There is no rule in Canada about who changes their name after a wedding. Either partner can, both can, neither has to, and plenty of couples land somewhere in between with a hyphenated or combined surname. The tradition of one partner taking the other's name is exactly that — a tradition, not a legal requirement.
What trips couples up is not the decision. It is the order of operations afterwards, and the fact that the rules are provincial rather than federal.
Two different things called a name change
Most provinces distinguish between two paths, and they are not the same amount of work.
The first is assuming your spouse's surname. This is not a legal name change. Your birth certificate stays as it is, and you use your marriage certificate as proof when you update identification. It is reversible, generally free, and it is what most people mean when they say they "changed their name."
The second is a legal change of name. This replaces your name on the official record, usually costs a fee, and often involves a criminal record check and a waiting period. Couples choose this route when they want a hyphenated or blended surname that is not simply one partner's existing name.
If you want to combine both surnames into something new, you are almost always in legal-change territory. Budget more time than you think.
Québec works differently
If you married in Québec, both spouses keep their surname after marriage. This is not a preference, it is the rule under the Civil Code. You must use the surname you were given at birth to exercise your civil rights — signing contracts, legal documents, and the like.
Socially, you can still use your spouse's surname if you want to. The distinction is between everyday use and civil use. Making it official requires a formal name-change application, which Québec grants only for a serious reason, and wanting to share a surname after a wedding is not on its own treated as one.
Couples who marry in Québec but live elsewhere sometimes find this surprising. Confirm the current position with Québec's Ministère de la Justice or the Directeur de l'état civil before you make plans that depend on a surname change.
Wait for the certificate
Whichever path you take, almost every organization will ask for your marriage certificate — not the licence, and not the decorative document your officiant signed at the ceremony.
The certificate is the government-issued record, and it arrives weeks after the wedding. Ordering it is usually the first real step, and there is no point starting anything else until it is in your hands.
An order that saves rework
The sequence matters more than the speed. Each update tends to require the previous one as proof.
Start with the marriage certificate. Then your federal identification — passport and, where relevant, permanent resident documentation. Then provincial identification: driver's licence and health card. Then the Canada Revenue Agency, your bank, your employer and payroll, and your insurance.
Two things are worth flagging early. If you have travel booked, your passport name must match the name on your ticket, so either update it well in advance or book under your current name. And tell the CRA about the marriage itself even if neither of you changes a name, because marital status affects benefit calculations.
If you are not changing names
Nothing here applies except the CRA update. Your marital status changed even though your names did not, and that is the one piece of paperwork you cannot skip.
Keep it in one place
Name changes stretch across months and involve a dozen organizations, which is exactly the kind of thing that falls apart in a group chat. MapleVow's Canadian after-wedding checklist is province-aware and tracks what you have finished and what is still outstanding, so the follow-up does not quietly become one person's second job.
Requirements and processing times change, and provinces differ. Confirm the details with your province's vital statistics office and with the CRA before you submit anything.