Self-Employed in Toronto? Your 2025 Return Is Due June 15, 2026 — And This Year There's No Weekend Shift

If you or your spouse or common-law partner carried on a business as a sole proprietor in 2025, the Canada Revenue Agency's deadline to file your T1 return is June 15, 2026 — a Monday, which means there is no weekend shift to a later date this year, unlike 2025 when June 15 fell on a Sunday and the effective deadline moved to June 16. The bigger trap, as always, is the second half of the rule: filing can wait until June 15, but any balance owing for 2025 was still due April 30, 2026, the same date as every other individual filer. For Toronto-area proprietors, this is also a natural checkpoint to line up your HST filing rhythm alongside the personal return, since both run on separate but overlapping clocks through the same busy spring.

Source: Government of Canada — Due dates and payment dates: Personal income tax.

The two deadlines, precisely

Because June 15, 2026 lands on a Monday, the CRA's usual next-business-day rule for weekend and holiday deadlines does not apply this year — June 15 is the actual deadline, not an approximation. That is a small but real difference from 2025, when the effective date moved to June 16. A proprietor working from last year's date in a calendar reminder or spreadsheet template should update it, not assume the same shift applies again.

The payment side has not changed at all: a balance owing for the 2025 tax year started accruing CRA arrears interest on May 1, 2026, regardless of when the return itself gets filed. Filing on June 10 under the extended deadline does not pause interest that has been running since May 1 on an unpaid amount.

Who the June 15 deadline covers

The later filing date applies at the household level, to anyone who carried on a business in 2025, or whose spouse or common-law partner did:

• Unincorporated sole proprietors and freelancers reporting business income on their personal return.
• Partners in a general partnership reporting their share of partnership income personally.
• A spouse with no self-employment income of their own, married to or in a common-law relationship with someone who has some — the whole household return gets the later filing date.

It does not extend a corporation's T2 filing deadline, which runs on its own six-month clock tied to the corporation's fiscal year-end rather than the personal tax calendar. It also does not change HST/GST remittance schedules, which are set independently — a point worth spelling out below, since spring is when both obligations tend to land on a Toronto proprietor's desk at once.

Where HST filing fits into the same spring

A registered HST business's reporting period is assigned by the CRA based on annual taxable supplies:

Source: Government of Canada — Make changes to your GST/HST account: Assigned reporting periods.

For annual filers, the general rule is a filing and final payment deadline 3 months after the fiscal year-end — but there is a specific exception that matters directly here: a sole proprietor with a December 31 fiscal year-end who had business income for the year gets a June 15 filing deadline and an April 30 payment deadline for HST, lining up exactly with the personal T1 dates above. Miss any one of the three criteria — not an individual, not a December 31 year-end, no business income for the year — and the deadline reverts to 3 months after year-end for both filing and payment.

Source: Government of Canada — Reporting requirements and deadlines: File your GST/HST return.

That alignment is genuinely convenient for a qualifying Toronto proprietor — one set of dates to track instead of two — but it also means the same April 30 payment risk applies twice over: both the income tax balance and the HST net tax owing are due April 30, even though both returns can be filed as late as June 15. A proprietor who has not separated collected HST from operating cash through the year can find the April 30 payment obligation larger than expected on both fronts at once.

Why this hits an incorporated business differently

An incorporated Toronto owner draws salary or dividends and files a personal T1 like any employee — the corporation's fiscal year and the owner's personal return are two separate filings on two separate clocks, and neither the June 15 extension nor its HST-frequency counterpart changes anything about the corporation's own T2 or HST filings. A sole proprietor has no such separation: the business is the personal return, and the HST registration, if any, sits directly on the proprietor's own SIN-linked CRA account. That collapses three obligations — personal T1, business income reporting, and HST — into one spring stretch with no corporate buffer between them, which is exactly why the payment-versus-filing gap catches proprietors more often than incorporated owners.

What Toronto-area proprietors should do now

• Confirm June 15, 2026 in your own calendar and payroll/bookkeeping software, rather than carrying over last year's June 16 reminder — this year there is no weekend adjustment.
• Estimate the 2025 balance owing and pay it by April 30, 2026 if you have not already, even if the full return is not yet finalized; interest on any unpaid balance has been running since May 1.
• Check your assigned HST reporting period rather than assuming annual — if your taxable supplies crossed $1,500,000 in a recent year, the CRA may have already moved you to quarterly filing without much fanfare.
• Confirm you actually qualify for the June 15/April 30 HST exception — it applies only to sole proprietors with a December 31 year-end who had business income that year; anyone else on an annual filing frequency is on a 3-months-after-year-end schedule instead.
• Treat HST collected on sales as held-in-trust money, not operating cash, since the April 30 payment deadline applies to HST net tax owing just as much as to the income tax balance.
• If you are incorporated, don't assume June 15 applies to your corporate T2 — it runs on your corporation's own fiscal year-end; see our companion piece on the T2 six-month filing rule for how that clock works.
• If your proprietorship's income has grown enough that incorporation might reduce total tax, spring — with a full year of numbers in hand — is the natural time to run that comparison; see our Ontario incorporation guide.

The bigger picture

The self-employed filing extension exists because reconciling a full year of unincorporated business income and expenses genuinely takes longer than processing a T4 slip — it is not a payment holiday, and this year's clean June 15 date (no weekend shift) removes one of the usual sources of confusion, leaving the payment-versus-filing split as the detail most worth getting right. Layering the HST filing rhythm on top of the personal deadline, rather than treating them as unrelated, is what keeps a proprietor's spring from turning into three separate scrambles instead of one coordinated one.

If you're a Toronto-area sole proprietor reconciling your 2025 numbers ahead of June 15, checking your HST filing frequency, or weighing incorporation, RN Canada works with Ontario business owners remotely from our Edmonton and Vancouver offices through our tax return preparation and bookkeeping and payroll services.