The deadline for applications to the Tax Incentive System for Business Research and Development (SIFIDE) ends on May 31. It is a tax incentive that supports the research and development effort, by deducting from the collection of the IRC a percentage of the respective R&D expenses. All IRC taxpayers can apply as long as the taxable profit is not determined by indirect methods, and they are not indebted to the Tax Authority and Social Security. Research expenses cover all internal and external activities carried out by the IRC taxpayer with a view to acquiring new scientific or technical knowledge. Development expenses include activities carried out by the IRC taxpayer through the exploitation of results of research work or other scientific or technical knowledge with a view to discovering or substantially improving raw materials, products, services or manufacturing processes. Find out which expenses are eligible, financing rates and which documents are required for the application. More information: or 21 360 10 20.