you're not doing this for free! Right?
Step 1: bill the customer
Once services are completed you need to send an invoice to the client based on timeclock and/or estimate.
(You can also up-sell other services for more future revenue!)
Monthly clients can have recurring invoices made for you automatically!
step 2: track for payment
View the invoices you've sent out, followup with customers for aging invoices, and ensure that the customer is paying their bill and are happy with the service
step 3: Bill for your cut!
Once their payments clear, we can pay you! Just send us an invoice of your own, listing the invoices that have received payment, and we'll pay out 10% of those payments to you!