How many times can you retake the theoretical driving test in Germany?

There is no legal maximum number of retakes for the theory test; you can take it as many times as needed until you pass.
After each failure, you must wait at least 14 days before the next attempt, based on § 18 of the Driver Licensing Regulation (FeV).
If cheating or an attempt to cheat occurs, the attempt is void, and the waiting period can be extended to up to nine months according to TÜV/DEKRA rules.
Your application usually remains valid with the licensing authority for twelve months; if a full year passes without passing the theory test, you must apply again and pay the fees again.

In short: you can retake the theory test an unlimited number of times, with a 14-day gap between attempts, and you should pass within 12 months of your first application.

— The website’s writers and editors strive to provide accurate information through extensive research and multiple sources. However, mistakes may occur or some details may remain unconfirmed. Please treat this as an initial reference and always consult the competent authorities for confirmed information.