Electronic tax ledgers centralize GST payments and prescribe utilization priority and refund mechanisms for credits and cash balances. Taxpayers must remit tax, interest, penalty, fees and other amounts into electronic cash and credit ledgers; deposits are credited when the Government's bank account is credited. Ledger balances may be used for statutory payments subject to prescribed conditions and timelines, residual balances may be refunded, and all liabilities must be recorded in a prescribed electronic register. Input tax credit utilization follows a prescribed priority: IGST credit applies to IGST first, then CGST/SGST; CGST/SGST credit applies to its respective tax first and then to IGST; CGST and SGST credits cannot be cross-utilized between each other.