NC eProcurement is a user-friendly, online purchasing system that offers cost savings and an efficient purchasing process to government users. On the 'Enter a Payment Method' page, select 'Credit or Debit Card'. 2.Electronically file and pay your current or prior sales and use tax return (E-500) using our online filing and payment system. This video will guide you through filing a basic online sales and use tax return. If you're looking for the best eCommerce payment processing services in Apex, North Carolina, Electronic Merchant Systems (EMS) can help. Setting up Electronic Funds Transfer (EFT). Electronic Funds Transfer ( EFT ) allows providers to receive electronic payments directly in their bank account. Participating Blue Cross NC providers can be paid electronically. Setting up EFT is easy to do if you already use Blue e. The State of North Carolina offers payees the opportunity to receive payments electronically through U.S. based banks.