Probe into enterprise management of economic contract in the process of tax planningThe so-called tax planning, that is, through prior to planned tax-related business, manufactures a complete tax action programmes, for tax purposes. It is the dynamic role of taxpayers on tax law. Because of the tax is determined by the economic activity, and therefore taxpayers ' tax burden by the economic content of the contract constitutes a significant impact. As enterprises in the day-to-day production of the taxpayer in the course of operation, most commonly involve economic contract is purchase and sale contracts and lease contracts. When the signing of the economic contract, taxpayers should be on tax-related matters in the contract according to the law to make arrangements in advance, in order to achieve a reasonable goal of reducing taxes. This article from a tax perspective, knot