Is it illegal for taxes to secretly owe social security fees? How to deal with it?

Illegal; Declare to the tax authorities.

According to official website, it is a violation of the social insurance law for tax authorities and employers not to pay social insurance premiums, which is a kind of tax violation. According to the Measures for the Administration of Reporting Tax Violations, a unit or individual can report to the tax authorities the unpaid social security fees of the employer, and the tax authorities shall promptly accept, review and deal with them, and keep the information of the informants confidential. There are many ways to report the employer's failure to pay social security fees. You can provide the name, address (domicile) and tax violation clues to the tax authorities by letter, telephone, fax, internet, visit, etc. As far as possible, provide the unified social credit code (ID number), legal representative, actual controller information and other relevant certification materials of the sued unit.