When the tax settlement process is executed, the financial voucher that is created clears the balances of the ledger accounts associated with the tax codes. However, the voucher is posted in the currency of the tax codes, assuming that all invoices had a transaction currency equal to the tax code currency.

If any invoices were raised in a currency that differs to the currency of the tax code, you will be left with a currency imbalance in the ledger accounts associated with your tax codes.

When performing the sales tax settlement, the system should create the financial voucher in such a way to ensure the balances being cleared from the tax related ledger accounts are in the same currency as they were originally posted.