Major online brokers like Charles Schwab , Fidelity , and Vanguard offer access to both new auctions and the secondary market. Home — TreasuryDirect
: Create an account, link a U.S. bank account, and place a "non-competitive bid" for upcoming auctions.
: Long-term savers and those buying Savings Bonds (Series I or EE), which are only available through this site.
: The interface is often described as dated, and you cannot sell your bonds on a secondary market here; you must transfer them to a broker if you want to sell before maturity. 2. Buy Through a Broker or Bank