(CNN) President Donald Trump's name will appear on checks sent to millions of Americans to combat the economic effects of the coronavirus in a last-minute Treasury Department order, a senior administration official confirmed to CNN on Tuesday.

Two senior Treasury officials told The Washington Post, which first reported the decision, that the move will probably set back the delivery date on the first set of paper checks -- potentially slowing a process that could already take up to 20 weeks. The Internal Revenue Service, however, insists that the move will not result in a delay.

"Thanks to hard work and long hours by dedicated IRS employees, these payments are going out on schedule, as planned, without delay, to the nation," Jodie Reynolds, an IRS spokeswoman, told CNN. "The IRS employees are delivering these payments in record time compared to previous stimulus efforts."

CNN has reached out to the White House for comment.

Citing senior agency officials, the Post reported that the words "President Donald J. Trump" would appear in the memo line on the left side of the checks -- marking the first time a president's written name is featured on an IRS check.