Part of the benefit of the TA Marketplace is that vendors are providing discounted rates, so your TA Card funding goes as far as possible. While TA Vendors may have different rates, each TA project will have a firm fixed price for the scope of work negotiated by you and the TA Vendor, so you will know up front how much of your TA Card you will use and how much you still have available. You will have the opportunity to contact vendors directly to discuss and agree upon a scope of work and budget before committing to your proposed TA project.