Yes. You can convert your private BahnCard to a BahnCard Business at any time, if it is in the same class and discount level.

First, order the new BahnCard Business. Then inform BahnCard Service of your wish for an extraordinary termination of your existing BahnCard. Please use the exchange form for this purpose.

The remaining value of the original BahnCard (provided it is at least 15 EUR) will be refunded to the account you specified on the exchange form.

It is not possible to convert a BahnCard Business to a private BahnCard.