Enterprise Tax Solutions Inc is an SAP Tax Technology consulting services and international tax software development company based out of Mount Pleasant, Michigan, United States. It specializes in the SAP Data Retention Tool (DaRT), implementing SAP from a tax perspective, and XML file generation and validation for Standard Audit Files for Tax (SAF-T). Products include eTaxAudit International, eTaxEcho, and tools to validate DaRT files to the underlying SAP database in compliance with IRS Revenue Procedure 98-25.