NRE vs NRO Account: What UK-Based NRIs Actually Need

The compliance problem hiding under "account type"

I kept using my regular Indian savings account for the first four months after I moved to the UK. Not because I didn't know NRE and NRO accounts existed, I'd heard the terms plenty of times, but because nobody told me the switch wasn't optional, or that it was supposed to happen the day I left, not whenever I got around to it.

That's the part almost nobody explains properly. Under FEMA, you don't become a non-resident by racking up 182 days outside India the way you do for income tax purposes. If you left India for a job, a course, or any move where you don't have a fixed return date, you're a non-resident under FEMA from the day you boarded the flight. Day one, not day one hundred and eighty-three.

Two completely different tests, and most people only know the income tax version.

Which means the clock on redesignating your account started the moment you left, not six months later when you finally sit down to sort out your finances. Keep running a resident savings account as a non-resident and you're in breach of FEMA the whole time, not from some future deadline you haven't hit yet.

The penalty structure is real, not theoretical: under Section 13(1) of FEMA, that can mean up to three times the amount involved where it's quantifiable, or up to two lakh rupees where it isn't, plus five thousand rupees a day for as long as the contravention continues.

What NRE actually is

NRE stands for Non-Resident External. It's built to hold money you earned outside India, your UK salary, savings you're moving over, anything foreign-sourced. Interest on an NRE account is completely tax-free in India under Section 10(4)(ii) of the Income Tax Act, and the whole balance, principal and interest both, is freely repatriable, no cap, no approval needed.

That tax-free part is where most guides stop, and where the real story is only half told.

Once you're a UK tax resident, HMRC taxes your worldwide income on the arising basis, which includes NRE interest, regardless of India treating it as exempt. You still have to declare it, on the Foreign pages of a Self Assessment return, and pay UK tax on it. India's tax-free treatment doesn't travel with you.

There's a narrower relief that barely anyone mentions: Article 24 of the UK-India tax treaty allows a notional tax credit of up to 15% against that UK liability, tax you never actually paid in India, but the treaty treats as if you had. It only applies for ten years from when the exemption was first granted on that specific deposit, and after that window closes, full UK tax applies with nothing to offset it.

What NRO actually is

NRO stands for Non-Resident Ordinary, and it's the one you need if you still have any income actually generated in India: rent from a flat you still own, dividends, a pension, the tail end of a salary that hadn't cleared before you left.

Unlike NRE, none of that is tax-free. NRO interest and any Indian-sourced income get taxed in India first, with tax deducted at source before the money even reaches you, and separately declared on whatever UK return you also have to file.

Repatriation out of an NRO account is capped at USD 1 million per financial year. That's a genuinely high ceiling for most people, so in practice it rarely binds, but it does mean the process isn't as simple as an NRE transfer. Moving money above a certain threshold requires a Chartered Accountant's certificate, Form 146, alongside your own declaration, Form 145, before the bank will send it anywhere. Whatever you don't use of that yearly allowance disappears at the end of the financial year rather than carrying forward.

Those forms used to be called 15CA and 15CB. The Income-tax Act 2025 renamed them from April 2026, so if you're reading advice that only mentions 15CA and 15CB, it was probably written before that changed.

How to actually redesignate

Tell your bank

Contact your bank's NRI desk, most major banks have one, and ask to convert your existing resident savings account to NRO, or open a fresh NRE and NRO pair if you'd rather start clean. You'll need proof of your new overseas address, a copy of your passport and visa, and in most cases a declaration of your new residential status. Processing typically takes a couple of weeks once the paperwork's in.

Move your accounts, don't just relabel one

Some banks convert your existing account in place; others ask you to close it and open new NRE and NRO accounts separately, since the two serve genuinely different purposes and can't be merged into one. Whichever your bank does, make sure any standing instructions, existing fixed deposits, and old cheque books tied to the resident account get moved or cancelled properly, since a redesignated account with old resident-account paperwork still attached is exactly the kind of loose end that causes problems at tax time. Once that's sorted, the new setup runs like any other bank account, direct debits and all.

Redesignate FDs too, not just the savings account

Fixed deposits opened while you were a resident need converting as well, not just the savings account sitting underneath them. Banks sometimes let existing FDs run to maturity under the old classification and convert only afterwards. Ask specifically, since this is the detail people miss most often.

Common mistakes

Nobody polices this in real time, which is exactly the problem. Banks do occasionally cross-check dormant resident accounts against passport and visa records, and the compliance gap doesn't disappear just because it hasn't been caught yet.

NRE's tax-free status in India doesn't travel. That's the confusion that catches people out most: assuming a status that holds in one country automatically holds in the other, when the two tax systems aren't talking to each other at all.

The USD 1 million cap belongs to NRO, not NRE. NRE money was never taxed in India, so there's nothing to cap, it's fully repatriable by design; NRO holds income that was taxed, which is exactly why a limit exists on moving it out.