When Section 90 or Section 91 relief may apply to foreign income
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Non-resident Indians (NRIs), returning Indians, and Indian residents earning income abroad often face double taxation when the same income is taxed both in India and in the country where it arises. To prevent this, India has tax treaties with over 80 countries under Section 89A of the Income-tax Act, and domestic relief mechanisms under Sections 90 and 91. Section 90 allows taxpayers to claim benefits under a Double Taxation Avoidance Agreement (DTAA) between India and a treaty partner, while Section 91 provides relief when no such treaty exists. Understanding when each applies, what documentation is required, and how to file correctly can save lakhs in unnecessary tax. This guide explains the difference between Section 90 and Section 91 relief, who qualifies, what forms and certificates are needed, and the common mistakes that trip up NRIs and returning residents.
The rules differ depending on whether the foreign country has a DTAA with India. If it does, Section 90 relief is usually faster and more generous. If not, Section 91 steps in as a domestic fallback. Both require proof of foreign tax payment, foreign income, and proper disclosure in the Indian return. This article walks through real-life scenarios, the paperwork involved, and the key compliance points so readers can approach their tax filing with confidence rather than confusion.
Section 90 vs Section 91: What is the difference
Rohan: Veda, I earned my salary in Dubai last year and paid zero UAE tax. Now my CA says I still need to file something in India. What is this Section 90 or 91 mess?
Veda: Relax, Rohan. First, the good news: UAE has a DTAA with India, so you can claim relief under Section 90. That means you get credit for any tax you paid there, even if it was zero. Section 91 is the backup plan for countries without a DTAA, like if you were earning in a place with no treaty. Since you were in Dubai, Section 90 is your lane.
Rohan: But I paid zero tax in Dubai. How does credit help me?
Veda: The credit is not about getting money back. It is about making sure India does not tax the same income twice. If your UAE income is taxable in India, you declare it here, and the DTAA ensures you do not pay full tax again. You still file, but you attach Form 10F or the foreign tax credit statement your employer gives you.
When Section 90 applies
Section 90 relief kicks in when the country where you earned the income has a DTAA with India. You must file Form 10F (or the relevant DTAA form) and provide proof of foreign income and tax payment. The benefit is usually a dollar-for-dollar credit, capped at the Indian tax on that income.
When Section 91 applies
Section 91 is the domestic route. No DTAA exists, so India gives you a calculated credit instead. You still declare the foreign income, pay Indian tax on it, and claim a deduction for the foreign tax paid. The formula is stricter, and the paperwork is heavier, but it prevents double taxation.
Documents you will actually need
Rohan: Okay, so what papers do I actually need to keep? My employer in Dubai just gave me a salary slip. Is that enough?
Veda: Not quite. For Section 90, you need a Tax Residency Certificate (TRC) from the UAE authorities, your salary statement showing UAE tax paid (even if zero), and Form 10F filled in your Indian return. For Section 91, you need the foreign income statement, proof of tax deducted abroad, and a calculation showing how much credit you are claiming.
Rohan: A TRC from Dubai? How do I even get that?
Veda: Ask your employer or the UAE Federal Tax Authority. They issue TRCs to residents. Without it, the Indian tax office may reject your Section 90 claim. Keep everything in English or get it translated.
Checklist for claiming relief
- Obtain a Tax Residency Certificate from the foreign country (for Section 90)
- Collect salary or income statements showing foreign tax paid
- Fill Form 10F in your Indian return (Section 90) or the Section 81B calculation (Section 91)
- Attach proof of foreign tax payment, like a tax deduction certificate
- Declare the full foreign income in the appropriate schedule of your return
- Keep all documents for at least seven years in case of scrutiny
Common mistakes NRIs make
Rohan: Last year I just forgot to mention my Dubai salary in my ITR. My CA caught it before filing, but I was sweating bullets. What else do people mess up?
Veda: Forgetting to declare is number one. Number two is claiming Section 90 without a TRC. Number three is mixing up the foreign tax credit with the actual tax payable. People think if they paid zero abroad, they pay zero in India. Nope. India taxes global income for residents, so you still owe tax here unless the DTAA says otherwise.
Rohan: And Section 91?
Veda: People try to claim it without calculating the credit properly. The formula is not generous, and if you get it wrong, the tax office will recalculate and send a demand. Always use the lower of the foreign tax rate or the Indian rate on that income.
Pitfalls to avoid
- Claiming Section 90 without a valid TRC from the foreign tax authority
- Declaring only part of the foreign income and hoping it goes unnoticed
- Using the wrong form or schedule in the ITR for foreign income
- Not converting foreign income at the correct exchange rate for the relevant year
- Mixing up the foreign tax credit with exemptions under the DTAA
Filing tips for returning residents
Rohan: I am moving back to Mumbai next month. Does that change anything for my Dubai income?
Veda: Yes, it might. If you become a resident again, your global income becomes taxable in India. But your Dubai income for the part of the year you were non-resident may still qualify for Section 90 relief. The key is determining your residential status for that financial year. If you were in India for less than 182 days, you are likely non-resident, and the DTAA protects you.
Rohan: So I still file?
Veda: Always file if you have income from India or foreign sources. Even if you owe zero tax, the return protects you. And if you are switching from non-resident to resident, the tax office will want to see that transition clearly in your filings.
FAQs
Can I claim Section 90 if I do not have a TRC?
No. The TRC is mandatory for Section 90 claims. Without it, the tax office will treat your claim as invalid and may tax the full income in India.
What happens if I claim Section 91 in a country that has a DTAA?
You lose the better benefits of the DTAA. Section 91 gives a calculated credit, which is usually less generous than the treaty rate. Always check if a DTAA exists before choosing Section 91.
Do I need to file a return if I paid zero tax abroad and zero tax in India?
If you are a resident with foreign income, yes. Filing protects your record and ensures the tax office knows about your foreign income. Not filing can trigger notices later.
Final word
Rohan: So let me get this straight. I file, I declare, I attach the TRC, and I do not panic?
Veda: Exactly. Double taxation relief is not a trap. It is a safety net. Use it right, and you pay only what you owe, not twice.
Disclaimer: This article provides general information only and does not constitute tax, legal, or financial advice. Tax laws change frequently, and individual circumstances vary. Always consult a qualified tax professional and verify current rules at the official sources linked below before making any tax decisions.