45 days. According to the business license cancellation process of Yichang Industrial and Commercial Bureau, we know that we should first go to the Industrial and Commercial Bureau for record cancellation and publish it in the newspaper. After 45 days, we will submit formal cancellation materials for approval, and we will also cancel the national tax and local tax. After the cancellation of national tax and local tax, the business license shall be cancelled at the industrial and commercial office with relevant information. Therefore, it takes 45 days to cancel Yichang's business license. Yichang is a prefecture-level city and sub-central city in Hubei Province, a regional central city in central China, and a member of the urban agglomeration in the middle reaches of the Yangtze River approved by the State Council.