The Centralised Processing Centre (CPC) issues an intimation under Section 143(1), Income Tax Act, 1961 after processing your income tax return. This intimation compares the details reported in your ITR with the records available to the Income Tax Department and highlights any mismatch in income, tax credits, deductions, or tax calculations. If the CPC proposes an adjustment based on these differences, you get 30 days to respond before it is finalised.
When that happens, you can request a correction through a rectification request under Section 154. This request allows you to correct mistakes apparent from the record, such as incorrect tax calculations, missing TDS credits, or mismatches caused by reporting errors. However, it must be filed within four years from the end of the financial year in which the intimation was issued, not from the date mentioned on the notice.
This guide explains how to identify errors in a Section 143(1) intimation, when rectification is the right option, and how crypto investors can submit the correct documents for issues involving wallet transfers, exchange reporting mismatches, or missing TDS details.
Key Takeaways
- A Section 143(1) intimation highlights differences between your filed ITR and the Income Tax Department’s records. For crypto investors, common mismatches include incorrect VDA gain calculations, missing TDS credits, wrong tax treatment, and unreported crypto income.
- If you agree with the adjustment mentioned in the intimation, you should pay the outstanding tax and applicable interest promptly. Correcting genuine filing errors through a revised return can also help maintain accurate tax records.
- If the adjustment is incorrect, you can file a rectification request under Section 154 for mistakes apparent from the record. The request must be filed within 4 years from the end of the financial year in which the intimation was issued.
- Crypto-related rectification requests require proper supporting documents, such as exchange records, Form 26AS details, and transaction history. Maintaining accurate records helps prove whether a mismatch resulted from reporting errors or incorrect CPC adjustments.
- Ignoring a Section 143(1) tax demand can lead to additional interest, recovery proceedings, and further compliance issues. Reviewing the intimation carefully and taking timely corrective action helps resolve discrepancies before they become bigger problems.
Understanding the Discrepancy in An Intimation Order
The intimation under Section 143(1) lists exactly where your filed return diverges from what the CPC’s automated system found in its own records. For crypto investors, most of these mismatches trace back to a handful of recurring gaps between what an exchange reports and what actually lands in your ITR. Here’s what typically triggers each type of adjustment:
Incorrect Crypto TDS Claims
Exchanges deduct 1% TDS under Section 194S on eligible crypto trades, but that credit sometimes reaches Form 26AS weeks after you file, or not at all if the exchange delayed its own TDS return. If you claimed TDS credit in your ITR, but it was missing from Form 26AS or AIS, the CPC disallows it and raises a demand for the “missing” tax. Cross-check Form 26AS against your exchange’s TDS certificate before filing, not after.
Arithmetic Errors on VDA Gains
Section 115BBH applies a flat 30% tax plus 4% cess on virtual digital asset gains, and a surprising number of mismatches come from investors applying 30% to the gain but forgetting the cess, or netting a loss from one token against a gain from another before computing tax. Since no deductions besides cost of acquisition are allowed, any manual adjustment beyond that gets flagged as an arithmetical error. Recomputing the gain exactly as reported, cess included, is the fastest way to catch this before the CPC does.
Incorrect Crypto Losses Set Off Against Other Income
Section 115BBH blocks any set-off of VDA losses against salary, business income, or gains from other assets, and it blocks carrying that loss forward entirely. If your ITR shows a crypto loss adjusted against unrelated income, the CPC disallows the claim automatically. This shows up most often when a trader who also has stock market losses assumes the same set-off rules apply to both.
Wrong Tax Rate Applied to VDA Income
Some filers report crypto gains under the applicable slab rate instead of the flat 30% under Section 115BBH, usually because tax software defaults to slab treatment for “other income” entries. The CPC’s system recomputes this automatically and raises the difference as a demand. Every VDA gain, regardless of holding period or amount, gets taxed at the same flat rate.
Airdrops, Staking, or DEX Income Missing From the ITR
AIS increasingly picks up crypto-linked bank credits, including proceeds from foreign exchange withdrawals and P2P settlements, even when the underlying DEX trade or staking reward itself isn’t visible to the department. If that credit appears in AIS but the corresponding income never made it into Schedule VDA, the CPC treats it as unreported income. Airdrops and staking rewards are taxable as income at the time of receipt, separately from any later capital gain on disposal.
Advance Tax Shortfall on Crypto Gains
Since VDA gains typically arrive during the year in a lump sum, from a single large sale or a token unlock, many investors skip advance tax entirely and pay everything at return filing. The CPC’s system checks paid challans against the tax computed and flags the gap, adding 1% monthly interest under Section 234B and Section 234C on top of the shortfall. If a single crypto transaction pushes your tax liability past INR 10,000 for the year, advance tax is due in instalments, not at filing.
What to Do If You Agree With the Discrepancy?
If you review the intimation and agree with the adjustments made by the Income Tax Department, the next steps are quite simple. Accepting the changes and taking prompt action ensures that the matter is resolved without further notice or penalty.
Paying the Tax and Interest
When the intimation shows a valid tax demand, pay the outstanding amount plus interest through Challan 280. Interest applies under the following sections:
Section | Applies When | Rate |
Return filed after the due date, tax still outstanding | 1% per month on unpaid tax | |
Advance tax paid was less than 90% of assessed tax | 1% per month from 1st April | |
Quarterly advance tax instalment missed or underpaid | 1% per month on that instalment’s shortfall | |
Demand under Section 156 unpaid 30 days after intimation | 1% per month from day 31 |
Note: From FY 2026-27 onward, advance tax payments move to ITNS 280, a separate process from the Challan 280 used for FY 2025-26 and earlier dues.
Filing a Revised ITR to Correct the Original Filing
Even though the intimation under Section 143(1) is not a final assessment order, you may still choose to file a revised ITR under Section 139(5) to correct the mistakes in your original return. This is especially useful if the errors relate to income disclosure, deduction claims, or tax computation. Filing a revised return helps maintain clean records and avoid issues during future assessments. For FY 2025-26, the deadline to file a revised return is available till 31st March 2027.
What to Do If You Disagree With the Discrepancy?
Sometimes, the adjustments made by the Centralised Processing Centre (CPC) may not reflect your actual records. If you believe that the intimation contains an obvious error, you have the right to correct it by filing a rectification request through the income tax portal.
File a Rectification Request
When you disagree with the discrepancy and identify a mistake apparent from the record, you can file a rectification request under Section 154. To begin, log in to the income tax portal using your PAN credentials and select the relevant intimation for correction.
Clearly mention the reason for your request and attach supporting documents, such as Form 16, Form 26AS, or investment proofs, wherever required. Once submitted, the Income Tax Department will review your request and, if the correction is accepted, issue an amended intimation. Note that you do not need to e-verify a rectification request.
How To File A Rectification Request Online for FY 2025-26?
Once you’ve identified a genuine error in the CPC’s adjustment, filing a rectification request under Section 154 takes place entirely on the e-Filing portal. The process below follows the exact steps to take to file a rectification request:
Step 1: Log on to the e-Filing Portal
Go to the e-Filing portal and log in with your PAN credentials.
Step 2: Open the Rectification Link
From the dashboard, go to the “Services” menu and click “Rectification.”
Step 3: Start a New Request
Click “+ New Request” to begin filing.
Step 4: Select the Assessment Year
Choose the assessment year as AY 2026-27, then click “Proceed.”
Step 5: Choose the Request Type
Select the option that matches your error:
- Reprocess the Return: For most crypto-related mismatches, such as a wallet transfer flagged as unreported income
- Tax Credit Mismatch Correction: When a crypto TDS credit under Section 194S doesn’t fully reflect in Form 26AS
- Return Data Correction (Offline): For corrections that require re-uploading return data
Step 6: Submit the Request
Review the details and submit. No e-verification is required for a rectification request.
Important Points to Remember While Filing a Rectification Request
Before submitting a rectification request, it is essential to understand a few legal and procedural rules that guide how such corrections are handled. These rules help ensure that your request is valid, timely, and supported by appropriate documentation.
Time Limit for Filing a Rectification
A rectification request under Section 154 must be submitted within four years from the end of the financial year in which the intimation was issued. Submitting the request beyond this window makes it legally invalid. Always check the date on your 143(1) intimation and count the four-year period from the end of that financial year, not from the date of the notice.
Scope of Rectification Under Section 154
You can only file a rectification request if there is a mistake apparent from the record. This means the error must be clear, self-evident, and should not require deep interpretation or debate. For example, mismatches in tax credits, basic calculation errors, or wrongly disallowed deductions may qualify, but differences in interpretation will not.
Revised Return vs Rectification Request
If you discover an error in your ITR before the department processes it, then filing a revised return is the right step. However, if you have already received a Section 143(1) intimation and the error is minor and factual, a rectification request is appropriate. A revised return corrects your filing, while rectification corrects the department’s processing of that filing.
Consequences of Not Responding to a Tax Demand
If you ignore the tax demand raised in the 143(1) intimation, the Centralised Processing Centre may finalise the adjustment and consider the amount due. This can lead to interest penalties, recovery actions, and even legal notices. It is always better to respond quickly, either by paying the dues or filing a rectification.
How Can KoinX Help With Crypto Tax Notices in India?
A Section 143(1) mismatch tied to crypto usually comes from two areas: a transaction that was misclassified in your records or a TDS credit that was not reflected in Form 26AS. Identifying the exact source of the error can become difficult when your activity spans multiple exchanges, wallets, and hundreds of transactions. Without a clear transaction trail, preparing a rectification request with the right supporting details becomes time-consuming and prone to further errors.
This is where KoinX helps simplify the process. As a global crypto tax platform trusted by over 1.5 million users, it connects with 800+ exchanges and wallets to organise your transaction history in one place. For Indian investors, here’s what KoinX offers:
Automatic Transaction Categorisation
Transactions are automatically classified by type, covering complex on-chain activity like staking, airdrops, and DeFi swaps, rather than left for manual tagging. This reduces the chance of income being miscategorised or dropped entirely, which is often the root cause of an AIS or Form 26AS mismatch flagged in a 143(1) intimation.
ITR-Ready Schedule VDA Reports
Once your transaction history reflects the correct TDS credits and gain calculations, KoinX generates a Schedule VDA report formatted for direct use in your ITR, giving you a clean figure to file a revised return or attach as supporting documentation to a Section 154 rectification request.
CA-Assisted Filing and Notice Support
For cases where the mismatch needs professional review, KoinX’s bundled plans combine your tax report with CA-assisted ITR filing, including support for responding to and rectifying a 143(1) intimation, so the correction and the filing happen through the same team instead of separately.
If a crypto data error or TDS mismatch is behind your 143(1) intimation, sign up on KoinX to reconcile your transaction history before you respond.
Conclusion
Dealing with an intimation under Section 143(1) is not always a sign of trouble, but it does demand timely attention and accuracy, especially if crypto transactions are involved. By understanding the notice, identifying the discrepancy, and taking the right corrective steps, you can stay compliant and stress-free.
KoinX helps you prepare clean and accurate crypto tax reports, resolve mismatches, and submit revised filings with ease. Don’t wait for minor errors to turn into major complications. Join KoinX today and take control of your crypto taxes before your next intimation arrives.
Frequently Asked Questions
Can I Rectify A Section 143(1) Intimation Without A Chartered Accountant?
Yes, you can file a rectification request yourself through the e-filing portal. The process is user-friendly and does not require a Chartered Accountant. However, if your case involves complex crypto transactions or multiple income sources, professional help may ensure better accuracy and reduce the chances of future discrepancies.
Can A Rectification Be Filed Multiple Times For The Same Year?
Yes, you can file multiple rectification requests for the same assessment year, provided each is for a different valid issue. However, once a rectification request is processed and resolved, a new one can only be filed if a fresh “mistake apparent from record” is identified in the processed order or intimation.
Can I Withdraw A Rectification Request After I've Submitted It?
No. Once filed, a rectification request stays open until a Rectification Order is passed; it cannot be withdrawn. If you’ve found an additional crypto-related error after submitting, you’ll need to wait for that order before filing a fresh request for the same assessment year and CPC order number.
Can I File A Rectification Request Offline Or On Paper?
No. For returns filed electronically and processed by CPC, the rectification request must be filed online through the e-Filing portal. This applies regardless of whether the correction relates to a crypto TDS mismatch, a misclassified transaction, or any other CPC adjustment.
Where Do I Find My Rectification Reference Number After Filing?
You’ll receive a 15-digit rectification reference number by email or SMS once the request is submitted. The same number will also be visible under “Rectification Status” after you log into your e-Filing account, which is the number your CA will ask for if they’re helping track the request.
Will I Receive A Fresh Intimation After Rectification?
Yes, if your rectification request is accepted and processed, the Income Tax Department will issue a fresh intimation reflecting the updated outcome. This could involve a corrected tax demand, refund, or acknowledgment of no further dues. You will receive it on your registered email and can also download it from the portal.
Can Rectification Requests Be Filed For Previous Years?
Yes, you can file a rectification request for any past year, provided it is within four years from the end of the financial year in which the original intimation was issued. If the time limit has passed, your only option may be to file a legal appeal, not a rectification.
