I don't have an answer as I was also unable to find this statistic anywhere.u00a0 I can tell you that the Social Security Administration actually processes W2's and forwards the information to the IRS.u00a0 1099's however are processed by the IRS directly.The closest statistic I can find is that in 2022 there were 117,820,074 tax returns processed that showed salaries and wages (W2 income) on them.u00a0 That does not allow for returns where the taxpayers have multiple W2's nor does it allow for people who received a W2 and did not file a tax return, so all I can say is the number of W2's is something larger than 117M.