By Naomi Jagoda - 02/03/16 08:01 PM EST
A number of the Internal Revenue Service's tax processing systems are not operating because of a hardware failure that occurred Wednesday afternoon, the agency said.
The IRS's modernized e-filing system, several taxpayer and practitioner tools and several services on the IRS website are all unavailable, according to a statement from the agency.
"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," the IRS said.
"Taxpayers who have already filed their tax returns do not need to take any additional action."
The IRS said it continues to expect to issue refunds to 90 percent of taxpayers within 21 days.