Legal analysis: 1. The validity period of the business license of individual industrial and commercial households is permanent; The business license of a sole proprietorship enterprise is usually one year, and it can be renewed after its expiration

2. The validity period of the registration certificate of the representative office is 1 years, and the extension formalities should be handled every year

Legal basis: Article 14 of the Regulations on Individual Industrial and Commercial Households shall apply to the registration authority for annual inspection, and the registration authority shall verify the registered items of individual industrial and commercial households and the operating conditions of the previous year according to law. The registration authority shall not charge any fees for the annual inspection.