System requirements

This table shows the required software components to run the Spanish Tax Authority Connector:

Component	Supported release	Note
Operating system	Windows 11 Windows 2019/2025
Java runtime	Corretto 11 17 21	Requires 64-bit JVM on a 64-bit machine
Application server	Tomcat 9.0.x 10.1.x Tomcat 11	Required only if you are using the Tax Connector Inquiry.
Certificate	This software requires a certificate that will allow communication with the web service to take place. The certificate comes in the form of a personal exchange format (PFX) file, which you need to obtain from the Spanish authorities.
File Transfer Utility	If the ERP is deployed in the cloud, then you need a means of transferring the proprietary files from the cloud to on premise.

This software must also have access to the files to be sent to the Spanish web server. These files can reside on the same pc or server as the software, or be accessed through a network drive using Universal Naming Convention (UNC) notation.

This table shows the required software components to run the Spanish Tax Authority Inquiry:

Component	Supported release
Web browser	Internet Explorer 11.x or later Chrome Edge