# Why is the variable-to-fixed conversion rule so critical?

> Most lenders allow borrowers to convert to a fixed rate mid-term for free, provided the new term is equal to or longer than the remaining variable term.

Category: Product Mechanics
Last verified: 2026-02-18
Source: https://ratellow.com/faqs/product-mechanics/why-is-the-variable-to-fixed-conversion-rule-so-critical

## Answer
### Data Summary

- Market Share: 25% of 2026 originations are variable.
- Best Practice: Start variable to keep penalties low, then lock in if the yield curve flattens.

## Related guide
- https://ratellow.com/guides/variable-vs-adjustable-rates

## Sources
- Bank of Canada Staff Analytical Note 2025-21 — https://www.bankofcanada.ca/2025/07/staff-analytical-note-2025-21/#Introduction