Understanding Form 10-IEA for ITR-3: When Is It Required and How to File It?

Choosing between the old and new tax regimes can sometimes be confusing, especially for taxpayers who have income from business or profession and are required to file ITR-3.

One form that becomes particularly important in such cases is Form 10-IEA.

With the new tax regime being the default regime from Assessment Year (AY) 2024-25 onwards, taxpayers having business or professional income cannot simply select the old tax regime in their ITR-3. If they want to opt out of the new regime and continue under the old regime, they generally need to file Form 10-IEA within the prescribed time.

What is Form 10-IEA?

Form 10-IEA is a declaration prescribed for eligible taxpayers having income from business or profession who want to exercise their option regarding the new tax regime under Section 115BAC.

In simple words, it is the form through which a taxpayer filing ITR-3 can communicate:

“I do not want to be taxed under the default new tax regime; I want to continue with the old tax regime.”

The form can also become relevant later when a taxpayer who had opted for the old regime wants to re-enter the new tax regime.

Form 10-IEA was introduced from AY 2024-25 onwards.

Who needs to file Form 10-IEA?

Form 10-IEA is relevant for individuals, HUFs and certain other specified persons who have income under the head “Profits and Gains of Business or Profession.”

For an individual or HUF filing ITR-3, the key question is therefore:

Do you have business or professional income, and do you want to choose a regime different from the default new tax regime?

If yes, Form 10-IEA may be required.

For example, assume a proprietor has income from a consultancy business and is filing ITR-3. The new tax regime is the default. If the taxpayer wants to claim eligible deductions and exemptions available under the old regime and therefore wants to be taxed under the old regime, Form 10-IEA needs to be furnished within the prescribed time.

Why is Form 10-IEA important in ITR-3?

This is where many taxpayers make mistakes.

A taxpayer may select “Old Tax Regime” while preparing ITR-3 and assume that this alone is sufficient.

For taxpayers having business or professional income, that is not the correct approach.

The taxpayer first needs to exercise the option through Form 10-IEA, and the relevant acknowledgement number and filing date are then required while filing the ITR.

The Income Tax Department itself advises that Form 10-IEA should preferably be filed before filing the income-tax return, because the acknowledgement number and date of filing are required to be reported in the ITR.

What happens if Form 10-IEA is not filed?

If a taxpayer having business or professional income wants to opt for the old tax regime but does not furnish Form 10-IEA within the prescribed time, the taxpayer may not be able to validly exercise the option for the old regime for that assessment year.

The Department's FAQ specifically states that Form 10-IEA must be filed on or before the due date applicable for filing the return under Section 139(1). If filed after the due date, the form is treated as invalid.

Therefore, Form 10-IEA should not be treated as a form that can simply be filed whenever convenient after completing the ITR.

Is Form 10-IEA required every year?

This is another common area of confusion.

Suppose a taxpayer with business income opted out of the new tax regime and selected the old tax regime in an earlier assessment year by filing Form 10-IEA.

If the taxpayer simply wants to continue with the old tax regime in the following year, a fresh Form 10-IEA is generally not required every year.

However, if the taxpayer wants to withdraw the old-regime option and re-enter the new tax regime, Form 10-IEA becomes relevant again.

This is particularly important because taxpayers with business or professional income have restrictions on switching between the two regimes.

What if I want to re-enter the New Tax Regime?

Suppose a taxpayer filed Form 10-IEA in an earlier year and opted for the old tax regime.

Later, the taxpayer decides that the new tax regime is more beneficial.

In that situation, the taxpayer can use Form 10-IEA to exercise the “Re-entering into the New Tax Regime” option, subject to the applicable conditions.

The Income Tax Department states that for eligible taxpayers having business or professional income, the option to withdraw the old-regime choice and re-enter the new regime is available only once in the manner prescribed.

This is why taxpayers should not treat the choice casually. Once the re-entry option is exercised, the consequences can affect the taxpayer's ability to switch regimes in subsequent years.

How to file Form 10-IEA?

Form 10-IEA is filed electronically through the Income Tax e-Filing portal.

The general process is:

1. Log in to the Income Tax e-Filing portal.
2. Go to e-File → Income Tax Forms → File Income Tax Forms.
3. Search for Form 10-IEA.
4. Select the relevant Assessment Year.
5. Select whether you are exercising the option to opt out of the new tax regime or re-enter the new tax regime, as applicable.
6. Provide the required information.
7. Complete the declaration.
8. Submit and e-verify the form.

The Department allows e-verification through methods such as Aadhaar OTP, EVC or DSC, depending on the taxpayer's circumstances.

What details are required in ITR-3 after filing Form 10-IEA?

After Form 10-IEA has been filed, the taxpayer needs to ensure that the corresponding details are correctly reported in ITR-3.

The current ITR-3 contains specific questions relating to Form 10-IEA and the taxpayer's earlier tax-regime choices.

For example, the ITR-3 asks whether the taxpayer has filed ITR-3/ITR-4 and Form 10-IEA within the due date in an earlier assessment year for choosing the old tax regime. It also asks for relevant Form 10-IEA acknowledgement details where applicable.

This means that the Form 10-IEA acknowledgement number and filing date should be kept safely after submission.

A simple example

Let's take a simple example.

Mr. A is a proprietor and files ITR-3.

For AY 2026-27, the new tax regime is the default regime. After comparing his tax liability, Mr. A feels that the old tax regime is more beneficial because of the deductions and exemptions available to him.

Mr. A therefore:

Step 1: Files Form 10-IEA within the prescribed due date.

Step 2: Receives the acknowledgement number after successful filing.

Step 3: While preparing ITR-3, provides the required Form 10-IEA details.

Step 4: Selects the appropriate old-regime option in the return.

The important point is that filing Form 10-IEA and correctly reporting its details in ITR-3 go hand in hand.

What if the taxpayer later wants the New Tax Regime?

Now assume that Mr. A chooses the old regime in AY 2026-27 but, in a subsequent assessment year, finds that the new regime is more beneficial.

Since he has business income, he cannot treat the regime choice in the same way as a taxpayer having only salary, interest or other non-business income.

He would need to follow the prescribed procedure for re-entering the new tax regime through Form 10-IEA.

The Income Tax Department specifically distinguishes business cases from non-business cases because taxpayers having business/professional income have more restricted regime-switching options.

Form 10-IEA vs simply selecting the regime in ITR

This distinction is worth remembering:

The Income Tax Department confirms that taxpayers without business/professional income can generally switch regimes directly through the ITR, whereas business/profession taxpayers have to follow the Form 10-IEA procedure.

A common mistake to avoid

One of the most common mistakes is filing the ITR-3 first and assuming that Form 10-IEA can be dealt with later.

Although the Department's FAQ discusses filing the form in relation to the ITR, it specifically advises taxpayers to file Form 10-IEA before filing the return, because the acknowledgement number and date are required in the ITR.

Therefore, the safer practical sequence is:

Check regime → File Form 10-IEA, if applicable → Note acknowledgement number → Prepare ITR-3 → Enter Form 10-IEA details → File ITR-3.

Final takeaway

For taxpayers filing ITR-3, Form 10-IEA is an important part of the tax-regime selection process.

If you have business or professional income and want to move away from the default new tax regime and choose the old regime, Form 10-IEA must be filed within the prescribed time.

And if you have previously opted for the old regime and subsequently decide to return to the new regime, Form 10-IEA is again relevant for exercising the re-entry option.

The biggest takeaway is simple:

Don't look at Form 10-IEA and ITR-3 as two completely separate compliance requirements. The information filed in Form 10-IEA needs to flow correctly into the ITR-3.

A small mistake in the form, acknowledgement number, filing date or regime selection can create validation errors or result in the intended tax regime not being accepted.

For this reason, taxpayers with business or professional income should decide their tax regime carefully before filing ITR-3 and complete Form 10-IEA, wherever required, within the applicable due date. ITR Filing