How to Improve Your Credit Score Before Applying for a Mortgage

By the Ottawa Mortgages editorial team · Last reviewed: September 2026 · How we write our guides

How can I improve my credit score before applying for a mortgage? Pay every bill on time, keep credit card balances well below your limits, avoid new credit applications, correct errors on your credit reports and keep older accounts open. Payment history and credit utilization have the biggest impact, and small improvements can take a few months to appear.

Your credit score influences whether you qualify, which lenders will consider you and the rate you are offered. Starting three to six months before you apply gives you time to make changes that matter.

What makes up your credit score

FactorRough weightWhat helps
Payment historyLargestPay on time, every time
Credit utilizationLargeKeep balances under about 30% of limits, lower is better
Length of credit historyModerateKeep older accounts open
New credit and inquiriesSmallerAvoid opening several accounts at once
Types of creditSmallerA healthy mix of cards and loans

Exact weights differ between scoring models, so treat these as general guidance.

A 90-day plan

  1. Get your reports. Request free reports from Equifax Canada and TransUnion Canada and review every line.
  2. Dispute errors. Wrong balances, accounts that are not yours and outdated items can drag your score down.
  3. Lower your balances. Pay down cards, and consider paying before the statement date so a lower balance is reported.
  4. Set up automatic payments for at least the minimums so you never miss one.
  5. Pause new applications for cards, loans or store credit until after your mortgage closes.

Things to avoid before applying

  • Financing a car, furniture or other large purchases
  • Co-signing loans for others
  • Closing old accounts with good history
  • Maxing out cards, even if you plan to pay them off
  • Changing jobs or income sources without talking to your broker

Frequently asked questions

How long does it take to raise a credit score?

Small improvements can show up in one to three months, especially from paying down balances. Recovering from serious problems takes longer.

Does checking my own credit lower my score?

No. Checking your own credit is a soft inquiry and does not affect your score.

What credit score is considered good in Canada?

Scores generally range from 300 to 900. Scores in the 660s and above are often considered good, and 725 and above very good, but lenders set their own requirements.

Related: Getting a mortgage with bad credit and pre-approval in Ottawa.

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Important: Ottawa Mortgages is an independent information and referral service. We are not a lender, mortgage broker or mortgage brokerage, and we do not give mortgage advice or make credit decisions. If you ask to be connected, your details may be shared with a licensed Ontario mortgage professional, who may compensate us. Rates, rules and eligibility change often. Confirm details with a licensed professional and official sources, and check any Ontario mortgage broker’s licence with FSRA. Read our full disclosure.

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