The particular notice determines the relevant failure
CGST section 123 addresses failure to furnish a required section 150 information return within the period specified in a subsection (3) notice. Its stated penalty is ₹100 per continuing-default day, capped at ₹5,000, subject to the proper officer's direction. Checked on 28 October 2026, this guide distinguishes that route from ordinary return late fees and from an information order under section 151. It does not invent a currently prescribed information-return form or universal filing population. ICAI GST Act(s) and Rule(s), April 2026: CGST sections 123 and 150.
Establish the underlying requirement
Section 150(1) identifies the stated record-maintaining persons and contemplates prescribed periods, time, form, manner and authority. A notice-response file must identify the actual legal requirement and person rather than assume that every business has the same periodic information return. Preserve the applicable prescription, service record and the complete notice. If that foundation is disputed, record the dispute and obtain a legal conclusion before labelling an internal estimate an assessed penalty. ICAI GST Act(s) and Rule(s), April 2026: CGST sections 123 and 150.
Separate defective-return correction
Under subsection (2), the stated defect intimation gives thirty days to rectify, or a further period allowed on application. Failure within the relevant period results in treatment as not furnished. Preserve the defect, correction submission and any actual extension. An extension application is not the same as an allowed extension. Do not apply the subsection (3) maximum period to a subsection (2) defect intimation simply because both concern the same return. ICAI GST Act(s) and Rule(s), April 2026: CGST sections 123 and 150.
Read the non-filing notice's actual period
Subsection (3) permits the stated authority to serve a notice requiring the return within a period not exceeding ninety days from service. Ninety days is a maximum, not a guaranteed extra ninety days in every case. Record the period actually specified and verify its legal validity. The date illustrations exclude the event date and assume no applicable special extension; they are raw calendar models, not universal holiday-adjusted deadlines. ICAI GST Act(s) and Rule(s), April 2026: CGST sections 123 and 150.
Reconcile default days and the ceiling
Build due date, actual compliance date, disputed days and accepted continuing-failure days as separate fields. Apply ₹100 to the legally established default-day count, then the ₹5,000 cap. Do not automatically append another SGST amount, a GSTR late fee or a general penalty to this isolated central provision. Any separate exposure requires its own applicable legal basis and process. ICAI GST Act(s) and Rule(s), April 2026: CGST sections 123 and 150.
Keep calculation and imposition distinct
Section 123 says the proper officer may direct the penalty. A capped arithmetic model is not itself a direction, an adjudication or a conclusion that every procedural defence is unavailable. Preserve the actual proceeding, response, service and compliance evidence. Reconcile the amount in an actual order against the correct default and avoid reusing a section 151 information-request calendar as though it were a section 150(3) notice. ICAI GST Act(s) and Rule(s), April 2026: CGST sections 123 and 150.
Applicable primary references
ICAI GST Act(s) and Rule(s), April 2026: CGST sections 123 and 150
Six worked illustrations
All facts and amounts below are fictional. Assumptions describe the model, not additional statutory rules.
Illustrative example 1: Defect-correction calendar
Assume a valid subsection (2) defect intimation dated 1 October 2026, no extension and the stipulated event-date-excluded count. Thirty days gives 31 October 2026. This is not automatically the separate section 123 notice-default start date.
Illustrative example 2: Actual notice period, not automatic ninety days
Assume a valid subsection (3) notice served on 1 September 2026 expressly gives sixty days. The stipulated calendar target is 31 October 2026. Treating the maximum ninety days as the granted period would instead produce 30 November, thirty days later.
Illustrative example 3: Ten established failure days
Assume all section 123 prerequisites and ten continuing-default days are independently established. The isolated calculation is 10 × ₹100 = ₹1,000, subject to the actual direction and process.
Illustrative example 4: At the cap boundary
Assume fifty legally established failure days. The uncapped amount ₹5,000 equals the cap; the section 123 model amount is ₹5,000.
Illustrative example 5: Beyond the cap
Assume eighty established failure days. Uncapped ₹8,000 is restricted to ₹5,000, a ₹3,000 ceiling reduction. It is not ₹5,000 plus another daily amount under the same calculation.
Illustrative example 6: Correction of the day population
Assume an initial working counted forty days but actual service/compliance evidence establishes thirty-two. The corrected uncapped amount is ₹3,200 instead of ₹4,000, a ₹800 difference. Both are below the cap; the correct day evidence still matters.
Ten-step verification table
| Step | Action | Evidence |
|---|---|---|
| 1 | Identify the legal requirement | Section 150 population and actual prescription |
| 2 | Verify the person and return | Notice identity and required information |
| 3 | Classify the communication | Defect intimation or subsection (3) non-filing notice |
| 4 | Preserve service and dates | Complete document and delivery evidence |
| 5 | Check actual allowed time | Thirty-day defect route or specified notice period |
| 6 | Verify any extension | Actual allowance, scope and revised date |
| 7 | Establish continuing-failure days | Due/compliance dates and disputed-day analysis |
| 8 | Calculate the central-provision exposure | ₹100 per established day and ₹5,000 ceiling |
| 9 | Review actual proceedings | Direction, response and applicable process |
| 10 | Reconcile closure and other exposures separately | Filing proof, final amount and independent legal bases |
Sixteen practitioner FAQs
1. Is this an ordinary GSTR late-fee calculation?
No. The guide isolates section 123's section 150 information-return default.
2. Does it automatically apply to every information request?
No. Distinguish section 150 from section 151 and identify the actual legal route.
3. Does the article invent a prescribed form number?
No. Identify the actual applicable prescription and document in the case.
4. What period does the defect provision state?
Thirty days, or the further period actually allowed on the stated application.
5. Does merely applying for extension establish allowance?
No. Preserve the actual decision and its scope.
6. What is the subsection (3) period limit?
The period specified must not exceed ninety days from service.
7. Does every notice therefore grant ninety days?
No. Read the actual notice; a shorter valid period can be specified.
8. Is the defect-intimation date automatically the section 123 trigger?
No. Section 123 refers to failure within the subsection (3) notice period.
9. What is the stated daily amount?
₹100 for each day of the established continuing failure.
10. What is the stated ceiling?
₹5,000 under this central provision.
11. Can the same calculation exceed that ceiling through more days?
No. Apply the cap after calculating the day-based amount.
12. Does the cap make service evidence irrelevant?
No. Correct classification and days determine whether and how the provision applies.
13. Is a spreadsheet itself a penalty order?
No. Keep calculation distinct from the proper officer's actual direction and process.
14. Should another State-tax amount be doubled automatically?
No. Establish any separate liability under its own applicable law.
15. Can a section 151 response calendar be reused blindly?
No. Its order-specific requirement is distinct from this notice route.
16. What proves completion?
Actual return/correction submissions and the relevant proceedings and liability status, supported by records.
Conclusion
Distinguish defect correction from a non-filing notice, use the actual notice period and calculate the section 123 exposure only on the established default days.