U.S. Savings Bonds. U.S. Savings Bonds have gone paperless! The U.S. Department of the Treasury has ended over-the-counter sales of paper savings bonds effective December 31, 2011. You can buy electronic savings bonds safely, 24/7, through TreasuryDirect® at www.treasurydirect.gov. You can still redeem Savings Bonds at any of our branch locations.