No. If you have created an offer and it turns out later that the wrong tax type was selected, this can no longer be changed after creation. In this case, you would either have to create a new offer with the same parameters or copy the existing offer and change the tax type in the copy. The copy function copies all the settings of the offer one-to-one, making it easier to create a new one.
Note: Please note that changing a copied offer has no effect on the existing offer. Neither the offer ID nor the customers who purchased the original offer will be transferred. The copy function only duplicates the parameters. A completely new offer is created in this sense.