Interest Tax Rate Between India and South Africa Under DTAA

Quick answer: Article 11(2) of the India-South Africa DTAA caps interest withholding tax at 10% of the gross amount, versus India's domestic rate of 20% under section 207(1) (Table, Sl. No. 3) of the Income-tax Act, 2025 (section 115A of the Income-tax Act, 1961) — but only for foreign-currency borrowing; rupee-denominated interest paid to non-residents falls outside that entry and is taxed at the rates in force under Sl. No. 8 of the same Table. Interest derived and beneficially owned by the Government, the Reserve Bank of India, the South African Reserve Bank, or an approved wholly Government-owned agency is fully exempt under Article 11(3) — a recipient-side test, not a payer-side one.

Key takeaways:

• Flat 10% DTAA interest rate under Article 11(2), one tier only — no separate bank/financial-institution rate
• Government, central bank and approved Government-owned agency interest is fully exempt under Article 11(3) — turns on who receives it, not who pays it
• Domestic 20% under section 207(1) (Table, Sl. No. 3) is scoped to foreign-currency debt; rupee/NRO interest is at the rates in force (30%/35%)
• Treaty signed 4 December 1996, in force from 28 November 1997; rates unchanged by the 2013 Protocol
• MLI Principal Purpose Test applies from 1 January 2023 for withholding taxes

Interest Tax Rate Between India and South Africa

Article 11 of the India-South Africa DTAA caps the withholding tax on cross-border interest at 10% of the gross amount — a single flat rate covering loans, bonds, debentures and other debt-claims, with no separate tier for banks or financial institutions. This makes South African lending into India, and Indian lending into South Africa, more predictable to price than under treaties with multiple interest tiers.

The India-South Africa Double Taxation Avoidance Agreement (DTAA) was signed at New Delhi on 4 December 1996, together with a Protocol that forms an integral part of the Agreement, and entered into force on 28 November 1997 under Article 28, notified in India by GSR 198(E) dated 21 April 1998. The treaty follows the UN Model Tax Convention, which tends to preserve greater source-State taxing rights than the OECD Model — consistent with the bilateral relationship between two developing, BRICS-partner economies.

A Protocol amending the Agreement was signed at Pretoria on 26 July 2013 and entered into force on 26 November 2014 (notified by the CBDT vide Notification No. 10/2015 / S.O. 316(E) dated 2 February 2015, with retrospective effect from 26 November 2014). This 2013 Protocol replaced Article 25 (Exchange of Information) with the current OECD-standard text, extending information exchange to taxes of every kind and removing bank-secrecy as a ground to refuse information. It made no change to any withholding rate — the rates below have never been amended since 1996.

Both India and South Africa have ratified the Multilateral Instrument (MLI): India deposited its instrument on 25 June 2019 (in force 1 October 2019) and South Africa on 30 September 2022 (in force 1 January 2023). The India-South Africa DTAA is a matched Covered Tax Agreement, and the South African Revenue Service (SARS) has published a synthesised text of the treaty as modified by the MLI, with the Principal Purpose Test (PPT) taking effect for withholding taxes from 1 January 2023 and for other taxes from 1 July 2023. This treaty carries no most-favoured-nation (MFN) clause — unlike some of India's other treaties, no protocol grants an automatic reduction if India later agrees a lower rate with a third OECD country.

Treaty Rate vs Domestic Rate: Detailed Comparison

Domestic Rate (Without DTAA)

Under section 207(1) (Table, Sl. No. 3) of the Income-tax Act, 2025 (section 115A of the Income-tax Act, 1961), interest paid to a non-resident on money borrowed in foreign currency by the Government or an Indian concern is withheld at 20% (before surcharge and cess). This provision does not cover rupee-denominated interest owed to non-residents, which instead falls under the ordinary rates in force — 30% for non-corporate recipients and 35% for foreign companies. A South African lender extending a rupee-denominated loan to an Indian borrower should not assume the 20% figure applies; the treaty's 10% cap under Article 11(2) is what actually governs, subject to documentation.

DTAA Rate (With Treaty)

Article 11(2) restricts India's (or South Africa's) right to tax interest to 10% of the gross amount, provided the recipient is the beneficial owner — regardless of whether the underlying debt is foreign-currency or rupee-denominated, secured or unsecured, or represented by a bond, debenture, or plain loan agreement.

Effective Tax Savings

A South African bank lends USD-equivalent INR 8 crore to an Indian company at 9% per annum, generating INR 72 lakh of annual interest. Without the treaty, TDS at 20% is INR 14.4 lakh, leaving INR 57.6 lakh. With the treaty (valid TRC and Form 41), TDS at 10% is INR 7.2 lakh, leaving INR 64.8 lakh — a saving of INR 7.2 lakh every year, which directly lowers the Indian borrower's effective cost of funds or raises the South African lender's net yield.

Who Qualifies for the Reduced Rate

Beneficial Ownership Requirement

The reduced rate under Article 11(2) applies only where the recipient is the beneficial owner of the interest — someone with the unrestricted right to use and enjoy the income. A back-to-back arrangement in which a South African entity borrows from a third-country lender and on-lends into India with no real margin or risk would likely fail this test.

Tax Residency

The recipient must be a South African tax resident under Article 4, evidenced by a Tax Residency Certificate from SARS.

The Article 11(3) Exemption Is Recipient-Side, Not Payer-Side

Article 11(3) exempts interest from source-State tax only where it is derived and beneficially owned by: (a) the Government, a political subdivision or local authority of the other State; (b) the Reserve Bank of India or the South African Reserve Bank; or (c) a wholly Government-owned agency or instrumentality specifically approved in writing by the competent authorities of both States. This is a test of who receives the interest — there is no separate exemption in this treaty for interest merely because it is paid by a government or on a government security; a private South African lender does not become exempt just because its Indian borrower happens to be a public-sector entity.

Anti-Abuse Rules: MLI PPT and GAAR

As a matched Covered Tax Agreement, the treaty's benefits (including the 10% cap and the Article 11(3) exemption) are subject to the MLI's Principal Purpose Test from 1 January 2023, alongside India's domestic GAAR and the treaty's own beneficial-ownership requirement.

No PE Attribution

Under Article 11(5), the reduced rate does not apply where the South African beneficial owner has a permanent establishment or fixed base in India and the debt-claim generating the interest is effectively connected with it; the interest is then taxed as business profits under Article 7.

Interest-Specific Treaty Provisions Under Article 11

Article 11(4) defines "interest" broadly as income from debt-claims of every kind, whether or not secured by mortgage, including government securities, bonds and debentures. Article 11(6) is the source rule: interest is deemed to arise in the State where the payer is resident, or, if the payer has a PE with which the debt is connected, in the State where that PE is situated, regardless of the payer's own residence. Article 11(7) is the arm's-length rule: where a special relationship between payer and recipient inflates the interest above what independent parties would agree, only the arm's-length portion qualifies for the 10% cap — the excess is taxed under each country's domestic law, engaging transfer pricing principles.

Documentation Required to Claim the Reduced Rate

Indian payers may apply the 10% treaty rate to interest paid to a South African resident only once the recipient has provided the documents below; without them, the payer must withhold at the full domestic rate.

Tax Residency Certificate (TRC)

The South African recipient must obtain a Tax Residency Certificate from the South African Revenue Service (SARS), generally through SARS eFiling, confirming South African tax residency for the relevant year. This is the foundational document required under section 159(8) of the Income-tax Act, 2025 (section 90(4) of the Income-tax Act, 1961).

Form 41 (formerly Form 10F)

If the TRC does not carry all prescribed particulars (name, status, nationality, South African tax reference number, and period of residential status), the recipient must also file Form 41 electronically. Since 1 October 2023, Form 41 must be filed on the Indian income-tax e-filing portal even by non-residents without an Indian PAN, through a dedicated non-PAN registration category. Treaty benefit at source is available only once the form is actually filed — it is not automatic on the strength of the TRC alone.

Self-Declaration and No-PE Confirmation

The South African recipient should provide a self-declaration confirming beneficial ownership of the income, that no permanent establishment or fixed base exists in India to which the income is attributable, and that the arrangement has genuine commercial substance rather than being structured principally to access the 10% rate.

Withholding Procedure for Indian Payers

Section 393(2): TDS Obligation

Under section 393(2) of the Income-tax Act, 2025 (Table, Sl. No. 17; section 195 of the Income-tax Act, 1961), any person paying interest to a non-resident must deduct tax at source at the time of credit or payment, whichever is earlier. The rate is 10% where the South African recipient's DTAA documentation is complete, or the domestic rate if it is not.

Forms 145 and 146 (formerly Forms 15CA and 15CB)

Before remitting the payment to South Africa, the Indian payer must file Form 145 electronically. For remittances exceeding INR 5 lakh in a financial year, a Chartered Accountant must also issue Form 146, certifying the taxability of the payment, the applicable treaty article and rate, and that TDS has been correctly deducted.

Section 395(1): Lower or Nil Withholding Certificate

If the South African recipient's actual Indian tax liability is expected to be lower than the standard withholding, they — the payee, not the Indian payer — may apply to the Assessing Officer for a certificate under section 395(1) of the Income-tax Act, 2025 (section 197 of the Income-tax Act, 1961) authorising a lower or nil rate. The Indian payer's own route, where warranted, is an application under section 395(2) of the Income-tax Act, 2025 (section 195(2) and (3) of the Income-tax Act, 1961) asking the Assessing Officer to determine the proportion of the remittance chargeable to tax.

FEMA and External Commercial Borrowing Compliance

Interest paid on external commercial borrowings (ECBs) from South African lenders must separately comply with the Foreign Exchange Management (Borrowing and Lending) Regulations, 2018, Schedule I as substituted by Notification FEMA 3(R)(5)/2026-RB (in force 16 February 2026). There is no all-in-cost ceiling for ECB with an average maturity of three years or more — pricing follows prevailing market conditions — while ECB of shorter average maturity must stay within the Trade Credit ceiling of benchmark rate plus 300 basis points (foreign currency) or plus 250 basis points (rupee-denominated). Form ECB-2 is due within seven calendar days from the end of the month in which proceeds are received or debt service is undertaken, filed through the designated AD Category-I bank.

Practical Considerations

The single most consequential distinction on this corridor is domestic-rate scoping: because the 20% headline figure in section 207(1) (Table, Sl. No. 3) only applies to foreign-currency borrowing, a rupee-denominated loan from a South African lender that lacks valid treaty documentation is not taxed at 20% but at the much higher rates in force (30% or 35%) — making the treaty's flat 10% especially valuable for rupee-denominated inter-company financing. The recipient-side scope of the Article 11(3) exemption is the second common trap: it does not extend to ordinary commercial lenders financing Indian government-linked borrowers, only to the specific named government bodies and approved agencies receiving the interest.

Practical Example

Johannesburg Capital Partners extends a rupee-denominated term loan of INR 12 crore to its Indian joint venture at 11% per annum (INR 1.32 crore annual interest).

• Without treaty documentation: because the loan is rupee-denominated, the 20% entry at section 207(1) (Table, Sl. No. 3) does not apply; TDS is instead at the 35% rate in force for a foreign company = INR 46.2 lakh, leaving INR 85.8 lakh.
• With DTAA (valid TRC and Form 41): TDS at 10% under Article 11(2) = INR 13.2 lakh, leaving INR 1.188 crore.
• Saving: INR 33 lakh annually — illustrating why the treaty rate matters even more for rupee loans than for foreign-currency ones.

See our India-South Africa DTAA guide for the full treaty picture, or our withholding tax rates page for dividends, royalties and FTS alongside interest. Beacon Filing's FEMA and RBI compliance team can help structure cross-border financing to stay within both the treaty rate and the ECB framework.

Frequently Asked Questions

What is the interest tax rate under the India-South Africa DTAA?

Article 11(2) caps the withholding tax on interest at 10% of the gross amount, provided the recipient is the beneficial owner. This applies as a single flat rate to all interest, with no separate tier for banks or financial institutions.

Is government interest really exempt, and for whom?

Yes, but only recipient-side under Article 11(3): interest derived and beneficially owned by the Government, a political subdivision or local authority, the Reserve Bank of India, the South African Reserve Bank, or a wholly Government-owned agency approved in writing by both competent authorities. A private lender does not qualify merely because the Indian payer is government-linked.

Is the domestic 20% rate the same for all interest to South African lenders?

No. The 20% rate at section 207(1) (Table, Sl. No. 3) covers only interest on foreign-currency borrowing. Rupee-denominated interest paid to non-residents is taxed at the rates in force instead — 30% for non-corporate recipients and 35% for foreign companies — making the treaty's 10% cap especially valuable for rupee loans.

What documentation does a South African lender need to claim the 10% rate?

A Tax Residency Certificate from SARS, Form 41 filed electronically, and a self-declaration of beneficial ownership and no-PE status. The Indian borrower must file Form 145 (and Form 146 for remittances exceeding INR 5 lakh) before remitting; without this documentation the higher domestic rate applies.

Does the MLI affect interest taxation under this treaty?

Yes. As a matched Covered Tax Agreement, the MLI's Principal Purpose Test applies to the India-South Africa DTAA from 1 January 2023 for withholding taxes, alongside India's domestic GAAR and the treaty's beneficial-ownership requirement, all three of which can independently deny the 10% rate to a conduit structure.

Does the 10% rate cover interest on external commercial borrowings?

Yes, Article 11 covers ECB interest from South African lenders, subject to the treaty conditions. Pricing must also satisfy FEMA's borrowing regulations: no all-in-cost ceiling for ECB of three years or more average maturity, and a Trade Credit ceiling of benchmark plus 300 (foreign currency) or 250 (rupee) basis points for shorter maturities.