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Staffing agency tax services: HST on every placement, payroll CRA actually watches
A staffing agency charges HST on the whole invoice — the wage component included, not just the margin — and its real tax exposure is not the T2 but the source deductions held in trust for hundreds of workers. We run tax for agencies on that footing: HST positions matched to each revenue stream, remittances that never slip, and a corporate return built for thin margins on big gross revenue.
By the AnalytIQ Accounting team · Last reviewed: August 12, 2026
HST is charged on the bill, not the margin
When you supply temp workers, you are selling a service of providing personnel, and HST applies to the total consideration — wages, burden, and margin together. Agencies coming from a payroll mindset sometimes tax only the markup; that error compounds fast at staffing volumes, because a reassessment claws back 13% of everything that went untaxed. Your business clients recover the HST as input tax credits, so charging correctly costs them nothing — but it does mean the agency collects and floats large HST balances, which is a cash-management discipline of its own.
| Revenue stream | HST treatment |
|---|---|
| Temp staffing bill (wages plus burden plus margin) | 13% on the full invoice — the wage component is not a pass-through |
| Permanent placement fee | 13% on the fee, when it becomes payable under the terms |
| Payrolling a client-sourced worker | Still a taxable supply of the service — 13% on what you bill |
| Recruiting for a non-resident client, candidate placed outside Canada | Often zero-rated — with non-residence documented in the file |
The provincial rate follows the place-of-supply rules, so an Ontario agency staffing a Calgary client's site is usually charging 5% GST on that stream — worth setting up correctly in the billing system rather than patching at filing time.
Source deductions are the real audit surface
Every dollar of CPP, EI, and income tax withheld from worker pay is trust money, and CRA treats it that way: trust examinations concentrate on payroll-heavy sectors, temp labour has drawn public CRA enforcement attention in the GTA, and directors are personally liable for unremitted amounts under section 227.1. Agencies also graduate quickly into accelerated remitting — once average monthly withholdings reach $100,000, remittances fall due within days of each payroll, up to four times a month. Our position is simple: remittances are calendared, funded from the payroll account before margin is counted, and reconciled to the T4 summary monthly, because catching a discrepancy in February of slip season is eleven months too late.
Classification is the other pressure point, and staffing sits under a special rule: the placement-agency provisions in the CPP and EI regulations can make the agency responsible for deductions even where the client directs the day-to-day work, and even where the worker asked to be treated as a contractor. An agency-wide invoice-instead-of-payroll arrangement is not a preference — it is a liability accruing at headcount scale, and we would rather price it correctly than defend it later.
Two Ontario layers stack on top. Employer Health Tax runs to 1.95% of payroll; the $1,000,000 exemption helps small agencies but disappears entirely once an associated group's Ontario payroll passes $5,000,000 — a threshold a growing temp agency crosses almost without noticing. WSIB premiums follow the work your people actually perform at client sites, not the office your recruiters sit in, so classification needs reviewing as the client mix shifts toward industrial or construction placements.
The T2: big revenue, thin margin, shared limits
A staffing T2 shows gross revenue that dwarfs its bottom line, which changes the practical work. Instalments set from a strong prior year can strangle a soft one, so we recalculate against current-year actuals each quarter. Agencies that split into multiple corporations — temp and perm divisions, or one company per major client — are usually associated and share a single $500,000 small business limit, so the structure should earn its complexity. And because working capital is the binding constraint in staffing, the salary-dividend decision for owners is planned against the payroll float, not just the marginal rate table.
An agency's compliance calendar, run properly
The filings land in a tight sequence: T4s and the summary by the end of February, the EHT annual return in March, WSIB reconciliation, HST monthly or quarterly by election and volume, and the T2 six months after year-end with tax due earlier. We run the whole calendar as one engagement so nothing depends on someone remembering. When clients start asking you to place candidates across the border — TN placements, US client billing, workers on either side of the line — the classification and withholding questions change character; that side lives in our cross-border tax guide for staffing agencies, and the full engagement model is on our tax services page.
Common questions.
Do we really charge HST on the wage portion of a temp bill?
Yes. You are supplying a service of providing personnel, so HST applies to the entire invoice — wages, burden, and margin. Your business clients recover it as input tax credits, so correct invoicing costs them nothing and protects you from a reassessment on your full billing volume.
What happens if the agency falls behind on source deductions?
CRA treats withheld amounts as trust funds, and directors can be personally liable for what goes unremitted. Payroll-heavy sectors draw trust exams, so we fund remittances from the payroll account before margin is counted and reconcile to the T4 summary monthly.
Does the Employer Health Tax exemption apply to our agency?
Only while your associated group's Ontario payroll stays at or under $5,000,000 — above that the $1,000,000 exemption is gone and EHT runs to 1.95% of the full payroll. Growing temp agencies cross that line quickly, so we model it before it arrives.
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