Whether you're changing your name because you just got married, prefer being called something else, or maybe you're on the lam, there's still a process you need to follow. If you've recently tied the knot, you've got two choices: assuming a new name or legally changing it. Assuming your partner’s last name means you can update stuff like your passport, driver's license, and health card with your marriage certificate, but your birth certificate stays the same. This option is completely free. Now, if you decide on a legal name change, you'll get a fresh birth certificate showing both your married and maiden names, and you'll need to update all your documents. You’ll typically need to provide a police check and a filled-out application, and it can cost money, which varies from province to province — in Ontario it costs $137. If you're changing your name for any other reason besides marriage, it's gotta be done legally and (with some exceptions like reclaiming an Indigenous name), it's gonna cost you. And don't forget to give the Canada Revenue Agency a heads-up ASAP so they can update their records with your new name.