During a mandatory review of an IRS storage facility in Ogden, Utah, the IRS personnel were unable to locate as many as 168 microfilm backup cartridges, which are used to store old tax records. Each microfilm cartridge holds up to 2,000 photographic images, leaving thousands of tax records unaccounted for. Not to mention, the other microfilm cartridges containing millions of individual and business tax records for fiscal year 2010 that have also been reported missing. Those of which were supposed to be shipped from Fresno, California to Kansas City, Missouri when the Fresno facility shut down in 2021.