Best Treasury Bills (T-Bills) Rates

4 treasury bills (t-bills)s compared. Sorted by APY (highest first). Sample rates shown — verify each rate at the institution before opening an account.

Rate environment · as of 2026-05-21

Current US Treasury bill rates

3.40% – 3.85% APY

Typical range across leading online Treasury bills (4–26 week). Rates change frequently — verify the current rate at the institution before opening an account.

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Where to buy US Treasury bills

Current rates at these sources may fall outside the range shown above — verify at the institution.

TreasuryDirect

· 13-week T-bill
· State/local income tax exempt
· No purchase fee

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TreasuryDirect

· 4-week T-bill
· State/local income tax exempt
· No purchase fee

Visit →

TreasuryDirect

· 26-week T-bill
· State/local income tax exempt
· No purchase fee

Visit →

TreasuryDirect

· 52-week T-bill
· State/local income tax exempt
· No purchase fee

Visit →

These are widely-recognized sources offering access to US Treasury bills. APYCalculator does not earn commissions on links from this site and is not affiliated with any of these institutions.

Want to understand this account type first?

Treasury bills are short-term US government debt sold at a discount. Compare T-bill yields, learn the state-tax exemption that boosts effective yield, and understand TreasuryDirect vs. brokerage purchase options.

→ Read the full Treasury Bills (T-Bills) guide