What changes for payroll when you hire someone in another province?

The province of employment decides the tables, and it is not always where the person lives

Payroll follows a defined term, province of employment, and the term is about your establishment, not the employee's address. If the employee physically reports for work at an establishment of yours, the province of employment is the province where that establishment is. If they are not required to report to any establishment, it is the province of the establishment from which their salary is paid. Under CRA's policy for full-time remote work arrangements, an employee who works from home is treated as reporting to the establishment they are attached to, which is judged by asking where they would have reported if the remote arrangement did not exist, backed by facts such as who supervises them, where their team sits and which office their duties relate to.

That produces two common patterns, and they point in opposite directions. Hire someone who lives in Calgary to work at your new Calgary office, and the province of employment is Alberta from the first pay. Hire someone who lives in Calgary to work from home for your Mississauga team, with an Ontario manager and no Alberta establishment, and CRA's attachment policy will usually put them in Ontario for withholding purposes, even though they never set foot here. The second pattern surprises owners in both directions: some assume Alberta because of the address, others assume Ontario without ever documenting why.

Getting this right on day one matters because everything else on this page hangs on it. The tax table, the TD1 form, the box on the T4 and the employer levy registrations all key off the province of employment, and a wrong call is not a rounding error; it is a year of deductions remitted against the wrong province's tables, corrected on the employee's return and queried on yours.

What changes in the deductions, and what does not

For any province other than Quebec, the federal pieces of payroll do not move at all. CPP contributions, EI premiums, federal income tax and the remittance to CRA all work exactly as they do for your Ontario staff, on the same schedule and through the same payroll account. What changes is the provincial income tax: each province sets its own brackets, rates and credits, CRA publishes a deduction table for each, and the employee completes that province's TD1 form alongside the federal one so their personal credits are right.

The result is a different net pay for the same gross, and occasionally a conversation about it. An employee moving from Ontario tables to another province's will see their take-home change even though their salary did not, and it is worth telling them before the first stub rather than after. It is also worth telling them the year-end wrinkle: their personal return is filed for the province they live in on December 31, so an employee whose province of employment differs from their province of residence will settle up the difference, one way or the other, when they file.

At year-end the T4 reports the province of employment, and CRA matches the deductions you remitted against that province's tables. Slips that carry the wrong province are the most common way a payroll compliance review begins, which is why the province-of-employment decision belongs in the personnel file with its reasons attached, not just in a dropdown in the software.

Employer levies and registrations follow the payroll into the province

The employer-side costs are where a new province adds real obligations rather than a different table. Ontario's Employer Health Tax is the model most owners know: a tax on remuneration paid to employees who report to work at your Ontario establishment, with an exemption for eligible private employers that removes most small payrolls and a rate that applies above it. Several other provinces run their own version of the same idea, British Columbia, Manitoba, Newfoundland and Labrador and Quebec among them, each with its own name, its own threshold, its own rate structure and its own registration and annual return. A payroll that sits comfortably under Ontario's exemption can still owe a levy elsewhere, because each province measures only the payroll attributable to it and sets its own line.

Workers' compensation is separate again, and it is not driven by province of employment at all. Each province runs its own board, and coverage is generally required where the work is physically performed, so an employee working in another province usually means registering with that province's board, reporting their earnings to it and paying its premiums at the classification rate for your industry. Ontario's WSIB does not cover them, and the other board's rules about which industries must register, what counts as assessable earnings and how remote and travelling workers are treated are its own. Some boards also have their own rules for workers who are in the province only briefly, which matters for field-service and construction employers more than for office roles.

The registrations are inexpensive on time and expensive when late, because levies and premiums carry interest and penalties from the date they were due, not from the date you found out. The sequence we use is to open every account before the first pay run: the provincial health levy account if the payroll there will pass its threshold, the workers' compensation account in every province where someone will work, and a note in the compliance calendar for each one's annual return.

Employment standards travel with the employee, and they are a lawyer's question

Employment law is provincial, and the rules that apply to a worker are generally those of the province where they work, regardless of where the employer is based. Minimum wage, the overtime threshold, vacation entitlement and how vacation pay accrues, the list of statutory holidays and how holiday pay is calculated, leave entitlements, and the notice and severance owed on termination all differ from Ontario's rules, sometimes substantially. Your Ontario employment contract template and your Ontario handbook were written for Ontario law, and the clauses that limit termination entitlements are the ones most likely not to survive contact with another province's statute.

A short list of employers fall under federal jurisdiction instead, interprovincial trucking, banking, telecommunications and a few other industries, and their employees are governed by the Canada Labour Code wherever they work. For everyone else, hiring out of province means having the contract, the policies and the termination clause reviewed by an employment lawyer familiar with that province before the offer goes out, not after a dispute. We raise it because payroll is where the differences surface first, in vacation accrual rates and holiday pay calculations that the software must be told about, but the substantive questions belong with counsel.

Quebec is a second payroll administration, not just a different table

A Quebec employee changes the structure of your payroll rather than one of its inputs, because Quebec administers its own share of the system. Instead of CPP, Quebec employees contribute to the Quebec Pension Plan, and you match those contributions and remit them to Revenu Québec. Quebec runs its own parental insurance plan, QPIP, so both employee and employer pay QPIP premiums to Revenu Québec and the federal EI premium is charged at a reduced Quebec rate. Quebec income tax is withheld under Revenu Québec's tables, using Quebec's own credits form, and remitted to Revenu Québec, while federal income tax and EI continue to go to CRA.

The employer contributions are Quebec's own as well. The health services fund contribution is an employer levy on Quebec payroll whose rate depends on your total payroll and sector, and it starts at the first dollar rather than above an exemption. Workers' compensation and labour standards contributions both run through the CNESST, and employers whose total payroll exceeds a threshold are required to spend a set share of it on training or contribute the shortfall to a provincial fund. At year-end you file RL-1 slips and a summary with Revenu Québec for every Quebec employee, alongside the T4s you still file with CRA.

The practical consequence is a second payroll account with a second administrator, a second remittance calendar and a second set of year-end slips, for one employee. Where Quebec is more than one hire, it is usually a broader expansion, and the corporate tax, sales tax and registration pieces that come with it are set out in what expanding into Quebec adds to your corporate filings.

Setting it up, and what changes the answer

The setup is a checklist, and it belongs before the offer letter rather than after the first pay. Decide and document the province of employment, with the attachment analysis written down for remote hires. Configure the employee in your payroll software with that province, its TD1, and the vacation and holiday rules that apply to them, and check that the software carries the provincial health levy and multiple workers' compensation accounts, because not every small-business payroll product does. Open the provincial accounts that the hire triggers, add their returns to the compliance calendar, and if the province is Quebec, register with Revenu Québec for source deductions before the first pay date, since a Quebec pay run cannot be remitted anywhere else.

Then keep the remittance discipline that already protects your Ontario payroll, because a growing multi-province payroll is exactly the kind that drifts toward faster remittance deadlines and larger penalties; the monthly routine is in how to prevent payroll remittance surprises. And keep the payroll question separate from the corporate tax question in your head. A remote hire changes withholding on their first pay; whether they also give your corporation a permanent establishment in their province is a different test with a different answer, worked through in whether a remote employee creates a permanent establishment.

What changes the answer for your hire comes down to a handful of facts:

• Where they report, or which establishment they are attached to, since that sets the province of employment and the tables, not their home address
• Whether the province is Quebec, which turns a table change into a second payroll administration
• How much payroll you will have in that province, measured against its employer health levy threshold
• Where the work is physically performed, because workers' compensation registration follows the work, not the payroll province
• Whether your business is provincially or federally regulated, which decides whose employment standards apply
• Whether your payroll software and provider can actually run a second province, since the gap between "supports" and "set up" is where errors live

We run multi-province payroll inside End-to-End Accounting, where it sits with the books, the levies and the year-end slips as one calendar rather than a separate service; that is the arrangement described in the Ongoing Financial Partnership. If you are about to make the hire, a free 15-minute discovery call is enough to tell you which accounts to open and whether the province of employment is the obvious one.