GST Late Filing Fee Calculator

Beyond interest on late payment, the GST system also imposes late filing penalties for not submitting GSTR returns (GSTR-1 for suppliers, GSTR-3B for taxpayers) by the due date (20th of the next month). The penalty is calculated based on the GST amount in the delayed period: ₹100 per day for the first 30 days (max ₹5,000) and ₹300 per day thereafter (max ₹50,000 total for one return). A business that files 45 days late could face ₹9,500 in penalties. Unlike interest, these penalties are in addition to interest and cannot be recovered from customers. For businesses with poor compliance records, recurring late filing triggers GST audits and questions from tax authorities about overall business credibility. The combined impact of late filing penalties, interest on payment delays, and potential ITC denials makes timely compliance financially critical. Automating return filing processes through GST software is the most cost-effective strategy to avoid these penalties.