Fixing a Missed or Wrong Indian Tax Return as an NRI: Belated, Revised, and the Updated Return (ITR-U) Explained

You filed your Indian return for financial year 2023-24 from Dubai, paid what the portal said, and moved on. Eighteen months later an email from the department points out that the Rs 4,20,000 of NRO interest your bank reported in your Annual Information Statement never made it onto the return, because you assumed the 31.2% TDS the bank cut was the end of the matter. Or the mirror image: a buyer deducted Rs 12,00,000 under Section 195 when you sold a Pune flat, your actual long-term capital gains tax was a fraction of that, and you simply never filed the return that would have refunded the difference. Two NRIs, two gaps, and two completely different fixes. One of them has a clean correction route. The other may have already lost the money. The difference comes down to which of three sections you are allowed to use, and the trap is that the most talked-about of the three, the updated return, is precisely the one that cannot help the second NRI at all.

The 30-second answer: India gives you three ways to fix a tax return. A belated return under Section 139(4) is for a return you never filed; the deadline is 31 December of the assessment year (so 31 December 2026 for FY 2025-26). A revised return under Section 139(5) corrects a return you already filed; same 31 December deadline. Both can still carry a refund and reduce tax. The updated return (ITR-U) under Section 139(8A) runs far longer, now 48 months from the assessment-year end after the Finance Act 2025, but it can only increase tax: it cannot claim or increase a refund, reduce liability, or report a loss. ITR-U costs an extra 25% / 50% / 60% / 70% of tax and interest by how late you file. To reclaim excess TDS, use a belated return, not ITR-U.

For the full filing walkthrough that prevents most of these situations, start with the hub guide: ITR filing for NRIs, AY 2026-27. This article is the repair manual you reach for after something has already gone wrong: you missed the deadline, you filed the wrong number, or the department's data shows income you never disclosed. What follows is the part that decides the outcome: which of the three sections you are actually allowed to use, the exact deadline on each, the additional-tax cost of the updated return laid out with rupee figures, the hard list of things ITR-U cannot do, and how all of this interacts with a notice if one has already landed.

The three repair routes, and the one question that picks between them

Before anything else, answer one question: are you trying to pay more tax or get money back? That single fork decides almost everything, because the longest and most flexible correction window in Indian tax law, the updated return, is a one-way street that only runs toward the department.

The three routes are:

• Belated return, Section 139(4). You never filed an original return for the year and the original due date has passed. You file late, inside the belated window. This return can carry a refund and can reduce your liability versus what TDS already took.
• Revised return, Section 139(5). You did file (on time, or belated), but the return has a mistake or omission, a forgotten gain, a wrong figure, the wrong schedule. You replace it with a corrected version. This too can carry a refund and reduce liability.
• Updated return, ITR-U, Section 139(8A). Both the belated and revised windows have closed, but you have undisclosed income that should have been taxed. You come clean and pay, with an additional-tax surcharge on top. This return can only increase your tax.

The deadlines run in that order too. The belated and revised windows are short and close together. The ITR-U window opens after they close and stays open for years. So in practice you check the calendar first: if you are still inside the belated and revised window, that is almost always the better tool, because it can still reduce tax and carry a refund. Only once that window has shut does ITR-U become the route, and only if your correction increases tax. If your correction would reduce tax or create a refund and the normal window has closed, you are in condonation territory, covered in the edge cases below.

Route one: the belated return under Section 139(4)

A belated return is what you file when you missed the original due date entirely. For most NRIs the original due date under Section 139(1) is 31 July of the assessment year (the year after the financial year ends), unless your accounts require an audit, which is rare for salaried or investment-income NRIs.

Miss that, and Section 139(4) lets you still file, but only up to 31 December of the same assessment year, or before the assessment is completed, whichever is earlier. To make the dates concrete: for financial year 2025-26 (assessment year 2026-27), the original due date is 31 July 2026 and the belated deadline is 31 December 2026. After 31 December 2026, the belated door is shut for that year, and ITR-U becomes the only remaining option.

Filing late is not free. Two costs attach:

• A late-filing fee under Section 234F: Rs 5,000, reduced to Rs 1,000 if your total income for the year is below Rs 5 lakh, and nil if your income is below the basic exemption limit.
• Interest under Section 234A at 1% per month on any unpaid tax from the original due date until you file, on top of the Section 234B and 234C interest that already applies to advance-tax shortfalls.

The critical point for an NRI chasing a refund: a belated return can still carry a refund. If a bank over-deducted on your NRO interest, or a property buyer deducted Section 195 TDS far above your real capital gains tax, the belated return is exactly how you reclaim that excess, as long as you file before 31 December of the assessment year. There is one real cost beyond the fee and interest: a belated return loses the right to carry forward most losses (business losses and capital losses), although house-property loss and unabsorbed depreciation are still allowed to carry forward. For the mechanics of carrying losses forward and why timely filing matters there, see capital loss set-off and carry-forward for NRIs.

Route two: the revised return under Section 139(5)

A revised return is for the NRI who already filed but got something wrong. The trigger is a mistake or omission in the return you submitted, whether you filed on time or belated. Common NRI cases: you reported your salary and bank interest but forgot a mutual-fund capital gain that showed up in your AIS, you put NRO interest under the wrong head, you claimed a TDS credit against income you did not actually offer, or you filed ITR-1 when as an NRI with capital gains you should have filed ITR-2.

The deadline is the same as the belated one: 31 December of the assessment year, or before the assessment is completed, whichever is earlier. So for FY 2025-26 you can revise up to 31 December 2026. Two features matter:

• You can revise more than once within the window. Each revised return replaces the previous one, and the last valid one before the deadline is the operative return.
• A belated return can itself be revised. Filing late does not cost you the right to correct a later-discovered error, as long as you are still inside the 31 December window.

Like the belated return, a revised return can reduce tax and carry a refund. This is the dividing line that matters: belated and revised returns are full returns that can move tax in either direction. The updated return cannot. So if you are inside the 31 December window, revising is almost always preferable to waiting and using ITR-U, because revising preserves your ability to claim relief, reduce liability, and recover excess TDS. The most expensive mistake here is letting the 31 December deadline pass while you "gather documents", because once it does, a correction that would have reduced your tax can no longer be made through a return at all.

Route three: the updated return (ITR-U) under Section 139(8A)

The updated return is the long-window route, and the one the 2025 changes reshaped. It was introduced by the Finance Act 2022 to let taxpayers voluntarily disclose income they had missed, in exchange for paying the tax plus an additional-tax surcharge, and in exchange for the department not having to chase them. It is filed on Form ITR-U.

The extended window: now 48 months

Originally the ITR-U window ran 24 months from the end of the relevant assessment year. The Finance Act 2025, effective 1 April 2025, doubled this to 48 months. So the windows now read:

• AY 2022-23 (FY 2021-22): file ITR-U up to 31 March 2026.
• AY 2023-24 (FY 2022-23): up to 31 March 2027.
• AY 2024-25 (FY 2023-24): up to 31 March 2028.
• AY 2025-26 (FY 2024-25): up to 31 March 2029.

That is a long runway, and it is the single reason ITR-U is worth understanding even if your belated and revised windows have closed. But the runway is not free, and the toll rises sharply the longer you wait.

The additional-tax tiers: 25%, 50%, 60%, 70%

When you file ITR-U you pay the normal tax and interest on the additional income, and then an additional tax calculated as a percentage of that tax-plus-interest amount. The percentage depends on how late you file, measured from the end of the relevant assessment year:

Filed within	Additional tax (on tax + interest)
12 months of AY end	25%
12 to 24 months of AY end	50%
24 to 36 months of AY end	60%
36 to 48 months of AY end	70%

The 25% and 50% tiers existed from the start. The 60% and 70% tiers are the new additions that came with the Finance Act 2025 when it extended the window into years three and four. The base on which the percentage is applied is the aggregate of the additional tax and the interest (Sections 234A, 234B, 234C, plus any Section 234F fee), not just the bare tax. That detail materially changes the arithmetic, as the worked example below shows.

What you must pay, in order

The total cash you hand over with an ITR-U is built in layers:

1. The tax on the additional income, at your applicable rate.
2. The interest under Sections 234A, 234B and 234C on that tax.
3. Any late-filing fee under Section 234F, if it applies.
4. The additional tax at 25%, 50%, 60% or 70% of the sum of the above.

You pay all of this as self-assessment tax before filing, and the challan details go into the ITR-U.

Worked example: an NRI who missed NRO interest

Take Anjali, an NRI in London. For FY 2022-23 (AY 2023-24) her Pune NRO account earned Rs 4,20,000 of interest. Her bank deducted TDS at 31.2%, which is Rs 1,31,040. She assumed that was final and never reported the interest, so it sat undisclosed. The rest of her Indian income was small enough that the NRO interest pushed her into a slab where her marginal rate on this income works out to about 30% plus 4% cess.

Now it is early 2026 and she wants to come clean. Her belated and revised windows for AY 2023-24 closed on 31 December 2023, so a belated or revised return is off the table. ITR-U is her route. Filing in early 2026 puts her in the 24-to-36-month tier, so the additional tax is 60%.

Step by step:

• Additional income to disclose: Rs 4,20,000.
• Tax on it at roughly 31.2% (30% plus 4% cess): about Rs 1,31,040.
• TDS already deducted by the bank: Rs 1,31,040. This is credited against the tax, so her remaining tax here is close to nil. But the additional-tax surcharge is not calculated only on the net cash shortfall; ITR-U adds it on the tax and interest computed on the disclosed income.

To keep the arithmetic clean and show the tiers clearly, assume instead that the income was rental income of Rs 4,20,000 with no TDS deducted at all (a common NRI gap, where tenants paid directly into the NRO account and never deducted under Section 194-IB). Now:

• Tax on Rs 4,20,000 at 31.2%: Rs 1,31,040.
• Interest under Sections 234A and 234B, accruing at 1% per month from the original due date to the filing date, roughly Rs 39,300 over about 30 months on the unpaid tax (figures rounded for illustration).
• Aggregate of tax and interest: Rs 1,31,040 plus Rs 39,300 = Rs 1,70,340.
• Additional tax at the 60% tier: 60% of Rs 1,70,340 = Rs 1,02,204.
• Total outgo with the ITR-U: Rs 1,31,040 + Rs 39,300 + Rs 1,02,204 = Rs 2,72,544.

Had Anjali disclosed the same income one tier earlier, within 24 months (the 50% tier), the additional tax would have been 50% of Rs 1,70,340, about Rs 85,170, a saving of roughly Rs 17,000 on the surcharge alone, before counting the smaller interest. Wait into the 36-to-48-month tier (70%) and the additional tax climbs to about Rs 1,19,238. The lesson the tiers are designed to teach: if you are going to file ITR-U, the cheapest day to do it is today, because both the interest clock and the tier percentage move against you.

For the underlying rules on how rental income and NRO interest are taxed in the first place, see tax on Indian rental income for NRIs and tax on NRO interest.

What ITR-U cannot do, and why this matters most for refunds

This is the section that catches NRIs out, so read it twice. An updated return under Section 139(8A) cannot:

• Claim a refund, or increase an existing refund. ITR-U is structurally incapable of producing money back to you. If your honest correction would lead to a refund, ITR-U is simply not available for it.
• Reduce your total tax liability compared with the return already on file. It can only add income and add tax.
• Report a loss, or increase a reported loss. You cannot use ITR-U to declare a capital loss or business loss, and you cannot use it to carry one forward.
• Be filed if it produces no additional tax payable. If the net effect is zero or negative tax, ITR-U is not the right form.
• Be filed more than once for the same assessment year. You get one ITR-U per year. There is no revising an updated return.

Put plainly: ITR-U only runs in the department's favour. It exists so taxpayers can pay tax they owe, not recover tax they overpaid. This is exactly why the second NRI in the opening, the one with excess Section 195 TDS on a property sale and no return filed, cannot use ITR-U to get the money back. Their only return-based route was a belated return before 31 December of the assessment year. If that window closed, the refund is, in most cases, gone, with one narrow exception covered next.

When an NRI should actually file ITR-U

Given all the restrictions, ITR-U is the right tool in a specific, recurring set of NRI situations:

• Missed Indian capital gains. You sold listed shares, mutual funds, or property in an earlier year, the gain showed up in your AIS or in the buyer's TDS filing, and you never reported it. ITR-U lets you regularise it before a notice forces the issue. See capital gains tax on shares and mutual funds for NRIs.
• Unreported NRO interest. You assumed the bank's TDS was final and never declared the gross interest. If your slab rate is higher than the TDS rate, or if the interest pushes other income into a higher bracket, ITR-U is how you settle the gap.
• Undeclared Indian rental income. Tenants paid directly into your NRO account, no one deducted TDS, and the income never appeared on a return.
• Foreign-asset reporting gaps for the years you were a resident. If you were a resident (or RNOR) in an earlier year and missed Schedule FA, the calculus is more delicate, because the consequences there run under the Black Money Act, not just the Income-tax Act. Take advice before filing ITR-U on a Schedule FA gap; see Schedule FA foreign asset reporting.

The common thread: ITR-U fits when you owe more tax on income you failed to disclose, the normal windows have closed, and no disqualifying notice or search has begun. It does not fit when you are owed money.

Edge cases

The general rules above cover most NRIs, but several situations sit outside them and are exactly where mistakes get expensive.

Reclaiming excess TDS: a normal or belated return, never ITR-U

If the department or your records show you overpaid (the classic case being Section 195 TDS on a property sale far exceeding the actual long-term capital gains tax), the only return-based way to recover it is a return that can carry a refund: an original return under Section 139(1) if you are still in time, or a belated return under Section 139(4) up to 31 December of the assessment year. ITR-U is useless here by design. If both windows have closed, your remaining option is a condonation-of-delay application under Section 119(2)(b) to the Central Board of Direct Taxes, asking it to permit a late return to claim the refund. This is discretionary, the limit is generally a refund claim within six years from the end of the assessment year, and it is granted on genuine hardship, not as of right. For the TDS-recovery mechanics in detail, see TDS for NRIs and how to claim refunds and, to prevent the over-deduction in the first place, the lower-TDS certificate under Form 13.

A notice is already pending

The timing of a notice changes what you can do. ITR-U cannot be filed once a Section 148A (now Section 281 under the Income-tax Act 2025) show-cause notice has been issued after 36 months from the end of the assessment year, nor in several other notice situations, because the point of ITR-U is voluntary disclosure before the department comes looking. If you have already received a notice, the response runs through the notice procedure, not through a fresh ITR-U. For which notice means what and the response clock on each, see responding to Indian income-tax notices as an NRI. The honest read here: if a 148A/281 show-cause has landed, the window for the cheap voluntary fix has usually closed, and you should be replying to the notice with a CA, not filing ITR-U.

Search and survey cases

ITR-U is barred entirely where a search under Section 132, a survey under Section 133A, or a requisition under Section 132A has been initiated against you for the relevant year, and in cases where assessment, reassessment, revision or recomputation is pending or completed for that year. These are not NRI-specific, but the bar is absolute: once the department has acted, voluntary disclosure through ITR-U is no longer on the table for that year.

The interaction with residency

The correction route does not change the underlying question of what was taxable in the first place, which depends on your residential status that year. An NRI is taxed in India only on Indian-sourced income; a resident or RNOR has a wider net. Before you file any correction, confirm which status applied in the year you are fixing, because filing ITR-U to "disclose" foreign income that was never taxable in India as an NRI is a costly error. See NRI residency and RNOR rules.

The closing read

The three routes are not interchangeable, and the order you check them in is the whole game. First, ask whether you are trying to pay more or get money back. If you are owed a refund, or your correction reduces tax, your only return-based tools are the belated return (Section 139(4)) and the revised return (Section 139(5)), both capped at 31 December of the assessment year. Miss that date and a refund is usually lost short of a discretionary condonation application. The updated return will not save you, because it cannot move money in your direction.

If instead you owe tax on income you never disclosed, ITR-U is the route, and the 48-month window the Finance Act 2025 gave you is genuinely useful breathing room. But the 25% / 50% / 60% / 70% tiers and the running interest mean the bill only grows. For an NRI sitting on undisclosed NRO interest, a missed capital gain, or unreported rental income for a closed year, the honest framing is simple: ITR-U is a settlement, not a bargain, and the cheapest version of it is the one you file first thing. The most expensive outcome of all is doing nothing until a Section 280 reassessment notice arrives, because by then the voluntary discount is gone and a Section 270A penalty of up to 200% of the tax can be on the table instead.

Related guides

• ITR filing for NRIs, AY 2026-27
• Responding to Indian income-tax notices as an NRI
• TDS for NRIs and how to claim refunds
• The lower-TDS certificate under Form 13
• Tax on NRO interest
• Tax on Indian rental income for NRIs
• Capital gains tax on shares and mutual funds for NRIs
• Capital loss set-off and carry-forward for NRIs
• Advance tax for NRIs
• Form 26AS and AIS for NRIs
• Schedule FA foreign asset reporting
• NRI residency and RNOR rules
• Selling property in India as an NRI
• DTAA relief for NRIs

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This guide is general information, not tax advice, and reflects the rules as understood in early 2026 following the Finance Act 2025 amendments to Section 139(8A). Deadlines, additional-tax tiers, and the interaction with the Income-tax Act 2025 numbering can change, and your own position turns on your residential status and facts for each year. The worked figures are illustrative and rounded. Confirm your specific situation with a qualified chartered accountant before filing a belated, revised, or updated return, particularly where a notice, search, or Schedule FA or Black Money Act exposure is involved.