An incomplete employee's information can be the cause why enter prior tax history link isn’t showing. To fix this, make sure that your payroll setup includes all your employee's information, especially the tax details.
Let's go to the payroll settings and check if all you have set up the state and federal taxes. Simply click the Gear icon and select Payroll Settings.
Also, you can go here:
1. Go to the Payroll tab and select Employees.
2. Click on the employee's name and click Edit employee.
3. From there, verify if the Pay, Profile, and Employment data have been entered.
To learn more about the payroll setup in QuickBooks Online, you check out the steps and visual references found in these links: