1. Determine the competent tax authority of the company according to the administrative division where your unit is located.

2. You can also call 12366 to report the taxpayer identification number of the fighting fish unit, and then you can determine it.

3. Log in to the electronic tax bureau, click I want to inquire-comprehensive inquiry-taxpayer file inquiry-establishment registration information, and view the competent tax authorities and branches of the competent tax authorities to which the enterprise belongs.