RTI Submissions refers to the reporting process mandated by HM Revenue and Customs (HMRC) under the Real-Time Information (RTI) system, which requires employers to report employee pay and deductions to HMRC each time payroll is processed. This system, introduced in April 2013, aims to streamline payroll reporting and ensure more accurate tax and National Insurance Contributions (NICs) calculations.

RTI submissions are categorised into two types:

  1. Full Payment Submission (FPS): This report details each employee’s earnings, deductions, and taxes withheld for a given pay period, and must be submitted on or before the payday.
  2. Employer Payment Summary (EPS): This submission reports adjustments to the FPS, such as reclaimable statutory payments or corrections, and is used to summarise total PAYE and NICs liabilities.

Employers are required to submit these reports electronically, although some exemptions exist for those unable to use digital methods. Compliance with RTI ensures timely and accurate reporting to HMRC, facilitating effective management of tax and NICs.