The ON 428 form is based on the federal taxable income, so use the Net Income before Tax calculated above for the Ontario tax calculation. Again, use the appropriate tax brackets and rates for Ontario for the tax year 2022. Remember, tax calculations can be intricate, and it is advisable to use tax preparation software or seek assistance from a tax professional for accurate results.

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To calculate the Ontario tax using the ON 428 form based on the net income before t... View the full answer