If you are subject to minimum tax under the federal Income Tax Act, you are also subject to British Columbia minimum tax.

The British Columbia minimum tax is calculated as:

For years prior to 2002, British Columbia minimum tax is calculated as 49.5% of the federal increase in tax payable under the federal minimum tax rules.

For certain types of income, if you receive a retroactive lump sum payment which includes amounts for previous years of $3,000 or more (not including interest), you may request federal tax be calculated on the amounts as if they were received in the year to which they relate.

Eligible types of income include pension, employment or unemployment insurance benefits, and spousal or child support payments.

The provincial tax on retroactive amounts is 49.5% of the federal tax.

Certain specified individuals under the age of 18 must calculate British Columbia tax on their split income using the highest British Columbia tax rate.

The only credits that may be deducted against tax on split income are the Dividend Tax Credit and the Foreign Tax Credit.