1. Go to the official website of the National Enterprise Credit Information Disclosure System. The website is jointly set up by the State Administration for Industry and Commerce and local industrial and commercial bureaus at all levels, providing nationwide enterprise credit information disclosure services.

2. Fill in the query field with the name of the individual household or the unified social credit code you need to query.

3. After clicking Query, you will see the basic information and annual inspection information of the self-employed. If the individual household has been canceled or revoked, you will not be able to query the relevant information in the system.

Reasons for abnormal business license of self-employed:

1. Failure to submit annual report on time: self-employed need to submit annual report to AIC from January 1 to June 30 every year. If it is not submitted after the deadline, it will be regarded as abnormal status.

2. Failure to Conduct Annual Business Inspection on Time: According to the regulations, individual households need to conduct annual business inspection from January 1 to June 30 every year. If the annual inspection is overdue, it will be regarded as abnormal status.

3. Being Administratively Punished or Involved in Litigation: If a self-employed person is administratively punished or involved in litigation due to illegal operation, his business license will be revoked or abnormally marked.

How to deal with the abnormal business license of self-employed:

1. If you find that the business license of self-employed is abnormal, you should contact the operator immediately to find out the specific reasons. At the same time, you can learn the detailed information of the self-employed person through the national enterprise credit information publicity system.

2. If the business license of a self-employed person is revoked or cancelled, he should negotiate with the operator for a solution as soon as possible and understand the relevant laws and regulations to avoid subsequent disputes.

3. If the business license of a self-employed person is marked as abnormal operation, the operator should be urged to submit the annual inspection information or accept the punishment as soon as possible to restore the normal operation status.

In summary, checking whether a self-employed person's business license is abnormal is a very necessary business practice. By checking the relevant information through official channels such as the National Enterprise Credit Information Publicity System, you can better understand the status of the operator and avoid business risks. At the same time, if you find that the business license of individual households is abnormal, you should deal with it and solve the problem in time to ensure the smooth progress of business cooperation.

Legal basis:

"Law of the People's Republic of China on Individually Owned Enterprises"

Article 32

After the liquidation of an individually owned enterprise is completed, the investor or the liquidator appointed by the people's court shall prepare a liquidation report, and shall go to the registration authority for registration of the cancellation of the license within fifteen days.