The ATO recently made Single Touch Payroll (or STP) compulsory for all employers, from 1 July 2019. ATO Single Touch Payroll employer reporting guidelines: https://www.ato.gov.au/Business/Single-Touch-Payroll/In-detail/Single-Touch-Payroll-employer-reporting-guidelines/ .
How does it effect employers? Previously employers reported payroll information to the ATO once a year. Soon, employers will need to send a report after each pay event. These reports must be submitted digitally, using a specific format. This means that employers will no longer have to report payment summary annual reports or employee payment summaries at EOFY. The ATO will also use this information to record the wages paid, taxes collected and superannuation contributions on an individual level. Employees will be able to see this information by logging onto myGov.