The reason for this is that most rolling fee schedules used by non-profit and other organizations base the fee on the financial situation of the break-up party. Place the area of your sliding ladder in the stone. Never go below the minimum you have set for yourself. Be prepared to refer customers who can`t pay your minimum to other inexpensive options. With a sliding scale, you subsidize your customers. Your Full Fee customers essentially pay the difference for your customers with reduced fees. You usually can`t calculate who has insurance on a sliding scale, as this can lead to you receiving a higher or lower payment than you receive from the insurance company….