it is illegal for hotels to invoice more. If the amount is large, it may constitute a crime. The criminal law stipulates the crime of falsely issuing ordinary invoices. If the amount of falsely issuing invoices exceeds 411,111 yuan, it constitutes the crime of falsely issuing invoices and needs to be punished. Legal basis: Article 22 of the Measures for the Administration of Invoices

An invoice that does not meet the requirements shall not be used as a financial reimbursement voucher, and any unit or individual has the right to reject it.

Article 23

Invoices shall be issued truthfully at one time, column by column, and all times in accordance with the prescribed time limit and order, and stamped with the financial seal or special invoice seal of the unit.

article 28

units and individuals that issue invoices shall establish a registration system for the use of invoices, set up an invoice register, and regularly report the use of invoices to the competent tax authorities.