Also, individuals can only buy $10,000 of I bonds per year, plus your tax return up to another $10,000.
>Is there a maximum amount I can buy?
> In a calendar year, one Social Security Number or one Employer Identification Number may buy:
> * up to $10,000 in electronic I bonds, and
> * up to $5,000 in paper I bonds (with your tax refund)
> For individual accounts, the limits apply to the Social Security Number of the first-named in the registration.
$5K, not 10K.