: This is the only official government site for buying Savings Bonds (Series I and EE) directly. It also allows you to buy marketable securities like Treasury Bills, Notes, and Bonds at auction with no added fees.
You can buy U.S. government bonds online through the official TreasuryDirect website or through a private brokerage account. Primary Purchase Methods buy us bonds online
: You cannot buy Savings Bonds (I or EE bonds) through a private broker; they must be purchased via TreasuryDirect. How to Buy via TreasuryDirect : This is the only official government site