Cash register requirement: dealing with the deductible
Andreas Westermeyer, Managing Director of the Federal Automotive Technology Guild, explains the correct handling of deductible payments as part of the cash register requirement using an example:

Cash register requirement: dealing with the deductible
The damage (repair) amounts to €1,300; the customer has a deductible of €300. The total invoice (€1,300) is sent to the insurance company using an electronic claims management system (e.g. Nexa, QuickCheck, Topreport, etc.), and the insurance company transfers EUR 1,000 without any deductible.
The customer then pays the deductible in cash.
Question: Does a receipt have to be handed over in accordance with the cash register requirement?
“The deductible has already been shown in the invoice to the insurance company; according to our experts, this process can be seen as a cash payment (or partial payment or down payment) of an invoice that was previously sent out with a payment slip.”
Therefore, this deductible is a cash transaction and must be recorded in the cash register. It is sufficient if the receipt says: “Deductible for invoice no. XXX”, sales tax 0%.