How long is the Czech student residence permit valid and can it be extended?

The student permit is generally issued for up to one year, with extension to two years in specific circumstances allowed by law. University-programme students can extend repeatedly for periods of up to two years.

By contrast, language and preparatory course attendees usually get only a single extension, and some categories such as study visits or volunteering cannot be extended at all. Match your renewal expectations to your study type early on.