Potentially up to several hundred thousand last-minute tax filers were affected by company server problems on Tuesday evening, and they or their accountants may have been unable to electronically file returns, the IRS said.

Intuit confirmed Wednesday that those problems had been resolved, and it was successfully accepting e-file returns on Wednesday.

The company said affected taxpayers and tax professionals include those using "TurboTax," "ProSeries,""Lacerte"and Intuit's Free File offering,"TurboTax Freedom.”

Intuit product users who were unable to file their returns through the company's servers Tuesday should e-file as soon as possible, the agency said. The IRS will not apply late filing penalties to taxpayers who were affected by this problem.

Overall, the IRS has seen a strong year for e-filing. Taxpayers filed more than 75 million returns electronically through April 17, shattering last year's record of 73.2 million.