Digital signatures will be accepted “until more robust technical solutions are deployed,” the IRS statement said while encrypted email will be accepted until Oct. 31, 2025. These technologies were allowed during the Covid-19 pandemic to provide flexibility.

“We heard from tax professionals and taxpayers as well as our employees about how the flexibilities made it easier to comply with tax requirements and communicate with IRS compliance personnel,” Doug O’Donnell, IRS Deputy Commissioner for Services and Enforcement, said in a prepared statement.

A listing of allowable signature options can be found in IRM Exhibit 10.10.1-2 on IRS.gov. Interim Guidance Memorandum PGLD-10-1023-0002 provides for the receipt and transmission of documents through Oct. 31, 2025.