With a hobby like genealogy cost can vary depending upon how well your ancestors buried the records. The SAR cost vary from Chapter to Chapter or State to State with regards to dues. To find the cost for you reach out to the contact closest to you. They can be found here. The National Society cost for the application fee is $100 (US). The National Society dues are $35(US) The State Society cost would add to this amount. The same for Chapter cost.