Some MLS boards require an additional vendor fee in order to provide IDX service. This may be a one-time, annual, or monthly fee imposed by the MLS provider. This is outside of our control. In these rare cases you are charged an additional data access fee (also referred to as a pass-through fee) as part of your monthly service. If applicable, you will be notified of the additional cost by email and billed separately for this pass-through fee on a monthly basis. Fees may be around $5 to $45, are set by each individual MLS provider and are subject to change at the MLS provider’s discretion.