Ontario Payroll Calculation Guide for Tradespeople: CRA, ESA & Licensing Compliance
Ontario tradespeople — from Red Seal-certified electricians to licensed handymen — must calculate payroll in strict accordance with federal and provincial laws. Missteps risk penalties from the Canada Revenue Agency (CRA), Employment Standards Act (ESA) violations, or disciplinary action by the Ontario College of Trades (now Skilled Trades Ontario). This guide walks you through legally mandated calculations using current 2024 rates and requirements.
1. Statutory Deductions: CRA Requirements
Under the Income Tax Act and CRA’s RC4120 guide, Ontario tradespeople must deduct CPP (5.95% on earnings $3,500–$68,500), EI (1.66% on max $63,200), and federal/provincial income tax using TD1ON forms. Self-employed sole proprietors don’t deduct these but must remit quarterly instalments. Contractors hiring employees must register a CRA payroll account, file T4s annually, and remit deductions by the 15th of the following month. Failure triggers interest (CRA prescribed rate: 5% as of 2024) and penalties under section 153 of the Income Tax Act.
2. Employment Standards Act (ESA) Obligations
Ontario’s ESA mandates minimum wage ($16.55/hour as of Oct 2023), overtime pay (1.5× after 44 hours/week), public holiday entitlements, and vacation pay (4% minimum, rising to 6% after 5 years). Trades employers must track hours precisely — especially for onsite work governed by the Ontario Building Code (OBC Div. B, Section 1.3.3.2 on worker safety records). Misclassifying workers as ‘independent contractors’ to avoid ESA duties violates section 1(1) of the ESA and invites Ministry of Labour inspections and fines up to $15,000 per offence.
3. Trade Licensing & Skilled Trades Ontario Rules
Licensed tradespeople (e.g., electricians under ESA s. 23, plumbers under O. Reg. 273/12) must ensure payroll practices align with Skilled Trades Ontario (STO) registration requirements. STO mandates that employers verify journeyperson status before assigning regulated work — impacting payroll classification. For example, paying an unlicensed person to perform electrical work violates O. Reg. 273/12 and voids WSIB coverage. Payroll records must substantiate qualifications, as STO may audit documentation under the Ontario College of Trades Transition Act, 2021.
4. WSIB, Health Tax & Recordkeeping
Ontario trades employers must register with WSIB within 10 days of hiring — premiums vary by trade (e.g., construction: ~1.33% of payroll; plumbing: ~1.04%). Employers also remit Ontario Health Premium (OHP) on annual income over $20,000 (up to $900). Per CRA Guide RC4120 and ESA s. 24, payroll records must be retained for 6 years and include wages, deductions, hours, and employee status. Digital tools must comply with PIPEDA for storing personal data — critical when managing subcontractor ROEs or T4As.
How HandymenAI helps
HandymenAI automates Ontario-specific payroll calculations — validating CRA remittances, ESA-compliant overtime, WSIB class codes, and Skilled Trades Ontario licensing checks — all updated in real time with CRA bulletins and Ontario Regulation changes.
Get Expert Help from HandymenAIFrequently Asked Questions
Do I need to charge HST on payroll I pay myself as a sole proprietor?
No — HST applies only to taxable supplies (services/goods sold), not owner compensation. However, you must still remit CPP contributions on self-employment income via Form RC181 and file GST/HST returns if registered.
Can I pay my apprentice below minimum wage in Ontario?
Only under a formal, Ministry-approved apprenticeship agreement registered with Skilled Trades Ontario. Even then, wages must meet the ESA’s ‘apprentice wage schedule’ — never less than 75% of journeyperson rate for Level 1, per O. Reg. 285/01.
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