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Converting a variable mortgage to fixed: what to compare

Compare a variable-to-fixed mortgage offer with your current payment, remaining term, amortization and plans to sell or refinance the property.

Establish why you want to change your mortgage

Converting a variable mortgage to fixed changes more than the interest rate. The new payment, term and conditions need to address the reason you want to convert, whether that is a rising payment, slower principal repayment or uncertainty about future interest costs.

Compare the lender’s actual conversion offer with your current mortgage and any plans to sell, refinance or make additional payments. A fixed rate can provide rate certainty while leaving other costs or restrictions to assess.

In the archived Adapt & Thrive interview, Dalia Barsoum and Dustan Woodhouse discuss how a response to rate pressure can change a borrower's future commitments. The interview reflects the 2022 market. Its forecasts and general preference for variable mortgages should not determine whether a specific conversion offer suits you today.

Review your current mortgage payment, balance and contract

An illustrative wordless architectural plan, barn-red notebook and clear model

Check the current rate, payment, balance and renewal date. Ask how much of the payment is reducing principal and whether unpaid interest is being added to the debt.

With a fixed-payment variable mortgage, rising interest can reduce principal repayment even while the scheduled payment stays unchanged. Your agreement and lender explain the thresholds and response that apply.

If this is the concern you are addressing, read the trigger-rate guide. A payment you can carry and a repayment path you understand both belong in the decision.

Get the fixed-rate conversion offer in writing

A variable-to-fixed conversion may be available through your financial institution. Ask what it would offer for your mortgage rather than assuming an advertised rate or term applies.

Use the offer and your current agreement to work through these questions:

What to compare

Question to resolve

Rate and payment

What would the new rate and payment be, and when would they start?

Contract end date

When would the new term finish compared with the current one?

Repayment period

What amortization would apply, and how would principal be repaid?

Costs now

Are there conversion charges or other costs to make this particular change?

Changes later

What would the new terms mean if you sold, refinanced or made extra payments?

Offer timing

How long is the offer available, and what must happen to accept it?

The lender’s written offer should establish which rates, terms, costs and conditions apply to your mortgage.

Compare rate certainty with the new term and mortgage conditions

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A fixed rate removes rate changes during its term. You still need to assess whether the resulting payment is sustainable and whether the contract fits what you may do with the property.

If the change also extends repayment, consider the interest cost over time alongside any immediate payment relief. If you may sell or refinance, ask how the new contract would treat that action. Breaking a closed mortgage early normally involves a prepayment penalty; the applicable costs depend on the agreement and the change.

A conversion through your existing lender and replacing a mortgage with another lender are different proposals. Confirm the process and costs of the option actually in front of you.

Contact your lender early if mortgage payments are becoming difficult

If you may have difficulty making payments, contact your financial institution early and ask about the options for your circumstances. Do not wait for a rate forecast to resolve an immediate payment problem. Relief measures can have longer-term costs, so ask what each option would change.

For rental holdings, bring the mortgage figures together with the property's income, expenses and the mortgages and other debts across your portfolio. The complimentary Portfolio Financing Review starts with your priorities and reviews the holdings individually and together.

For your own home, explore home financing. You can also contact Streetwise with the offer and the question you want to work through.

Watch the original interview

Adapt & Thrive: Expert Interview with Dustan Woodhouse

The recording contains historical rate expectations, product preferences and a guest-reported client example. Those are part of the archived discussion, not current recommendations or typical outcomes. Compare today’s written offer and mortgage agreement rather than relying on the recording’s rates or examples.