Paralegal firm payroll: staff on T4, agents on T4A, and where WSIB fits

Employees on T4: the people actually on staff

The in-office team — a licensed paralegal associate, law clerks, a scheduler or receptionist — goes on standard T4 payroll: source deductions, CPP, EI, and a Record of Employment if someone leaves. Ontario employers with staff, paralegal offices included, fall within WSIB's mandatory coverage, so registration is not optional once the first employee is hired, even though the work is desk-based rather than physical.

Ontario's Employer Health Tax exemption shelters the first slice of annual payroll for eligible private employers — a threshold that has moved over the years, so we confirm the current figure at year-end rather than assuming last year's number still applies. Below that threshold, a small sole-practitioner office with one or two staff often owes no EHT at all, which is worth knowing before a firm reflexively budgets for it.

Payroll cadence matters too. Many paralegal offices run bi-weekly payroll timed to match retainer billing cycles rather than a fixed calendar date, and remittance deadlines follow the same CRA schedule as any other small employer — monthly for most new firms, moving to a different frequency only once average monthly withholdings justify it.

Agent paralegals: a contractor question the courts themselves create

Covering a colleague's Small Claims or tribunal date for a flat per-appearance fee is common practice among licensed paralegals, and it is usually genuine contractor work: the agent is separately licensed, carries their own professional liability insurance, sets their own fee, and typically appears for several firms rather than one. That combination supports contractor status under the CRA's usual control-and-integration test. It also reflects how the tribunal system itself works: a Small Claims or LTB date can move at short notice, and a network of agent paralegals lets a firm cover a conflicting date without cancelling either matter.

The risk grows when a firm treats one agent as a regular — same days every week, firm-provided files and instructions, no other clients — because that pattern starts to look like an employment relationship in substance, whatever the invoice says. We put a written agreement behind every agent arrangement and issue a T4A for fees paid to a Canadian-resident agent once the year's total crosses the reporting threshold. We also confirm each agent's own LSO status and insurance are current before the first assignment, since an agent appearing without proper coverage becomes the retaining firm's problem the moment something goes wrong.

Rate cards for agent work are also worth setting deliberately rather than negotiating fresh every time. A firm that regularly relies on the same two or three agents benefits from a standing agreement covering typical matter types, so a busy week doesn't turn into a round of ad hoc fee negotiations on top of everything else.

Paralegal students on field placement

Ontario paralegal college programs generally require a supervised field placement before graduation, and most placements run unpaid through the college's own arrangement with the host firm — in which case there is no payroll obligation, only supervision and insurance considerations. If a firm chooses to pay a placement student anything beyond reimbursed expenses, that payment goes on T4 payroll like any other employee, regardless of the student's placement status.

A placement student is not the same as a newly licensed paralegal hired as a junior associate, and firms sometimes blur the two when a placement runs long or a student stays on informally after the term ends. Once someone is doing billable client work rather than supervised learning, the relationship has moved from placement to employment, and payroll should follow that shift the same week it happens rather than at the next slow month.

The PPC layer: salary, dividends, and draws

Where the practice runs through a Paralegal Professional Corporation, the principal's own pay is a separate decision from staff payroll — salary versus dividends, timed against RRSP room and personal cash needs — and it never gets processed through the same remittance account as employee source deductions. We keep the two entirely separate on the books so a CRA payroll review of staff wages never gets tangled up in the principal's own compensation.

For our thoughts on how the PPC itself changes the tax picture, and where its share-ownership rules cut off common income-splitting strategies, see our paralegal incorporation page; for how everyday payroll runs across every client, see our payroll services page.