Home mortgage interest deduction

A home mortgage interest deduction allows taxpayers who own their homes to reduce their taxable income by the amount of interest paid on the loan which is secured by their principal residence (or, sometimes, a second home). Most developed countries do not allow a deduction for interest on personal loans, so countries that allow a home mortgage interest deduction have created an exception to those rules. The Netherlands, Switzerland, and the United States each allow the deduction. In Belgium, Denmark, Ireland and Sweden, only a minor part of mortgage interest is deductible.

Canadian federal income tax does not allow a deduction from taxable income for interest on loans secured by the taxpayer's personal residence, but homes used in businesses as a landlord who owns a rental residential property can deduct interest as any other reasonable business expense. The difference being the deduction is allowed only when the property is not used for the taxpayer's personal use but is used as in any other type of business. However, there may be additional exclusions for passive activity losses.

An indirect method, known as the Smith Manoeuvre, for making interest on mortgage for personal residence tax deductible in Canada is through an asset swap, whereby the homebuyer sells his existing investments, purchases a house in full or in part by the sale, gets a mortgage on the house, and finally, buys back his investments with the money from the mortgage. The Supreme Court of Canada has ruled in 2001 in the Singleton v. Canada case that transactions in the asset swap are to be regarded as distinct, thus rendering the interest on home mortgage acquired as part of the asset swap tax deductible.

The home ownership rate in Canada was about the same as in the United States in 2008 despite the difference in tax policy.

In Denmark part of the interest I deductible. In 1987 it was 73%. In 1993 it was 50% and in 1998 it was 46%. From 1998 to 2001 it was reduced to 32%. It is the plan that in 2019 it will be 25,5%.

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