countries.

Income type

Sets which treaty rate is highlighted below.

Sri Lanka has a Double Tax Treaty with United States.

Treaty caps apply to source-country withholding tax, and you can claim foreign-tax-credit relief so the same income is not taxed twice.

Source-country withholding tax, treaty vs domestic

Income streamTreaty capDomestic rateApplies
Dividends15%14%14%
Interest10%14%10%
Royalties5% / 10%14%10%
  • 5% on rent for the use of tangible movable property; 10% on other royalties.

Double-tax relief estimate (Sri Lankan resident)

USD

Income before any foreign tax was withheld.

Picking a currency prefills its FX rate below.

USD

Tax withheld or paid in the source country.

Rs

Editable, update to today's USD/LKR rate.

%

The marginal SL rate for this income slice. Not sure? Use the income tax calculator. Presets are the current 6–36% brackets.

SL tax on income
Rs 540,000
USD 1,800
Foreign tax credit
Rs 300,000
USD 1,000
Net SL tax payable
Rs 240,000
USD 800
Total tax borne
Rs 540,000
Effective 18%

Cross-checked: total tax equals the higher of foreign tax and SL tax, you pay tax once, at the higher effective rate, never twice.

Rates from the EY Worldwide Corporate Tax Guide (Sri Lanka, Section F) and the IRD Double Tax Treaties register; relief per Inland Revenue Act No. 24 of 2017 s.97. Sources linked below. Informational estimate, not tax advice.

How it works

A double taxation avoidance agreement (DTAA), or tax treaty, is a bilateral agreement that stops the same income being fully taxed in two countries. Sri Lanka currently has 41 comprehensive income-tax treaties in force. This tool does two jobs: it looks up whether a treaty exists with the country you choose, and it estimates the relief a Sri Lankan resident gets on foreign income.

Treaty lookup and rates.Each treaty caps the withholding tax the source country may charge on passive income, dividends (Article 10), interest (Article 11) and royalties (Article 12). The tool shows that cap next to Sri Lanka's domestic non-resident rate (14% on dividends and royalties; 5–14% on interest). A treaty can only reduce the domestic rate, never raise it, so the rate that actually applies at source is:

applicable rate = min(domestic non-resident rate, treaty cap)

Foreign-tax-credit relief. A Sri Lankan resident is taxed on worldwide income, but s.97 of the Inland Revenue Act No. 24 of 2017 grants a credit for foreign tax already paid, capped at the Sri Lankan tax on that same slice of income. The arithmetic is deterministic:

  1. Convert the foreign income and foreign tax to rupees at your exchange rate.
  2. Sri Lankan tax on the income = gross income × your SL rate.
  3. Foreign tax credit = min(foreign tax paid, SL tax on income).
  4. Net Sri Lankan tax = max(0, SL tax − credit).
  5. Total tax borne = foreign tax + net SL tax.

Those four lines collapse to a single sanity check the tool runs on every keystroke: total tax = max(foreign tax, SL tax on income). You always pay tax once, at the higher of the two effective rates, never both in full. Where the foreign tax is higher than the Sri Lankan tax, the excess is not refunded; the credit is limited to the SL tax. This version uses a single applicable SL rate you supply for the income slice rather than re-running the progressive brackets, for a precise marginal rate, use the income tax calculator.

Worked examples

Treaty, foreign tax lower than SL tax, India interest

  1. Interest from India: Rs 1,000,000 gross, treaty cap 10% → foreign tax Rs 100,000.
  2. Your SL rate on this income: 18% → SL tax = 1,000,000 × 18% = Rs 180,000.
  3. Foreign tax credit = min(100,000, 180,000) = Rs 100,000.
  4. Net SL tax = 180,000 − 100,000 = Rs 80,000.
  5. Total tax = 100,000 + 80,000 = Rs 180,000 = max(100,000, 180,000).
  6. Effective rate = 180,000 / 1,000,000 = 18%, taxed once, at the SL rate.

Treaty, foreign tax higher than SL tax, USA royalty

  1. Royalty from a US client: USD 10,000 at Rs 300/USD = Rs 3,000,000.
  2. US withheld 30% (non-treaty rate on the relevant slice) = USD 3,000 = Rs 900,000.
  3. Your SL rate: 18% → SL tax = 3,000,000 × 18% = Rs 540,000.
  4. Foreign tax credit = min(900,000, 540,000) = Rs 540,000.
  5. Net SL tax = 540,000 − 540,000 = Rs 0.
  6. Total tax = 900,000 + 0 = Rs 900,000. The Rs 360,000 excess US tax is NOT refunded.

No foreign tax withheld, full SL charge

  1. Foreign income Rs 500,000, nothing withheld abroad (foreign tax = Rs 0).
  2. Your SL rate: 30% → SL tax = 500,000 × 30% = Rs 150,000.
  3. Foreign tax credit = min(0, 150,000) = Rs 0.
  4. Net SL tax = 150,000 − 0 = Rs 150,000.
  5. Total tax = 0 + 150,000 = Rs 150,000, the full Sri Lankan charge, no double tax.

Full DTAA country list & treaty rates

All 41 comprehensive income-tax treaties Sri Lanka has in force, with the maximum source-country withholding rate on each passive income stream. Ranges reflect ownership or recipient tests in the treaty text.

CountryRegionDividendsInterestRoyalties
AustraliaAsia-Pacific15%10%10%
BahrainMiddle East5% / 7.5% / 10%10%10%
BangladeshSouth Asia15%15%15%
BelarusEurope7.5% / 10%10%10%
BelgiumEurope15%10%10%
CanadaAmericas15%15%10%
China (Mainland)Asia-Pacific10%10%10%
DenmarkEurope15%10%10%
EgyptAfrica15%15%15%
FinlandEurope15%10%10%
FranceEurope10%10%10% / 15%
GermanyEurope15%10%10%
IndiaSouth Asia7.5% / 15%10%10%
IndonesiaAsia-Pacific15%15%15%
IranMiddle East10%10%8%
ItalyEurope15%10%10% / 15%
JapanAsia-Pacific10%15%0% / 7.5%
Korea (South)Asia-Pacific10% / 15%10%10%
KuwaitMiddle East5% / 10%10%20%
LuxembourgEurope7.5% / 10%10%10%
MalaysiaAsia-Pacific15%10%10%
MauritiusAfrica10% / 15%10%10%
NepalSouth Asia15%10% / 15%15%
NetherlandsEurope10% / 15%10%10%
NorwayEurope15%10%10%
PakistanSouth Asia15%10%20%
Palestinian AuthorityMiddle East10%10%10%
PhilippinesAsia-Pacific15% / 25%15%15% / 25%
PolandEurope10%10%10%
QatarMiddle East10%10%10%
RomaniaEurope12.5%10%10%
Russian FederationEurope10% / 15%10%10%
SeychellesAfrica7.5% / 10%10%10%
SingaporeAsia-Pacific15%10%15%
SwedenEurope15%10%10%
SwitzerlandEurope10% / 15%10%10%
ThailandAsia-Pacific15%10% / 25%15%
United Arab EmiratesMiddle East10%10%10%
United KingdomEurope15%10%10%
United StatesAmericas15%10%5% / 10%
VietnamAsia-Pacific10%10%15%

Air-transport onlyOman, Saudi Arabia and Hong Kong SAR have limited air-transport agreements, not comprehensive income treaties.

Frequently asked questions

Sources & references

Treaty caps transcribed from the EY Worldwide Corporate Tax Guide (Sri Lanka, Section F) and cross-checked against the IRD register; last verified on 2026-07-17. This is an informational estimate, not tax advice, confirm against the specific treaty text and consult a chartered accountant or the IRD before filing.

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Comments & feedback

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Found a bug, an out-of-date treaty rate, or want to suggest an improvement?

Email me at [email protected] , most fixes ship within 24 hours.