NRI Tax in India: When ITR Filing Becomes Mandatory?

For Non-Resident Indians (NRIs), navigating India’s tax landscape often raises a critical question: When does filing an Income Tax Return (ITR) become mandatory? 

While many assume that living abroad exempts them from Indian tax compliance, the reality is governed by the source of income. If you earn income from Indian sources, be it rent, interest, capital gains, or business profits, you are subject to Indian tax laws.

Filing an ITR is not just a statutory obligation when your income exceeds the basic exemption limit (₹2.5 lakh under the old regime or ₹4 lakh under the new regime for AY 2026-27); it is also a strategic necessity. Whether you are looking to claim refunds on excess TDS, carry forward capital losses, or comply with high-value transaction reporting norms, understanding the triggers for mandatory filing is essential to avoid penalties and ensure financial compliance. 

This guide breaks down the exact scenarios where ITR filing becomes compulsory for NRIs, the applicable forms, and the key deadlines you cannot miss for FY 2025-26. 

Primary Mandatory Condition: Income Threshold 

The key guideline is that filing a tax return becomes compulsory once your total Indian income for the year exceeds the basic tax-free ceiling. Simply put, if you earn more than the basic exemption limit in India during a financial year, you must file an ITR. 

Please note that the New Tax Regime applies by default to individual taxpayers. To claim deductions under sections such as 80C, 80D, or HRA, you must expressly choose the Old Regime. 

It is important to note that the New Tax Regime is the default framework for individuals. Any claim for deductions under provisions like 80C, 80D, or HRA requires a deliberate opt-in for the Old Regime.

Other Mandatory Filing Triggers (Regardless of Income) 

Furthermore, even if your income falls below the aforementioned exemption limits, filing an ITR is still mandated in certain cases involving high-value transactions or other compliance obligations as outlined under Section 139(1) of the Income Tax Act. 

It is also worth noting that income below the exemption thresholds does not automatically exempt you from filing. Specific high-value transaction scenarios and statutory compliance requirements under Section 139(1) of the Act may still compel you to file a return. 

You are obliged to file a return if any of the following conditions apply to you during the financial year: 

• High TDS/TCS: The total Tax Deducted at Source (TDS) or Tax Collected at Source (TCS) amounts to ₹25,000 or more. 
• Current Account Deposits: You have deposited an aggregate sum exceeding ₹1 crore in one or more current accounts maintained in India. 
• Foreign Travel Expenditure: You have incurred more than ₹2 lakh towards foreign travel (for yourself or on behalf of any other individual) from an Indian bank account. 
• High Electricity Bills: Your cumulative electricity bill payments during the year exceed ₹1 lakh. 
• Savings Account Deposits: You have deposited an aggregate amount of more than ₹50 lakh in savings bank accounts. 
• Foreign Assets/Authority: You hold any asset (including financial interest) situated outside India, or you possess signing authority in any account located outside India. 
• Directorship/Unlisted Shares: You serve as a director in an Indian company or hold unlisted equity shares in an Indian company at any point during the year. 

When Filing is Highly Recommended (Even if Not Mandatory) 

While filing may not be strictly mandated by law in these cases, it is practically essential to regularize your tax position or access certain benefits: 

• Claiming TDS Refunds: If tax has been deducted (such as 30% TDS on NRO interest or rental income) but your actual tax liability is lower or nil - owing to exemptions or lower slab rates - you must file a return to claim the refund. 
• Carrying Forward Losses: If you have incurred capital losses (from stocks, mutual funds, or property) and wish to carry them forward to offset against future gains, filing the return by the due date is compulsory. 
• Visa/Loan Documentation: ITRs frequently serve as primary proof of income and financial stability for visa applications or loan approvals. 

Applicable ITR Forms for NRIs

• ITR-2: This form is mandatory if your income comprises Salary, House Property, Capital Gains, or Other Sources (such as interest), and you do not have any income from a business or profession. 
• ITR-3: This form is mandatory if you have income derived from a business or profession carried out in India. 

Note: NRIs are generally not eligible for ITR-1 (Sahaj).

Key Deadlines (AY 2026-27) 

• Due Date: The standard filing deadline is July 31st of the assessment year (for instance, July 31, 2026, for FY 2025-26), unless the CBDT announces an extension. 
• Audit Cases: If your accounts are subject to audit, such as when business turnover exceeds prescribed limits, the deadline is typically October 31st. 

Special Provision: Section 115H (For Returning NRIs) 

• If you transition from NRI to Resident status, you may avail yourself of Section 115H. This provision permits you to continue being taxed at the special NRI rates (typically 20%) on investment income derived from foreign exchange assets - such as specific bonds or shares acquired in foreign currency - for the year in which you become a resident and for subsequent years, provided you file the requisite declaration in your ITR. 
• Upon changing your residential status from NRI to Resident, Section 115H offers an option to retain the concessional NRI tax rate (generally 20%) on income from foreign exchange assets (e.g., certain bonds or shares purchased in foreign currency). This benefit extends to the year of transition and later years, subject to your filing a declaration in the ITR. 

When You Should File Voluntarily?

Even when filing is not strictly mandatory, submitting an ITR is strongly recommended in the following cases: 

• Claiming a Refund: If excess TDS has been deducted at source on rental income or property sales. 
• Loss Carry-Forward: If you wish to carry forward capital losses (e.g., from stock or mutual fund sales) to offset against future capital gains. 
• DTAA Claims: If you are claiming foreign tax credit benefits under Double Taxation Avoidance Agreements. 

FAQs 

1. Is an NRI taxed on income earned outside India? 

Generally, an NRI is taxed in India only on income received, earned, or accrued in India. Foreign income is usually not taxable in India if the individual qualifies as a non-resident under Indian tax law. However, residential status and the place where the income is first received should be examined carefully. 

2. Is interest earned on an NRO account taxable? 

Yes, interest earned on an NRO account is taxable in India. Banks generally deduct TDS at the applicable rate. If the actual tax liability is lower than the TDS deducted, the NRI can file an ITR and claim a refund. 

3. Is rental income from property in India taxable for an NRI? 

Yes, rental income from property situated in India is taxable in India. An NRI may generally claim eligible deductions such as municipal taxes paid, the standard deduction for house property, and housing loan interest, subject to the applicable provisions. 

4. Can an NRI claim relief under a DTAA? 

Yes, an NRI may claim relief under the Double Taxation Avoidance Agreement between India and the country of residence if the same income is taxable in both countries. A Tax Residency Certificate and other prescribed documents may be required to claim the benefit.
 
5. What happens if an NRI does not file an ITR when filing is mandatory? 

Failure to file a mandatory ITR may result in late filing fees, interest on unpaid tax, notices from the Income Tax Department, and difficulty in carrying forward certain losses. It may also delay or prevent the claim of a refund for excess TDS deducted.