Tax Deduction Calculator Ontario 2018
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Reviewed by Calculator Editorial Team
Use this tax deduction calculator to determine how much you can deduct from your Ontario taxable income in 2018. The calculator provides an estimate based on the 2018 tax year rules and your specific deductions.
How to Use This Calculator
To calculate your tax deductions for Ontario in 2018:
- Enter your total taxable income for 2018.
- Select the type of deduction you qualify for.
- Enter the amount of the deduction.
- Click "Calculate" to see your estimated tax deduction.
The calculator will show you the total amount you can deduct from your taxable income, which will be subtracted from your total taxable income to determine your taxable income for the year.
Formula Used
The tax deduction calculator uses the following formula to calculate your tax deduction:
Taxable Income After Deduction = Taxable Income - Deduction Amount
Where:
- Taxable Income is your total income minus any non-deductible expenses.
- Deduction Amount is the total amount you can deduct from your taxable income.
This formula provides an estimate of your taxable income after deductions. For exact calculations, consult a tax professional or use official government tax forms.
Worked Examples
Example 1: Home Office Deduction
If your taxable income is $50,000 and you qualify for a home office deduction of $5,000, the calculation would be:
Taxable Income After Deduction = $50,000 - $5,000 = $45,000
Your taxable income after the deduction would be $45,000.
Example 2: Medical Expenses Deduction
If your taxable income is $60,000 and you qualify for a medical expenses deduction of $3,000, the calculation would be:
Taxable Income After Deduction = $60,000 - $3,000 = $57,000
Your taxable income after the deduction would be $57,000.
Frequently Asked Questions
- What types of deductions are available in Ontario for 2018?
- Common deductions in Ontario for 2018 include home office expenses, medical expenses, charitable donations, and investment losses. The calculator supports these and other eligible deductions.
- How do I know if I qualify for a specific deduction?
- Qualification for deductions depends on the type of deduction and your specific circumstances. For example, home office deductions require you to use a portion of your home exclusively for business purposes. Consult the Canada Revenue Agency (CRA) guidelines or a tax professional for specific eligibility requirements.
- Can I deduct all my eligible expenses?
- No, there are limits to how much you can deduct for certain expenses. For example, medical expense deductions are limited to 3% of your net income. The calculator provides an estimate, but you should verify the exact limits with the CRA or a tax professional.
- Is the calculator's result exact or an estimate?
- The calculator provides an estimate based on the information you provide. For exact calculations, use official tax forms and consult a tax professional.
- How do I apply the deductions to my tax return?
- After calculating your deductions, you can apply them to your tax return by completing the appropriate sections of the T1 General Tax Form. The CRA provides detailed instructions on their website.