System-Generated vs Officer-Initiated Proceedings: A Comprehensive Comparative Guide to Form GST DRC-01B and Form GST ASMT-13 Explaining Liability Mismatch Intimation and Best-Judgment Assessment for Non-Filers
1. Executive Summary
Both Form GST DRC-01B and Form GST ASMT-13 are compliance instruments under the Goods and Services Tax regime, but they serve fundamentally different purposes and are invoked under entirely different circumstances. While both may appear superficially related to ‘non-filing’ or ‘short payment’ scenarios, their legal foundations, procedural frameworks, consequences, and remedial mechanisms are distinctly different. This analysis provides a comprehensive examination of these two instruments to assist proper officers in making informed decisions about which instrument to deploy in specific circumstances.
2. FUNDAMENTAL DISTINCTION: THE CORE DIFFERENCE
The primary distinction between DRC-01B and ASMT-13 lies in the nature of the default being addressed:
| FORM GST DRC-01B | FORM GST ASMT-13 |
| For taxpayers who HAVE FILED BOTH GSTR-1 AND GSTR-3B but with DISCREPANCIES (Tax declared in GSTR-1 > Tax paid in GSTR-3B) | For taxpayers who have COMPLETELY FAILED TO FILE GSTR-3B returns (Non-Filers even after Section 46 notice) |
| Addresses: UNDER-REPORTING while having filed BOTH returns | Addresses: COMPLETE NON-FILING of GSTR-3B return |
3. CRITICAL CLARIFICATION: DRC-01B TRIGGER CONDITIONS
There is a common misconception regarding when DRC-01B is triggered. The following clarification is essential for proper understanding:
3.1 Pre-conditions for DRC-01B Trigger
DRC-01B is triggered ONLY when ALL of the following conditions are satisfied cumulatively:
- The taxpayer has FILED GSTR-1 for the relevant tax period.
- The taxpayer has ALSO FILED GSTR-3B for the same tax period (not Nil and not unfiled).
- The tax liability declared in GSTR-1 EXCEEDS the tax paid in GSTR-3B.
- The difference exceeds BOTH 20% AND Rs. 25 Lakhs (CUMULATIVE threshold – both conditions must be met).
- The system auto-detects this mismatch through the GST Portal analytics.
| ⚠️ IMPORTANT CLARIFICATION |
| DRC-01B is NOT applicable in the following scenarios:
(a) GSTR-1 filed but GSTR-3B NOT filed → Use ASMT-13 (Section 62 Best Judgment Assessment) (b) GSTR-1 filed but NIL GSTR-3B filed (when liability exists in GSTR-1) → Use ASMT-10/Section 73/74 (c) Mismatch exists but below threshold (less than 20% OR less than Rs. 25 Lakhs) → Use ASMT-10 scrutiny route (d) Neither GSTR-1 nor GSTR-3B filed → Use GSTR-3A notice followed by ASMT-13 |
3.2 Can DRC-01B be Issued Manually by Proper Officer?
No. It is NOT legally permissible for the Proper Officer to manually issue DRC-01B if the threshold is not met or if the system has not generated it.
The following legal and procedural reasons support this position:
- Rule 88C(1) specifically provides that intimation in DRC-01B shall be issued “electronically on the common portal” – indicating it is a SYSTEM-GENERATED mechanism, not a manual process.
- The threshold of 20% AND Rs. 25 Lakhs is PRESCRIBED by the GST Council (48th Meeting) and is embedded into the system logic under Rule 88C(1). The officer cannot override or bypass this statutory threshold.
- The phrase “as may be recommended by the Council” in Rule 88C(1) establishes that the threshold is a policy decision at the Council level, not a discretionary matter for individual officers.
- Manual issuance would violate the principle of uniform application of law across all taxpayers and may be challenged as arbitrary action.
3.3 Alternative Remedies for Mismatches Below DRC-01B Threshold
For mismatches that do not meet the DRC-01B threshold, the Proper Officer has the following alternative remedies available:
| ALTERNATIVE REMEDY | LEGAL PROVISION | WHEN TO USE |
| ASMT-10 Scrutiny Notice | Section 61 read with Rule 99 of CGST Rules | For any discrepancy in returns requiring explanation – no monetary threshold |
| DRC-01A Intimation | Rule 142(1A) of CGST Rules | Pre-SCN intimation to enable voluntary payment before formal proceedings |
| DRC-01 SCN under Section 73 | Section 73 read with Rule 142(1)(a) | For tax not paid/short paid without fraud – formal adjudication route |
| Section 75(12) Direct Recovery | Section 75(12) with Explanation read with Section 79 | For self-assessed tax (including GSTR-1 declared liability) remaining unpaid – NO THRESHOLD LIMITATION |
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| ✓ KEY INSIGHT: Section 75(12) – The Threshold-Free Alternative |
| The Explanation to Section 75(12) (inserted by Finance Act, 2021) clarifies that “self-assessed tax” includes tax payable in respect of outward supplies furnished under Section 37 (GSTR-1) but not included in the return under Section 39 (GSTR-3B). This provision has NO MONETARY THRESHOLD and enables direct recovery under Section 79 without issuing SCN under Section 73/74. This is the appropriate route for smaller mismatches where DRC-01B threshold is not met. |
4. LEGAL FRAMEWORK COMPARISON
The following table provides a detailed comparison of the statutory provisions governing each form:
| PARAMETER | DRC-01B | ASMT-13 |
| Governing Section | Section 75(12) read with Explanation, Section 79 of CGST Act, 2017 | Section 62 of CGST Act, 2017 |
| Governing Rule | Rule 88C of CGST Rules, 2017 | Rule 100 of CGST Rules, 2017 |
| Pre-requisite Notice | No prior notice required – System-generated intimation upon detection of mismatch | Notice in FORM GSTR-3A under Section 46 must precede ASMT-13 |
| Nature of Default | BOTH GSTR-1 AND GSTR-3B FILED but tax liability in GSTR-1 exceeds tax paid in GSTR-3B | GSTR-3B NOT FILED despite notice under Section 46 |
| Threshold for Trigger | Difference exceeding BOTH 20% AND Rs. 25 Lakhs (CUMULATIVE – both conditions must be satisfied) | No monetary threshold – Triggered by complete non-filing of return |
| Initiation Mechanism | ONLY System-generated by GSTN Portal – CANNOT be issued manually by officer | Manual assessment by Proper Officer based on Best Judgment |
| Time Limit for Issuance | System generates after GSTR-3B filing when mismatch exceeds threshold | Within 5 years from due date of annual return under Section 44 |
| Response Time | 7 days from date of intimation | 15 days to file return after GSTR-3A notice; If ASMT-13 issued, 60 days + additional 60 days (w.e.f. 01.10.2023) to file return for withdrawal |
| Recovery Provision | Direct recovery under Section 79 (bypasses Section 73/74 adjudication) | Recovery under Section 78/79 after expiry of 30-day period |
| Automatic Withdrawal | No automatic withdrawal provision – Reply must be accepted by officer | DEEMED WITHDRAWN if valid return filed within 60 days + additional 60 days (w.e.f. 01.10.2023) of service of ASMT-13 |
| Summary Form | Part A: Intimation; Part B: Taxpayer Reply | ASMT-13: Assessment Order; DRC-07: Summary of Demand |
| Officer’s Discretion | NONE – Threshold and issuance are system-controlled; Officer cannot manually issue or modify threshold | FULL – Officer exercises Best Judgment based on available material |
5. PURPOSE AND SPECIFIC APPLICATION SCENARIOS
5.1 When to Use DRC-01B (System-Generated Only)
Form GST DRC-01B is specifically designed to address the phenomenon of ‘fake billing’ or ‘invoice mills’ where taxpayers would declare higher outward supplies in GSTR-1 (enabling recipients to claim ITC) but report lower liability in GSTR-3B to reduce their tax payment. The system auto-generates DRC-01B when:
- The taxpayer has filed BOTH GSTR-1 AND GSTR-3B for the relevant tax period.
- The tax liability declared in GSTR-1 (outward supplies) exceeds the tax paid in GSTR-3B.
- The difference exceeds BOTH 20% AND Rs. 25 Lakhs (cumulative threshold as per 48th GST Council).
- The mismatch is detected through system analytics on the GST Portal – officer has no role in initiation.
5.2 When to Use ASMT-13 (Officer-Initiated)
Form GST ASMT-13 is deployed for Best Judgment Assessment when a taxpayer has completely failed to file returns despite statutory notices. The following conditions must be satisfied before issuing ASMT-13:
- The registered person has failed to furnish return under Section 39 (GSTR-3B) or Section 45 (Final Return).
- A notice in FORM GSTR-3A has been issued under Section 46 directing the taxpayer to file the return within 15 days.
- The taxpayer has failed to file the return even after the 15-day period from GSTR-3A notice.
- The Proper Officer proceeds to assess tax liability based on available material (GSTR-1, GSTR-2A/2B, E-way bills, inspection records, etc.).
- The assessment order is issued within 5 years from due date of annual return for the relevant financial year.
6. PROCEDURAL FLOW COMPARISON
The following table illustrates the step-by-step procedural flow for each instrument:
| STEP | DRC-01B PROCEDURE | ASMT-13 PROCEDURE |
| 1 | BOTH GSTR-1 and GSTR-3B filed by taxpayer for the tax period | System sends reminder 3 days before return due date |
| 2 | System detects mismatch between GSTR-1 and GSTR-3B exceeding BOTH 20% AND Rs. 25 Lakhs | After due date, system sends message to defaulter. 5 days later, GSTR-3A notice issued under Section 46 |
| 3 | Part A of DRC-01B auto-generated and intimation sent via portal/email/SMS – NO OFFICER INVOLVEMENT | Taxpayer gets 15 days to file return after GSTR-3A. If filed, proceedings dropped |
| 4 | Taxpayer must respond in Part B within 7 days with payment via DRC-03 OR explanation for difference | If return not filed within 15 days, Proper Officer proceeds with Best Judgment Assessment |
| 5 | If no reply: GSTR-1 for subsequent period BLOCKED until reply filed | Officer issues ASMT-13 based on GSTR-1, GSTR-2A/2B, E-way bills, and other available material |
| 6 | If reply unsatisfactory: Direct recovery under Section 79 without SCN under Section 73/74 | Summary uploaded in DRC-07. If valid return filed within 60 days + additional 60 days (w.e.f. 01.10.2023), ASMT-13 DEEMED WITHDRAWN automatically |
| 7 | No automatic withdrawal – Officer must examine and accept/reject explanation | If no return filed within 60 days + additional 60 days (w.e.f. 01.10.2023): Recovery under Section 78/79 initiated |
7. COMPARATIVE ADVANTAGES AND LIMITATIONS
| ASPECT | DRC-01B | ASMT-13 |
| Speed of Action | Immediate system-generated intimation; 7-day response window; No officer time required for initiation | Requires manual assessment; Officer can take comprehensive view of all available material |
| Recovery Mechanism | Direct recovery under Section 79 bypassing Section 73/74 adjudication – faster recovery | Order becomes final if return not filed within 60 days + additional 60 days (w.e.f. 01.10.2023); Recovery under Section 78/79 proceeds |
| Compliance Incentive | GSTR-1 blocking creates immediate compliance pressure on taxpayer | 30-day window to file return and get automatic withdrawal provides relief opportunity |
| Officer Workload | Minimal – System handles initiation, tracking, and blocking; Officer only examines reply | Significant – Requires manual assessment based on judgment; More officer time required |
| Officer Discretion | NONE for initiation – Threshold and issuance are system-controlled | FULL discretion in assessment based on available material |
| Natural Justice | Limited – Only 7 days to respond; No detailed hearing process | Built-in relief through automatic withdrawal provision; Appeal remedy available under Section 107 |
| Threshold Limitation | Only for mismatches exceeding BOTH 20% AND Rs. 25 Lakhs – smaller mismatches not covered | No monetary threshold – Applicable to all non-filers regardless of liability amount |
8. WHICH INSTRUMENT IS BETTER? – SITUATIONAL ANALYSIS
The question of ‘which is better’ is inappropriate as both instruments serve entirely different purposes and are not interchangeable. The correct question is ‘which instrument is appropriate for a given situation’. The following decision matrix assists in this determination:
| SCENARIO | APPROPRIATE INSTRUMENT |
| GSTR-1 shows Rs. 50 Lakh liability; GSTR-3B filed with Rs. 15 Lakh payment (mismatch >20% and >Rs.25L) | DRC-01B (System-generated) – Both returns filed with significant mismatch |
| GSTR-1 shows Rs. 10 Lakh liability; GSTR-3B filed with Rs. 5 Lakh payment (mismatch <Rs.25L threshold) | Section 75(12) read with Section 79 OR ASMT-10 scrutiny – DRC-01B threshold NOT met |
| GSTR-1 filed but GSTR-3B NOT filed for 3 consecutive months despite GSTR-3A notice | ASMT-13 – Complete non-filing of return; Best Judgment Assessment applicable |
| GSTR-1 filed showing liability but NIL GSTR-3B filed (both returns filed but Nil payment) | Section 75(12) + Section 79 OR DRC-01A/DRC-01 under Section 73 – NOT DRC-01B (Nil ≠ Mismatch for threshold) |
| Suspected fake billing case where seller shows high sales in GSTR-1 but pays less in GSTR-3B | DRC-01B (if threshold met) – Specifically designed for fake billing scenarios |
| Taxpayer is completely dormant – neither GSTR-1 nor GSTR-3B filed for extended period | GSTR-3A → ASMT-13 (for assessment) + Section 29(2) action (for registration cancellation) |
| Minor difference between GSTR-1 and GSTR-3B (below Rs. 25 Lakh OR below 20%) | ASMT-10 scrutiny route OR Section 75(12) direct recovery – DRC-01B NOT applicable |
9. RELEVANT CIRCULARS AND GUIDELINES
The following circulars and council recommendations provide authoritative guidance on these instruments:
| DRC-01B REFERENCES | ASMT-13 REFERENCES |
| 48th GST Council Meeting (17.12.2022) – Recommended threshold of BOTH 20% AND Rs. 25 Lakhs (cumulative) | Circular No. 129/48/2019-GST dated 24.12.2019 – Standard Operating Procedure for Non-Filers |
| Notification No. 26/2022-CT dated 26.12.2022 – Insertion of Rule 88C | Section 62 read with Rule 100 of CGST Rules – Best Judgment Assessment procedure |
| Instruction No. 1/2022-GST dated 07.01.2022 – Recovery of self-assessed tax under Section 75(12) | Section 46 and Rule 68 – GSTR-3A notice procedure before ASMT-13 |
| GSTN Advisory dated 29.06.2023 – Online functionality for DRC-01B compliance | Section 29(2) – Registration cancellation for persistent non-filers |
| Finance Act, 2021 – Insertion of Explanation to Section 75(12) expanding ‘self-assessed tax’ definition | Section 107 – Appeal remedy against ASMT-13 if return not filed within 60 days + additional 60 days (w.e.f. 01.10.2023). |
10. CONCLUSION AND RECOMMENDATIONS
Based on the comprehensive analysis above, the following conclusions and recommendations emerge for proper officers dealing with GST compliance enforcement:
- DRC-01B and ASMT-13 are NOT alternatives or substitutes for each other. They address fundamentally different compliance failures – mismatch in filed returns vs. complete non-filing.
- DRC-01B requires BOTH GSTR-1 AND GSTR-3B to be filed. If GSTR-3B is not filed (even if GSTR-1 is filed), ASMT-13 is the appropriate route after GSTR-3A notice.
- DRC-01B CANNOT be manually issued by the Proper Officer. It is exclusively a system-generated intimation based on prescribed thresholds. Any attempt at manual issuance would be legally unsustainable.
- The threshold for DRC-01B is CUMULATIVE – the mismatch must exceed BOTH 20% AND Rs. 25 Lakhs. If either condition is not met, DRC-01B will not be triggered.
- For mismatches below DRC-01B threshold, alternative remedies include: (a) Section 75(12) direct recovery (no threshold), (b) ASMT-10 scrutiny, (c) DRC-01A/DRC-01 under Section 73/74.
- ASMT-13 provides more comprehensive assessment capability as the officer can consider all available evidence and make best judgment determination of tax liability.
- For fake billing/invoice mill cases with significant mismatches, DRC-01B (when system-generated) is efficient as it was specifically designed to curb such practices.
- Proper officers should carefully analyze the nature of default before selecting the appropriate instrument to ensure procedural correctness and sustainability of recovery actions in appellate proceedings.
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Document prepared for reference purposes under GST Administration
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