Write-offs in billing

Many therapists offer a sliding scale. Please add a write-off dropdown to the price being billed so the new amount is what is sent, and the write-off can be documented for tax and analytics purposes. For example, if I charge $200 and a client is paying $150- they get the “bill” for $150 only, and in my system it shows that I can write off $50 off of the practice’s total monthly income