Payroll Services Mississauga | Insight Accounting CPA

H1: Payroll Services Mississauga | CPA-Managed Payroll Solutions

Reliable, Accurate Payroll Processing for Canadian Businesses in Mississauga, the GTA, and Across Ontario

Running a business in Mississauga, Toronto, or anywhere in Ontario means juggling countless responsibilities—and payroll shouldn’t be one that keeps you up at night. At Insight Accounting CPA Professional Corporation, we provide comprehensive, CPA-managed payroll services that ensure your employees are paid accurately and on time, while keeping your business fully compliant with CRA and provincial regulations.

Led by Bader A. Chowdry, CPA, CA, LPA, our firm combines decades of accounting expertise with innovative Accounting Intelligence technology to deliver payroll solutions that are accurate, efficient, and tailored to your business needs. Whether you’re a startup in Mississauga or an established company with operations across Ontario and Canada, we have the expertise to handle your payroll with precision.


Comprehensive Payroll Services for Mississauga & GTA Businesses

Full-Cycle Payroll Processing

Payroll is more than just cutting cheques—it’s a complex process that demands accuracy and timeliness. Our full-cycle payroll services cover every aspect of payroll administration, regardless of your payment schedule:

Flexible Pay Schedules Supported:

  • Weekly payroll – Ideal for construction, hospitality, and trades businesses
  • Bi-weekly payroll – The most common schedule for Ontario employers
  • Semi-monthly payroll – Perfect for salaried employees (24 pay periods/year)
  • Monthly payroll – Suitable for executive compensation and certain professional services

Our team manages the entire payroll workflow from start to finish: collecting time sheets, calculating gross and net pay, processing direct deposits or cheques, and delivering detailed pay stubs to your employees. We handle all payroll calculations including regular wages, overtime, vacation pay, stat holiday pay, and any special adjustments—ensuring every pay run is accurate and compliant with Ontario’s Employment Standards Act.

T4 and T4A Preparation & Filing

Year-end payroll reporting is critical—and errors can be costly. We prepare and file all required tax slips accurately and on time:

T4 Slips (Statement of Remuneration Paid):

  • Preparation of T4 slips for all employees
  • Box-by-box accuracy verification for income, CPP, EI, and deductions
  • Electronic filing with CRA through our secure systems
  • Distribution to employees (electronic or paper)

T4A Slips (Statement of Pension, Retirement, Annuity, and Other Income):

  • T4A preparation for contractors, consultants, and pension recipients
  • Special attention to box 048 (fees for services) for independent contractors
  • Compliance with CRA reporting requirements for non-employee compensation

We ensure your T4 and T4A filings meet all CRA deadlines, avoiding late-filing penalties that can reach thousands of dollars. Our Accounting Intelligence system cross-references all totals against your payroll records to catch discrepancies before submission.

Record of Employment (ROE) Issuance

When employees experience an interruption of earnings—whether due to termination, layoff, or leave—you’re required to issue a Record of Employment (ROE) for Service Canada. Mistakes on ROEs can delay your former employees’ EI benefits and create compliance issues for your business.

Our ROE services include:

  • Timely issuance within 5 calendar days of the interruption of earnings
  • Accurate Block 15 (reason for issuing ROE) codes
  • Precise calculation of insurable hours and earnings
  • Electronic filing through ROE Web
  • Amendments to previously issued ROEs when needed

We understand the complexity of Ontario’s termination notice and pay-in-lieu requirements and ensure your ROEs reflect accurate final pay calculations.

CRA Payroll Remittances: CPP, EI & Income Tax

Timely and accurate remittance of source deductions is one of your most important payroll obligations. We manage all CRA payroll remittances to keep your business in good standing:

Canada Pension Plan (CPP) Contributions:

  • Accurate calculation of employee and employer CPP contributions
  • Monitoring of annual basic exemption amounts and maximum pensionable earnings
  • Special handling for employees reaching the maximum contribution threshold mid-year

Employment Insurance (EI) Premiums:

  • Precise calculation of employee EI premiums (1.66% for 2024, up to maximum insurable earnings)
  • Employer portion calculation (1.4x employee premiums)
  • Quebec EI rates for businesses with employees in Quebec

Income Tax Deductions:

  • Federal and provincial tax calculations based on TD1 forms
  • TD1X processing for commissioned employees
  • Lump-sum withholding tax for special payments

We determine your remittance frequency (regular, quarterly, or accelerated) based on your average monthly withholding amount and ensure all payments reach CRA by the due date. Missing remittance deadlines can result in penalties ranging from 3% to 20%, plus interest—our meticulous tracking prevents these costly errors.

Ontario Provincial Payroll Compliance

Ontario employers face additional compliance requirements beyond federal CRA rules. Our payroll services ensure you meet all provincial obligations:

Employment Standards Act (ESA) Compliance:

  • Minimum wage compliance (currently $17.20/hour as of October 2024)
  • Overtime pay calculations (1.5x regular rate after 44 hours/week)
  • Public holiday pay calculations for Ontario’s 9 statutory holidays
  • Vacation pay calculations (4% for less than 5 years, 6% for 5+ years)
  • Paid sick leave tracking (Ottawa’s permanent 5 paid sick days requirement)
  • Record retention compliance (3 years minimum)

Workplace Safety and Insurance Board (WSIB):

  • Registration with WSIB for new employers
  • Classification of workers by rate group
  • Monthly/quarterly premium calculations and remittances
  • Reconciliation of actual payroll to estimated premiums
  • Clearance certificate applications for construction contractors

Ontario Health Premium:

  • Calculation and remittance of employer health tax (EHT) for payroll over $1M
  • Exemption threshold monitoring for smaller employers

Our deep knowledge of Ontario employment law protects your business from penalties, lawsuits, and Ministry of Labour investigations.

Payroll Software Integration

We don’t believe in forcing you to change your systems. Our team works with the leading payroll platforms used by Canadian businesses:

Ceridian Dayforce:

  • Implementation support and ongoing management
  • Time and attendance integration
  • Complex pay rule configuration
  • Year-end processing and reporting

ADP Workforce Now / ADP Pay@Work:

  • Full platform administration
  • New hire onboarding setup
  • Benefits administration integration
  • Custom report generation

Wagepoint:

  • Setup and configuration for small to mid-sized businesses
  • Direct deposit and cheque processing
  • CRA remittance automation
  • Employee self-service portal management

**QuickBooks Payroll (Online & Desktop):

  • Integration with your existing QuickBooks accounting data
  • Automated payroll journal entries
  • T4/T4A generation within the platform
  • Job costing and class tracking for project-based businesses

Other Platforms:

  • Payworks
  • Paychex
  • Rise
  • Knit
  • Custom or proprietary systems

Our Accounting Intelligence technology can integrate with most payroll systems to perform accuracy checks, identify anomalies, and ensure your data flows seamlessly between payroll and accounting systems.

Year-End Payroll Reconciliation

The transition from one year to the next is a critical time for payroll. Our comprehensive year-end services ensure a clean slate for January:

Pre-Year-End Review (November-December):

  • Verification of employee information (SINs, addresses, names)
  • Review of taxable benefits and allowances
  • Confirmation of CPP and EI maximums reached
  • Analysis of any special payments or adjustments needed

Year-End Processing:

  • Final payroll runs with accurate tax calculations
  • Preparation of T4 and T4A slips
  • Summary reconciliation (T4 Summary, T4A Summary)
  • CRA filing through Internet File Transfer or Web Forms

New Year Setup:

  • Updates for new CPP, EI, and tax rates
  • TD1 form collection and updates
  • New minimum wage compliance
  • Payroll calendar setup for the new year

We provide detailed year-end packages for your records and ensure you’re ready for potential CRA payroll audits.


Specialized Payroll Services

Contractor vs. Employee Classification (CRA Risk Management)

One of the most significant risks facing Canadian businesses is misclassifying employees as independent contractors. CRA is aggressively auditing businesses for this issue, and the penalties—including back taxes, interest, and EI/CPP assessments—can be devastating.

Our contractor classification services help you avoid this risk:

CRA Four-Point Test Analysis:
We evaluate your working relationships against CRA’s four criteria:
1. Control – Who directs how, when, and where work is performed?
2. Ownership of tools – Who provides the equipment and materials?
3. Chance of profit/risk of loss – Does the worker bear financial risk?
4. Integration – Is the worker integrated into your business operations?

Risk Assessment & Documentation:

  • Written assessments of contractor relationships
  • Recommendations for restructuring high-risk arrangements
  • Assistance with CRA reassessment responses
  • Guidance on drawing the line between employee and contractor

T4A Compliance:

  • Proper reporting of fees for services
  • GST/HST number verification for contractors
  • Records of payments for cross-referencing

Our AI-powered Accounting Intelligence system flags potential misclassifications by analyzing payment patterns, engagement terms, and other risk factors—helping you address issues before CRA knocks on your door.

AI-Powered Payroll Accuracy Checking (Accounting Intelligence)

What sets Insight Accounting apart is our proprietary Accounting Intelligence technology—a patent-pending system that brings artificial intelligence to payroll processing.

How It Works:
Our AI system continuously monitors your payroll data to:

  • Detect anomalies – Identifies unusual pay amounts, excessive overtime, or suspicious patterns
  • Validate calculations – Cross-checks tax withholdings, CPP, and EI against CRA tables
  • Spot errors – Flags missing SINs, invalid addresses, or incomplete records
  • Predict compliance risks – Identifies potential ESA violations or CRA red flags
  • Learn your patterns – Recognizes your business’s normal payroll rhythms and alerts on deviations

Benefits for Your Business:

  • Catch errors before they reach employees
  • Prevent costly CRA reassessments
  • Reduce year-end adjustment headaches
  • Gain confidence in your payroll accuracy
  • Free up your time to focus on running your business

Accounting Intelligence doesn’t replace human expertise—it enhances it. Every AI-flagged item is reviewed by Bader Chowdry or a senior team member, combining machine precision with professional judgment.

Benefits and Group Plan Administration Support

Managing employee benefits alongside payroll adds another layer of complexity. We provide support for:

Group Benefits Integration:

  • Coordination of health, dental, and insurance deductions
  • Cost-sharing calculations (employer vs. employee portions)
  • New hire enrollment and termination processing
  • Taxable benefit calculations for life insurance and critical illness coverage

Retirement Savings Plans:

  • RRSP and pension contribution processing
  • Group RRSP administration
  • Matching contribution calculations
  • Year-end pension adjustment (PA) reporting for RPPs

Additional Benefit Types:

  • Company car taxable benefit calculations
  • Employee loan interest benefit calculations
  • Stock option reporting (T4 Box 38)
  • Wellness allowance and perk taxation

We work with your benefits provider to ensure seamless integration with payroll, eliminating the administrative burden on your HR team.

Multi-Province Payroll

If your business operates across Canada, payroll becomes exponentially more complex. Each province has different tax rates, minimum wages, employment standards, and compliance requirements.

Our multi-province payroll services cover:

Jurisdictional Tax Calculations:

  • Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland & Labrador, Nova Scotia, Ontario, Prince Edward Island, Quebec, Saskatchewan
  • Federal tax plus provincial/territorial taxes for each jurisdiction
  • Quebec Revenue Agency (Revenu Québec) remittances and reporting
  • Northwest Territories, Nunavut, and Yukon tax calculations

Variable Minimum Wages & Standards:

  • Tracking different minimum wage rates across provinces
  • Managing varying overtime thresholds (8/40, 44 hours, or daily overtime)
  • Different statutory holiday rules by province
  • Variable vacation pay entitlements

Workers’ Compensation:

  • WSIB (Ontario)
  • WCB (Alberta, BC, Manitoba, Saskatchewan)
  • WorkSafeNB, WorkSafeBC, etc.
  • Multi-jurisdictional registration and reporting

Our systems and expertise ensure consistent, compliant payroll no matter where in Canada your employees work.


Why Choose Insight Accounting for Payroll Services?

CPA Expertise at Every Level

Your payroll is managed by accounting professionals—not data entry clerks. Bader A. Chowdry, CPA, CA, LPA personally reviews complex payroll situations and ensures our processes meet the highest professional standards.

Local Knowledge, National Reach

Based in Mississauga at 4300 Village Centre Ct, Unit 100, we understand the unique business landscape of the GTA and Toronto. At the same time, our capabilities extend across Ontario and Canada for businesses with multi-location operations.

Technology-Driven Accuracy

Our Accounting Intelligence AI system catches errors that traditional payroll processing misses. Combined with cloud-based software, we offer a modern payroll experience with old-school attention to detail.

Transparent Pricing

No hidden fees or surprise charges. We quote fixed monthly rates based on your employee count and payroll complexity—so you can budget with confidence.

Responsive Support

Payroll questions can’t wait. When you call (905) 270-1873 or email info@insightscpa.ca, you get a timely response from someone who knows your account—not a call centre.


Frequently Asked Questions (FAQ)

How much do payroll services cost in Mississauga?

Our payroll pricing depends on your number of employees and pay frequency. Most Mississauga businesses with 5-20 employees pay between $150-$400 per month for full-service payroll. We provide fixed-fee quotes after understanding your specific needs—no hidden charges.

What’s the difference between bi-weekly and semi-monthly payroll?

Bi-weekly means 26 pay periods per year (every two weeks), while semi-monthly means 24 pay periods per year (twice a month, usually on the 15th and last day). Semi-monthly is often easier for monthly budgeting and accounting, while bi-weekly is preferred by employees who like consistent “every other Friday” paydays.

What happens if I misclassify an employee as a contractor?

CRA may reassess you for unpaid CPP, EI, and income tax withholdings—plus penalties and interest. The employer is liable for both the employee and employer portions. Our contractor classification review helps you avoid this costly mistake before it happens.

Do I need to register for payroll with CRA?

Yes, you need a payroll account with CRA before your first pay date. We can help you register and obtain your payroll account number (which extends your business number with RP0001).

How long do I need to keep payroll records?

CRA requires you to keep payroll records for 6 years from the end of the last tax year they relate to. Ontario’s Employment Standards Act requires 3 years. We recommend following the stricter 6-year rule.

Can you handle payroll for employees in other provinces?

Absolutely. We process multi-provincial payroll for businesses across Canada, managing different provincial tax rates, minimum wages, and workers’ compensation requirements. Our systems are built for national payroll operations.


Get Started with Professional Payroll Services

Stop spending hours on payroll calculations, worrying about compliance, and stressing over year-end T4s. Let Insight Accounting CPA Professional Corporation handle your payroll so you can focus on growing your business.

Contact us today:

📍 Address: 4300 Village Centre Ct, Unit 100, Mississauga, ON L4Z 1S2
📞 Phone: (905) 270-1873
📧 Email: info@insightscpa.ca
👤 Author: Bader A. Chowdry, CPA, CA, LPA — AI Inventor & AI Specialist

Accounting Intelligence — Patent Pending


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Serving businesses in Mississauga, the GTA, Toronto, and across Ontario and Canada with professional payroll services, T4/T4A preparation, ROE filing, CRA remittances, and payroll compliance.