The story (told by an accountant who still enjoys a good payslip joke)

A mid‑sized Belfast bakery — let’s call them Flour Power — used to run payroll like a relay race where the baton was a sticky Post‑it. Seasonal hires, last‑minute overtime, and handwritten adjustments meant late Full Payment Submissions (FPS) and frantic evenings before payday. Under RTI, employers must report payroll information to HMRC each time employees are paid, so every missed detail was a potential penalty and a very awkward email to HMRC.

The owner hired me to stop the midnight scrambles. First move: standardize the starter/leaver process. HR now completes a one‑page checklist for every new hire (NI, tax code, bank details, pension status). That single change eliminated the most common source of manual corrections and saved hours of detective work.

Next, we moved to RTI‑compliant payroll software that validates NI numbers and flags unusual tax codes before submission. The software also automates FPS and EPS submissions, which reduced human error and ensured reports went to HMRC on or before payday — exactly what RTI requires. The bakery went from three people checking spreadsheets to one payroll champion running a quick dry‑run the day before payday.

Practical steps they took (and you can copy)

• Set a firm payroll cut‑off 48 hours before payday and enforce it.
• Appoint one payroll owner to submit FPS and reconcile bank payments.
• Run a dry‑run payroll a day early to catch anomalies.
• Automate validations (NI, tax codes, pension) with RTI‑ready software.
• Reconcile monthly: payroll ledger vs bank vs pension provider.

Risks and how to avoid them

• Late or incorrect FPS can lead to penalties and time‑consuming corrections; use software alerts and calendar reminders to avoid this.
• Poor starter data causes miscalculated tax and pension contributions; insist HR hands over a completed checklist.
• Manual adjustments multiply errors; automate recurring items and keep a single source of truth for changes.

Pro tips from an accountant who’s seen every payslip panic

• Pro tip 1: Keep a short “seasonal hires” sheet with NI, tax code, start/end dates and one line of notes — it’s your payroll lifeline.
• Pro tip 2: Batch‑submit FPS for groups of temps where possible to reduce clicks and mistakes.
• Pro tip 3: If outsourcing, insist on a written SLA that covers RTI deadlines and reconciliation responsibilities.

Payroll isn’t glamorous, but it’s the backbone of staff morale. Get the basics right — accurate starters, RTI‑ready tools, and one accountable person — and you’ll trade frantic evenings for calm tea breaks and perfectly timed pay slips.