Is it reasonable for hotels to earn too much without tickets?

It is unreasonable to get too much income without tickets.

For the income without tickets, we can understand it as sales, but there is no income formed by billing customers. In principle, the act of not issuing invoices according to regulations is likely to face the risk of being fined by the tax bureau.

The reason why there is no ticket income is usually that customers require no invoices. If there is no invoice, the relevant income will be recorded normally, and the tax payable-VAT payable (output tax) will be confirmed.