Note: this feature is being rolled out in stages and is not visible to all organizations. If you don't see it in your account, talk to your Success Advisor about joining or check back later.
To join Payroll navigate to My Money in the top navigation. Next, from the left sidebar chose Payroll.
Once on the page, you can learn more about Housecall Pro Payroll and sign up for a demo call. Because Payroll is a quite complex product you will be taken through a quick demo where you can ask about your particular use-case and decide if you want to move forward.