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Line 72 - Ontario additional tax for minimum tax purposes

Provincial Line 72 - Ontario additional tax for minimum tax purposes

If you need to pay federal minimum tax as calculated on Form T691, Alternative Minimum Tax, complete the calculation on line 72 of your Form ON428 to determine your Ontario additional tax for minimum tax purposes.

Ontario tax reduction

If you were a resident of Canada at the beginning of the year and a resident of Ontario on December 31, 2024, you may be able to claim an Ontario tax reduction.

Only one person can claim the reduction for a dependent child born in 2006 or later (line 75) or a dependant with a mental or physical impairment (line 76).

If you had a spouse or common-law partner on December 31, 2024, only the spouse or common-law partner with the higher net income from line 23600 of their return can claim the amounts on lines 75 and 76.

Note
If your spouse or common-law partner died at any time during the year, you are not considered to have a spouse or common-law partner at the end of year.

You cannot claim the tax reduction if you were subject to the Ontario additional tax for minimum tax purposes.

If you were bankrupt at any time in 2024, you cannot claim the tax reduction on any return for a tax year ending in 2024.

If you are preparing a return for a resident of Ontario who died in 2024, you can claim the tax reduction on their final return as if they were single.

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