Credit Scores: Mechanics, Not Myths Core

A credit score is a prediction, not a judgement. Once you know what it is actually predicting, most of the folk advice around it turns out to be wrong — and some of it is expensive.

What a credit score is predicting

A credit score answers exactly one question for a lender: how likely is this person to fall 90 days behind on a payment in the next couple of years? It is not a measure of wealth, income, or financial virtue. Someone with a $2 million portfolio and no credit history can have a worse score than a student with one card used carefully for three years.

Canada has two credit bureaus, Equifax and TransUnion. They hold different data — not every lender reports to both — so your scores will differ, sometimes by a lot. Both are free to check directly, and both are worth checking annually, mainly to catch errors and fraudulent accounts.

The weights are approximate and vary slightly between bureaus and score versions, but the ordering is stable and it tells you where to spend attention. Payment history and utilisation are two-thirds of the score. Everything else is rounding.

Utilisation and the statement-date trick

Credit utilisation is what you owe divided by your total available credit. It is the second-largest factor and the only one you can change quickly — it recalculates every month.

The generally accepted guidance is to stay below 30%, and scores tend to be best below 10%. On a card with a $10,000 limit that means keeping the reported balance under $1,000.

Here is the part almost nobody knows. Your card issuer reports your balance to the bureaus on the statement date, not the due date. If you charge $4,000 in a month on a $10,000 limit and pay it in full on the due date, you never paid a cent of interest — but a 40% utilisation was reported and your score took the hit anyway.

The other lever is the denominator. Requesting a limit increase on an existing card lowers utilisation instantly without you doing anything differently — though some issuers treat a limit-increase request as a hard inquiry, so ask first. And closing an old card raises utilisation by removing available credit, which is one reason the "close cards you don't use" instinct backfires.

Three myths that cost real money

Myth 1: "Carrying a balance builds your credit"

This is wrong, and it is the most expensive myth in Canadian personal finance. Your utilisation and payment history are reported whether or not you carry a balance from month to month. Paying in full builds exactly the same history — the identical data reaches the bureau — and costs you nothing. Carrying a balance builds the same score and hands your card issuer 20% a year for the privilege.

Myth 2: "Checking my score will lower it"

Checking your own score is a soft inquiry. It is not visible to lenders and has zero effect on your score. Only a hard inquiry — generated when a lender pulls your file because you applied for credit — counts, and even then a single hard pull typically costs only a few points and fades within a year. Rate-shopping for a mortgage or car loan within a short window is generally treated as a single inquiry.

Myth 3: "Closing old cards cleans up my credit"

Closing your oldest card damages two factors at once: it shortens your average account age, and it removes available credit, raising utilisation. If a card has no annual fee, the usually better move is to keep it open, put one small recurring charge on it, and set that to autopay. If it has a fee you resent, ask to downgrade to a no-fee version of the same product — that preserves the account age.

Building credit from zero — and the new-Canadian problem

Credit history does not cross borders. Someone arriving in Canada with twenty years of impeccable repayment abroad starts at nothing, and is quoted worse terms than a 19-year-old with one student card. This is a real, well-documented friction, and the paths through it are known:

• A secured credit card. You place a deposit — often $500 to $1,000 — and receive a card with a matching limit. It reports to the bureaus like any other card. After 12 to 18 months of on-time payments, most issuers will convert it to an unsecured card and return the deposit.
• Newcomer banking programs. Most major Canadian banks offer unsecured cards to recent arrivals without a credit file, typically requiring proof of status and sometimes a relationship with the bank.
• Become an authorised user on an established account, where the primary holder's history on that account can flow to your file.
• A credit-builder loan or reporting your rent payments through a service that reports to the bureaus. These help, but far less than a well-managed card.

Whatever the entry route, the mechanics after that are the same for everyone: pay on time, every time, and keep the reported balance low. That is 65% of the score, it is entirely within your control, and it requires no cleverness — only automation. Set up autopay for at least the minimum on every card the day you open it, so a distracted month can never cost you years.

Common questions

Does carrying a credit card balance help your credit score in Canada?

No. Your utilisation and payment history are reported to Equifax and TransUnion whether or not a balance carries over. Paying the statement in full sends exactly the same data to the bureaus and costs no interest. The belief that a balance must be carried is the most expensive myth in Canadian consumer credit.

What credit utilisation should I aim for?

Below 30% is the general guidance, and scores are typically best below 10%. What matters is the balance reported on your statement date, not what you owe on the due date — so paying down before the statement closes controls the number the bureaus actually see. Requesting a higher limit lowers utilisation instantly without changing your spending.

How can a new Canadian build credit quickly?

A secured credit card is the most reliable route: place a deposit, receive a matching limit, use it lightly and pay it in full every month. Most issuers convert it to an unsecured card after 12–18 months and return the deposit. Newcomer banking programs at the major banks and becoming an authorised user on an established account are the other common paths. Credit history does not transfer from another country, so everyone starts from zero.