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The maths on cashback refinances.

A $3,000 cashback looks great on a billboard. It's also why some clients end up on a rate that costs them four times that in extra interest over the next five years.

When cashback is worth taking

Lenders offer cashback to win new business, usually as a one-off payment of $2,000 to $4,000 on refinance, sometimes more. The question to ask is what rate you're moving to, and whether it will stay competitive for the next five years or more.

On a $600,000 loan balance, a 0.15% higher rate costs about $900 a year in extra interest. Over five years that's roughly $4,500, which can be more than the cashback paid you upfront. On a $400,000 loan the same difference costs $600 a year, and there a $3,000 cashback does come out ahead. Balance and remaining term both matter. What the lender does to your rate six months after settlement matters most.

Cashback FAQs

How long is the cashback locked in?
The cashback is a one-off, but most lenders require you to hold the loan for 6 to 12 months before refinancing away, or the cashback is clawed back. Read the fine print.
Is the rate competitive?
Sometimes. A better test is whether you'd pick this lender with no cashback at all. If yes, treat the cashback as a bonus. If no, the cashback is covering for a rate that will cost you more over time.
Can I stack cashback offers by refinancing repeatedly?
In theory, yes, and historically some borrowers did exactly that. In practice, lenders have tightened retention rules, and after a while your credit file starts to show a churn pattern. We don't recommend it.

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General advice disclaimer. The information on this page is general in nature and does not take into account your personal objectives, financial situation or needs. You should consider whether it is appropriate for you before acting on it, and seek professional advice where relevant.

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