It is estimated that up to EUR 10 billion in taxes are evaded annually through cash register manipulation in Germany. The tax authorities are therefore particularly interested in checking whether the cash registers in companies are being used properly and whether the business transactions are being recorded correctly. This can be verified by a Cash Register Audit. In this context, so-called "cash-intensive companies" (bargeldintensive Betriebe) are of particular interest. Cash intensive is a term to describe a business that predominantly or almost exclusively generates cash sales and for which it is particularly easy not to declare all income. This category includes hairdressers, restaurants, kiosks and pharmacies.