Which years can I file for?
Which tax years the app supports and how to do several years together.
Available years
When you create a return you see all tax years the app currently supports. Every year is its own return with its own progress.
Several years
With "Money from previous years" you start several years at once and take unchanged details such as address or employer over to the next year.
Deadlines
Different deadlines apply to mandatory and voluntary returns. If you are not sure whether you are required to file, ask the tax office.