The Mortgage Structure That Kills My Repeat Business (and Why I Recommend It Anyway)
I wrote a deal last month where the borrower handed me $340,000 in savings. We structured it so every dollar sits in an offset account linked to her mortgage. She's paying interest on roughly $460,000 instead of $800,000. That's saving her about $1,485 a month at 5.25%, tax-free, compared to keeping the cash in a savings account and paying her full mortgage balance.
She won't call me again for at least a decade, maybe never. That's the point.
The commission structure works against you
Mortgage brokers get paid when loans originate. We get paid again at renewal if the client refinances or switches lenders. The industry runs on a three-to-five-year cycle. Client buys, broker earns. Client renews, broker earns. Client taps equity for a reno, broker earns. It's a recurring-revenue model built into the bones of the business.
An offset mortgage with a readvanceable component breaks that cycle. The structure lets you park savings against your loan balance while keeping full access to the cash. As you pay down principal, your available credit rises in lockstep. Need $60,000 for a kitchen? You pull it yourself, no application, no broker call, no new deal. The lender still makes money, you still have access to liquidity, and I'm completely out of the loop.
I set these up knowing I'm designing myself out of future transactions. The compensation logic points the other way, toward a basic variable-rate mortgage with the lowest possible headline rate and no offset feature. That keeps you coming back.
What the tax-free return actually means
Interest saved is not the same as interest earned, and the gap matters more than most borrowers realize. If you're in a Combined federal-provincial rates vary by province marginal tax bracket and you earn 3.5% in a high-yield savings account, your after-tax return is 2.3%. If you use that same cash to offset a mortgage charging 5.25%, you're avoiding 5.25% in interest expense with no tax bill. The effective return is the full rate.
For someone carrying $800,000 in debt and $340,000 in liquid assets, the math is blunt. Offset the balance, and you're saving $17,850 a year in interest. Keep it separate in a taxable account at 3.5%, and you earn $11,900 gross, $7,735 after tax. The offset nets you an extra $10,353 annually, and that's before you factor in the liquidity advantage of still being able to touch the money if you need it.
The trade-off is discipline. If you treat the offset balance as spending money instead of debt reduction, you'll carry the loan longer and pay more over time. But for clients with stable income and actual savings behaviour, it's the highest-return place to park cash.
Why I push it anyway
Brokers who optimize for transaction count don't show you this structure. Most lenders offer it. It doesn't get recommended unless the client asks directly because the incentive is to keep the mortgage simple, the rate low, and the client needing you again in three years.
The client who never calls me again because they have the tools to manage their own debt is the client who refers me to six other people. Radical trust pays better than renewal commissions, and it pays in a way that doesn't depend on interest rate cycles or refinance volume.
The offset account with equity access is planned obsolescence for my own business. I explain it, I set it up, and I walk away knowing the deal might be the last one I ever write for that household. That's the cost of giving advice instead of selling products. And it's the only way I've found to sleep well in this job.
I wrote a deal last month where the borrower handed me $340,000 in savings. We structured it so every dollar sits in an offset account linked to her mortgage. She's paying interest on roughly $460,000 instead of $800,000. That's saving her about $1,485 a month at 5.25%, tax-free, compared to keeping the cash in a savings account and paying her full mortgage balance.
She won't call me again for at least a decade, maybe never. That's the point.
The commission structure works against you
Mortgage brokers get paid when loans originate. We get paid again at renewal if the client refinances or switches lenders. The industry runs on a three-to-five-year cycle. Client buys, broker earns. Client renews, broker earns. Client taps equity for a reno, broker earns. It's a recurring-revenue model built into the bones of the business.
An offset mortgage with a readvanceable component breaks that cycle. The structure lets you park savings against your loan balance while keeping full access to the cash. As you pay down principal, your available credit rises in lockstep. Need $60,000 for a kitchen? You pull it yourself, no application, no broker call, no new deal. The lender still makes money, you still have access to liquidity, and I'm completely out of the loop.
I set these up knowing I'm designing myself out of future transactions. The compensation logic points the other way, toward a basic variable-rate mortgage with the lowest possible headline rate and no offset feature. That keeps you coming back.
What the tax-free return actually means
Interest saved is not the same as interest earned, and the gap matters more than most borrowers realize. If you're in a Combined federal-provincial rates vary by province marginal tax bracket and you earn 3.5% in a high-yield savings account, your after-tax return is 2.3%. If you use that same cash to offset a mortgage charging 5.25%, you're avoiding 5.25% in interest expense with no tax bill. The effective return is the full rate.
For someone carrying $800,000 in debt and $340,000 in liquid assets, the math is blunt. Offset the balance, and you're saving $17,850 a year in interest. Keep it separate in a taxable account at 3.5%, and you earn $11,900 gross, $7,735 after tax. The offset nets you an extra $10,353 annually, and that's before you factor in the liquidity advantage of still being able to touch the money if you need it.
The trade-off is discipline. If you treat the offset balance as spending money instead of debt reduction, you'll carry the loan longer and pay more over time. But for clients with stable income and actual savings behaviour, it's the highest-return place to park cash.
Why I push it anyway
Brokers who optimize for transaction count don't show you this structure. Most lenders offer it. It doesn't get recommended unless the client asks directly because the incentive is to keep the mortgage simple, the rate low, and the client needing you again in three years.
The client who never calls me again because they have the tools to manage their own debt is the client who refers me to six other people. Radical trust pays better than renewal commissions, and it pays in a way that doesn't depend on interest rate cycles or refinance volume.
The offset account with equity access is planned obsolescence for my own business. I explain it, I set it up, and I walk away knowing the deal might be the last one I ever write for that household. That's the cost of giving advice instead of selling products. And it's the only way I've found to sleep well in this job.
Sources
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