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Mortgage & Finance · Jun 28, 2026 · 6 min read
📖 Mortgage & Finance

What Is a Variable Mortgage ‘Trigger Rate’ — and Why It’s Less Scary in 2026

On a fixed-payment variable mortgage, there’s a rate where your payment stops paying down principal

Arthur Zhao · Broker · AZ Real Estate Partners · 2026-06-28
Quick Answer

What does a variable-rate ‘trigger rate’ actually mean?

The trigger rate is the point where your fixed monthly payment covers only interest and pays down none of the principal.According to the Bank of Canada (2022), this applies only to fixed-payment variable mortgages (VRMFP), which make up roughly 75% of Canadian variable mortgages. Above the trigger rate, the fixed payment no longer even covers interest, and the unpaid interest is added to the balance — known as negative amortization.

Sources: Bank of Canada (trigger-rate research and policy rate); FCAC / canada.ca (trigger rate and negative amortization definitions); OSFI.

The fast rate hikes of 2022–2023 cost a lot of variable-rate borrowers sleep — their payment hadn’t changed, but the statement showed almost all of it going to interest. Behind that are two concepts: the trigger rate and the trigger point. The good news is that by 2026, with rates well down, the risk is far smaller than it was. Here’s the full picture, and what you can do.

Know your two variable types

Payment = interest only = trigger rate

Balance exceeds original = trigger point

Lender requires action

Lower rates ease the risk
1

First, two kinds of variable — only one has a trigger rate

Canada has two variable structures: fixed-payment variable (VRMFP) — the payment dollar amount stays constant for the term, so a rate rise just shifts the principal/interest split; and adjustable-payment (ARM) — the payment itself recalculates whenever the rate changes. The trigger rate exists only in the fixed-payment type, because only it can develop a shortfall. According to the Bank of Canada (2022), about 75% of Canadian variable mortgages are fixed-payment, so the issue is widespread.

ℹ️Rule-of-thumb note: ‘trigger rate ≈ annual payment ÷ balance’ is a simplified estimate to give you a feel, not the exact contract math (lenders compounding semi-annually or monthly will differ). For the precise figure, ask your lender.

2

Trigger rate: where payment covers only interest

When a fixed-payment variable rate climbs to the point where the payment exactly equals the interest due, you’ve hit the trigger rate — 100% of the payment goes to interest and nothing to principal. A handy estimate (rule of thumb, not exact math): trigger rate ≈ (monthly payment × 12) ÷ outstanding balance. So a larger balance or a longer original amortization means a lower trigger rate (easier to hit); the more principal you’ve repaid, the higher the trigger rate.
3

Trigger point: balance grows past the original principal

Above the trigger rate, the fixed payment can’t even cover interest; the shortfall is added to the balance, which starts to grow — that’s negative amortization. When the balance rises past the original principal you borrowed, you reach the trigger point, defined in the contract and set by the lender. At that point the lender typically contacts you and requires one or more of: increase the payment, make a lump-sum prepayment, or convert to fixed / renegotiate to restore the schedule.

The trend is your friend: according to the Bank of Canada, the policy rate has fallen from about 5% at the 2023 peak to 2.25% in June 2026. For fixed-payment variable holders, that means more of each payment returns to principal and new negative amortization has largely stopped.

4

2026: rates have fallen, risk has eased

Why is it less alarming now? Look at the path (all Bank of Canada): the policy rate peaked at about 5.00% in July 2023, the first cut to 4.75% came on June 5, 2024, and it fell steadily to 2.25%, held on June 10, 2026 — roughly 275 basis points below the peak. At the peak, up to about 80% of fixed-payment variable mortgages had reached their trigger rate by end of November 2023. With rates now well down, most variable rates sit back below the trigger rate, and payments are returning to principal again.
5

What you can do: four options

If you’re near or above the trigger rate/point, according to FCAC the usual moves are: (1) increase the payment so it again covers interest plus scheduled principal — the most direct fix; (2) make a lump-sum prepayment to cut principal and push the trigger rate back up (mind your annual prepayment limit to avoid penalties); (3) convert to a fixed rate to lock the payment and remove trigger-rate risk (giving up the upside of further cuts); (4) refinance to re-amortize and lower the payment (possible costs and re-qualification).

Frequently Asked Questions

Q

Could today’s rates still hit my trigger rate?

A

For most borrowers, no. According to the Bank of Canada, the June 2026 policy rate is 2.25%, well below the ~5% peak of 2023. Trigger-rate risk peaked when rates peaked; with rates down, most fixed-payment variable mortgages now sit below their trigger rate again.

Q

What’s the difference between trigger rate and trigger point?

A

The trigger rate is about a rate level — where the payment stops reducing principal. The trigger point is about a balance level — when the balance grows past what you originally borrowed. You hit the trigger rate first; the trigger point comes only after sustained operation above it.

Q

Does an adjustable-payment variable mortgage have a trigger rate?

A

No. An ARM recalculates the payment whenever the rate moves, so it always covers interest plus scheduled principal — there’s no shortfall and therefore no trigger rate. The trigger rate only affects fixed-payment (VRMFP) mortgages.

Q

Should I convert to a fixed rate now?

A

It depends. Converting locks your payment and removes trigger-rate risk, but you give up the benefit of any further rate cuts. With rates already down in 2026, it’s a genuine trade-off with no one-size answer — weigh your balance, risk tolerance and plans, and run the numbers with a mortgage professional if unsure.

Have a Question?

Arthur Zhao

Real Estate Broker · FRI · ABR · SRS · PSA · MCNE · E-PRO · GUILD Elite

VP & Branch Manager, Bay Street Group Inc.

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作者简介About the author
Arthur Zhao
Real Estate Broker · FRI · ABR · SRS · PSA · MCNE · E-PRO · GUILD Elite
VP & Branch Manager, Bay Street Group Inc.

为大多伦多地区客户服务的双语经纪。专注于为首购、投资者和跨境家庭提供有结构的策略。先看透,再落笔。Bilingual broker serving the Greater Toronto Area. Specialty: structured strategy for first-time buyers, investors, and cross-border families. Knowledge before commitment.

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