The penalty for the late filing of a Denmark visa application form may vary depending on the specific circumstances and the discretion of the authorities. In general, late filing may result in processing delays or the rejection of the application. It is important to submit the visa application form within the designated timeframe to avoid any potential penalties or issues with the application process. It is recommended to consult the official website of the Danish immigration authorities or contact the Danish embassy or consulate for accurate and up-to-date information on visa application procedures and potential penalties.