How long do you have to transfer your subscription to the hvv switch app?

As much time as you need for your decision - your switch code, which can be seen on the back of the letter, does not lose its validity.

If you do not carry out the takeover for the time being, a new hvv chip card will arrive in the next few weeks, as the creation has already been triggered. However, since your original hvv subscription will be cancelled by the takeover, the hvv card will then be invalid.