IHA’s primary method of accepting payment is by company check in U.S. dollars, wire transfer or ACH. If you prefer the convenience of paying online by credit card, we will charge your credit card an additional 3% on the total invoice amount below as a non-refundable convenience fee. If you pay by credit card and are later owed a refund for any reason, the convenience fee will not be included in the refunded amount. Membership is also non-refundable.