There are numerous ways to cover the price of Avis drug addiction treatment. One payment method you may uncover is a sliding fee scale (fee is based on income and other variables). This means that the rehab adjusts their charges based on the client?s income, yearly taxes and other monetary components; in the end, the expense that one particular client pays may not be the same as another. There are numerous reasons why a drug rehab would choose to present a sliding fee scale to their clients. They may pick to help out an addict who would in any other case not be able to acquire treatment. Another reason for providing this payment selection is that it offers the treatment facility with a tax deduction on the benefit of donating their services as charity.