For your payment to IRAS, typically it takes at least 10 working days to be updated on your tax account. Please schedule your tax payment payout date to be at least 10 working days earlier than your payment due date.
To avoid delay in the processing and posting of your tax payment, please ensure your 'Note to supplier' for IRAS tax payment includes your Tax Reference Number or 14 digits Payment Slip Number and the respective tax type. (eg. A1234567B Income Tax)
Click here for further details on IRAS processing and posting of payments.