The BMO Harris Central National Association is a business credit card from BMO Harris Central National Association. Application typically pulls a credit report from TransUnion. The annual fee is $0. The ongoing APR is 18.00% - 24.00% Variable. Signup bonus: The introductory rewards bonus is based on total net qualified purchases made in the first two months of account opening.. Rewards: BMO Flex Rewards points can be redeemed for flights, hotels, cruises, vacation packages, car rentals, or statement credit.. This product does not report routine activity to your personal credit (only on default if a personal guarantee is required).