If the ownership of a business changes for any reason, the new owner needs to establish a new merchant account.

In the Business Info section, the name listed under "Legal Full Name" must exactly match the Legal Business Name associated with your banking information. If this information is NOT currently accurate, you must request to have this information updated before you can finish activating your Gateway account. 

The payment section has a TIN validation which checks to see if your TIN matches the legal business name on the account as well as if the banking information is legitimate. It is very important that the TIN you are trying to enter is associated with the legal name on file with the IRS.

If the ownership of a business isn't changing, but the individuals responsible for managing the seller account have changed you can add users to the account