SARS has paid my refund into an old bank account, what now?

The onus is on the taxpayer to ensure SARS has the correct bank details. SARS only pays refunds into valid bank accounts. If the ‘old’ bank account is still open and valid, then SARS can’t assist and you need to consult your bank. However if the account is closed, the credit will be returned by the bank and automatically reversed by SARS, this also invalidates the bank details and communication will be issued to taxpayer.