There are quite a few ways to cover the expense of Langhorne drug addiction treatment. One payment method you may discover is a sliding fee scale (fee is based on income and other components). This means that the rehab adjusts their fees based on the client?s earnings, yearly taxes and other monetary components; in the end, the cost that one individual pays may not be the same as another. There are a number of reasons why a drug rehab would select to provide a sliding fee scale to their clients. They may select to help out an addict who would often not be able to receive treatment. Another reason for providing this payment possibility is that it provides the treatment facility with a tax deduction on the benefit of donating their services as charity.