Form 10-IEA: Opting Out of the New Tax Regime (Form 10-IE Is Obsolete)

If you have business or professional income and you want to be taxed under the old regime, choosing it in the return is not enough. You have to file Form 10-IEA first, and you have to file it on time. Miss the date and the old regime is simply not available to you for that year, whatever the return says.

Form 10-IE is no longer the relevant form. It applied to earlier years. From assessment year 2024-25 onwards the form is Form 10-IEA, and the direction of travel has reversed: the new regime is now the default, so the form is used to opt out of it rather than into it.

Who has to file it

Form 10-IEA is required from an individual, HUF, association of persons, body of individuals or artificial juridical person who:

• has income under the head profits and gains of business or profession, and
• wants to be taxed under the old regime rather than the default new regime.

Who does not have to file it

A taxpayer with no business or professional income does not file Form 10-IEA at all. A salaried person, a pensioner, someone with only house property income, capital gains or interest simply selects the regime in the return itself, and can do so afresh every year.

This distinction is the whole of the matter, and it is where most of the confusion sits. Salaried people are often told they must file the form. They must not; there is nothing for them to file.

The deadline is the hard part

Form 10-IEA must be filed on or before the due date for filing the return. A form filed after that date is invalid, and an invalid form means no old regime benefit for the year, even if the return is otherwise filed on time and claims old regime deductions.

There is a second trap here. If you file your return late, you have missed the due date, and with it the ability to opt out. A business taxpayer intending to use the old regime therefore cannot afford a late return at all, because the cost is not just a late fee — it is the whole regime.

You cannot revise or withdraw it in the same year

Form 10-IEA cannot be revised, and once filed it cannot be withdrawn within the same year. If you file it and then discover the new regime would have been better, you are committed for that year.

This is why the computation has to come before the form, not after. Work out the tax under both regimes on your actual figures, then file the form only if the old regime genuinely wins.

Switching back later

Having opted out, a business taxpayer may return to the new regime in a later year by filing the form again for that year. But the right to move back and forth is restricted, not open-ended, and once the option to opt out has been exercised and then withdrawn, the ability to opt out again is limited.

The practical consequence is that a business taxpayer should treat this as a multi-year decision rather than an annual one. Model the position over the expected life of the deductions — a home loan that runs another twelve years, for example — rather than optimising a single year.

What the form asks for

• Name, PAN and address of the taxpayer
• Date of birth or date of incorporation
• Status, and confirmation that there is income under the head profits and gains of business or profession
• The assessment year for which the option is being exercised
• Whether the taxpayer has any unit in an International Financial Services Centre, and the details if so
• A declaration

How to file it

1. Log in to the income tax e-filing portal.
2. Go to e-File, Income Tax Forms, File Income Tax Forms, and select Form 10-IEA.
3. Select the assessment year and confirm the basic information.
4. Complete the declaration and the IFSC unit question.
5. Verify — by digital signature certificate or electronic verification code, depending on your status — and submit.
6. Note the acknowledgement number. It has to be quoted in the return.

See our guide to the e-filing portal if you need help getting as far as the forms menu.

Then file the return consistently

The return must be filed under the regime the form selects, and the acknowledgement number of the form quoted in it. A mismatch between the form and the return generates a processing difference and, usually, a demand.

Before you file the form at all

Ask whether the old regime actually wins. The new regime slabs have widened considerably and the rebate now takes total income up to twelve lakh out of tax entirely. Many business taxpayers who opted out routinely in earlier years would now be better off staying in the default.

See our slab rate comparison for tax year 2026-27 for the current figures under both regimes.

Get the decision modelled properly

For a business taxpayer this is a decision with consequences beyond the current year, and it is not freely reversible. We compute both regimes, model the effect across the years the deductions actually run, file the form where it is worth filing, and file the return consistently with it.

See business tax filing, income tax filing, and virtual CFO where the decision interacts with how the business is structured. Book a call.

Forms, deadlines and switching rules in this area have changed more than once. Confirm the current requirement on the income tax portal before filing, and take advice on your own circumstances.