Plus TIN Checker


A Plus TIN Checker (Tax Identification Number Checker) is a module of the Plus Workflow system. It enables checking the VAT taxpayer status directly in the Ministry of Finance database.


The Plus TIN Checker is another functionality of the Plus Workflow system for business processes management. The plugin enables checking the correctness of the TIN as well as VAT taxpayer status directly from the Ministry of Finance database. All of that swiftly and effortlessly on the stage of cos document registration. Moreover, to check this status, the Plus Workflow user does not have to use any other applications or switch between different browser windows. The feedback is sent via the Ministry of Finance service and saved in the process history as a comment or form variable. Furthermore, if the verification took place within the last 12 hours, the system reads the data saved in the server’s memory.

The Plus Workflow system allows launching the Plus TIN Checker in one of the following ways:

  • exit the ‘Contractor’s TIN’ field form – after entering a contractor’s Tax Identification Number, the system verifies whether the contractor is an active VAT taxpayer or not. The message content downloaded from the MF service is presented on a task form in a payer field,
  • ‘Verify the VAT taxpayer’ button – the verification of a contractor’s data in the MF service takes place after selecting a dedicated button located on the task realization form. The form in which the system presents information about a taxpayer depends on the configuration shared by the MF service. It may be a pop-up, automatic task comment, or information in the ‘Taxpayer status’ field,
  • validator below the ‘Register invoice’ button – the data verification starts after selecting the ‘Register invoice’ button. When a contractor fails to be an active VAT taxpayer, the system displays an appropriate message. Whereas after a positive verification, the Plus TIN Checker saves the information in a comment,
  • an automatic task – the data verification starts automatically in a realized task and can be added directly to the process map.


Information about a correct TIN and an active VAT taxpayer status, in the Plus TIN Checker, may be displayed on the task form.

If the contractor is on the Ministry of Finance website as ‘Exempt from VAT’ the system displays a warning. The decision about the continuation of the task rests upon the user.

If the user enters an incorrect TIN, the system will display an appropriate notification on the system desktop. As the system is intuitive, it automatically suggests the place of an error to fasten the process of its correction.

License characteristics of the plug-in:

  • License – for the server, an unlimited number of users, processes, and documents,
  • The component designed for the server version of the Plus Workflow,
  • The component is available with the Plus Workflow system license from version 3.1.26.