A merchant account is a bank account that lets the merchant accept credit cards for payment. This is integral for an e-commerce company as credit cards will be the primary method of payment. In order to set up a merchant account, you must first have a business bank account. Lastly, you need to apply to a bank for a merchant account. They will require your business EIN, business bank account information, and the projected processing volume of your business. The greater the amount you intend to transact, the more documentation the underwriter will want to see with your application. If your business is only looking to process a couple thousand dollars a month, you may only need to provide a voided check and marketing material (proving that you’re actively conducting business) to get started. If you want/need to apply to process larger amounts, be prepared to provide more financial information, such as several months of bank statements. In some cases you may be asked to provide up to two years of financial statements in the form of profit and loss statements along with balance sheets.