If you owe taxes regularly in Canada, the Canada Revenue Agency (CRA) may require you to make tax instalment payments during the year instead of waiting until you file your tax return.
Many taxpayers are surprised when they receive an instalment reminder from CRA — especially self-employed individuals, investors, landlords, or people with multiple income sources.
This guide explains:
Tax instalments are periodic payments made throughout the year toward your expected personal income taxes.
Instead of paying your full tax bill at tax filing time, CRA may require you to prepay taxes quarterly.
Instalments apply to:
Canada’s tax system operates on a “pay-as-you-earn” basis.
Employees usually have taxes deducted from payroll automatically. However, many types of income do not have enough tax withheld at source.
If you consistently owe taxes when filing your return, CRA may require quarterly instalments to avoid taxpayers carrying large balances until the following year.
Generally, CRA may require instalments if:
“Net tax owing” generally means:
Self-employed individuals usually do not have taxes withheld throughout the year, making instalments very common.
Examples:
Rental profits generally do not have tax withheld, so landlords may accumulate large balances owing.
Instalments are common when taxpayers receive:
Sometimes payroll deductions are not enough to cover total taxes owed.
This may happen when:
CRA generally uses one of three methods.
CRA bases instalments on your prior tax balances.
Example:
Typical due dates:
This is the method shown on CRA instalment reminders.
You estimate your current year taxes based on the previous year’s income.
Useful if your income is similar year over year.
You estimate taxes based on your actual expected income for the current year.
This method may reduce instalments if income has decreased.
However:
If you underestimate and end up owing more, CRA may charge instalment interest.
CRA charges instalment interest when:
The CRA compares:
Interest is calculated daily at prescribed CRA rates, which can change quarterly.
Suppose CRA expected:
| Due Date | Required |
|---|---|
| March 15 | $2,500 |
| June 15 | $2,500 |
But the taxpayer pays:
Even though the total was eventually paid, CRA may still charge interest because the March and June payments were late.
CRA calculates interest based on timing, not just total paid.
Additional instalment penalties may apply if:
The penalty formula is complex, but generally applies when taxpayers repeatedly fail to make required instalments.
Possible consequences include:
CRA may also continue issuing instalment reminders in future years.
Yes.
If your income decreases, you can choose the Current-Year Option and reduce instalments accordingly.
Examples:
Important:
You should keep calculations and supporting records in case CRA reviews your estimates.
You can review instalments in:
Through Canada Revenue Agency My Account:
You can also view:
Common payment methods include:
Always ensure payments are applied to:
Many taxpayers wait until tax season to think about taxes owed.
However, if you are:
It is important to estimate taxes throughout the year to avoid:
CRA instalments are not an audit or penalty by themselves.
They are simply CRA’s way of ensuring taxes are paid gradually throughout the year when insufficient taxes are withheld at source.
Understanding how instalments work can help you:
If you are unsure whether your instalments are correct, or if your income has changed significantly, it may be beneficial to speak with a tax professional to review your situation and estimate your taxes properly.
Book a free consultation call with us