In Canada, some taxpayers are required not only to file their annual tax return, but also to pay income taxes in advance through installments. This is known as Installment Tax. Many newcomers, self-employed professionals, and business owners are unfamiliar with this system and assume they only need to pay once a year at tax filing time. In reality, failing to make installment payments can result in interest charges and penalties. This article explains how installment tax works, who needs to pay it, and how to avoid unnecessary costs.
What Is Installment Tax?
Installment Tax is essentially a system of paying your income tax in installments throughout the year, based on your expected tax liability.
- It’s not an extra tax – just a way of paying your regular income tax in smaller amounts ahead of time.
- Payment frequency:
- Individuals typically pay four times per year (March, June, September, December).
- Corporations usually pay monthly, though some eligible Canadian-controlled private corporations (CCPCs) may opt for quarterly payments.
Why Does Canada Have Installment Tax?
The Canadian tax system is designed so that:
- Employees: Income tax is deducted at source by employers.
- Self-employed individuals, investors, and business owners: No automatic tax deductions apply, so the CRA requires installment payments to spread out the tax burden and prevent a large lump-sum payment at tax filing.
Example:
If you are self-employed and earn $100,000 in a year with an estimated tax bill of $25,000, the CRA will typically require you to pay $6,250 every three months instead of waiting until next April to pay the full amount.
What Happens If You Don’t Pay?
Failing to make required installment payments can lead to:
- Interest: Calculated daily at CRA’s prescribed rate (compounded quarterly).
- Penalties: If your interest exceeds $1,000, the CRA may impose an additional penalty.
⚠️ Important: These interest and penalty amounts are not tax deductible, and CRA’s rates are usually higher than standard bank loan rates.
Who Needs to Pay Installment Tax?
For Individuals
You must pay in installments if, in each of the past two years, your net tax owing (after withholdings) was more than:
- $3,000 (for most provinces and territories)
- $1,800 (for Quebec residents)
For Corporations
If your corporation owed more than $3,000 in income tax in the previous year, installment payments are required:
- Most corporations: monthly
- Eligible small CCPCs: quarterly
💡 First-time installment payers may only receive CRA reminders for September and December payments. This happens when you only recently crossed the threshold.
How Do You Know If You Must Pay?
- The CRA will send an Installment Reminder by mail or electronically at the beginning of the year.
- You can also check your CRA My Account or My Business Account.
- Even if you don’t receive a reminder, you are still responsible for making payments if you meet the criteria.
Practical Tips
- Pay on time: Set up online banking payments or pre-authorized debits to avoid missed deadlines.
- Adjust when needed: If your income is lower this year, you may request a reduction in installment amounts.
- Plan ahead: Treat installment payments as a fixed expense and build them into your cash flow planning.
- Don’t ignore CRA: Interest and penalties are applied strictly and are rarely waived due to “forgetting.”
Conclusion
Installment Tax is not an additional tax – it’s a way to spread out your tax payments and reduce financial stress at year-end. Ignoring CRA’s installment requirements can result in unnecessary interest and penalties.
At our firm, we help individuals and businesses determine whether installment tax applies to them, calculate accurate amounts, and plan cash flow accordingly. If you have questions about your obligations or would like guidance on managing your tax installments, feel free to reach out to us for professional advice.