Double Taxation Relief: Exam-Ready CA Final Notes

What is Double Taxation and Why It Happens

Double taxation arises when the same income is taxed by two countries on the same assessee in the same accounting year. This happens because two basic rules of taxation can apply simultaneously: the residence rule (a country taxes the worldwide income of its residents) and the source rule (a country taxes income arising within its territory, regardless of the recipient's nationality or residence).

Example: An Indian resident earns rental income from property in the UK. India taxes it as worldwide income of a resident; the UK taxes it as income sourced in UK territory. Without relief, the same income bears tax in both countries.

Understanding the Legal Framework

Section 90 and Section 91 of the Income-tax Act, 1961

Section 90 allows the Central Government to enter into Double Taxation Avoidance Agreements (DTAAs) with other countries. These are bilateral treaties that specify which country has the primary right to tax particular categories of income.

Section 91 provides unilateral relief: an Indian resident is entitled to relief for taxes paid to a foreign country even without a DTAA. However, the foreign tax must be levied on the same income, in the same year, on the same person. This is crucial for exam purposes—many students incorrectly assume relief only exists with an agreement.

Application Priority

When a DTAA exists, the provisions of the DTAA or the Income-tax Act, whichever is more beneficial to the assessee, will apply. This is settled law. The assessee can cherry-pick the more favourable position in each situation.

Three Methods of Relief Against Double Taxation

1. Exemption Method

Income taxed in the country of source is completely exempt from tax in the country of residence. The residence country foregoes tax entirely on that income.

Advantage: Assessee bears tax in only one country (lower overall burden if the source country's rate is moderate).

Disadvantage: If the source country has no tax or a very low rate, the assessee escapes taxation altogether.

2. Tax Credit Method

The country of residence allows a credit for the tax paid in the source country, subject to the limit that the credit cannot exceed the tax that would have been payable in the residence country on that income.

Mechanics:
Tax in residence country on foreign income = ₹50,000
Tax paid in source country = ₹60,000
Credit allowed = ₹50,000 (the lower amount)
Additional tax payable = ₹0 (and ₹10,000 is excess, usually not recoverable)

Advantage: Ensures progressive taxation; assessee pays the higher of the two rates.
Disadvantage: If the source country's rate exceeds the residence country's rate, excess foreign tax is wasted.

3. Deduction Method

The foreign tax paid is deducted as an expense from gross income in the residence country, reducing the taxable income.

Mechanics:
Gross foreign income = ₹1,00,000
Foreign tax paid = ₹30,000
Taxable income in residence country = ₹70,000
Tax at, say, 30% = ₹21,000
Total tax burden = ₹30,000 + ₹21,000 = ₹51,000

Advantage: Simple to administer; no cap on credit.
Disadvantage: Often results in the highest overall tax burden; rarely used in DTAAs.

India's DTAA Approach

India predominantly follows the Tax Credit Method in its bilateral agreements. This reflects India's interest in ensuring that Indian taxpayers don't face excessive foreign tax liability, while maintaining India's tax base through progressive taxation.

However, in some agreements (particularly with developing countries), India has adopted the Exemption Method for specific categories, such as business profits or capital gains, to encourage cross-border investment.

Key exam point: When you encounter a DTAA-based question, check whether the credit method or exemption method applies to the specific income category (dividend, royalty, interest, capital gain, etc.) under that treaty.

Unilateral Relief (Section 91)

Do not assume relief requires a DTAA. Section 91 grants unilateral relief independently:

• An Indian resident can claim relief for tax paid to any foreign country (or territory not in India).
• No DTAA is necessary.
• The foreign tax must be on the same income, same assessee, same year.
• Relief is usually in the form of a deduction from total income (not a credit), unless a specific DTAA provides otherwise.

This distinction is heavily tested. If an exam question mentions a country with which India has no DTAA, the relief avenue is Section 91, not a treaty.

Common Exam Traps and Memory Tricks

• "Exemption" means no tax in the residence country, not in the source country. A frequent reversal error.
• Tax Credit ≠ Tax Deduction. Credit is rupee-for-rupee against tax liability; deduction is against income. Different results entirely.
• DTAA vs. Unilateral. DTAA is bilateral (treaty-based); unilateral relief (Section 91) exists without a treaty. Examiners love this distinction.
• Beneficial provision rule. Always ask: "Which is more beneficial—DTAA or Income-tax Act?" Exam answers hinge on this.
• Foreign Tax Credit Limit. The credit cannot exceed the tax rate of the residence country on that income. Excess foreign tax is lost.

Practical Exam Approach

Step 1: Identify the two countries involved and whether a DTAA exists.

Step 2: If a DTAA exists, locate the relevant article for that type of income (dividends, royalties, capital gains, business profits, etc.).

Step 3: Determine the method of relief in the DTAA (exemption, credit, or deduction) for that income category.

Step 4: Calculate relief under both the DTAA and Section 91/Income-tax Act; apply whichever is more beneficial.

Step 5: If no DTAA exists, apply Section 91 unilateral relief directly.

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Practice Questions

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FAQs

Q: Can an Indian resident claim relief for tax paid in a country with which India has no DTAA?
A: Yes, under Section 91. Relief is available even without a DTAA, provided the foreign tax is on the same income, same person, same year. The method of relief is typically a deduction from total income rather than a credit.

Q: What happens if the Tax Credit exceeds the tax payable in India on the same income?
A: The excess foreign tax credit is generally lost and cannot be carried forward or refunded (unless a specific treaty permits otherwise). This is why the Tax Credit Method can be less favourable than the Exemption Method if foreign tax rates are high.

Q: How do I determine which relief method applies to a particular income under a DTAA?
A: Check the relevant article of the DTAA for that income category (e.g., Article on "Dividends," "Royalties," "Capital Gains"). Each article specifies the allocation rule and relief method. Then compare with the Income-tax Act and apply the beneficial provision.

Q: Is unilateral relief under Section 91 also called "Foreign Tax Credit"?
A: No. Section 91 relief is typically a deduction, not a credit. The term "credit" is reserved for relief under a DTAA (and even then, it depends on the DTAA's method). This terminology distinction appears often in exam questions.

Nail the relief calculations and DTAA rules with CA Final Direct Tax Laws & International Taxation by CA Shirish Vyas—revision-ready and exam-focused. All the best for your finals.