Through what channels can taxpayers consult the tax authorities about policies, reflect problems and report tax violations?

1, taxpayers can consult the tax authorities about tax policies through the following channels: (1) Call the tax service hotline12366; (2) Log on to the website of the tax authorities; (3) consulting the tax service hall of the tax authorities; (4) consulting tax administrators; (5) directly consult the relevant functional departments of the tax authorities. 2. Taxpayers can reflect problems and report tax violations through the following channels: (1) 12366 tax service hotline (2) website of tax authorities (3) discipline inspection and supervision department of tax authorities.