Not everyone needs to make CRA instalment payments, it depends on your situation. If your net tax owing exceeds $3,000, you may be required to make quarterly payments to avoid interest charges.
Let’s break down everything you need to know about tax instalments in Ontario so you can stay compliant and avoid unnecessary penalties.
What Are CRA Instalment Payments?
Tax instalments are advance payments you make throughout the year toward your income tax bill. Think of them as pay-as-you-go taxes. Instead of owing one large sum when you file your return, the Canada Revenue Agency (CRA) requires certain taxpayers to spread their payments across the year in quarterly instalments.
This system helps ensure that tax obligations are met gradually and reduces the risk of a significant financial burden at tax time.
Who Needs to Pay Tax Instalments?
You may be required to pay tax instalments for 2026 if your net tax owing is more than $3,000 ($1,800 for Quebec residents) for 2026 and in either 2025 or 2024.
Net tax owing is the amount you owe after all deductions, credits, and withholdings are applied. It’s not your total income tax, it’s what’s left after accounting for any taxes already withheld at source.
Common Situations That Trigger Instalment Requirements:
- Self-employed individuals who don’t have taxes deducted at source
- Investment income earners with rental properties, dividends, or capital gains
- Business owners who pay themselves through dividends rather than salary
- Retirees with multiple income sources where taxes aren’t fully withheld
- Side hustlers earning substantial income outside of regular employment
If you received an instalment reminder from the CRA in 2026, but your 2026 net tax owing is $3,000 or less, you do not have to pay tax instalments for 2026. However, if you’re close to this threshold, it’s worth reviewing your situation with a tax professional to avoid surprises.
2026 Instalment Payment Deadlines
For most individuals required to pay instalments, the CRA has set four key deadlines in 2026:
- March 15, 2026 – (falls on Sunday, so payment due March 16)
- June 15, 2026
- September 15, 2026
- December 15, 2026
When a due date falls on a Saturday, Sunday, or a public holiday recognized by the CRA, your payment is considered on time if it’s received on the next business day.
Special Rules for Farmers and Fishers
If your main source of income is from farming or fishing, you only have one instalment payment due per year. You’ll receive a reminder in November, and your payment must be made by December 31.
How Does the CRA Calculate Your Instalments?
The CRA sends instalment reminders twice a year, in February (for March and June payments) and in August (for September and December payments). These reminders suggest how much you should pay based on your previous tax returns.
You have three options to calculate your instalments:
Option 1: No-Calculation Option
Pay the amount indicated on your CRA reminder. This is the simplest approach and ensures you won’t face interest charges, provided the amount suggested is accurate.
Best for: Those whose income, deductions, and credits remain relatively stable year over year.
Option 2: Prior-Year Option
Base your instalment payments on your 2024 tax return. This option works well if your 2025 income, deductions, and credits are similar to 2024 but significantly different from 2023.
Best for: Those whose financial situation in 2025 closely mirrors 2024.
Option 3: Current-Year Option
Estimate your 2025 income, deductions, and credits to calculate your instalments. This option gives you the most control but requires careful planning.
Best for: Those whose 2025 income will be significantly different from both 2024 and 2023, such as someone who started a business mid-year or sold a major asset.
Important: If you underestimate using Option 3, you could face interest charges even if you pay on time. The CRA will calculate interest based on the instalment option that results in the least amount of interest owed.
What Happens If You Don’t Pay on Time?
The CRA doesn’t take missed or late instalment payments lightly. Here’s what could happen:
Instalment Interest
The CRA charges compound daily interest on late or insufficient instalment payments at the prescribed interest rate, which changes every three months. This interest accrues from the due date until your balance is paid.
Instalment Penalty
You may also face a penalty if your instalment interest charges for 2026 exceed $1,000. The CRA calculates this penalty by:
- Determining which amount is higher:
- $1,000, or
- 25% of the instalment interest you would have paid if you had made no instalments at all
- Subtracting that higher amount from your actual instalment interest charges
- Dividing the difference by 2
This penalty is designed to discourage chronic underpayment, so it’s important to make accurate and timely payments.
How to Reduce or Eliminate Instalment Payments
If you’d rather not deal with quarterly instalments, there are strategies to reduce or eliminate them:
Increase Tax Withholding at Source
If you have income from employment, pension, or certain other sources, you can request that more tax be withheld. This can bring your net tax owing below the $3,000 threshold.
- For employment income, complete Form TD1 and submit it to your employer
- For pension income, use Form ISP3520OAS and send it to Service Canada
- For Old Age Security (OAS), complete the voluntary federal income tax deduction request form
Note: Tax cannot be withheld from self-employment income, investment income, rental income, or capital gains.
Make Voluntary Payments Throughout the Year
Even if you’re not officially required to make instalments, you can make voluntary payments to your CRA account throughout the year. This can help you budget better and avoid a large tax bill at filing time.
Viewing Your Instalment Reminders Online
You don’t have to wait for your CRA reminder in the mail. You can access your instalment information online anytime by signing into your CRA My Account.
Here’s what you’ll find:
- Your instalment payment amounts
- Your payment due dates
- Your instalment payment history
- Your current balance
Setting up direct deposit is also a smart move. It ensures your refunds arrive faster and allows for easier tracking of payments.
Common Instalment Payment Mistakes to Avoid
Even experienced taxpayers can make mistakes with instalments. Here are some pitfalls to watch out for:
1. Ignoring Your CRA Reminder
Just because you received a reminder doesn’t mean you have to pay that exact amount. Review your situation and choose the calculation option that works best for you.
2. Underestimating Your Current-Year Income
If you use the current-year option and underestimate your income, you could face both interest and penalties. It’s better to slightly overestimate and get a refund than to underpay and owe more.
3. Missing Payment Deadlines
Late payments trigger interest immediately. Set reminders in your calendar well before each due date to ensure you never miss a payment.
4. Not Adjusting for Life Changes
Major life events — like starting a business, selling property, or retiring — can significantly impact your tax situation. Review your instalment obligations whenever your financial circumstances change.
5. Paying to the Wrong Account
Make sure your payments are applied to the correct tax year and account. Double-check your payment details to avoid misallocation.
How The TaxForce Can Help
Tax instalments can be confusing, especially if your income fluctuates throughout the year or you have multiple income sources. At The TaxForce, we specialize in helping Ontario residents navigate complex tax situations with confidence.
Our team can:
- Review your CRA instalment notice and confirm whether you’re required to pay
- Calculate the optimal instalment amount based on your unique financial situation
- Set up a payment plan that fits your cash flow
- Identify strategies to reduce or eliminate future instalment requirements
- Represent you if you’re facing instalment interest or penalties
We understand that every taxpayer’s situation is different. Whether you’re a small business owner, a retiree with multiple income streams, or a self-employed professional, we’ll work with you to create a tax strategy that minimizes your obligations and maximizes your peace of mind.
Key Takeaways
- $3,000 threshold: If your net tax owing exceeds $3,000 for 2026 (and in either 2025 or 2024), you’ll likely need to pay instalments
- Four deadlines: Mark your calendar for March 15, June 15, September 15, and December 15, 2026
- Three calculation options: Choose the no-calculation, prior-year, or current-year option based on your situation
- Interest and penalties: Late or insufficient payments can trigger compound daily interest and penalties if interest exceeds $1,000
- Strategies exist: You can reduce instalments by increasing withholdings at source or making voluntary payments
Don’t Let Instalment Payments Catch You Off Guard
Understanding your CRA instalment obligations is essential to staying compliant and avoiding costly penalties. The rules can be complex, and the calculations aren’t always straightforward, but you don’t have to figure it out alone.
Not sure if CRA instalment payments apply to you? Our team at The TaxForce can review your CRA notice and confirm your next steps before penalties hit.
Contact us today to schedule a consultation. Let’s make sure you’re paying the right amount at the right time, and not a penny more.
The TaxForce
Your trusted tax experts in Ontario
(226) 776-1219
www.thetaxforce.ca
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