Can the contract to the tax bureau hide key information?

According to the relevant information, the contract handed over to the tax bureau cannot hide key information. Article 56 of the Law of People's Republic of China (PRC) on the Administration of Tax Collection stipulates: "Taxpayers and withholding agents must accept the tax inspection conducted by the tax authorities according to law, truthfully report the situation and provide relevant information, and may not refuse or conceal it. Therefore, the contract to the tax bureau cannot hide key information.