Can hotel employees issue invoices secretly?

No.

Such behavior violates ethics.

Secondly, it depends on the amount. If the amount is small, it won’t have much impact. If you apologize to your boss, they probably won’t trust you. If the amount is relatively large, it will be troublesome. The company can use the written process as evidence to call the police, and it can also ask you to compensate for the tax lost by falsely issuing invoices. The falsely issued tax amount is more than 10,000 yuan, or the falsely issued special value-added tax invoices cause the state to infringe. Anyone who is defrauded of more than 5,000 yuan in taxes shall be convicted and punished in accordance with the law.