In Canada, corporations may claim a small business deduction
(SBD) on their corporate tax returns, effectively reducing the
corporate tax rate on the first $500,0001 of taxable
income from active business income (ABI). ABI does not include
aggregate investment income.
Aggregate investment income (AII) includes:
- taxable capital gains in excess of
allowable capital losses (current, carried forward, carried back);
and
- property income (i.e. interest
income, rental income, royalties, and dividends included in
calculating taxable income).
All is calculated net of expenses. The Canada Revenue Agency
(CRA) permits a reasonable allocation of direct and indirect
expenses when determining All, including rental expenses, advisory
and professional fees, etc.