- After issuing an invoice, corrections can be made through an additional document that refers to the original invoice, revokes it, or supplements it.
- Corrections can be made for the following reasons: overcharging VAT that was not initially invoiced, correcting a too low VAT rate on the invoice, or changes in fees.
- These rules also apply if the recipient of the service initially issued a credit note that needs to be corrected for one of the mentioned reasons.
- Example 1: A consulting company realizes that their previous revenues should have been subject to VAT and registers retroactively. They can then invoice the VAT to their customer, who agrees to the correction.
- Example 2: A catering company provides services and supplies for an event. They initially invoiced the services at a reduced VAT rate but later realize that the full rate should apply. They can correct the invoice and charge the correct VAT rate to the customer.
Source: gate.estv.admin.ch
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.