Under the condition of market economy, the market competition is fierce. In order to survive and develop, enterprises must do well in production, operation and financial management, avoid risks and obtain the best economic benefits. TravelSky software communicates information and elements with the national tax-related system, and handles various taxes (such as value-added tax, income tax, business tax, consumption tax, customs duties, export tax rebate, etc.). ) participate in the business process of the enterprise. It can not only calculate all kinds of tax payable for tax declaration, but also evaluate the accounting, ticket, operation, accounting and tax payment of enterprises, so as to better help enterprises correctly implement the national tax policy and carry out overall business planning and tax payment.