Legal analysis: The consequences of an enterprise not filing tax returns are as follows: 1. If the enterprise fails to file tax returns within the time limit stipulated by the tax bureau, if the circumstances are minor, the tax authorities will impose a fine of more than 200 yuan on the enterprise every month in addition to paying back the tax, and an overdue fine will be added for a long time; If the circumstances are serious, the tax authorities will impose a higher fine according to the seriousness of the case; 2. If it fails to report to the tax registration authority for three consecutive months, the tax registration authority will cancel the tax registration certificate of the enterprise. After cancellation, it will be impossible to recover, that is, all the licenses of the enterprise will be invalid one after another due to the cancellation of the tax registration certificate. 3. If the tax registration certificate is cancelled without the consent of the tax registration authority, it will apply to the issuing authority for cancellation, and all other certificates of the company will be invalidated one after another. 4. The identity card information of all shareholders of the company will be blacklisted by the relevant registration authorities. In the future, loans, reinvestment, and going abroad will all be affected.

Legal basis: Article 62 of the Law of People's Republic of China (PRC) on Tax Collection and Administration, if a taxpayer fails to file tax returns and submit tax information within the prescribed time limit, or a withholding agent fails to submit a tax withholding report and relevant information to the tax authorities within the prescribed time limit, the tax authorities shall order it to make corrections within a time limit and may impose a fine of less than 2,000 yuan; If the circumstances are serious, a fine of not less than two thousand yuan but not more than ten thousand yuan may be imposed.