Executive summary
The single most important thing to understand about GST penalties: three separate charges apply together, not as alternatives to each other.
- Late fee, interest, and penalty are three independent layers that stack — paying one doesn't reduce or substitute for the others.
- Section 122 of the CGST Act is the general penalty provision covering registration failures, non-filing, and incorrect tax collection.
- Section 74A (replacing the old Section 73/74 split from FY 2024-25 onwards) determines which penalty tier applies, based on whether fraud or wilful misstatement is involved.
- Voluntary, pre-notice disclosure generally accesses a meaningfully lower penalty tier than waiting to be caught.
Three layers, stacking independently
This is the concept most often misunderstood — each layer answers a different question, and all three can apply to the same period simultaneously.
| Layer | What it answers | Typical basis |
|---|---|---|
| Late fee | Were you late filing the return itself? | Per day, per return, capped |
| Interest | How long has the tax gone unpaid? | 18% per annum, calculated daily on the unpaid tax |
| Penalty | Was there a registration failure, non-filing pattern, or misstatement? | Tiered under Sections 122 and 74A, based on conduct |
Section 122 — the general penalty provision
The baseline penalty provision most non-compliance scenarios fall under.
For a foreign OIDAR supplier, the most relevant scenarios are operating without registration despite being liable, and filing failures once registered. Both fall within Section 122's scope, separately from the interest that accrues on any unpaid tax underlying those failures.
Section 74A — how the tier is determined
This is the provision that actually decides how severe your penalty is, once Section 122 establishes that a penalty applies at all.
In practice, most foreign OIDAR non-compliance we see is genuine unawareness rather than deliberate evasion — a company simply didn't know OIDAR applied to their specific service, or assumed a threshold existed that doesn't. This distinction matters enormously for which end of the penalty range applies, which is exactly why demonstrating good faith through timely, complete voluntary disclosure — covered next — can materially change the outcome.
Why voluntary disclosure changes the outcome
This is the single highest-leverage decision available to a company that discovers it should have been registered and wasn't.
The interest on unpaid tax accrues either way — voluntary disclosure doesn't reduce interest, since that's tied purely to how long the tax went unpaid, not to intent. What it changes is the penalty layer specifically, which is often the largest single variable in total exposure. See our penalty calculator to model both scenarios for your own numbers.
Practical checklist
- Assume all three layers (late fee, interest, penalty) apply together, not as alternatives
- Model your exposure under both a voluntary-disclosure scenario and a wait-and-see scenario, using our calculator
- Treat voluntary, complete, pre-notice disclosure as the higher-leverage option in almost every case
- If a notice has already arrived, see our Notice Response Guide for the specific response process
Glossary
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