Filing an ITR Without Paying Self-Assessment Tax: Consequences

An ITR may be filed without paying self-assessment tax, but the unpaid amount can trigger interest, demand, penalty and recovery action.

What is self-assessment tax?

Self-assessment tax is the balance income tax payable after adjusting the taxpayer’s available tax credits and payments, such as:

• Tax deducted at source (TDS)
• Tax collected at source (TCS)
• Advance tax
• Relief for taxes paid outside India
• MAT or AMT credit, where applicable 
• Other eligible tax credits

The amount payable may also include interest under sections 234A, 234B or 234C and late-filing fee under section 234F, wherever applicable.

Can you file an ITR without paying self-assessment tax?

Yes, the portal may technically allow the return to be submitted by using the “Pay Later” option or by proceeding without immediate payment. However, portal acceptance should not be treated as permission to postpone the statutory payment obligation.

Section 140A(1) requires the taxpayer to pay the following before furnishing the return:

• Balance income tax payable;
• Interest for delayed filing, where applicable;
• Interest for default or deferment of advance tax; and
• Applicable filing fee.

Is an ITR defective if self-assessment tax is not paid?

At present, an otherwise valid return is not treated as defective merely because self-assessment tax was not paid before filing.

Earlier, clause (aa) of the Explanation to section 139(9) provided for defective-return treatment where self-assessment tax and related interest had not been paid before filing. The Finance Act, 2016 omitted that clause with effect from 1 April 2017, applicable from Assessment Year 2017–18.

Consequences of filing an ITR without paying self-assessment tax

1. The taxpayer may be treated as an assessee in default

Under section 140A(3), failure to pay the whole or any part of the self-assessment tax, interest or fee results in the taxpayer being treated as an assessee in default for the unpaid amount.

2. Interest under section 234B may continue to increase

Section 234B generally applies where the taxpayer was liable to pay advance tax but either did not pay it or paid less than 90% of the assessed tax.

Interest is generally charged at 1% per month or part of a month on the applicable advance-tax shortfall. Consequently, the amount shown as payable on the original filing date may increase if payment is made later.

3. Interest under section 234A may apply where the return is filed late

Section 234A is linked to delay in filing the return, not merely to delay in paying self-assessment tax.

• If the ITR is filed within the applicable due date, section 234A does not arise solely because self-assessment tax remains unpaid.
• If the ITR is filed after the applicable due date, interest is generally charged at 1% per month or part of a month on the applicable outstanding tax amount for the prescribed period.

Late-filing fee under section 234F may also apply where the return itself is filed after the due date.

4. Interest under section 234C may remain payable

Section 234C applies where the prescribed advance-tax instalments were not paid or were paid below the required percentages.

Payment of self-assessment tax after the financial year does not retrospectively remove a section 234C liability that has already arisen. The exact amount depends on the taxpayer’s income pattern, advance-tax instalments and statutory exceptions.

5. CPC may raise an outstanding demand

While processing the return under section 143(1), the Centralised Processing Centre gives credit for taxes and eligible reliefs actually available in the taxpayer’s account.

If self-assessment tax disclosed in the return has not actually been paid or credited, the intimation may show an outstanding demand together with recalculated interest.

6. Further interest may arise after a demand becomes payable

Once a notice of demand is issued, the amount is ordinarily required to be paid within 30 days from service of the notice, unless a shorter period is validly specified.

If the demand is not paid within the permitted period, interest under section 220(2) may apply at 1% for every month or part of a month for the prescribed period.

7. A future refund may be adjusted against the demand

Under section 245, the tax authority may adjust a refund against an outstanding amount after giving the taxpayer written intimation of the proposed adjustment.

8. Penalty and recovery proceedings may follow

Section 221 permits penalty proceedings in cases of default, subject to the statutory conditions and the taxpayer’s opportunity to explain the default. Payment after filing reduces the outstanding amount and further interest exposure, but does not automatically eliminate every consequence that may already have arisen.

9. A later appeal may face an additional procedural obstacle

Section 249(4) ordinarily requires payment of the tax due on the income returned before an appeal under the relevant provisions can be admitted.

Which interest or fee may apply?

What should you do if the ITR has already been filed without payment?

How to respond if CPC has already raised a demand

Log in to the Income Tax e-Filing portal and open:

Review the demand and select the option that matches the facts:

• Demand is correct and not yet paid;
• Demand is correct and already paid; or
• Demand is incorrect in full or in part.

Where payment is required, the portal provides a “Pay Now” option linked to the demand. Where payment has already been made, enter the required challan details and submit the appropriate response.

Income-tax Act, 1961 versus Income-tax Act, 2025

The Income-tax Act, 2025 came into force on 1 April 2026. However, the applicable law for self-assessment tax depends on the year to which the income relates, not merely on the date on which payment is made.

Common mistakes to avoid

Treating “Pay Later” as a statutory extension

The “Pay Later” option is a portal facility. It does not amend the payment requirement under the applicable tax law.

Assuming that successful filing means there is no default

Portal acceptance confirms submission of the return. It does not establish that the admitted tax liability has been discharged.

Paying only the amount shown on the original filing date

Interest may have increased by the actual date of payment. The liability should be recalculated before generating the challan.

Selecting Tax Year 2026–27 for income earned in FY 2025–26

For self-assessment tax relating to FY 2025–26, select Assessment Year 2026–27 under the Income-tax Act, 1961. Tax Year 2026–27 under the Income-tax Act, 2025 relates to income earned during FY 2026–27.

Using the wrong payment category after a demand is raised

Where CPC has already raised a demand, use the payment and response workflow linked to the outstanding demand instead of making an unrelated payment that may not be automatically matched.

Ignoring the demand-response step after payment

Payment alone may not close the demand in every case. Submit the appropriate response and verify that the portal has given credit for the payment.

Frequently asked questions

Can I submit my ITR first and pay self-assessment tax later?

The portal may technically allow submission, but section 140A requires payment of the balance tax, applicable interest and fee before furnishing the return. Delayed payment can result in interest, demand and other consequences.

Will the ITR become invalid or defective?

Non-payment of self-assessment tax alone does not presently make an otherwise valid return defective. However, the taxpayer may still be treated as an assessee in default for the unpaid amount.

Can self-assessment tax be paid after filing the return?

Yes. Payment can be made through the e-Pay Tax facility. The taxpayer must then ensure that the challan is correctly reflected against the return or the outstanding demand.

Which minor head should be selected for self-assessment tax?

Minor Head 300 is generally used for self-assessment tax. If a formal outstanding demand has already been raised, use the payment option linked to that demand or the applicable demand-payment category.

Does filing the return on time stop section 234B interest?

Not necessarily. Section 234B concerns default in payment of advance tax. Filing the return and paying the tax are separate events for this purpose, and the applicable interest may continue according to the statutory calculation rules.

Can a future income-tax refund be adjusted against the unpaid amount?

Yes. Subject to the prescribed process, a refund may be adjusted against an outstanding demand after intimation to the taxpayer.

Which Act applies to self-assessment tax for AY 2026–27?

Self-assessment tax for AY 2026–27, relating to income earned during FY 2025–26, continues to be governed by section 140A of the Income-tax Act, 1961.

Conclusion

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