Jack Arthur offers two (2) ARTIST Membership Levels.  The ARTIST PRO membership (which is a monthly or annual paid memberhsip) allows artists to sell through Jack Arthur without paying a commission. The ARTIST Membership (which is a FREE membership) charges a 15% commission on each artwork sold through Jack Arthur.  Additionally, each sold artwork has a small transactional fee to cover shipping and processing costs, and those fees should be considered when pricing your art on Jack Arthur.