# Should I break my mortgage to switch lenders?

> Break a mortgage to switch lenders only when the prepayment penalty plus discharge, legal, and appraisal fees, plus any cash-back clawback, divided by your monthly savings, is fewer months than you have left. If that payback is longer than the months remaining, wait for renewal or ask for a blend-and-extend. A straight switch at renewal has no prepayment penalty, and an uninsured straight switch has not required the stress test since November 21, 2024.

Category: Refinance
Last verified: 2026-10-19
Source: https://ratellow.com/faqs/refinance/should-i-break-my-mortgage-to-switch-lenders

## Answer
Break the mortgage to switch lenders only when the payback is shorter than the time you have left.

**Break-even months = (prepayment penalty + discharge fee + legal fees + appraisal + any cash-back clawback) ÷ monthly savings.**

Compare that result with the months remaining before renewal.

- If break-even months are fewer than the months left, the switch can pay for itself before renewal.
- If break-even months are longer, do not break. Wait for renewal, or ask the current lender for a blend-and-extend, which blends the existing rate with today's rate and usually avoids the penalty.

A straight switch at renewal has no prepayment penalty. Since November 21, 2024, an uninsured straight switch — same loan amount, same or shorter remaining amortization, no cash-out — is exempt from the prescribed stress test. A refinance that increases the amount, lengthens the amortization, or takes cash out is still tested at the greater of the contract rate plus 2 percentage points or 5.25%.

Price the penalty with the [penalty calculator](/mortgages/penalty-calculator). Add discharge, legal, appraisal, and any cash-back clawback with the [switch cost calculator](/mortgages/switch-cost-calculator). The full walkthrough is the [refinance break-even guide](/guides/refinance-break-even).

## Institutional highlights
- Break-even months equal the penalty plus discharge, legal, appraisal, and any cash-back clawback, divided by the monthly saving.
- If that payback is longer than the months left, wait for renewal or ask for a blend-and-extend.
- An uninsured straight switch at renewal has not required the prescribed stress test since November 21, 2024.

## Related guide
- https://ratellow.com/guides/refinance-break-even

## Sources
- OSFI straight-switch rule — https://www.osfi-bsif.gc.ca/en/guidance/guidance-library/osfi-exempts-uninsured-mortgage-straight-switches-prescribed-mqr-implements-portfolio-lti-limits
- OSFI Guideline B-20 — https://www.osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-2017
- Mortgage penalty calculator — https://ratellow.com/mortgages/penalty-calculator
- Switch cost calculator — https://ratellow.com/mortgages/switch-cost-calculator