What Are CRA Installment Payments?
CRA installment payments are quarterly tax payments that certain Canadians are required to make throughout the year, rather than paying all their income tax in a lump sum on April 30. If the CRA determines that you will likely owe more than $3,000 in net federal and provincial tax at the end of the year, they expect you to pay quarterly installments.
Installment payments are separate from the payment you make when filing your tax return. They are advance payments of tax that you expect to owe — similar to how employees have income tax withheld from each paycheque by their employer. Self-employed Canadians, investors with significant investment income, retirees receiving pension income, and others without payroll withholding must manage their own installments.
At Pathak Professional Corporation, our Mississauga CPA team regularly assists self-employed individuals and investors in calculating accurate installment amounts to avoid CRA interest and penalties.
Who Must Pay CRA Installments?
You are required to make quarterly tax installments if your net tax owing exceeded $3,000 (in any province except Quebec, where the threshold is $1,800 for provincial tax) in either of the two preceding tax years and you expect to owe more than $3,000 again in the current year.
Common Groups Who Pay Installments
| Taxpayer Type | Why Installments Are Required |
|---|---|
| Self-employed individuals | No employer to withhold income tax — must pay it themselves quarterly |
| Rental property owners | Net rental income not subject to withholding; significant income creates large April balances |
| Investors with taxable investment income | Interest, dividends, and capital gains trigger tax not withheld at source |
| Retirees with pension and RRIF income | OAS and CPP withholding often insufficient; supplemental pension income adds to tax owing |
| Employees with significant side income | T4 withholding doesn’t cover additional self-employment, rental, or investment income |
| Partners in a partnership | Partnership income flows through without withholding |
| Canadians receiving foreign pension income | Foreign pension often has insufficient or no Canadian withholding |
Who Does NOT Need to Pay Installments?
You do not need to make installment payments if:
- Your net tax owing was $3,000 or less in both of the two preceding years
- Your employer withholds enough tax to cover your expected liability (e.g., you requested additional withholding via a TD1)
- You are in your first year of generating significant non-employment income (installments start the following year)
CRA Installment Payment Deadlines 2025
Installment payments are due four times per year, on the 15th day of:
| Payment | Due Date 2025 | Covers |
|---|---|---|
| 1st installment | March 15, 2025 | Q1 estimated tax |
| 2nd installment | June 15, 2025 | Q2 estimated tax |
| 3rd installment | September 15, 2025 | Q3 estimated tax |
| 4th installment | December 15, 2025 | Q4 estimated tax |
When the 15th falls on a weekend or holiday, the installment is due the next business day. The balance owing (after all four installments) is due April 30 of the following year — or June 15 if you or your spouse is self-employed (though interest still accrues from May 1).
Three Methods to Calculate Your Installments
The CRA offers three methods to calculate quarterly installments. You can choose the one that results in the lowest payment — and if you choose the No-Calculation Method, the CRA does the math for you.
Method 1: No-Calculation Method (CRA Installment Reminder)
The CRA sends installment reminders in February and August each year. If you pay the amounts printed on these reminders exactly, you will not be charged installment interest — even if the amounts are too low and you still owe a balance on April 30.
The reminder amounts are calculated as follows:
- March and June installments = ¼ of your net tax owing from 2 years ago
- September and December installments = ½ of (current year estimated tax – amounts already paid)
Best for: Taxpayers whose income is stable or decreasing — the CRA may calculate installments based on a prior year that was higher, so you end up overpaying quarterly and getting a refund.
Method 2: Prior-Year Method
Pay ¼ of your prior year’s net tax owing each quarter.
Formula: Each quarterly installment = Prior year net tax owing ÷ 4
Example: Your 2024 net tax owing was $16,000. Each 2025 quarterly installment = $16,000 ÷ 4 = $4,000 per quarter.
Best for: Taxpayers with stable income year over year. Safe if your current year income is similar to last year.
Method 3: Current-Year Method
Estimate your current year’s net tax owing and pay ¼ of that amount each quarter.
Formula: Each quarterly installment = (Estimated current year tax – amounts withheld at source) ÷ 4
Best for: Taxpayers whose income has dropped significantly compared to prior years. Allows lower installments if earnings are down, but requires accurate income projection. If your estimate is too low, you will owe installment interest on the underpayment.
Which Method Should You Use?
| Situation | Best Method | Why |
|---|---|---|
| Income same as last year | No-Calculation or Prior-Year | Easy and safe — guaranteed no interest |
| Income lower than last year | Current-Year | Avoids overpaying; lower cash outflow |
| Income higher than last year | Prior-Year or No-Calculation | Automatic interest protection; top up at filing |
| First year of self-employment | Current-Year | No prior-year reference; estimate based on projected income |
| Complex income (investments + rental + self-employment) | CPA-assisted Current-Year | Accurate projection needed; consult Pathak Professional Corporation |
CRA Installment Interest and Penalties
If you underpay your installments, the CRA charges installment interest at the prescribed rate (currently 9% annually, compounded daily as of 2024). This applies even if you pay your full balance owing by April 30.
How CRA Installment Interest Works
The CRA calculates installment interest in a specific way:
- They determine what your installments should have been based on the lower of: the No-Calculation amounts, the Prior-Year amounts, or your actual tax owing
- Interest accrues on the shortfall from each missed deadline to the earlier of: when you actually paid, or April 30
- If you paid more than required in some quarters, excess amounts reduce interest in later quarters
Installment Interest Relief Through Overpayment
Interest charges can be offset by installment interest credits — the CRA gives you a notional credit for overpaid installments. If you overpaid in Q1 and Q2, that credit can offset interest charges from Q3 underpayment.
The Installment Penalty
In addition to interest, the CRA can charge a penalty if your installment interest exceeds $1,000 in a year. The penalty is 50% of the excess interest above $1,000. This penalty is rare for most individuals but can apply to those with large underpayments over multiple quarters.
How to Pay CRA Installments
You can make installment payments through several channels:
| Payment Method | How | Processing Time |
|---|---|---|
| CRA My Account online | Log in → Payments → Arrange pre-authorized debit or pay by credit card (third-party fee applies) | 1–3 business days |
| Online banking (bill payment) | Add CRA as payee; select “CRA (revenue — personal tax installments T1)” and enter your SIN as account number | 1–5 business days |
| CRA My Payment (Interac) | Debit payment at canada.ca/payments | Same day |
| In-person at your bank | Use the CRA remittance stub from the installment reminder | Same day |
| Cheque by mail | Payable to “Receiver General for Canada” with your SIN and “2025 T1 Installment” in the memo; allow 5–10 days | Received date is payment date |
Critical rule: When paying through online banking, select “CRA (revenue — personal tax installments T1)” — not “CRA (revenue — tax return remittance)” or “CRA (revenue — balance owing).” Using the wrong payee type can misapply your payment and trigger interest.
CRA Installments vs. Tax Return Balance Owing — What’s the Difference?
Many Canadians confuse installment payments with the balance owing they pay when filing their return:
- Installment payments: Paid quarterly throughout the year (March, June, September, December). These are advance payments of your expected tax liability.
- Balance owing at filing: The remaining amount you owe after all installments have been credited. Due April 30 (or June 15 if self-employed, but interest accrues from May 1).
- If installments exceed tax owing: You receive a refund of the overpayment after filing.
CRA Installments for Self-Employed Individuals in Mississauga and the GTA
For self-employed professionals, consultants, and incorporated business owners in Mississauga, managing installment payments is one of the most important cash flow disciplines.
Practical approach used by our Pathak Professional Corporation clients:
- Set aside 25–30% of each client payment into a dedicated “tax account”
- Make CRA installment payments from this account each quarter — on or before the 15th
- File your T1 return by April 30 and clear any remaining balance from the tax account
- After filing, we recalibrate the upcoming year’s installment amounts based on actual tax owing
Requesting Waiver or Cancellation of Installment Interest
If you missed installment payments due to extraordinary circumstances (illness, natural disaster, death in the family), you can request a waiver or cancellation of installment interest under the CRA’s taxpayer relief provisions (formerly “fairness provisions”). Submit a request with:
- Form RC4288 (Request for Taxpayer Relief)
- Supporting documentation of the extraordinary circumstances
- Explanation of when and why installments were missed
Pathak Professional Corporation assists clients in preparing taxpayer relief applications when interest or penalties have been assessed under extenuating circumstances.
Frequently Asked Questions: CRA Installment Payments Canada
Q: What happens if I don’t pay CRA installments?
A: The CRA will assess installment interest at the prescribed rate (currently 9% annually, compounded daily). You will still owe all your tax on April 30 — installment non-payment doesn’t reduce your tax owing, it just adds interest charges. If the interest exceeds $1,000, a penalty may also apply.
Q: Can I skip installments and just pay everything on April 30?
A: Yes — but if you were required to make installments and didn’t, you will owe installment interest on the underpaid amounts from each deadline date. The only way to avoid interest on a large lump-sum April payment is if your prior-year tax owing was under $3,000 (meaning installments weren’t required).
Q: Does the CRA notify me that I need to make installments?
A: Yes — if the CRA calculates that you’re required to make installments, they send you an Instalment Reminder letter in February (for March and June payments) and again in August (for September and December payments). However, receiving no reminder does not exempt you from installments if you otherwise meet the $3,000 threshold.
Q: How do installments work in my first year of self-employment?
A: If your first year of self-employment is 2025, you generally do not need to make installments during 2025 — because your prior two years had negligible tax owing. However, starting in 2026, if your 2025 net tax owing exceeded $3,000, you’ll receive installment reminders and will be expected to pay quarterly. This is why it’s important to start saving for your first large tax bill the moment you start a business.
Q: My income dropped significantly this year — can I reduce my installments?
A: Yes. Using the Current-Year Method, you can base installments on your projected current-year income. If your income dropped 40%, you can pay 40% less in installments. However, if you underestimate and still owe a large balance at April 30, CRA will assess interest on the underpaid installments. Work with a CPA to make an accurate estimate.
Q: What if I overpay my installments?
A: You will receive a refund after filing your return. Overpaid installments are credited against your tax owing and any excess is refunded. There is no penalty or fee for overpaying installments — the only downside is the temporary reduction in your available cash flow.
Contact Pathak Professional Corporation — Mississauga Tax Planning Specialists
Installment payment planning is one of the most practical tax services our Mississauga CPA team provides. We help self-employed individuals, landlords, and investors calculate the optimal installment amount, set up a payment schedule, and minimize CRA interest through proactive planning.
📍 48 Village Centre Place, Mississauga ON L4Z 1V9
📞 437-872-7399
📧 info@pathakcpa.ca
