GST Notice ASMT-14: Section 63 Best Judgement Assessment for Unregistered Persons and How to Reply

Most GST assessment and demand provisions assume the taxpayer has a GSTIN and files returns. Section 63 of the CGST Act 2017 is the exception. It empowers the Proper Officer to assess persons who were liable to register but did not obtain registration, and persons whose registration was cancelled under Section 29(2) but who continued to make taxable supplies, using best judgement based on available information. Before passing the assessment order, the officer must issue Form GST ASMT-14 under Rule 100(2) of the CGST Rules 2017, giving the person an opportunity to explain or contest the proposed assessment. If the explanation is unsatisfactory or no reply is filed, the officer passes Form ASMT-15, a best judgement assessment order determining the tax liability for the relevant periods. Section 63 carries a 5-year limitation period from the due date of the annual return for the relevant financial year, significantly longer than the 3-year window under Section 73 for non-fraud cases involving registered persons. The ASMT-15 demand includes tax at the applicable rate, interest at 18% per annum from the date of supply, and penalties under Section 122 of the CGST Act ranging from 10% to 100% of the tax demanded depending on whether fraud is alleged. This guide explains who receives ASMT-14, how officers detect unregistered taxable businesses, how to structure a reply, and how to challenge the ASMT-15 assessment if it overstates the liability.

What Is Form GST ASMT-14 and Who Receives It?

Form GST ASMT-14 is a pre-assessment notice issued by the Proper Officer under Rule 100(2) of the CGST Rules 2017 (the full rules are available on the CBIC website) before passing a best judgement assessment order for an unregistered person under Section 63 of the CGST Act. It is the procedural safeguard that gives the unregistered person an opportunity to explain why the proposed assessment is incorrect or why they should not be assessed at all. The officer cannot pass ASMT-15 without first issuing ASMT-14 and considering the reply, if any.

ASMT-14 is fundamentally different from the other ASMT series notices. ASMT-10 (return scrutiny under Section 61) targets registered persons with return discrepancies. ASMT-02 and ASMT-06 (provisional assessment under Section 60) are initiated by the registered taxpayer. ASMT-14 targets persons who are outside the GST registration system entirely, or who were inside it but had their registration cancelled while continuing to operate. The officer must locate, identify, and serve ASMT-14 on a person who has no GST portal account, no GSTIN, and no history of return filing.

The Section 63 assessment flow is:

Which 4 Categories of Persons Receive ASMT-14 Under Section 63?

Section 63 of the CGST Act applies to two primary categories, which in practice manifest as four distinct factual situations that generate ASMT-14 notices.

Category 1: Person Liable to Register Under Section 22 Who Did Not Register

A person whose aggregate annual turnover exceeds Rs. 20 lakh (Rs. 10 lakh for special category states listed in the CGST Act) is required to obtain GST registration under Section 22. A supplier who crosses this threshold but fails to register and continues to make taxable supplies is directly within Section 63’s scope. The most common factual profile: a small contractor, trader, or service provider whose business grew beyond the threshold without the owner realising that GST registration was mandatory, or who was aware but deferred registration to avoid compliance. Officers typically identify these persons through income tax return data showing turnover significantly above the GST threshold, combined with the absence of a GSTIN in the GST portal database.

Category 2: Person Required to Register Mandatorily Under Section 24 Regardless of Turnover

Section 24 of the CGST Act specifies categories of persons who must register regardless of turnover: inter-state suppliers of goods (no threshold applies); casual taxable persons; persons required to pay tax under reverse charge mechanism under Section 9(3); e-commerce operators; and persons required to deduct TDS under Section 51. A professional providing consulting services across state boundaries from Maharashtra to Tamil Nadu must register regardless of turnover. An e-commerce seller making even a single rupee of sales through a marketplace is required to register under Section 24(ix). Officers identify mandatory registration non-compliance through GSTN ecosystem data (TCS data from e-commerce operators, TDS returns for inter-state contractors, customs data for importers making taxable domestic supplies).

Category 3: Person Whose Registration Was Cancelled Under Section 29(2) Who Continued Making Supplies

Where a registered person’s GSTIN was cancelled by the Proper Officer under Section 29(2) (suo motu cancellation for non-filing of returns, non-commencement of business, or other grounds), and the person continued to make taxable supplies after the cancellation date without revocation, they are in the same legal position as an unregistered taxable person for the post-cancellation period. The REG-17 notice initiates this cancellation process. If revocation was not obtained (via REG-21 application) or was rejected (via REG-23), and supplies continued, Section 63 applies to the post-cancellation period. ASMT-14 is then issued for all periods from the cancellation date during which supplies were made.

Category 4: Composition Dealer Who Exceeded the Composition Threshold Without Migrating to Regular Registration

A registered composition taxpayer must migrate to the regular scheme when their aggregate turnover exceeds the composition ceiling (Rs. 1.5 crore for goods, or the applicable state-notified limit for services). A composition dealer who exceeds the threshold without filing CMP-04 (intimation of withdrawal) and GST REG-01 (fresh application for regular registration) is technically unregistered for regular GST purposes for all supplies beyond the threshold period. Officers identify this through GSTR-4 (composition annual return) data showing turnover exceeding the composition limit, combined with the absence of a transition to regular registration.

How Does the Proper Officer Detect Unregistered Taxable Persons?

Identifying persons who are making taxable supplies without registration requires the Proper Officer to look beyond the GST portal, which by definition contains no data on unregistered persons. Officers use seven main intelligence sources.

Income Tax Return Data

The most powerful data source is the income tax return (ITR). For proprietorships, partnerships, and individuals operating businesses, ITR schedules report gross receipts or turnover. The GSTN and Income Tax systems exchange data under the data-sharing framework established by the Central Board of Direct Taxes and CBIC. Where an ITR shows business income or professional receipts above the GST registration threshold, and the same PAN does not appear in the GST registration database, the person is flagged for ASMT-14 scrutiny.

TDS Data (Form 26AS and Annual Information Statement)

Where buyers deduct TDS under Income Tax Section 194C (contractors), 194J (professionals), or 194H (commission), the deductor reports these in TDS returns (Form 26Q, 24Q). The deductee’s Form 26AS shows all TDS credits. Where a person’s Form 26AS shows significant income from contracting or professional services, but they have no GSTIN, the officer issues ASMT-14 for the relevant financial years. This is particularly common for government contractors who receive TDS deductions from government departments but do not obtain GST registration.

E-Commerce Operator TCS Data (Section 52)

Every e-commerce operator (Amazon, Flipkart, Meesho, Snapdeal, Zomato, Swiggy) is required to collect TCS at 1% from supplies made through their platform and remit it to the government under Section 52 of the CGST Act. The operator also files GSTR-8 reporting the turnover of each seller and the TCS collected. GSTN matches GSTR-8 data against seller GSTINs. Sellers who appear in GSTR-8 but have no GSTIN in the system, or whose GSTIN is different from the PAN associated with the e-commerce account, are flagged for Section 63 assessment. Many small sellers on e-commerce platforms are unaware of their mandatory registration obligation under Section 24(ix).

ICEGATE and DGFT Import/Export Data

A person who imports goods is required to pay IGST at customs and is generally required to register under GST. ICEGATE (Customs EDI gateway) records all imports with the importer’s PAN. Where a person is shown as an importer in ICEGATE data but has no GSTIN in the GST system, they are flagged for potential Section 63 assessment. Similarly, exporters registered with DGFT but without a GSTIN are flagged, particularly where the export involves taxable domestic procurement.

Sector Intelligence and Third-Party Complaints

Officers in sectors with high unregistered-person prevalence (construction, hospitality, entertainment, small manufacturing) receive intelligence through sector surveys, complaints from registered competitors, information from revenue intelligence agencies, and inspections of commercial premises. A competitor who is registered and paying GST may file a complaint that a rival is operating without registration and undercutting on price (by not charging GST to customers). This triggers an ASMT-14 investigation.

Bank Account Data

Banks are required to report cash deposits and high-value transactions above specified limits (currently Rs. 10 lakh in savings accounts and Rs. 50 lakh in current accounts in a financial year) to the Income Tax Department under the Statement of Financial Transactions (SFT) framework. Where bank data shows recurring business-scale receipts into an account whose PAN has no associated GSTIN, the risk management system may flag the account holder for Section 63 assessment.

Post-Cancellation Supply Intelligence (For Category 3 Persons)

Where a person’s registration has been cancelled under Section 29(2), the officer responsible for the cancellation typically also monitors for post-cancellation supply activity. Signs of continued operation include: e-way bills generated from the cancelled GSTIN, invoices issued after the cancellation date, e-commerce sales continuing under the seller’s PAN, and TDS deductions recorded after the cancellation date. This monitoring generates ASMT-14 notices for the post-cancellation period.

How Do You Reply to Form GST ASMT-14?

Unlike ASMT-10 (which has ASMT-11 as the reply form) or ASMT-02 (which has ASMT-03), there is no specifically numbered reply form for ASMT-14. The reply is a written representation filed with the Proper Officer within the period specified in ASMT-14. The reply period is not fixed by statute: the officer sets it in the notice, typically 15 to 30 days. The person must respond within this period or request an extension with good reason before the deadline.

1. Read ASMT-14 and identify the exact basis for the proposed assessment. ASMT-14 specifies: the period for which assessment is proposed; the information sources the officer relied on (ITR, TDS data, e-commerce TCS data, bank data); the proposed turnover for each period; the applicable tax rate; the proposed tax demand; and interest at 18% per annum. List each element separately. Your reply must address every element: the turnover estimate, the taxability of the supplies, the applicable rate, and the interest calculation. Leaving any element unaddressed implicitly accepts the officer’s position on that element.
2. Gather and present your actual turnover data for the assessed period. The officer’s proposed turnover is a best judgement estimate based on indirect data (ITR total income, bank deposits, TDS credits). It is almost always overstated relative to taxable GST turnover, because: ITR income includes exempt income (agricultural income, exempt supplies, inter-state transfers to own branches not constituting a supply), bank deposits include loan proceeds and capital receipts, and TDS credits include deductions on payments that are not GST-taxable supplies (such as TDS on rent under Section 194I, or TDS on dividends). Present your actual GST-taxable turnover for each period with: your profit and loss account or sales register, bank statements with annotations identifying the nature of each receipt, ITR schedules showing which components are GST-taxable, and any supporting invoices or contracts.
3. Challenge the taxability of the supplies included in the officer’s estimate. Verify whether the supplies flagged by the officer are actually taxable under GST. Common categories of supply that are exempt or outside GST scope but appear in ITR or bank data: agricultural produce and services (exempt under Schedule I of the GST Act); salary or wages (not a supply); interest income on loans (exempt for individuals and non-banking entities); shares and securities transactions (securities are outside GST scope); immovable property rental for residential use (exempt); and services provided by a government entity in the discharge of its sovereign function (not a supply). If the officer’s proposed turnover includes exempt or non-taxable items, explicitly identify and quantify them in the reply with documentary proof.
4. Challenge the applicable tax rate if the officer has used an incorrect rate. The officer’s best judgement applies the tax rate based on the product or service category they believe the person was supplying. This rate may not correctly reflect the actual HSN classification: a civil contractor taxed at 18% (works contract for commercial construction) may have been doing government residential housing contracts taxable at 12% or 0% (affordable housing). A food service provider taxed at 18% may have been operating a standalone restaurant where supplies are taxable at 5%. Provide the correct HSN/SAC classification with supporting documents (contracts, licences, product specifications).
5. Consider voluntary registration and late filing as part of the reply strategy. Where the person genuinely should have registered but did not, the most credible reply combines: (a) a challenge to the officer’s turnover estimate (to reduce the assessed quantum), and (b) an offer to register and file late returns for all unregistered periods (to demonstrate good faith). Getting registered through the proper entity and GST registration process and filing GSTR-1 and GSTR-3B for the assessed periods provides the officer with accurate data for ASMT-15 (rather than relying on estimates) and may result in a significantly lower final demand. Voluntary payment of the admitted tax liability with 18% interest at this stage also demonstrates good faith, which is relevant to the penalty quantum in ASMT-15.
6. File the reply with the officer directly (or through the GST portal if a portal reference is available for the ASMT-14 notice) before the deadline. Since ASMT-14 is issued to a person who has no GSTIN, the notice may be served physically (at the business premises) or by email, rather than through the GST portal. The reply must be addressed to the officer specified in ASMT-14, with all supporting documents attached. Retain the filing receipt, acknowledgement of delivery, or email delivery confirmation as proof that the reply was timely filed.

What Happens After Your Reply: The ASMT-15 Best Judgement Order?

After considering the reply (if any), the Proper Officer passes the assessment order in Form ASMT-15 under Section 63(1) of the CGST Act. ASMT-15 is the definitive determination of the tax liability for the unregistered period at best judgement. It specifies the assessed turnover, the applicable tax rate, the tax demand, the interest calculation, and the penalty under Section 122.

When ASMT-15 May Not Be Passed

If the ASMT-14 reply demonstrates convincingly that: (a) the person’s aggregate turnover was genuinely below the registration threshold for all periods in question; (b) all the supplies identified by the officer were exempt or outside GST scope; or (c) the person had obtained registration (perhaps in a different state or under a different GSTIN) and the officer was comparing against the wrong registration, the officer may drop the proposed assessment without passing ASMT-15. While there is no formal “ASMT-12 equivalent” for Section 63 proceedings (unlike Section 61 scrutiny where ASMT-12 closes the matter), the officer has the administrative discretion not to pass an assessment order where the proposed basis for assessment has been fully refuted.

Contents of ASMT-15

ASMT-15 states: the assessment period, the assessed turnover for each period, the applicable CGST/SGST/IGST rates, the tax liability computed, the interest under Section 50(1) at 18% per annum from the date of supply to the date of ASMT-15, and the penalty under Section 122. The assessment order in ASMT-15 is the basis for the actual demand recovery and appeal.

Post-Cancellation Period: A Worked Example

A trader’s registration was cancelled on 1 January 2023 under Section 29(2) for failure to file 6 consecutive GSTR-3B returns (the GSTR-3A non-filing notice was ignored). The trader continued making taxable sales from January 2023 to December 2024. The officer identifies this through: e-way bills generated from the cancelled GSTIN (which still appears in e-way bill portal records), TCS from an e-commerce operator for sales during the post-cancellation period, and bank deposits consistent with continued trading activity. ASMT-14 is issued in March 2025 for the period January 2023 to December 2024 (24 months), proposing a turnover of Rs. 80 lakh (based on bank deposits) at 18% IGST = Rs. 14.4 lakh tax + 18% interest for each month’s amount from its supply date to March 2025. ASMT-15 is passed in May 2025 with the assessed liability. The trader’s best option at the ASMT-14 stage was to present actual sales records showing that the taxable turnover was only Rs. 50 lakh (the remaining Rs. 30 lakh being exempt agricultural produce sales and loan receipts), and propose the correct computation at 18% IGST = Rs. 9 lakh, reducing the assessment by Rs. 5.4 lakh tax.

How Is the Tax Liability Computed in a Section 63 Best Judgement Assessment?

The best judgement assessment methodology is by nature an estimation. The officer constructs the most defensible estimate of taxable turnover using the available data, applies the tax rate that the officer believes applies to those supplies, and computes interest from the date of supply. Understanding this methodology helps taxpayers identify where the estimate is most likely inflated and how to challenge it effectively in the ASMT-14 reply.

Step 1: Estimating Taxable Turnover

The officer starts with gross receipts from available data sources and then adjusts for non-taxable components.

Step 2: Applying the Tax Rate

The officer applies the tax rate that appears most consistent with the nature of the business identified. For a contractor, 18% is common (works contract); for a food service provider, 5%; for a trader of goods, the applicable HSN rate. The officer may not have detailed information about the product mix and may apply a single blended rate. If the actual supplies span multiple rates (some at 5%, some at 12%, some at 18%), the officer’s single-rate approach will produce an overstatement. In the reply, provide a product-wise or service-wise breakdown with the correct rate for each category.

Step 3: Interest Computation at 18% Per Annum

Interest under Section 50(1) runs at 18% per annum from the date each taxable supply was made to the date of payment. For a 2-year unregistered period with monthly supplies, the interest accumulates significantly. The officer typically computes interest from the midpoint of the assessment period (as a simplification) or from the beginning of the period (more conservative). If you have monthly supply data, computing period-wise interest from the actual supply dates will typically produce a lower total interest figure than the officer’s conservative estimate.

Step 4: Penalty Under Section 122

Section 122(1)(xi) of the CGST Act imposes a penalty on a taxable person who “fails to obtain registration even though liable to do so.” The penalty is the higher of: Rs. 10,000 per registration default, or 10% of the tax demanded (where the person was not aware of the registration requirement and there is no fraud). Where the officer concludes that the non-registration was deliberate (to evade GST), the penalty under Section 122(1)(i) and Section 122(2) can be up to 100% of the tax demand. This determination of fraud is the most consequential issue in an ASMT-14 proceeding: a non-fraud characterization limits penalty to 10%; a fraud characterization triggers 100% penalty and prosecution risk under Section 132.

What Are the Penalties and Prosecution Risks Under Section 63?

The penalty regime for unregistered persons under Section 122 is tiered based on intent. Understanding this hierarchy allows ASMT-14 respondents to frame their reply in a way that demonstrates the absence of fraudulent intent, limiting penalty exposure to 10% rather than 100%.

Non-Fraud Cases: 10% Penalty Minimum

Where the officer concludes that the non-registration was due to ignorance, oversight, or a genuine belief that the threshold had not been crossed, the penalty is the higher of Rs. 10,000 or 10% of the tax demanded. This is assessed per year of non-registration. For a 2-year unregistered period with a tax demand of Rs. 10 lakh per year (Rs. 20 lakh total), the 10% penalty would be Rs. 2 lakh (10% of Rs. 20 lakh), or Rs. 20,000 (Rs. 10,000 per year), whichever is higher: Rs. 2 lakh. Establishing the absence of fraudulent intent in the ASMT-14 reply is therefore essential to capping the penalty at 10%.

Arguments that support non-fraud characterization: the person registered promptly once the officer’s inquiry began (voluntary compliance); the person had a genuine belief that their income was below the threshold (the ITR showed total income slightly above Rs. 20 lakh but the majority was exempt agricultural income); the person is in a sector where GST obligations are poorly understood (agriculture, artisanal manufacture, small rural services); the person had no tax history suggesting deliberate evasion (no prior GST demand, no Income Tax evasion cases).

Fraud Cases: Up to 100% Penalty and Prosecution Risk

Where the officer finds evidence of deliberate suppression of supplies to avoid GST registration (such as issuing invoices in multiple names or family members’ names to keep each below the threshold, maintaining two sets of accounts, or systematically routing supplies through cash channels to avoid documentation), the penalty can reach 100% of the tax demanded. Additionally, Section 132(1)(b) of the CGST Act provides for prosecution of a person who evades payment of tax by failing to obtain registration, where the amount of tax evaded exceeds Rs. 1 crore (for first offense) or Rs. 5 crore (for cognizable, non-bailable offense). Prosecution under Section 132 can result in imprisonment of up to 5 years.

Frequently Asked Questions on GST Notice ASMT-14