TreasuryDirect Linked Accounts allow you the flexibility of managing a securities portfolio customized to your needs. You can have several accounts that are “linked” to your main account. Holdings for each Linked account are kept separately from your Primary TreasuryDirect account and from each other. Open a Minor or Custom account, or use the Conversion account to convert your paper securities into electronic form. You access your Linked accounts through your primary TreasuryDirect account.