I don't have to do anything, I get a single form (1099? Don't remember) per source with gains and that's it. Don't even have to send in those forms with the ret

I don't have to do anything, I get a single form (1099? Don't remember) per source with gains and that's it. Don't even have to send in those forms with the return anymore. Is there some number where you have to fill out stock sales?