The Economist writes that the Federal Tax Service has begun testing a system to search for hidden income of self-employed Russians. In particular, it is reported that in Russia they are testing a model that will identify self-employed persons with suspicious activity in the "My Tax" application, write in the media. The main reason for verification would be the systematic cancellation of checks. Since the beginning of the year, the Federal Tax Service has already prosecuted about 3,000 self-employed people for illegally canceling checks in the amount of about 300 million rubles.