Thomas, after his Jan. 6 guilty plea. (Jahi Chikwendiu/WASHINGTON POST)

Thomas paid the city $20,000 on Wednesday, the D.C. attorney general’s office announced this afternoon. He had previously paid $50,000 last July upon agreeing to the settlement. The new payment still falls short of the $50,000 Thomas had agreed to pay by Dec. 31, 2011; he missed that deadline.

In a statement, Attorney General Irvin B. Nathan’s office said it would continue to pursue all its rights to collect from Thomas — not only the $300,000 principal, but also 4 percent interest on late payments.

“These efforts will include seeking the proceeds of the forfeiture of Mr. Thomas’ vehicles previously seized by the federal government,” according to the statement.

Thomas, who resigned and pleaded guilty to federal felony theft and tax charges in January, is scheduled to be sentenced on May 15.