An outstanding tax demand on the income-tax e-filing portal can be unsettling, especially when it relates to a year you thought was closed. The good news is that many such demands arise from mismatches, unprocessed credits or old orders that were later reduced, and the portal gives you clear ways to agree, disagree or correct them.
This guide walks through how to find out where a demand came from, how to respond on the portal, when a rectification under section 154 is the right tool, and how to stop a disputed demand from being adjusted against your refund.
Key takeaways
- Every demand flows from an order or intimation, so the first step is to identify that document and the tax year it relates to.
- The Response to Outstanding Demand facility lets you confirm, partly accept or disagree with a demand, with reasons.
- Section 154 of the Income-tax Act 1961 covers mistakes apparent from the record; its counterpart under the Income-tax Act 2025 is section 287.
- A rectification is ideal for clear errors like missing TDS credit or wrong interest; disputes on merits usually need an appeal.
- Responding promptly helps protect future refunds from being adjusted against a demand you do not owe.
Step 1: Find out where the outstanding tax demand came from
Log in to the e-filing portal and open Pending Actions > Response to Outstanding Demand. Each entry shows the assessment year, the section under which the demand was raised, the demand reference number, the date and the amount, including interest.
Common sources of a demand include:
- An intimation under section 143(1) after processing of your return, for example because TDS was not credited or a deduction was disallowed.
- An assessment order under section 143(3) or 147 after scrutiny or reassessment.
- Interest under sections 234A, 234B or 234C computed differently from your return.
- TDS/TCS defaults from processed statements, for deductors.
- Old manual demands that were never updated after an appeal or rectification.
Download the underlying order or intimation and compare it line by line with your return. If the demand came from a processing adjustment, our guide on section 143(1) intimations explains how to read it.
Step 2: Choose the right response on the portal
Once you know the cause, submit a response against each demand entry. The portal offers three broad options:
| Your position | Portal option | What to provide |
|---|---|---|
| The demand is correct | Demand is correct | Pay through the tax payment facility; the demand is closed once the challan is mapped |
| Part of it is correct | Demand is partially correct | Pay the accepted part; give reasons for the balance |
| The demand is not payable | Disagree with the demand | Select the reason and give details |
Typical reasons for disagreement include: the demand has already been paid (with challan details), it was reduced or deleted by a rectification or appellate order, an appeal is pending, a stay has been granted, or a rectification application is pending. Attach or quote the relevant order numbers and challan identification numbers wherever the form asks for them.
This response is not a legal remedy in itself; it places your position on record and alerts the Assessing Officer or CPC. The actual correction still happens through rectification, appeal or updating of records.
Step 3: When section 154 rectification is the right route
Section 154 allows an income-tax authority to rectify any mistake apparent from the record. It suits errors that are obvious and do not need a long debate or fresh evidence. Examples:
- TDS or advance tax paid but not given credit.
- An arithmetic error in computing tax or interest.
- A deduction or relief shown in the return but ignored while processing, where the facts are already on record.
- A demand that should have been reduced after an appellate order but was not.
Filing a rectification with CPC
For returns processed by CPC, go to e-File > Rectification, select the assessment year and the latest order, and choose the request type. The options include re-processing of the return, tax credit mismatch correction and return data correction. Where the correction needs changes to return data, you upload corrected data in the prescribed schema.
Filing with the Assessing Officer
Where the demand arises from an assessment order passed by the Assessing Officer, the rectification application is addressed to that officer, generally online through the e-proceedings facility, with a clear note of the mistake and the supporting records.
Time limits to keep in mind
Under the 1961 Act, rectification can generally be made within four years from the end of the financial year in which the order was passed. Once an application is made, the authority is expected to pass an order within six months from the end of the month in which it was received. The Income-tax Act 2025 carries these rules forward in sections 287 and 288, and the old provisions continue to govern orders for earlier years.
Step 4: Protect your refund from adjustment
If you are due a refund for another year, the department may propose to adjust it against an outstanding demand. Before doing so, CPC normally sends a prior intimation and gives you an opportunity to respond. This is exactly why an early disagreement matters: if you have already recorded that the demand is paid, reduced or under appeal, the adjustment can be avoided or reversed.
When you receive such an intimation:
- Check whether the demand is genuinely payable.
- Respond within the time allowed, selecting agreement or disagreement with reasons.
- Keep screenshots and acknowledgement numbers of your response.
When an appeal is better than rectification
If the demand arises from a disagreement on law or facts, such as the treatment of a receipt, a disallowance after scrutiny or a valuation issue, a rectification will usually be rejected because the mistake is not “apparent”. In that case, an appeal before the Commissioner (Appeals) is the appropriate route, and a stay of demand can be requested while the appeal is pending. Our guide to filing an appeal in Form 35 explains the process and timelines.
A simple checklist before you respond
- Download the order or intimation behind each demand.
- Match TDS credits with Form 26AS or the annual information statement for that year.
- Collect challans for taxes already paid.
- Gather any appellate or rectification orders that reduced the demand.
- Decide: pay, rectify, appeal, or a combination.
- Record your response on the portal and save the acknowledgement.
Frequently asked questions
How do I check my outstanding tax demand?
Log in to the income-tax e-filing portal and open Pending Actions, then Response to Outstanding Demand. It lists each demand with the year, section, amount and reference number.
Does disagreeing with a demand cancel it?
No. It records your position and alerts the department. The demand is actually reduced only through a rectification order, appellate order or by mapping taxes already paid.
What is the time limit to file a rectification under section 154?
Generally, rectification can be made within four years from the end of the financial year in which the order sought to be amended was passed.
Can my refund be adjusted against an old demand?
Yes, but you are normally given prior intimation and a chance to respond. Replying on time with reasons and documents helps protect the refund.
If an outstanding tax demand is showing on your portal, our income-tax team can help you trace its source and choose the right response, rectification or appeal.
This article is general information based on the law as of September 2026, and is not legal or tax advice. Please check the facts of your own case with a professional before acting.