I’m planning to get married civilly in 3 weeks but formally and publicly in about a year (after the pandemic). I’m going to add his last name as my second last name (sans hyphen) on the wedding application & certificate but I’d like to hold off on using/making my new last name public until we’re formally married next year. Is there a time limit where I need to update my name after the civil ceremony or can I keep using my maiden name for the next year until the formal wedding?
Also, when you keep your last name but add his as a second last name, do you need to always dig things/call yourself by both last names or can you use one or the other them interchangeably depending on the situation? (I’m a lawyer and am known by my maiden name professionally)