Thank you for posting here in the Community. Let me help you with your concern about sick time in QuickBooks Online.
You can make changes to the information by going to your employee's profile. I suggest updating your time off policy or the current balance based on the details you want to reflect in the system.
Go to the Workers or Payroll menu, then select Employees.
Select employee’s name.
In the Pay section, select Edit ✎.
In the How much do you pay [employee]? section, select Edit ✎.
Select Paid time off, Unpaid time off, Sick Pay, Vacation Pay or Holiday Pay.
Select Edit ✎ to make changes to policy.
Update the current balance if necessary.
For more information, as well as how to provide time off through the Payroll Settings section, I recommend the following article (scroll down to How to add paid or unpaid time off): Set up and track time off in payroll.
Drop me a comment below if you have any other questions. I'll be happy to help you some more.
How do I rollover sick time( 40 hours or less) in QB online each year?
Let me help you in setting up sick leave accruals for the new Under Accrual period, select Every hour on a paycheck. For example, you give 80 hours of vacation per year and it is accrued. I'll share the ones for QuickBooks Online.