I'm here to help ensure you'll be guided to the right support, CatG79.
To ensure the employee's annual leave is calculating correctly, I'd suggest getting in touch with our QuickBooks Online Support so we can do a screen share and look specifically at the accrual issues.
All payroll-related concerns are directed to our phone support for security purposes. Here's how to contact us: Contact Payroll Support.
For now, you might want to bookmarks the following resources below. These will provide us with steps from adding to setting up accrual leave in QuickBooks as well as other payroll links for your future references:
QuickBooks Online Advanced Payroll hub.
Adding Leave Categories and Accrual in QuickBooks Online Advanced Payroll.
Please know that we're always here for you if you still have questions or concerns with payroll. Don't hesitate to reply anytime. Take care and have a good one, CatG79.