Negative gearing

Negative gearing is a form of financial leverage whereby an investor borrows money to acquire an income-producing investment property and expects the gross income generated by the investment, at least in the short term, to be less than the cost of owning and managing the investment, including depreciation and interest charged on the loan (but excluding capital repayments). The investor may enter into such an arrangement and expect the tax benefits (if any) and the capital gain on the investment, when the investment is ultimately disposed of, to exceed the accumulated losses of holding the investment. The investor would take into account the tax treatment of negative gearing, which may generate additional benefits to the investor in the form of tax benefits if the loss on a negatively geared investment is tax-deductible against the investor's other taxable income and if the capital gain on the sale is given a favourable tax treatment. Some countries, including Australia, Japan, and New Zealand, allow unrestricted use of negative gearing losses to offset income from other sources. Several other OECD countries, including the US, Germany, Sweden, and France, allow loss offsetting with some restrictions. In Canada, losses cannot be offset against wages or salaries. Applying tax deductions from negatively geared investment housing to other income is not permitted in the UK or the Netherlands. With respect to investment decisions and market prices, other taxes such as stamp duties and capital gains tax may be more or less onerous in those countries, increasing or decreasing the attractiveness of residential property as an investment.

Negative gearing may also apply to borrowing to purchase shares whose dividends fall short of interest costs. A common type of loan to finance such a transaction is called a margin loan. The tax treatment may or may not be the same.

...
Wikipedia