One week to the end of the 2020 tax season (May 17, 2021), the IRS backlogs keeps growing mainly driven by manual reviews and checks due to the unemployment benefits exclusion ($10,200), stimulus checks (rebate credit) that might not have reported accurately in the 2020 tax return, and other items such as Earned income credit.
CBS News’ article – https://www.cbsnews.com/news/tax-refund-delay-backlog-growing-irs/.
