Apply for British citizenship if you're married to, or in a civil partnership with, a British citizen - form AN, who's eligible, fees and how to apply. Two petitions are required: Petition for Alien Relative, Form I-130, and Petition for Alien Fiancé(e), Form I-129F.Has information you must know before you submit your application, and; explains how to fill out the forms and gather your supporting documents. Your spouse could have their immigrant visa application denied and their current nonimmigrant visa revoked. You'll need to have been married to a British citizen. Each applicant must complete and sign a visa application, filling in each of its sections. I will also be completing 12 months on ILR next month in February 2024. Approximate date that the application was submitted, if applicable, in the 'Your enquiry' field. A potential partner may consider marriage to a Canadian citizen as a ticket to an immigrant visa. You should consider the options carefully, as each will have a different effect on your tax and reporting requirements.