At present, the self-employed tax authorities have been semi-computerized. There is a software that can count the size of the store, the number of employees and the income of your industry. Therefore, according to your scale of more than 30 square meters, the scale of operation is not small, and it is estimated that it cannot be tax-free.

After being approved by the tax authorities, you can carefully record your business status. After 3 months, if you really can't reach the threshold, you can apply for tax exemption again.