How bimonthly payrolls improve payroll accuracy?

Bimonthly payrolls align government remittances and ensure more accurate and compliant paycheques in Canada. Thanks to a balanced cadence, payment discrepancies are corrected faster, retroactive adjustments are minimized and employees benefit from more transparent paycheques, all while meeting legal requirements. In this article, we’ll explore how this works, its concrete benefits, the legal constraints in Canada and how Nethris can facilitate their implementation.

What are bimonthly payrolls and why do they matter?

Definition and frequency comparison (biweekly vs. weekly / monthly)

A bimonthly payroll records work hours, overtime, absences and bonuses over a bimonthly period (typically 24 cycles per year). It takes place twice a month on fixed dates throughout the year (for example, on the 15th and 30th of each month).

Comparison:

• Weekly: very close monitoring, but higher administrative workload (52 pay periods).
• Biweekly: a balanced option that reduces administrative workload while maintaining consistent payroll control and cost visibility (26 pay periods).
• Monthly: fewer cycles (12 pay periods).

Bimonthly frequency offers a compromise: regular enough to catch and fix issues early, without the overload of weekly processing.

Impact on payroll cycles in Canada

In Canada, bimonthly pay cycles are used to better align with government source deductions (CPP, EI, income tax). For instance, the Canada Revenue Agency’s Payroll Deductions Online Calculator (PDOC) supports bimonthly pay periods.

Legal and regulatory considerations in Canada and Quebec

Pay frequency laws (federal guidelines, Québec and CNESST)

At the federal level (source deductions), CRA requires that all applicable deductions (taxes, contributions) are calculated and deducted with every pay period.

In Quebec, the law requires pay to be issued “at regular intervals no longer than 16 days.” For some exceptions (e.g., executives), monthly frequency may be accepted, provided legal conditions are met.

Employers must also identify pay frequency and payment deadlines in pay documents.

Payroll deductions: EI, CPP, QPP, QPIP – timing and accuracy

Bimonthly payroll ensures compliance with both provincial and federal laws and regulations.

To calculate accurate deductions, employers can use the CRA’s Payroll Deductions Online Calculator (PDOC), which supports bimonthly pay periods.

It’s also crucial to ensure that total annual deductions match official thresholds, easier to manage with more frequent paycheques.

In Quebec, employees contribute to the Quebec Pension Plan (QPP) instead of the federal CPP. Employers must apply the correct deductions.

If the employment is insurable, the employer must also withhold contributions for Employment Insurance (EI) and Quebec Parental Insurance Plan (QPIP)

How Nethris facilitates bimonthly payroll management

Here’s how Nethris payroll service makes bimonthly payroll implementation easy, reliable and compliant:

Automating time tracking and payroll processing

Nethris lets employees enter their hours, submit time-off requests and sync that data with payroll automatically.

It calculates regular hours, overtime, bonuses, absences, etc., twice a month.

Built-in compliance with CRA and provincial laws

Nethris is built to comply with Canadian and Quebec tax and labour laws (CPP/QPP, EI, income tax, QPIP).

With automatic updates, the system applies current deduction tables and rates. It also generates legally compliant paycheques with all required details.

Integration with HR workflows and reporting

The platform provides detailed reports on variances between submitted time and paid hours, retroactive adjustments and cycle compliance.

It integrates with Nethris Evo, the talent management system (absence management, approvals, controls). It enables payroll staff to monitor cycles​​ and run payroll with confidence.

Real-world impacts: accuracy, savings and employee trust

Time saved in administrative processing

• Fewer manual revisions or missed validations.
• Better alignment with CRA/Revenu Québec remittances.
• Smoother and faster payroll execution.

Positive impact on employee morale and trust

• More frequent and transparent paycheques.
• Easier for employees to verify their hours.
• Increased trust in HR/payroll teams.

Frequently Asked Questions – bimonthly payrolls and payroll accuracy

What is a bimonthly payroll in Canada?
It is a fixed payroll frequency that occurs twice a month throughout the year (for example, on the 15th and 30th of the month).

Is bimonthly payroll better for accuracy than monthly?
Yes. The shorter cycle simplifies reconciliation and allows faster corrections before they impact multiple paycheques.

Are employers required to use bimonthly payrolls in Quebec?
No. But employers must pay employees at least every 16 days, so bimonthly is compliant with the legislation. Weekly or semimonthly are also acceptable as long as legal requirements are met. In Quebec, biweekly payroll (26 pay periods) is more common among our clients.

How does Nethris ensure payroll accuracy with bimonthly data?
Nethris automates timesheet processing, applies up-to-date tax tables (federal and provincial), generates compliant paycheques and provides variance reports to ensure accuracy and compliance.