AdvertisementThe IRS misses billions in uncollected tax each year. Here's whyUpdated April 19, 2022Daniel EstrinAlejandra Marquez JanseAmy IsacksonfacebookEmailDeputy Treasury Secretary Wally Adeyemo says the bureau needs more funding to increase staffing and update technology to better serve Americans in the tax filing process. (Getty Images)This article was originally published on April 18, 2022.