There are quite a few ways to cover the price of Onamia drug addiction treatment. One payment method you may find is a sliding fee scale (fee is based on earnings and other components). This means that the rehab adjusts their charges based on the client?s earnings, yearly taxes and other economic factors; in the end, the cost that one person pays might not be the same as another. There are a number of reasons why a drug rehab would select to offer a sliding fee scale to their clients. They may choose to help out an addict who would in any other case not be able to acquire treatment. Another reason for providing this payment possibility is that it offers the treatment facility with a tax deduction on the benefit of donating their services as charity.