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Treasury Bills (T-Bills): What Are They?

By Kristi WaterworthUpdated Sep 8, 2025 at 12:41 PM

Key Points

  • T-bills are short-term, government-backed debt sold at a discount and mature within a year.
  • They are tax-free at state and local levels but subject to federal taxes upon maturity.
  • Ideal for low-risk investors, T-bills add stability to portfolios with volatile assets.

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