1) “I can’t run payroll.”
Make sure you’re in the correct Active tax year in QuickBooks (⚙️ Settings → Payroll Settings → Active Tax Year). If you recently moved back a year, also re-check employee tax codes/NI letters are valid for that year.
2) “I’m getting a date error on the first pay period.”
This usually means your pay date or pay schedule doesn’t align with the selected tax year. Set the correct Active tax year, then confirm the first pay date. HMRC requires the FPS to show the actual payment date (not the date you ran payroll), and RTI filings must align to tax periods.
3) “Week 53/54/56 has confused the tax.”
If your final payday of the tax year falls on 5 April for weekly/fortnightly/four-weekly schedules, you may have an extra run (“Week 53”, etc.). Tax for that run is calculated on a non-cumulative (week 1) basis. That is expected behaviour under PAYE.
4) “Payslips weren’t issued on time.”
You must give payslips on or before payday (paper or electronic). Build this into your run workflow (approve → publish).
5) “P60s are late / employees are asking for them.”
P60s must be provided to all employees who were on your payroll on 5 April by 31 May. In QuickBooks, generate P60s after you’ve moved into the new tax year and finalised year-end.
6) “Tax code or NI details look wrong / are being rejected.”
- For new starters without a P45, use HMRC’s Starter Checklist to set the initial tax code; update the code when HMRC later issues a coding notice.
- If a P45 arrives after your first FPS for that employee, keep using the tax code you already reported until HMRC sends a new one.
- Rejections often come from mixing years (using a code or NI category letter not valid for that tax year) — confirm the Active tax year first.
7) “I need to fix something after submitting payroll (wrong pay/tax/NI).”
You can correct mistakes by sending a corrected FPS (and EPS where relevant), and adjusting in the next run if needed. HMRC has specific guidance on correcting submissions and payments; follow that flow, then re-issue payslips to affected employees.
8) “P45 details aren’t appearing on HMRC submissions.”
Check the employee’s hire date is in the correct tax year; then remove and re-enter the P45 details and save again. If the first FPS has already gone, keep the existing code until HMRC issues a new one.
9) “I can’t change a director’s NI method / an employee’s pay schedule or pension scheme.”
Those changes are typically restricted to the start of a new tax year in Core Payroll. Switch to the new year first, then update the settings before the director/employee is paid in that year.
10) “My PAYE bill looks off after realigning dates or making corrections.”
Mismatched FPS dates or period alignment can skew the PAYE/NIC position. Realign the FPS to the actual pay date and, if necessary, use EPS to correct period-level figures per HMRC guidance.