Mortgage Do’s and Don’ts

Most people are unaware of the potential roadblocks they could come up against when applying for a mortgage — until it’s too late. This list of mortgage do’s and don’ts are designed to save you from mortgage application headaches.

Check your credit score in advance

Your credit score is an essential ingredient in the mortgage qualification recipe. If it’s low, many lenders won’t consider your application at all. Those that will consider your application are likely to charge a considerably higher interest rate. Knowing your credit score in advance will help you be fully aware of your options.

mortgage do's and don'ts credit score

Unfortunately, credit report mistakes are far from rare and can badly damage your credit score. This can lead to you paying a higher interest rate or not qualifying at all. These mistakes can take several months to correct, so check your score early so they can be corrected before you apply.

Learn more about how credit scores are calculated here, and how you can build your rating with a credit card.

Pay down high instalment debt

A high monthly payment for a personal loan or expensive vehicle purchase can have a large, negative impact on your debt service ratios. That can impact the amount of money you can borrow.

If you have sufficient savings, paying off a loan could add tens of thousands of dollars to the mortgage amount you will qualify for.

In a similar vein, try and keep your credit card balances down to below 50% of their credit limit. Higher balances will have an adverse effect on your credit score.

Be transparent with the source of your down payment

Lenders want to see where your down payment came from and will want proof that it is from your own savings, your RRSPs or a gift. You will need to explain any large deposits, especially if they are cash.

mortgage do's and don'ts

File your taxes

Many mortgage lenders want to see proof that you’ve paid your income tax. Your Notices of Assessment are often used to validate your income and lenders also like to see that you’re not in debt to the government. If you haven’t filed your taxes, this could delay your application considerably.


Related: Mortgage tips for first-time homebuyers

Don’t quit your job

Try not to switch jobs just before you apply for a mortgage. If you’re in a probationary period (and this can last as long as three months with some employers) most lenders will want to wait until that’s finished before making you an offer.

Don’t apply for lots of credit cards or make new purchases on credit

Your credit score isn’t just a reflection of how you manage debt, it is also seen as an indicator of possible financial difficulties. If you apply for a bunch of credit cards in a short period of time, this will dent your credit score considerably.

Making a new purchase on credit will also affect your debt service ratios and could reduce the amount you are able to borrow.

Don’t lie on your application

This may sound like an obvious one, but you wouldn’t believe how many people tell “white lies” when applying for a mortgage. Mortgage underwriters are extremely skilled at uncovering the truth, so do yourself a favour and be honest.

Don’t buy a new vehicle

New vehicle payments will count against you on your debt service ratios. A monthly Mercedes payment can be the difference between your dream home and a fixer-upper. Unless your car is falling apart, try to stick with it until after your mortgage closes.

Don’t become self-employed

While being your own boss is many people’s dream, starting your own business just before applying for a mortgage is one of the worst things you can do. At the best of times, being self-employed can make getting a mortgage difficult. If you can’t provide proof of self-employed income for the last two tax years, most lenders won’t finance you.

Stick with your nine-to-five job until you close the mortgage.

Don’t bounce any cheques

This may sound obvious, but a history of bouncing cheques could result in a much higher interest rate or a flat refusal.


If you follow this advice, your mortgage application should be a smoother process. If you’re looking for more help or information on your mortgage application, speak with an ACU financial advisor who will be able to answer any of your questions.

6 mortgage tips for first-time homebuyers


About James Burns

James Burns is a freelance writer and copywriter. With a background in journalism, financial services and marketing, he writes for a wide range of companies across the financial services spectrum. His articles and blogs provide financial advice and insights to both consumers and businesses.

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