Mortgage Renewal Payment Shock Calculator

It depends on your balance, remaining amortization and the rate spread. A $450,000 balance renewing from 2.79% to 5.5% over 20 years jumps roughly $640 a month — run your own numbers above.

You have more options than the renewal letter suggests: re-extending the amortization to 25–30 years, consolidating card and loan debt into the renewal so the household total drops, or moving the file to a B lender that prices your situation properly. Signing an unaffordable renewal and falling behind is the one outcome to avoid.

Yes — renewal is not automatic. Missed payments, bruised credit, or changed income can all trigger a non-renewal notice. You cannot be forced out overnight: B and private lenders take declined-renewal files every week, and starting early keeps the pricing reasonable.

Not if you renew with your current lender. And since November 2024, a straight switch to another federally regulated lender is also stress-test-free — for both insured and uninsured mortgages — as long as the loan amount and amortization don’t increase. Refinancing with new money is where full requalification applies.

Often yes — if you’ve got equity, re-amortizing from 18 remaining years back to 25 or 30 can offset most of a rate jump. It costs more interest over time, but it keeps the payment survivable, and you can shorten it again when rates or income improve.

About 180 days out. That’s when rate holds begin, when switching is cheapest, and when a bruised-credit file has time to be packaged properly instead of rushed.