Workers Compensation Board (WCB)

​

Supported Regions

• Alberta – WCB Alberta
• British Columbia – WorkSafeBC
• Manitoba – WCB Manitoba
• New Brunswick – WorkSafeNB
• Newfoundland and Labrador – WorkplaceNL
• Northwest Territories and Nunavut – WSCC
• Nova Scotia – WCB Nova Scotia
• Ontario – WSIB
• Prince Edward Island – WCB PEI
• Quebec – CNESST
• Saskatchewan – WCB Saskatchewan
• Yukon – Yukon Workers’ Compensation Health and Safety Board

​

Enabling WCB Calculation

• Ontario: ca::on::workers_compensation_class
• Quebec: ca::qc::workers_compensation_class
• Yukon: ca::yt::workers_compensation_class

• rate (number, required) – The WCB premium rate to apply (e.g., 1.85).
• code (string, required) – The business’s WCB classification or rate group code.
• industry (string, required) – A plain-text label describing the business activity or industry.
• historical_remuneration (number, optional) – Year-to-date insurable earnings for the work-assignment, used to reduce premiums at the annual provincial maximum.

"value": {
  "rate": 1.85,
  "code": "83202",
  "industry": "Technology consulting",
  "historical_remuneration": 740000
}

WCB will not be calculated for any work-assignment unless a valid tax-property is configured for its province of work. A Work Assignment uses its Province of Employment as its Province of Work unless a ca::province_of_work Tax Property sets a different one. See Province of Employment and Province of Work.

​

Provincial Maximums

​

Sample Request

  curl --request POST \
     --url https://sandbox.nmbr.co/services/payroll/tax_properties \
     --header 'Authorization: Bearer <access_token>' \
     --header 'accept: application/json' \
     --header 'content-type: application/json' \
     --data '{
          "owner_id": "<work_assignment_id>",
          "effective_from": "2025-01-01",
          "type" : "ca::bc::workers_compensation_class",
          "value" : {
              "rate" : 2.1,
              "code": "88500",
              "industry": "Software development",
              "historical_remuneration": 1250000
          }
        }'

​

WCB Calculation

• Payroll remuneration – Total insurable earnings in the payroll, by province.
• Rate – The WCB rate provided in the tax-property.
• Classification code and industry – For reference and reporting.
• Provincial maximums – premiums are capped at the maximum insurable earnings per employee per year, based on province of work.
• Historical remuneration – Used to calculate the total to-date remuneration for the work-assignment in the province of work.

Once the annual cap is reached, no further WCB premiums will accrue for that work-assignment in the applicable province for the remainder of the year.

​

Remittance

​

Enabling Automated Remittance

curl --request GET \
   --url 'https://sandbox.nmbr.co/services/payroll/remittance_accounts?business_entity_id=<business_entity_id>&category=ca_workers_compensation' \
   --header 'Authorization: Bearer <access_token>' \
   --header 'accept: application/json'

​

WCB Reporting