GST Audit will apply every year for those GST registered business (GSTIN) having turnover more than Rs 2 crores, by the sale of goods or services in the financial year. Audit under GST involves examination of records, returns and other documents maintained by a GST registered person. It also ensures correctness of turnover declared, taxes paid, refund claimed, input tax credit availed and assess other such compliances under GST Act to be checked by an authorized expert. Turnover based Audit, Normal audit/General Audit, Special Audit etc are the types of audit.