Ordinarily, the taxpayer has the burden of proving a tax return is accurate. But when the IRS has to produce documents, its record-keeping practices are lacking. The Treasury Inspector General for Tax Administration (TIGTA) released a report on July 13, 2017, that found that the IRS' electronic record retention policies do not comply with certain Federal requirements that records remain retrievable and usable for the time period needed. For example, e-mail messages are not automatically archived for all IRS employees, and the manual methods used to counteract this gap are inadequate when computer hard drives are destroyed or damaged as media storage policies and tools change.
On September 1, 2016, the Treasury Inspector General for Tax Administration (TIGTA) released its fiscal year 2016 statutory review of the Internal Revenue Service's compliance with the Freedom of Information Act (FOIA). The review found that taxpayer rights may have been violated in 11% of the IRS' responses, "because these information requests had some information erroneously withheld." In 16% of cases, the IRS took too long (more than 30 business days) to provide information requestors with a status update.