Can i make adjustments to past pay runs as I have realised I did not increase someones pay on their birthday . Concerned as they are all forwarded to tax department

Hi knockabouttaxe, 

Thank you for coming to our QuickBooks community. This is a common concern that customers do experience when a payment is missed on the payrun or backpays that aren't included in the payrun. 

The best thing to do is to create a new payrun for this additional payment and then lodge to the ATO to update the year-to-date figures. 

If you have further questions, please do not hesitate to let us know.