Why a fixed payment can conceal a growing mortgage balance
A steady payment can make a variable-rate mortgage feel predictable. But when the rate rises, more of that payment goes towards interest and less towards reducing the balance. For a property investor, the question is not only whether this month's rent covers this month's payment. It is also what is happening to the debt you will eventually need to renew, refinance or repay.
What is a mortgage trigger rate?

With a fixed-payment variable mortgage, the trigger rate is the rate at which the payment covers interest without reducing principal. Beyond that rate, the scheduled payment may no longer cover the interest due. This differs from an adjustable-payment mortgage, whose payment changes with the rate.
Your lender's agreement determines what happens next. Do not assume every mortgage increases its payment at the same threshold. Ask the lender to explain both the trigger rate and any separate balance threshold or trigger point in your contract. If you are comparing a change to a fixed rate, our variable-to-fixed guide explains the questions to ask.
Review your payment, balance and amortization
Pull out the agreement and your latest mortgage statement. Confirm the current balance, rate, scheduled payment, amount applied to principal and any interest added to the balance. Ask whether the displayed amortization has changed and what that means for the next renewal.
For a portfolio, put those figures beside each property's rent and operating costs. A mortgage that appears manageable on one property can still restrict what you can do across the holdings. Compare the effect on total cash flow, upcoming renewals and the funds you need for repairs or another investment.
Compare higher payments, a lump sum and changes to your mortgage

Your lender may discuss a higher payment, a permitted lump-sum payment or a change to the mortgage. Contact the lender early if you may have difficulty meeting payments. The options and conditions depend on the lender and your circumstances.
Before choosing, compare the payment you can sustain, cash you would need upfront, penalties and other costs, and the flexibility you may need if you sell or refinance. Converting to fixed can change rate exposure, but the new term and exit costs still matter. Refinancing can change the monthly payment while extending repayment or adding costs.
A payment change should address the immediate cash-flow problem without overlooking the costs and mortgage conditions it creates. Compare those effects with your plans for the property before agreeing to a new term.
Request a review of your mortgage payments and rental cash flow
Gather the mortgage statement and agreement, current rental income and property expenses, upcoming renewal dates, and your immediate concern. Is the priority payment relief, restoring principal repayment or preserving flexibility for a later move?
The complimentary Portfolio Financing Review starts with your goals and reviews each property’s value, mortgage, payments and rental income alongside the portfolio’s total income and costs. Streetwise assesses whether financing changes could ease payment pressure or support your other priorities. Contact Streetwise to request a review. Any proposed financing remains subject to lender assessment and applicable conditions.
Watch Dalia’s original explanation
What is the trigger rate and how to manage it?
The recording discusses the 2022 rate cycle. Its historical rates and term recommendations do not establish today’s mortgage terms or the best option for your circumstances.



