For each state, province, locality, or other filing authority, collect the sales detail used for the return, exemption and resale information where applicable, marketplace-facilitator reports, filed return, filing confirmation, payment confirmation, notices, and general-ledger activity. Preserve the report parameters, including entity, location, date basis, time zone, and whether refunds and discounts are included.
Build a period rollforward with opening liability, tax recorded from sales, debit or credit adjustments, return liability, payments, and ending liability. Keep separate ledger subaccounts by jurisdiction when the accounting design supports it. If several jurisdictions share one account, the reconciliation schedule must provide the missing detail.