The Effect of Tax Incentives on High-Tech Industries Innovation

High tech industry is the core force of national industrial development, covering medical, electronic communication, computer and other important fields. In recent years, the U.S. Department of Commerce has successively included Chinese enterprises involved in scientific and technological R&D in its "entity list" for import and export control. ZTE, Huawei and other enterprises relying on high-tech industry development have been seriously affected. Therefore, only by accelerating the development of independent high-tech industries can we have a say in the international competition. In order to quantify the effect of preferential tax, this paper divides preferential tax into general preferential tax and special preferential tax according to different incentive objects and scope of the application of preferential tax, studies the impact of these two policies on innovation efficiency of high-tech industries, and puts forward targeted suggestions on the basis of empirical analysis conclusions. In terms of innovation capacity efficiency, first, R&D expenses should be calculated and deducted in progressive proportion to further encourage the enthusiasm of high-tech industry in innovation input; Second, consideration should be given to both input and output when formulating preferential tax policies.