Vertex Payroll Tax API Implementation

To implement Vertex Payroll Tax, the system implementor must:

1. Load the APIs.
2. Build an interface between your Employee Maintenance interface and the APIs.
3. Build an interface between your payroll processing application and the APIs.

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Note: You may need to consult your Human Resources or Payroll professional to make tax-related decisions that affect specific portions of the interface, such as identifying the default calculation method for different types of pay in your jurisdiction.

Tax data

Vertex researches and maintains the information contained in Vertex Payroll Tax by remaining in constant contact with all jurisdictions that levy a tax. Vertex updates the Vertex Payroll Tax data each month.

Vertex Payroll Tax data flow

Here's how information flows between your host system and Vertex Payroll Tax:

1. From your host HCM and staffing applications, your payroll database sends data to the employee maintenance interface and the payroll processing application.
2. Each of those items then integrates with Vertex Payroll Tax.
3. The employee maintenance interface sends and receives GeoCoder data through the GeoCoder API. The payroll processing application sends and receives payroll tax data through the Payroll Tax API.

Before you begin

Before you begin writing your integration, Vertex recommends that you:

• Complete the registration process as provided in your Vertex Payroll Tax invitation email.
• Set up and create an API implementation by:
  • Creating a security credential.
  • Requesting an access token.
  • Using an access token to authorize a request.
  • Review the endpoints in the Vertex Payroll API Requests Reference.