01/09/2026
Real Time Information (RTI) payroll: what it is, why it matters, and who needs to get it right.
RTI means HMRC finds out about payroll problems the same day they happen, not months later.
Real Time Information requires payroll data to be submitted on or before each payday, covering pay, deductions, and tax and National Insurance for every employee. That immediacy is exactly why errors get flagged fast, there’s no lag between a mistake and HMRC noticing it.
For any employer running payroll, “we’ll fix it next month” isn’t really an option any more. Corrections need to happen quickly, ideally before the next submission is due.
If your payroll process still treats corrections as something to batch up later, that’s worth revisiting.