(Our system, TreasuryDirect, allows only noncompetitive bids.) 1  Good News! You can now add or edit bank accounts in TreasuryDirect. 2  Taxpayers: Beware of tax-related scams. 3  Watch our TreasuryDirect demo on how to login to your account.  Watch our demo on how to buy a gift savings bond In TreasuryDirect.