We develop tax compliance software for accountancy firms in Ireland, covering both income tax and corporation tax. Our software helps firms prepare returns accurately and file directly to Revenue on Line Service. 

Personal TaxPro and Corporation TaxPro are used by accountancy practices across the country. Our Personal Tax software is the leading Irish solution, used by all of the Big 4 and the top 20 firms. 

We also provide Go Client Connect, a secure client portal that simplifies client communication, document sharing, and compliance tasks such as AML. 

In addition, we build bespoke software solutions for firms with specific requirements. 

Although independently developed, our tax software is the Sage tax solution in Ireland. 

Our team brings together tax consultants with real practice experience, dedicated support specialists, QA engineers, and experienced developers — ensuring our software reflects how firms actually work. 

Our support is widely regarded by accountants as the most responsive, flexible, and reliable in the market. 

ITSS

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ITSS

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