(Looking for our Canadian Payroll Tax Library (CPTL)?  Click here.) 

Payroll software developers can reduce their total costs of development and maintenance, and significantly reduce development time, by employing QPTL in their applications.  QPTL is easy to implement in any payroll application, with full documentation and sample programs provided for use in a wide variety of programming languages and applications, including Google Sheets and MS Excel.

New!  QPTL REST API now available!

QPTL REST API is easy to implement in web-based applications using a standard REST interface.  Download and import our Swagger specification file and start sending payroll deduction calculation requests from your application within minutes.

QPTL is updated whenever Revenu Québec changes/updates their specifications and requirements for payroll withholding calculations - usually on January 1 of each year. Our quality assurance process ensures that all calculations are tested extensively and results match exactly to all Revenu Québec test cases. As a payroll software provider, you can be assured that your Québec payroll tax withholding calculations are up-to-date and accurate with QPTL.

Payroll software vendors typically face the challenge of distributing updates to customers on a timely basis, in advance of implementation dates for new Revenu Québec rates and changes in calculation methods. We update our QPTL REST API service when Revenu Québec publishes changes well in advance of their effective date.  As a QPTL REST API subscriber, you don't need to change anything in your payroll software - QPTL REST API will provide you with updated calculation results in response to your payroll software's existing REST API requests..

Features

• Calculate all required Revenu Québec payroll withholding calculations, including employee QPP, QPIP and Québec Québec income tax withholdings, and employer contributions to QPP, QPIP, and Québec Health Services Fund contributions.
• Calculations for all pay period types, including daily, weekly, bi-weekly, semi-monthly, and monthly.
• Calculations for all types of earnings subject to Québec payroll tax withholding, including Salary, Wages, Vacation Pay, Pension Income, Bonuses, Retroactive Pay, & Commission payments.
• QPTL REST API calls can be implemented quickly and easily into any web-based payroll application.
• Reduce annual costs of developing and maintaining up-to-date Québec payroll deduction calculations code.
• Our extensive testing and results verification process ensures the accuracy of payroll deduction calculations returned by the QPTL. QPTL calculation results are verified against all Revenu Québec provided examples and test case results and we regularly test our QPTL results against results from Revenu Québec's webRAS service.