It is an annualized rateEspecially for 3 months.
I used Fidelity.You can also buy them in the secondary market with known yields. Generally, short term T-bills have a pretty predictable auction rate.
If you open an account at Home — TreasuryDirect links to your bank account, you can buy savings bonds, t-bills, t-notes, t-bonds, tips, etc. free of commission. Also, they will deposit the interest directly into your bank account and the principal when you security matures.
What kind of bonds are you buying?I like Ibonds. My current 6 month rate is 9.62% and my next 6 month rate is 6.89%. You have to hang on to them a year. Between years 1 and 5 you pay a 3 month interest penalty but that still gives you a much better yield than savings accounts, high yield checking, CDs, etc.
OK. I looked them up. The $10K limit is a deal breakerIbonds.They are like EE bonds except the interest rate resets every 6 months. You can only buy them from treasurydirect.gov. You cannot redeem them the first yer. From years 1 through 5 there is a 3 month interest penalty if you redeem.. You are limited to buying a maximum of $10K per year.Once you get past that first year it's a way to hold cash (equivalent) and not get eaten up by inflation.
That is what I bought via FidelityIf you want to invest more than 10k a year, look into TIPS. There is no limit on those.