Is a retroactive cancellation possible? Ing. Oliver Baltz October 11, 2022 18:46 Updated Cancellation is possible at any time, but not retroactively. Related articles Why did I receive an invoice including VAT as a company outside Germany? Why have I received a payment reminder? How is the price calculated? How long is the notice period? More contacts were synchronized unscheduled. How can I have an invoice cancelled? Comments 0 comments Please sign in to leave a comment.