This is a tax control regulation for taxpayers engaged in production and business operations to open deposit accounts in banks or other financial institutions.

According to Article 17 of the Law of People's Republic of China (PRC) on Tax Collection and Administration and Article 17 of the Detailed Rules for the Implementation of the Law of People's Republic of China (PRC) on Tax Collection and Administration, taxpayers engaged in production and operation shall, in accordance with relevant state regulations, declare all their accounts to the competent tax authorities in writing within 15 days from the date when banks or other financial institutions open basic deposit account and other deposit accounts.

If the account is changed, it shall be reported to the competent tax authorities in writing within 15 days from the date of change. According to Article 60 of the Tax Administration Law, if a taxpayer fails to declare all his bank accounts to the tax authorities as required, the tax authorities shall order him 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 shall be imposed.