1. First of all, if you have applied for an invoice or issued an invoice through the electronic tax bureau and selected "Mail", it is in the status of "undelivered".

2. Secondly, you can click to cancel the mailing order and change it to "self-collection by the tax office".

3. In the end, the mail order that has been delivered by the tax authorities cannot be cancelled. At this time, you can contact the administrator to see if it can be modified.