The IRS website notes that as of December 9, 2022, it had 2.5 million individual returns received during the 2022 calendar year that are still unprocessed, including returns from 2021 tand late returns filed from previous years. An estimated one million of these returns are paper returns that are awaiting review and processing.
The IRS backlog reported there were about 7.6 million unprocessed individual returns along with nearly 6.7 million unprocessed business returns as of August 12, 2022.
In early 2022, the IRS suspended a number of collection notices and activities as it worked through the backlog. No announcement has been made of those activities being reinstated as the number of unprocessed returns continued its decline as the year came to a close.