Thank you for sharing the screenshots, @AlisonH1.
Since the pension is still incorrect even after that no changes have been made with the setup, I'd recommend contacting our Payroll Care Team. With their tools, one of our specialists can further look into what is the cause of the incorrect calculation of your pension.
To contact our dedicated support:
- Go to Help.
- Select Contact Us,
- Enter Incorrect Pension Calculation on the What can we help you with? field.
- Click Continue.
- Choose a channel where you wish to connect with our specialists.
Additionally, I've also included this reference for a compilation of articles you can use while working with us: Help Articles for QuickBooks Online Payroll.
If there's anything else that I can help you with, please let me know by leaving any comments below. I'll be here to lend a hand.
By playing around I've found the problem and publishing it in the hope it helps someone else encountering this.
In settings there is a tick box for Use Earnings Thresholds. It says "Earnings threshold - Use the latest defined earnings thresholds to work out when employees are auto enrolled in the pension."
There is no earnings thresholds that affect the % of contributions until earnings hit £50k but having this ticked means that QB appears to have changed the % in the ninth month of earnings at £3,090, with this box ticked. Having unticked this the figures are now correct. Have deleted and rerun December's payroll.
This makes no sense but perhaps needs looking at by QB.