What is the Trigger Rate?
- Stephen Aitcheson
- 1 day ago
- 5 min read
Lest pull back the curtain!
Your fixed payment variable-rate mortgage (VRM) has points of caution to watch out for.
Your trigger rate and trigger point are bumps in the (mortgage) road and can affect your goals. Here are some tips to stay on track.

What is a trigger rate?
A trigger rate, identified in your variable mortgage fine print, is the rate reached (as a result of prime rate increases) where your fixed payment is only paying interest with nothing going towards the mortgage principal. Any interest not covered is being added to your mortgage balance.
Hitting your trigger point means your mortgage balance has grown beyond the lender's acceptable ratio for the amount of equity you need to hold vs. the purchase value of your home.
And with less (or nothing) going toward your mortgage principal, you could have a growing negative amortization, meaning your loan length is extending beyond your original contract.
At your next renewal, your amortization will be reset back to your original schedule minus time, resulting in a shock of much higher payments than you might have anticipated or budgeted for. And that's not including facing potentially higher market mortgage rates.
The Trigger-Rate Effect (on your mortgage payment).
For your fixed payment variable-rate mortgage (VRM), your payment amount is set at the beginning of your term. The interest and principal portions are based on your contract rate (including lender discount) and amortization schedule.
If variable rates go up, so does your interest portion, with less going to the principal (read that as 'your amortization is ticking up'). But as you can see, you're paying less and less down on principal well before you hit your trigger rate.
Hitting your trigger rate is your payment's 'last gasp' in that it no longer works for your mortgage terms, and the interest portion has consumed your entire payment amount.
Why is there a trigger rate?
When your payments are fixed despite a variable rate, something else in your mortgage has to give when prime rates move up or down (usually along with a Bank of Canada rate announcement).
That something is how much of your payment is going to interest instead of principal. If your whole payment is going towards interest — that's probably not what you intended for your mortgage goals and potential savings with a variable rate in the first place. And if your amortization is increasing, it'll cost you more for the longer time it will take to pay off your mortgage.
At this point, the lender should contact you to raise your payment (along with other options if you'd prefer to keep your payment amount unchanged).
Use Interest Rate slider to adjust rate to see how it affects the Interest /
Principal and see when a Trigger rate is reached.
How can you avoid payment shock at renewal?
Here are some steps to reduce your risk of much higher payments at renewal if you hit and surpass your trigger rate.
1. Know your trigger rate.
Each big bank has its own way of calculating trigger rates, and even though it's noted in your mortgage fine print (or should be), the trigger-rate goal post can move based on many factors, including previous payment frequency changes or pre-payments made towards your principal.
Contact your bank's mortgage rep or, better yet, talk to your expert at Stephen Aitcheson Mortgage Solutions to help pinpoint your trigger based on your contract and payment history.
Once you know your trigger rate, you can make more informed decisions if variable rates start to rise.
2. Ask your lender to increase your mortgage payment.
If variable rates go up during your term, long before hitting your trigger rate and your lender contacts you to take action, you may want to think about having your payment increased.
Remember that with each rate increase, your payment doesn't adjust, so you're already paying less principal, which means your amortization is getting longer. Even if you don't hit your trigger rate, you'll be in for quite the payment surprise when it comes time to renew — assuming rates don't come down enough or in time to erase the deficit.
Your amortization could double (or more) if you leave your payment unbalanced after a few interest rate hikes.
Being proactive in adjusting your budget with a higher payment now rather than waiting can help you keep your financial goals within sight as you continue to pay down your mortgage.
3. Pay a sufficient lump sum to make your current payment workable again.
If you have extra cash, your broker or lender can help you determine a lump sum amount to put down on your principal that will align your current payment back to your original schedule — or close enough to an amortization that you might better handle at renewal.
The idea is that with every payment after you've placed the lump sum, your amortization should tick down, not go up, but any amount you can manage may help ease a shock later.
4. Switch to a fixed rate.
If you feel you want 'out' — to escape your VRM product to the relative safety of a fixed-rate mortgage — you can break your current term with a 3-month interest penalty (usually less costly than an IRD involved in breaking a fixed-rate mortgage).
Your expert broker can help you decide if your best fixed rate and the penalty involved make (mortgage) sense for your situation and financial goals and to leave your 'trigger point' in the rearview mirror.
5. Take action when your lender contacts you.
If rates go up and you get contacted by your lender, take heed. They'll outline the above options and may even insist on action to avoid the coming payment shock.
What happens if you don't trigger action — and you reach your trigger point?
Some clients, for example, who own rental properties, are okay with waiting for the trigger rate to set any payment changes in motion.
However, the risk is getting caught in the lender's (mortgage) headlights once again by next hitting your trigger point (exceeding a loan amount allowed by the lender based on your purchase price).
Again, the lender will contact you to make a change, such as higher payments, paying a lump sum or switching to a fixed rate — with a finite deadline, usually 30 days. The home can also be re-appraised to determine its Fair Market Value in relation to your loan percentage of the home's price.
This trigger-point marker is an even bigger deal than your trigger rate. The lender is now at higher risk for carrying your mortgage loan, and the next fall-down is mortgage default.
Prepare for what's up the (mortgage) road.
So, while it may seem easy with a busy schedule to wait for the lender to contact you about your VRM's trigger rate, having a proactive strategy will help you stay on top of your mortgage savings goals.
At Stephen Aitcheson Mortgage Solutions I am here for you, — online, over the phone. Give us a shout! You'll get 5-star service and an easy process to make clear mortgage decisions.
250-299-3886
About the Author

Stephen Aitcheson is a mortgage broker based in Summerland, BC, serving homebuyers and homeowners throughout Penticton and the South Okanagan. Through XEVA Mortgage, Stephen helps clients with home purchases, self-employed mortgages, refinancing, construction financing and complex mortgage solutions.
We always do our best to ensure that all information provided is accurate at the time the article was published but as government regulation along with lender rule and requirements change frequently it is always best to contact your local mortgage broker. This will ensure you have the most up to date information and that your mortgage plan is built around your unique financial position as well as current and future goals. Contact me for to get a your free mortgage plan Stephen Aitcheson Mortgage Solutions


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