Becoming an authorized user on someone else's credit card is a legitimate credit-building strategy in Canada. It allows you to benefit from another person's established credit history without needing to qualify for your own credit. It is commonly used by parents to help adult children build credit, or by spouses where one partner has a thin or damaged credit file.
An authorized user is a person added to someone else's credit card account. The primary cardholder makes the account available to the authorized user, who receives their own card and can make purchases on the account. The primary cardholder is solely responsible for paying the bill — the authorized user has no legal obligation to repay the debt.
The key credit-building element is that the account's history — including the age of the account, payment history, credit limit, and current balance — may appear on the authorized user's credit report at Equifax and/or TransUnion.
Yes, but with an important caveat: not all Canadian credit card issuers report authorized user accounts to the credit bureaus in the same way, and some do not report them to the authorized user's file at all. In the United States, this practice (sometimes called "piggybacking") is more standardized. In Canada, results vary by issuer.
Major Canadian bank credit cards (RBC, TD, CIBC, BMO, Scotiabank) typically do report authorized user activity to one or both bureaus, but the practice is not guaranteed. Before relying on this strategy, ask the card issuer directly whether authorized user accounts are reported to Equifax and TransUnion under the authorized user's name.
For authorized user status to help build credit, the primary account must have:
An authorized user on a card with a terrible payment history or maxed-out balances will have that negative information added to their own credit file — the reverse of what you want.
The person adding you as an authorized user takes on risk. If the authorized user makes purchases they cannot cover, the primary cardholder is responsible for the full debt. Even if the authorized user never uses the physical card, adding them to the account creates shared access to the credit limit.
This is why authorized user arrangements are typically limited to close family relationships where there is significant trust. The arrangement should be discussed openly, with clear expectations about whether the authorized user will actually use the card or simply be listed for credit-building purposes.
The impact varies significantly based on the primary account. If the account has:
...being added as an authorized user can be a meaningful boost, potentially adding decades of positive history to a thin file and pushing a beginner score from "unscorable" to 650+ relatively quickly.
The effect is less dramatic if the authorized user already has their own credit history. It is most impactful for someone with no credit history at all or a very thin file.
You can request to be removed as an authorized user at any time by contacting the card issuer. When removed, the account history associated with that card may be removed from your credit report as well. Time removal carefully — if the account was boosting your score, removing yourself will cause a drop. Only do so once you have enough of your own credit history to sustain a good score independently.
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