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Personal FinanceBeginner

How Treasury Bills Work

Discount pricing, maturities and the tax advantage over savings accounts.

By Priya Raman, Real Estate & Alternatives5 min readUpdated 2026-06-19✓ Fact-checked

Treasury bills are short-term US government debt sold at a discount to face value. You buy at, say, $985 and receive $1,000 at maturity; the $15 is your interest.

Why investors use them

  • Backed by the US Treasury
  • Maturities from four to 52 weeks
  • Interest is exempt from state and local income tax

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