You can go to the tax bureau to check whether the individual is in double batch or single batch. According to the query, the electronic tax bureau and the lobby query have the working performance of double verification and single verification of related queries. Double verification is generally a regular quota for individual industrial and commercial households, that is, within a certain operating time, usually a fiscal year, it is declared according to the prescribed turnover. Double verification refers to the verification of value-added tax and the summary of income tax, that is, the tax authorities verify a turnover according to the size, geographical location and products of individuals. Through inquiry or investigation, self-employed individuals only need to pay two taxes and fees per month according to the approved turnover. For example, a monthly turnover of 6,543,800 yuan is approved, and a quarter is 300,000 yuan. Therefore, according to the latest preferential policies of the country, both value-added tax and income tax are exempted, which is also commonly known as double exemption. If the approved turnover is 6,543,800+and the actual business billing income reaches 200,000, the tax shall be declared according to the actual income; otherwise, it shall be declared according to the approved turnover and interpreted according to the latest policy, regardless of the tens of thousands approved by the tax authorities.