Where is the tax priority identification code of insurance?

According to Cailadder.com's inquiry, the tax priority identification code of insurance is generally in the upper right corner of the policy. As a string of 18 digits, the insured can apply for tax reduction and preferential treatment by virtue of the tax priority identification code. Insurance tax preferential identification code refers to the tax preferential health insurance jointly launched by the state and insurance companies, which can deduct some taxes. However, the insurance tax preference identification code is attached to the tax preference health insurance policy. Generally, in the upper right corner of the policy, only insurance products with tax preference identification code can enjoy tax deduction. The essence of tax-excellent health insurance is the last year's medical insurance plus universal insurance, which is difficult to buy in the market. The insurance products we usually buy, such as commercial critical illness insurance, accident insurance and life insurance, are not tax-preferential health insurance, and there is no tax-preferential identification code.