The IRS issued the following statement the evening of the February 3:
The IRS experienced a hardware failure this afternoon affecting a number of tax processing systems, which are currently unavailable. A number of our systems are not currently operating, including our modernized e-file system and a number of other related systems. The IRS is currently in the process of making repairs and working to restore normal operations as soon as possible. Some of the systems will remain unavailable until tomorrow. The IRS remains in close contact with e-file software transmitters and the tax community during this period. A number of taxpayer and tax practitioner tools will be unavailable during this period. IRS.gov remains available, although a number of the services on the site are not, including Where’s My Refund. Taxpayers can continue to prepare and file their tax returns as they normally would. Taxpayers can continue to send their tax returns to their e-file provider; these companies will hold the tax returns until the IRS resumes accepting electronic tax returns. Taxpayers who have already filed their tax returns do not need to take any additional action. The IRS is still assessing the scope of the outage. At this time, the IRS does not anticipate major refund disruptions; we continue to expect that 9 out of 10 taxpayers will receive their refunds within 21 days.