single touch payroll definition; Single Touch Payroll (STP) has been defined as the digital reporting system that is required by the Australian Taxation Office. It makes employers submit the salary, wages, pay as you go (PAYG) withholding and superannuation contributions of employees on a pay cycle basis using compatible payroll software. Businesses are able to automatically submit payment summaries or group certificates annually instead of submitting them manually during the payroll processing. The definition gives an emphasis on STP as a compliance regime to minimize administrative burden, enhance transparency and to ensure that a reporting and updating of employee entitlements under a real-time reporting and updating to the ATO throughout the financial year.