CRA quarterly instalment September 15 2026 delivery driver checklist — who must pay, the three calculation options, and how independent parcel drivers avoid instalment interest.
The Date and Who It Applies To
The third instalment of 2026 is due Tuesday, September 15, 2026. The four dates for individuals are March 15, June 15, September 15 and December 15 (CRA — Required tax instalments for individuals). September 15 falls on a business day this year, so there is no weekend grace shift.
You are required to pay instalments if your net tax owing is more than $3,000 (more than $1,800 if you are a Quebec resident, because of the Quebec abatement) in the current year and in either of the two previous years. For parcel drivers this catches a lot of people, because nobody withholds tax from an Amazon Flex, Curri, Roadie, Frayt or FedEx ISP payment. You get the gross; the tax bill arrives later.
Check Your Mail Before You Calculate Anything
The CRA mails instalment reminders in February and August. The August reminder covers the September and December payments — so the letter telling you what to pay on September 15 is arriving right now. Do not throw it out. It contains the no-calculation amount, and that number has a property the other methods don't.
The Three Ways to Calculate — and Why One Is Safer
- No-calculation option. Pay exactly what the CRA printed on the reminder. The CRA calculates it from your prior-year returns. If you pay the no-calculation amounts in full and on time, instalment interest does not apply — even if you end up owing more at filing. That is the safety property, and it is why most drivers should default to this.
- Prior-year option. Take your 2025 net tax owing and divide by four. Useful when 2026 is tracking similar to 2025 and the CRA reminder looks stale.
- Current-year option. Estimate what you will actually owe for 2026 and pay a quarter of it. This is the one to use when your income dropped — but it carries the risk: if you underestimate, the CRA charges instalment interest.
You may use whichever option produces the lowest correct payment (CRA — Options to calculate instalment payments). The trade-off is simple: no-calculation is safe, current-year is cheaper when your year is genuinely down, and you carry the estimation risk yourself.
Driver-Specific Traps
- A down year does not exempt you automatically. The test looks at the current year and either of the two previous years. A strong 2024 or 2025 can pull you into instalments even if 2026 is softer.
- Instalments are income tax only. Your GST/HST remittances are a separate schedule with separate deadlines. Paying one does not cover the other.
- CPP contributions ride along. As a self-employed driver you pay both halves of CPP on your net business income, and that is part of the net tax owing your instalments are sized against. Drivers who budget for income tax only come up short.
- Your deductions change the number. Mileage, fuel, insurance, phone, and vehicle depreciation all reduce net income. If you have been tracking properly this year, your real 2026 liability may be well below the CRA's prior-year-based reminder — which is exactly when the current-year option is worth the arithmetic.
The Deduction That Moves the Needle Most
For a parcel driver, business-use vehicle expenses are usually the single largest deduction, and they hinge on a defensible kilometre log. The CRA expects a record showing date, destination and distance for business travel. Reconstructing that in April from memory is both painful and weak under review. Reconstructing it from route history you already have is neither.
Your September 15 Checklist
- Find the August CRA instalment reminder and read the no-calculation amount.
- Decide your method: no-calculation if your year is normal, current-year only if your income is genuinely down and you can estimate defensibly.
- Total your year-to-date gross across every platform and your year-to-date deductible expenses before choosing.
- Pay by September 15 through CRA My Account, online banking or a Canadian financial institution.
- Confirm your GST/HST filing dates separately — they do not move with instalments.
- Export your route and mileage history so the kilometre side of the return is already built.
How FlexMesh Helps
FlexMesh route history gives you dated, per-route distance records across every carrier you delivered for — the raw material for both a CRA-compliant mileage log and an honest current-year estimate. If you are deciding between paying the CRA's number and calculating your own, having real distance and route data is what makes that decision safe rather than a guess.
Sources & Data Verification
- CRA — Required tax instalments for individuals
- CRA — Options to calculate instalment payments
- CRA — Important dates for individuals
- Revenu Québec — Instalment payments
This article is general information for independent parcel drivers, not tax advice. Confirm your own situation with a Canadian accountant.
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