GST Notice ASMT-06: What It Seeks, How to Reply, and Navigating Provisional Assessment Finalization

When a registered taxpayer filed Form ASMT-01 requesting provisional assessment under Section 60 of the CGST Act 2017, received the provisional assessment order (ASMT-04) fixing a provisional tax rate or value, and has been filing returns accordingly, the process is not yet complete. Provisional assessment is inherently temporary. Section 60(4) of the CGST Act requires the Proper Officer to finalize the provisional assessment and pass a final order in Form ASMT-07 within six months of the provisional assessment order date, extendable by the Joint Commissioner and the Commissioner on sufficient cause. Before passing ASMT-07, the officer typically issues Form GST ASMT-06 under Rule 98(5) of the CGST Rules 2017, requesting the taxpayer to produce records, returns, and updated documentation needed to determine the final tax liability for the entire provisional period. This is the most consequential notice in the provisional assessment cycle: the information the taxpayer provides in reply to ASMT-06 directly shapes the ASMT-07 final order, which determines whether a differential tax payment with 18% interest per annum is owed, or whether a refund of excess provisional tax paid is due. This guide explains what ASMT-06 requests, how to frame a reply that protects your position, how ASMT-07 and the 18% interest are computed, and what to do if the officer is failing to finalize within the statutory period.

What Is Form GST ASMT-06 and Why Did You Receive It?

Form GST ASMT-06 is a notice for production of books of accounts and other records for the purpose of finalization of a provisional assessment under Section 60 of the CGST Act 2017. It is issued by the Proper Officer under Rule 98(5) of the CGST Rules 2017 (available in full on the CBIC website) after a provisional assessment order (ASMT-04) has been in place and the officer is ready to determine the final tax liability. Receiving ASMT-06 means the officer is initiating the finalization phase of your provisional assessment. This is a positive development: a finalized provisional assessment resolves the uncertainty that originally prompted you to file ASMT-01, and it allows you to release the security bond (ASMT-05) that has been held during the provisional period.

ASMT-06 is distinct from the earlier ASMT-02 notice in both timing and purpose. ASMT-02 is issued before the provisional assessment order to gather information that helps the officer set the provisional rate or value. ASMT-06 is issued after the provisional assessment order has been in force, to gather information that helps the officer determine what the final rate or value should have been for the entire provisional period. The financial stakes are higher at the ASMT-06 stage, because the officer’s determination directly quantifies the differential tax liability and the interest payable, if any.

The complete provisional assessment form flow, with ASMT-06 in context:

For a detailed explanation of the earlier stages (ASMT-01 through ASMT-05), including when to file ASMT-01, how to handle the ASMT-02 information request, and the security bond mechanics, see our GST Notice ASMT-02 guide. This article focuses exclusively on the finalization phase: ASMT-06 through ASMT-09.

At What Stage of Provisional Assessment Is ASMT-06 Issued?

ASMT-06 is issued when the Proper Officer determines that sufficient grounds exist to proceed with finalizing the provisional assessment. Four situations typically trigger ASMT-06:

Trigger 1: Resolution of the Underlying Dispute

The most common trigger is resolution of the classification or valuation uncertainty that originally caused the taxpayer to file ASMT-01. This resolution can come from: a High Court or Supreme Court judgment on the specific product or service category; an Authority for Advance Rulings (AAR) or Appellate AAR (AAAR) ruling on the same product by another taxpayer, which, while not directly binding, gives the officer a strong reference point; a CBIC circular clarifying the rate applicable to the disputed category; or a Goods and Services Tax Council recommendation formally settling the fitment question. Once this resolution arrives, the basis for provisional assessment no longer exists, and the officer issues ASMT-06 to gather the finalization records before passing ASMT-07 at the now-certain rate.

Trigger 2: Approaching the Section 60(4) Deadline

Section 60(4) requires finalization within 6 months of the provisional assessment order date. As this deadline approaches, officers who have not yet received a court order or CBIC circular resolving the underlying dispute must nonetheless initiate finalization using the best available information. ASMT-06 is issued to gather current records before the deadline expires.

Trigger 3: New Information Available to the Officer

Officers sometimes receive information from other government sources that allows them to determine the correct classification or value independently: customs classification data for the same product imported by the taxpayer, income tax assessment information about the taxpayer’s related-party pricing, or industry survey data on comparable transaction values. When such information arrives, the officer issues ASMT-06 to give the taxpayer an opportunity to present their own records before ASMT-07 is passed.

Trigger 4: Taxpayer Requests Finalization

A taxpayer who has resolved the underlying dispute (for example, received a favorable AAR ruling or obtained a new Advance Pricing Agreement from CBDT for their related-party transactions) may proactively write to the Proper Officer requesting finalization at the correct rate. In response, the officer typically issues ASMT-06 to formally collect records before passing ASMT-07. This is the most favorable path: the taxpayer controls the timing and can present the resolution evidence in a structured way before ASMT-06 is even issued.

What Information Does ASMT-06 Typically Request for Finalization?

ASMT-06 is a targeted notice: the officer asks for the specific records needed to determine the final tax liability for the provisional period. The content varies depending on whether the original dispute was about classification (rate of tax) or valuation (value of supply). However, certain categories of information appear in almost every ASMT-06.

Returns and Payment Records for the Provisional Period

The officer will typically request copies of all returns filed during the provisional period: GSTR-1 (outward supply details), GSTR-3B (monthly/quarterly self-assessed return), GSTR-9 (annual return, if any annual return period falls within the provisional period), and the payment challans (PMT-06 or DRC-03) confirming the tax paid at the provisional rate. Providing a consolidated statement showing each return period, the provisional rate applied, the value of supplies, and the tax paid at the provisional rate makes it easy for the officer to compute the differential without errors.

Updated Classification Evidence (for Rate Disputes)

Where the provisional assessment was triggered by classification uncertainty, ASMT-06 asks for updated evidence of the correct classification: the current product test certificate from an NABL-accredited laboratory; any updated regulatory licence or certification (CDSCO, FSSAI, BIS); the court judgment, CBIC circular, or AAR/AAAR ruling that has since resolved the classification question; and any updated customs classification or CTH entry used for the same product in import declarations after the provisional assessment period. The taxpayer should also provide a clear explanation of how the resolution evidence maps to the product’s classification for the entire provisional period, including any periods before the resolution arrived where the correct rate is now retroactively determinable.

Updated Valuation Data (for Valuation Disputes)

Where provisional assessment was triggered by valuation uncertainty (related-party transactions, post-supply price revisions, complex bundled pricing), ASMT-06 asks for: updated transfer pricing documentation (Form 3CEB and the Transfer Pricing Order from the Income Tax authorities for the relevant assessment year, if already passed); the final agreed pricing between the parties for the provisional period; any Advance Pricing Agreement (APA) executed with CBDT covering the related-party transactions during the provisional period; and the method used to determine the final value with supporting calculations.

Reconciliation Statement

The most important document to prepare for ASMT-06 is a comprehensive reconciliation statement covering the provisional period. This should include for each tax period: the value of supplies, the provisional rate applied, the provisional tax paid, the proposed final rate, the tax that would be payable at the final rate, and the differential (positive or negative). This reconciliation should be period-wise (month or quarter) so that the officer can compute interest accurately: interest under Section 50(1) runs from the date of each payment, not from the date of ASMT-07, so a period-wise reconciliation is essential for accurate interest quantification.

Additional Records Frequently Requested

• Sample invoices: Representative invoices from the provisional period showing the supplies, rate applied, HSN/SAC codes, and tax amounts charged to customers.
• E-way bills: Where applicable, e-way bills for supplies during the provisional period, confirming the commodity described at the time of supply.
• E-invoices (for applicable taxpayers): The IRN-linked e-invoices for the provisional period, which embed the HSN and rate used at the time.
• Buyer communications: Any correspondence with buyers about the classification or rate dispute, including credit notes or debit notes issued to buyers if the provisional rate differed from what buyers expected.
• GST audit reports: GSTR-9C or GST audit observations relating to the provisional period, if a statutory audit has been completed.

How Do You Reply to GST ASMT-06 to Protect Your Position?

Unlike ASMT-02 (which has a defined reply form in ASMT-03), ASMT-06 does not have a separately notified reply form. The reply is filed through the portal’s notice reply function linked to the ASMT-06 reference under Services > User Services > View Notices and Orders on the GST portal. The reply is a document submission combined with a legal position paper arguing for the correct final rate or value. The quality of this reply directly shapes ASMT-07.

1. Identify every information request in ASMT-06 and confirm the reply deadline. Create a numbered list of each document or record requested. Confirm the deadline: the officer sets the time period in ASMT-06, and unlike the 90-day rule for ASMT-04, there is no statutory minimum reply period for ASMT-06. If the deadline is unreasonably short (less than 15 days for a complex provisional period spanning multiple years), write to the officer requesting an extension and document the request in writing. Officers routinely grant reasonable extension requests at the ASMT-06 stage.
2. Prepare the period-wise reconciliation statement as the centrepiece of your reply. This is the single most important document. Tabulate every tax period within the provisional assessment period, showing: taxable value, provisional rate, provisional tax paid (with challan number and date), proposed final rate, tax payable at final rate, and differential. Use the proposed final rate that is most supportable under the resolution evidence. If the correct final rate is the same as the provisional rate (because the officer set a conservative provisional rate that turned out to be correct), the reconciliation will show zero differential, which is the optimal outcome.
3. Present the resolution evidence prominently and explain how it applies to each tax period. The resolution evidence is the document (court judgment, CBIC circular, AAR ruling) that has settled the underlying uncertainty. Present it as Exhibit A in your reply. Explain explicitly how the ruling maps to your product or transaction, and why it supports the proposed final rate for all periods of the provisional assessment. If the resolution only clarifies rates from a prospective date (for example, a CBIC circular effective from 1 October 2024), address how earlier periods should be treated and provide reasoning.
4. Address the interest exposure for each period where a differential exists. If your reconciliation shows a differential (final rate higher than provisional rate), compute the estimated 18% interest per period using the formula: Differential Tax x 18% per annum x (Number of days from payment date to proposed ASMT-07 date / 365). Show this calculation transparently. Presenting your own interest computation builds credibility with the officer and reduces the risk of an inflated interest demand in ASMT-07 based on incorrect assumptions about payment dates.
5. Propose payment terms for the differential in the same reply. If a differential is due, state in the reply that you are ready to pay it upon receipt of ASMT-07, or offer to voluntarily deposit it in the electronic cash ledger under DRC-03 immediately, to stop further interest from accruing. A voluntary DRC-03 payment before ASMT-07 is passed stops the interest clock under Section 50(1) from the date of the DRC-03 payment, reducing total interest exposure. Reference this explicitly in your ASMT-06 reply.
6. File the reply before the deadline and preserve the acknowledgement. Upload all documents as numbered PDF exhibits corresponding to the references in your reply text. Submit before the ASMT-06 deadline and retain the portal acknowledgement number, timestamp, and a PDF of the submitted reply with all exhibits. This record is essential if the ASMT-07 order is challenged on appeal.

What Happens After Your Reply: The ASMT-07 Final Assessment Order?

After reviewing your ASMT-06 reply and the records provided, the Proper Officer passes the final assessment order in Form ASMT-07. This order is the definitive determination of the tax liability for the entire provisional assessment period at the finally determined rate or value. It supersedes the provisional ASMT-04 order and creates the actual tax obligation for the period.

Contents of ASMT-07

ASMT-07 specifies: (a) the final rate of tax or the final value of supply, as the case may be, for each supply category covered by the provisional assessment; (b) the total taxable value of supplies during the provisional period; (c) the total tax payable at the final rate; (d) the total tax already paid at the provisional rate; (e) the differential tax payable or refundable; (f) the interest payable under Section 50(1) on any underpaid differential, period-wise from the date of each provisional payment; and (g) directions regarding the security bond (ASMT-05) and the process for release or application of the security.

Three Possible Outcomes of ASMT-07

Return Amendments After ASMT-07

ASMT-07 creates an obligation to amend returns for the entire provisional period. For outward supply returns (GSTR-1), amend the HSN/SAC code or rate for the relevant supplies for each period within the amendment window. For GSTR-3B, the differential tax is paid via DRC-03 (voluntary payment) or through the regular return cycle. Where the provisional assessment covered IGST supplies with place-of-supply implications, the amendment must also correctly allocate the final tax between IGST and SGST/CGST as appropriate. Buyers who received invoices at the provisional rate and claimed ITC accordingly must be informed: if the final rate is higher, they can claim additional ITC on the differential; if the final rate is lower, they must reverse the excess ITC claimed.

Where ASMT-07 results in a refund of excess provisional tax paid, the refund process is governed by Section 54. If the refund claim is rejected at any stage, our guide on Form RFD-08 explains how to respond to a refund rejection show cause notice.

How Is 18% Interest Calculated on the Provisional Assessment Differential?

Interest under Section 50(1) of the CGST Act accrues at 18% per annum on the differential tax that was not paid during the provisional assessment period. Three features of this interest calculation surprise taxpayers at the ASMT-07 stage.

Feature 1: Interest Runs from the Date of Each Provisional Payment

Interest does not run from the date of ASMT-07. It runs from the date on which tax for each individual period was due and paid at the provisional rate. Since the provisional assessment typically covers multiple months or quarters, there are multiple interest start dates, one for each tax period. The interest for the April 2024 period differential runs from the due date of the April 2024 GSTR-3B payment; the interest for the May 2024 differential runs from the May 2024 due date; and so on. This period-wise computation means the total interest on a 12-month provisional assessment is significantly higher than a single blended calculation would suggest, because early periods have accumulated more months of interest by the time ASMT-07 is passed.

Feature 2: Voluntary DRC-03 Payment Stops the Interest Clock

A taxpayer who voluntarily deposits the estimated differential tax using Form DRC-03 before ASMT-07 is passed stops the interest clock from the date of the DRC-03 payment. This means that if you know from your ASMT-06 reply that a differential is likely, depositing the estimated differential immediately (without waiting for ASMT-07) significantly reduces the interest liability. For each period, the interest on that period’s differential runs from the GSTR-3B payment date to the DRC-03 deposit date, not to the ASMT-07 date. This is one of the most underutilized cost-reduction strategies in provisional assessment management.

Worked Example: Period-wise Interest Calculation

A pharmaceutical company had a provisional assessment at 5% IGST from April 2024 to September 2024 (6 months). ASMT-07 is passed in March 2025 determining the correct rate was 12% IGST. No DRC-03 payment was made during the provisional period.

Total exposure: Rs. 43,60,000 differential tax + Rs. 4,83,394 interest = approximately Rs. 48,43,394. If the company had made a DRC-03 payment on 1 October 2024 (when it received the CBIC circular confirming the 12% rate), the interest for all periods after October 2024 would have been saved. For example, September 2024’s differential interest would run only 11 days (20 October to 1 October is actually not applicable; let me reconsider). If DRC-03 was deposited on 1 October 2024, interest for April 2024 would run from 20 May 2024 to 1 October 2024 = 134 days (not 300 days). The interest saving from a timely DRC-03 in this example exceeds Rs. 2 lakh. This illustrates the value of proactive DRC-03 payment as soon as the differential becomes quantifiable. To understand how return non-compliance during the provisional period can compound these issues, see our GSTR-3A reply guide for the non-filing notice context.

What If the Officer Is Not Finalizing Your Provisional Assessment?

Section 60(4) of the CGST Act imposes a mandatory 6-month deadline on the Proper Officer for finalization of provisional assessment from the date of the ASMT-04 provisional order. Extensions require specific approval from the Joint Commissioner (for a further 6 months) and the Commissioner (for further periods on sufficient cause). Indefinite delay is not permitted. However, in practice, provisional assessments have remained unfinalized for years because the underlying dispute has not been resolved, officers face workload constraints, or the jurisdictional authorities have not escalated extension requests through the proper channel.

When Delay Benefits the Taxpayer

Delay in finalization is not always adverse to the taxpayer. If the provisional rate is higher than the final rate expected (that is, the officer set a conservative provisional rate, and the correct final rate is actually lower), continuing the provisional period means continuing to pay at the higher rate, which creates a larger refund claim when ASMT-07 is eventually passed. In this case, a taxpayer should still push for finalization: a refund pending for years has its own working capital cost, and Section 56 interest on delayed refunds (6% per annum) may not fully compensate for the opportunity cost of the excess payments. File ASMT-08 proactively after ASMT-07 to accelerate the refund process.

When Delay Is Adverse to the Taxpayer

If the provisional rate is lower than the expected final rate, delay is adverse: interest under Section 50(1) continues to accrue at 18% per annum on the differential for every additional day ASMT-07 is not passed. A DRC-03 voluntary payment stops this interest accrual regardless of whether ASMT-07 has been passed. If the underlying dispute is resolved and the correct rate is known, making a DRC-03 voluntary payment at the differential rate immediately stops the interest clock, even if the officer takes months more to pass ASMT-07. This is the single most effective tool for managing interest exposure during a delayed finalization.

How to Escalate an Overdue Finalization

• Step 1: Write to the Proper Officer after 5.5 months from the ASMT-04 date (two weeks before the 6-month deadline), citing Section 60(4) and the upcoming statutory deadline, and requesting that ASMT-07 be passed or that a formal extension request be made by the officer to the Joint Commissioner.
• Step 2: If the 6-month deadline passes without ASMT-07 or an extension order, write to the jurisdictional Joint Commissioner citing the breach of Section 60(4) and requesting that either the extension be formally granted or the officer be directed to pass ASMT-07 within 30 days.
• Step 3: If escalation within the department is unsuccessful, a writ petition before the High Court directing the officer to pass ASMT-07 within a specified period is the appropriate judicial remedy. High Courts routinely grant such writs for unexplained administrative delays in statutory time-bound proceedings.
• Step 4: Consider a DRC-03 voluntary payment at the estimated differential rate to stop interest accrual, regardless of the status of the escalation. The DRC-03 deposit is independent of the ASMT-07 passage and provides immediate interest relief.

Frequently Asked Questions on Form GST ASMT-06