Software/app that integrates with Stripe to manage income/expense and employee payments?

I have a client who has a monthly subscription service. They use Stripe to handle that. Each subscription is assigned to an employee. Employees can have 1 or more assigned to them.

Every month they tally up in Excel how many subscriptions each employee had, in order to determine their payroll, along with their other accounting (like profit and loss statements).

I'm going to create a custom reporting tool to integrate with Stripe and figure this out for them, but I just keep thinking something like this must already exist? Surely this is a common situation? My Google skills are failing me.

Any suggestions?