# What is a 'straight switch' at renewal and how does it relate to amortization? > A 'straight switch' happens when you renew your uninsured mortgage with a different lender, without increasing either the loan amount or the amortization period. Category: Renewal Last verified: 2026-02-18 Source: https://ratellow.com/faqs/renewal/what-is-a-straight-switch-at-renewal-and-how-does-it-relate-to-amortization ## Answer * This only applies when transferring an existing stand-alone uninsured mortgage. * There must be no increases to either the remaining contractual mortgage amortization period or the loan amount. ## Institutional highlights - You might not need to pass the mortgage stress test when you renew with a new lender. - This is only if you keep your mortgage amount and payment schedule the same when you switch lenders. - Lenders will still carefully review your ability to repay your mortgage. - Your debt payments compared to your income will be carefully considered. - There are limits on how much you can borrow relative to your income to help manage household debt. ## Related guide - https://ratellow.com/guides/refinance-extend-amortization ## Sources - Property appraisals — https://www.osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-2017#2.4.2 - I. Purpose and scope of the guideline — https://www.osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-2017#1.0 - Mortgage insurance — https://www.osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-2017#2.5.1