A lot of small business owners treat the GST registration threshold as a line to stay under indefinitely — as if being below ₹40 lakh (or ₹20 lakh for services) means GST simply doesn't apply to them. It's a trigger, not a permanent exemption, and treating it as the latter is where the actual risk starts.
The threshold is checked on a rolling basis, not once a year
Aggregate turnover for GST threshold purposes is tracked on a continuous, financial-year basis, not just at year-end. A business that crosses the threshold in month seven is liable to register from that point, not from the following April. Businesses that only check their turnover once a year, at filing time, often discover they crossed the line months earlier than they registered.
Certain triggers apply regardless of turnover
Inter-state supply, specific agency arrangements, and e-commerce sales through certain platforms can require GST registration even for a business well under the standard threshold. "I'm too small for GST" is only true if none of these specific triggers apply to how the business actually operates — not simply based on revenue.
What happens if registration is delayed past the trigger point
Operating without registration after crossing the threshold exposes the business to penalties and interest calculated from the date registration should have happened, not the date it actually occurred — meaning the cost compounds the longer the gap goes unnoticed.
If you're close to the GST threshold or unsure whether a specific trigger already applies to your business, C S Rushil & Co. can check your actual position. Book a free consultation.