Single Touch Payroll (STP)
The ATO has made it compulsory for all businesses to lodge every payrun to the ATO commencing 1 July 2019. This initiative is called Singe Touch Payroll (STP).
This will replace the lodgement of the payment summary (group certificate) at the end of the financial year (the 2019 payment summaries will still be required).
Processing payroll with STP in Xero is very similar to Xero’s current method of processing payroll. However, please note that once the payroll information has been lodged to the ATO it will be more difficult to fix mistakes. Therefore it is important that wages paid to your employees match what you have processed through Xero.
https://tv.xero.com/detail/video/5856079881001/single-touch-payroll?autoStart=true&q=stp
For further information about processing payroll perfectly, please read the following article.