There are numerous ways to cover the cost of Millmont drug addiction treatment. One payment method you may come across is a sliding fee scale (fee is based on earnings and other components). This implies that the rehab adjusts their fees based on the client?s earnings, yearly taxes and other financial components; in the end, the expense that a single person pays may not be the same as another. There are a number of reasons why a drug rehab would choose to present a sliding fee scale to their clients. They may choose to help out an addict who would often not be able to obtain treatment. Another reason for providing this payment possibility is that it provides the treatment facility with a tax deduction on the merit of donating their services as charity.