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Sri Lanka Cross-Border Tax Guide

Sri Lanka cross-border taxation for 2026. The guide covers: the 183-day rule for tax residency — the presence of 183 days or more in Sri Lanka in the calendar year triggers the residency; the worldwide income for residents — the Sri Lankan tax residents are taxed on the global income; the source income only for non-residents — the non-residents are taxed only on the Sri Lankan-source income; the treaty network of 40+ countries — Sri Lanka has the double taxation avoidance agreements (DTAAs) with over 40 countries; the foreign tax credit (unilateral) — the relief for the foreign taxes paid on the foreign-source income; the BOI companies — the Board of Investment companies with the special tax treatment; the exchange control regulations — now liberalized under the new Foreign Exchange Act.

183-Day Rule for Tax Residency

  • Principal test — 183 days in the calendar year: The individual who spends 183 days or more in Sri Lanka in any calendar year (the "January 1 to December 31") is treated as the Sri Lankan tax resident. The days of arrival and departure each count as one full day. The presence is counted as the "physical presence" — any day spent in Sri Lanka counts, regardless of the purpose (the business, the tourism, the family visit).
  • Non-resident status: The individual present for less than 183 days in Sri Lanka is treated as the "non-resident" and is taxed only on the Sri Lankan-source income — the income derived from the sources within Sri Lanka. The non-resident is subject to the withholding tax on the certain types of the income (the dividends, the interest, the royalties, the rent).
  • Resident determination for the treaty purposes: Where the individual is the dual resident (the resident of both Sri Lanka and another country under the domestic laws), the double tax avoidance agreement (DTAA) tie-breaker rules apply — the "permanent home", the "centre of vital interests", the "habitual abode", and the "nationality" as the final tie-breaker.

Worldwide Income for Residents

  • Unlimited tax liability: The Sri Lankan tax resident is subject to the "unlimited tax liability" — the worldwide income is taxable in Sri Lanka under the Inland Revenue Act (Act No. 24 of 2017, as amended). The resident must declare the global income on the annual tax return (the "ITR" — the "Income Tax Return").
  • Categories of the income: The worldwide income includes: (a) the "employment income" — the salary, the wages, the bonuses, the benefits in kind from the Sri Lankan and the foreign employers; (b) the "business income" — the profits from the trade, the profession, or the vocation; (c) the "investment income" — the dividends, the interest, the royalties; (d) the "rental income" — the property rental; (e) the "capital gains" — the gains from the disposal of the capital assets.
  • Foreign tax credit: The foreign taxes paid on the foreign-source income may be credited against the Sri Lankan tax liability on the same income — the unilateral foreign tax credit (the "FTC") is available under the domestic law. The credit is the lower of the foreign tax paid or the Sri Lankan tax attributable to the foreign income.

Source Income for Non-Residents

  • Limited tax liability: The non-resident (the "person who is not resident in Sri Lanka") is taxed only on the "Sri Lankan-source income" — the income that has the source in Sri Lanka. The non-resident does NOT file the comprehensive tax return — the tax is withheld at the source.
  • Withholding tax rates for non-residents: The standard withholding tax rates on the payments to the non-residents: (a) the dividends — 0% (exempt) or 14% depending on the type; (b) the interest — 5% (the residents of the treaty countries) or 14% (the non-treaty countries); (c) the royalties — 10% (the standard) or the reduced rate under the DTAA; (d) the rental income — 20% withholding on the rent paid to the non-residents; (e) the technical fees — 10% or the applicable treaty rate.
  • Exempt income for non-residents: The non-residents may be exempt from the Sri Lankan tax on: (a) the foreign-source income derived by the non-resident (not connected to the Sri Lanka operations); (b) the shipping and the air transport income under the reciprocal exemptions; (c) the interest on the foreign loans approved by the CBSL.

Treaty Network — 40+ Countries

  • DTAAs with 40+ countries: Sri Lanka has the double taxation avoidance agreements (the "DTAAs") with over 40 countries, including: the United Kingdom, the India, the China, the Japan, the South Korea, the Singapore, the Malaysia, the Australia, the Canada, the Germany, the France, the Italy, the Netherlands, the Sweden, the Norway, the Switzerland, the United Arab Emirates, the Saudi Arabia, the Kuwait, the Qatar, the Oman, the Bahrain, and the Pakistan.
  • UN Model-based: The Sri Lankan DTAAs are generally based on the UN Model Tax Convention (the "UN Model") — the source country retains the significant taxing rights. The typical treaty provisions: (a) the dividends — 10% to 15% withholding; (b) the interest — 5% to 10% withholding; (c) the royalties — 10% withholding; (d) the capital gains — the source country has the taxing rights on the immovable property gains and the shares of the property-rich companies.
  • Treaty relief procedure: To claim the treaty benefits, the non-resident must obtain the "Certificate of Residence" (the "tax residency certificate") from the home country tax authority. The Sri Lankan payer must withhold at the treaty rate (not the domestic rate) upon receiving the valid certificate. The IRD (the "Inland Revenue Department") administers the treaty relief through the "Withholding Tax Certificate" (the "WHT certificate").

Foreign Tax Credit (Unilateral)

  • Unilateral relief: Sri Lanka provides the unilateral foreign tax credit (the "FTC") under the Section 75 of the Inland Revenue Act. The FTC is available even in the absence of the DTAA — the domestic law provides the relief for the foreign taxes paid on the foreign-source income.
  • Credit calculation: The foreign tax credit is the lower of: (a) the foreign tax actually paid on the foreign-source income, or (b) the Sri Lankan tax attributable to the foreign-source income (the "foreign income / total income × total Sri Lankan tax"). The excess credit (where the foreign tax exceeds the Sri Lankan tax) is NOT refundable and may NOT be carried forward.
  • Per-source limitation: The FTC is calculated on the "per-source" basis — the credit for each category of the foreign income (the employment, the business, the investment, the rental) is limited separately. The taxpayer must provide the supporting documentation (the foreign tax return, the tax assessment, the payment receipt, the tax certificate from the foreign tax authority).

BOI Companies — Special Tax Treatment

  • Board of Investment (BOI) regime: The BOI (the "Board of Investment of Sri Lanka") provides the special tax incentives to the qualified companies under the BOI Act (Act No. 17 of 1990, as amended). The BOI companies enjoy: (a) the tax holidays — the full exemption from the corporate income tax (CIT) for 5 to 20 years depending on the sector and the investment amount; (b) the concessionary tax rates — 2% to 14% CIT after the holiday period; (c) the customs duty exemptions — the duty-free import of the capital goods and the raw materials; (d) the VAT exemptions — the exempt supply of the goods and the services.
  • Strategic Development Act (SDA): The SDA (Act No. 18 of 2019, as amended) provides the additional tax incentives for the "strategic development projects" — the projects with the investment exceeding USD 50 million. The SDA incentives include: the extended tax holidays up to 25 years, the concessional tax rates, and the exemption from the exchange control restrictions.
  • Dividend exemption for BOI companies: The dividends paid by the BOI companies out of the tax-exempt profits during the holiday period are EXEMPT from the dividend tax. The dividends paid out of the concessionary-taxed profits are taxed at 14% (or the applicable rate).

Exchange Control Regulations (Liberalized)

  • Foreign Exchange Act (No. 12 of 2017): Sri Lanka introduced the liberalised foreign exchange regime under the Foreign Exchange Act (the "FEA"), replacing the restrictive Exchange Control Act of 1953. The FEA removed the prior approval requirements for the most current account transactions.
  • Liberalised remittances: Under the FEA, the following remittances are freely permitted: (a) the dividend remittances to the foreign shareholders; (b) the royalty and the technical fee payments; (c) the repatriation of the capital and the profits by the foreign investors; (d) the loan repayments (principal and interest) to the foreign lenders; (e) the salary remittances by the foreign employees; (f) the investment income remittances.
  • Capital account restrictions: The FEA retains the certain restrictions on the capital account transactions: (a) the outward investment by the residents requires the CBSL approval above USD 10 million per year; (b) the foreign borrowing by the residents requires the CBSL approval above USD 5 million per year; (c) the purchase of the foreign real estate by the residents is restricted; (d) the opening of the foreign currency accounts by the residents is limited to the BOI companies and the exporters.