Income Tax Department Updates Form 10-IEA FAQ: Late Filing Can Invalidate Old-Regime Option
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The Income Tax Department has refreshed its official FAQ on Form 10-IEA, highlighting several filing rules that can determine whether a taxpayer with business or professional income is able to use the old tax regime for a particular assessment year. The FAQ is marked as reviewed and updated on 18 August 2026.
The most important operational point is the deadline. The Department states that Form 10-IEA should be filed on or before the due date for filing the return under section 139(1) of the Income Tax Act, 1961. A form filed after the applicable due date is treated as invalid.
Who needs Form 10-IEA
The FAQ says the form can be filed by an individual, Hindu Undivided Family, Association of Persons other than a co-operative society, Body of Individuals and an artificial juridical person covered by section 2(31)(vii), where the taxpayer has income from business or profession.
For such taxpayers, Form 10-IEA is used when they want to opt out of the new tax regime or re-enter it, subject to the statutory rules. Taxpayers without business or professional income who file ITR-1 or ITR-2 generally do not need Form 10-IEA merely to exercise the regime option; the choice can be made through the return within the applicable due date.
Late filing can make the form invalid
The Department's FAQ is explicit that Form 10-IEA filed after the return due date will be treated as an Invalid Form. Where a taxpayer wanted to opt out of the new regime but failed to file Form 10-IEA within the due date, the FAQ says the taxpayer will not get the benefit of the old regime in that return.
If the form becomes invalid because it was filed after the due date, it can be filed afresh in a subsequent assessment year, subject to the applicable rules.
File Form 10-IEA before the income-tax return
The Department advises taxpayers to file Form 10-IEA before filing the income-tax return. The acknowledgement number and filing date of Form 10-IEA are required to be reported in the return, making the sequence important from a practical filing perspective.
Form 10-IEA is an online-only form. It can be e-verified using Aadhaar OTP, EVC or DSC, and an authorised representative can be added to file it on behalf of the taxpayer.
Business-income taxpayers cannot switch every year freely
The FAQ distinguishes business and professional taxpayers from persons without such income. A taxpayer with business or professional income who opts out of the new regime can continue with the old regime in later years without filing Form 10-IEA every year. However, if that taxpayer later re-enters the new regime using Form 10-IEA, the FAQ says the option to return to the old regime is generally not available again unless the taxpayer ceases to have business or professional income.
By contrast, taxpayers having income other than business or profession may switch between the regimes each year through their return, within the due date.
No revision after submission
Another important compliance point is that Form 10-IEA cannot be revised or modified after submission. The FAQ also says a filed form cannot be withdrawn in the same year. That makes the due-date selection and the regime choice especially important before submission.
What to check before filing
- Confirm whether the taxpayer has business or professional income and therefore needs Form 10-IEA.
- Identify the correct return due date under section 139(1).
- File Form 10-IEA before the applicable due date and preferably before filing the ITR.
- Verify the acknowledgement number and filing date for reporting in the return.
- Review the long-term effect of re-entering the new regime before submitting the form.
- Check the filed-form status on the e-Filing portal to ensure it is shown as valid.
Useful official links
Key takeaway
Form 10-IEA is not a routine annual form for every taxpayer. For taxpayers with business or professional income, timing and the direction of the regime switch matter. A late or incorrectly handled filing can affect old-regime eligibility, and the form cannot be revised after submission.
