If you find that the company has tax problems, you can take the following steps to make a complaint:

1. Collect evidence: First of all, you need to collect evidence about the company's tax issues, such as the company's financial statements, tax returns, invoices, etc. This evidence can help you prove the company's tax problems.

2. Contact the tax department: You can contact the local tax department and report the company tax problems found to them. You can provide the evidence you collected to the tax authorities for investigation.

3. Submit a letter of complaint: If you cannot directly contact the tax authorities, you can submit a letter of complaint to the local tax regulatory authorities or relevant regulatory agencies. In the complaint letter, you need to explain in detail the company tax problems you found and provide relevant evidence.

4. Seek legal help: If you think that the company's tax issues involve illegal activities, you can seek legal help. You can consult a lawyer or legal adviser to know your rights and available legal channels.

To sum up, complaining about the company's tax problems requires you to collect evidence, contact the tax department or submit a letter of complaint, and you may also need to seek legal help.

Legal basis:

According to the Law of People's Republic of China (PRC) on Tax Collection and Management, taxpayers should pay taxes according to law and abide by tax laws and regulations. Taxpayers have the right to investigate and deal with illegal acts. At the same time, if you think that the corporate tax issue involves illegal activities, you can report it to the public security organ.