Recordkeeping obligations require registered persons to maintain specified accounts and face audit and assessment consequences. Every registered person must maintain true and correct accounts at the principal place of business documenting production, inward and outward supplies, stock, input tax credit availed, output tax payable and paid and other prescribed particulars; accounts for multiple places must be kept at the relevant places and electronic maintenance is permitted. Warehouse operators and transporters must keep prescribed records of consignor and consignee. The Commissioner may require additional accounts or permit alternative maintenance for certain classes. Specified turnover thresholds trigger mandatory audit and submission of audited accounts and reconciliation; failure to account enables determination of tax on unaccounted supplies and application of statutory assessment procedures.