Question: How do you add in PAYG Tax Witholding to a BAS?  specifically for W1 and W2 items.

Answer: The activity statement (AS) is generated directly from the ATO Portal. The PAYG Withholding is added to the AS through the client's ATO Regsitration (Check in the ATO Portal). If the client has recently registered for PAYG W and the BAS has been issued without the PAYG W, you will need to call the ATO to cancel the current AS form and re-issue a new form with the PAYG W fields.