Thanks for dropping by, @andre8.
I've got the steps on how to add Payroll to your QuickBooks Online subscription.
Let me show you how:
- Go to the Gear icon.
- Select Account and Settings.
- Choose Billing and Subscription.
- Choose the payroll subscription by clicking Subscribe and then provide your billing information.

Please follow the on-screen instruction to complete the process.
I'll add these articles as your references on setting up QuickBooks Online Payroll:
Just in case you wanted to change the payroll settings, you can utilize the Gear icon on the top right and then select Payroll Settings.

Keep me notified by leaving your reply to this post or tag me (@Jovychris_A) if you have more questions. I'm always here to help. Have a good one!