There are many ways for the tax bureau to know if a business is evading taxes. A while ago, the tax bureau's website also announced the Golden Tax IV procurement program, as well as the anti-vote laundering system of the project contract, with the arrival of the era of big data, the system to identify corporate tax evasion is also constantly upgraded. Tax evasion by property companies can be reported to the reporting center of the competent tax office where the property company is located. You can call, write a letter, or any other convenient method. Only issued receipts, not invoices, not according to the declaration and payment of taxes, is a tax evasion behavior.