Smith Manoeuvre + Cash Damming Calculator
Own rental properties? See how combining the Smith Manoeuvre with cash damming could put your equity and rental cash flow to work — converting non-deductible debt into a tax-deductible investment loan. Answer a few quick questions for an instant estimate. No obligation, and it takes under a minute.
How these two strategies work together
The Smith Manoeuvre converts the equity in a home into a tax-deductible investment loan, one re-advance at a time, as your mortgage principal gets paid down. Cash damming uses your rental income to accelerate that paydown — rent covers your non-deductible primary mortgage, while a separate credit facility covers deductible rental expenses. Owning rental properties gives you two sources of leverage at once: the equity available to re-advance, and the cash flow available to accelerate paydown. This calculator is built to show both working together.
Want the full picture first? Read how the Smith Manoeuvre works and how cash damming works on their own pages.
Before you rely on the numbers
Combining these strategies depends on clean separation between rental and personal cash flow, properly documented use of borrowed funds, and lender approval for the refinance amounts shown. Interest is only deductible where the borrowed money is used to earn income, and the rules are specific to your situation. This calculator does not assess suitability — that takes a real look at your properties, your existing debt, and your tax position.
Frequently Asked Questions
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