How do I extend my Hungary Researcher permit, and what is the deadline?

You must apply to extend within Hungary using the Enter Hungary online platform while your current permit is still valid. The application has to be submitted no later than thirty days before the expiry date, so set a reminder well in advance.

To qualify for an extension you need to have actually been residing in Hungary, generally at least 90 days within any 180-day period. Missing the deadline or failing the residence condition can put your legal status at risk, so do not leave the renewal to the last week.