Can co-applicants be added after the application has started? Unfortunately, a new application is required in order to apply jointly with a co-borrower. Related articles Can my offer change after I get prequalified? How do I add a co-applicant to my Aven Rewards Card? Can I enroll multiple accounts in Plaid for income verification? What are the eligibility criteria for applying for the Aven Home Card? Is Aven a credit card or a home equity line of credit?