Electronic invoices must be issued on the delivery date for most goods and services, but for continuous utilities and similar services, they are issued monthly on the last day, with a deadline for provision by the 10th of the following month. Changes to the cost of goods require issuing corrected invoices and amending the corresponding tax report.
Source: facebook.com
Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.
