Treasury Bills (T-Bills) are short-term debt instruments issued by the government to raise funds. They are considered one of the safest investments due to their government backing and short maturity periods, typically ranging from a few days to one year.

Key Features of Treasury Bills:
- Short Maturity Periods: Common maturities include 4 weeks, 8 weeks, 13 weeks, 26 weeks, and 52 weeks.
- Zero-Coupon Securities: T-Bills do not pay interest during their term. Instead, they are sold at a discount to their face value, and investors earn profit when they mature at full face value.
- Highly Liquid: Easily bought and sold in the secondary market, making them a popular choice for short-term investors.
How Treasury Bills Work:
- Issuance: The government auctions T-Bills through the central bank (like the Federal Reserve in the U.S.).
- Discount Pricing: For example, a $1,000 T-Bill might be sold for $980. Upon maturity, the investor receives $1,000, earning $20 as interest.
- Risk-Free Nature: Backed by the full faith and credit of the government, making them virtually risk-free.
Benefits of Investing in Treasury Bills:
- Safety and Security: Minimal risk compared to other investments due to government guarantee.
- Short-Term Commitment: Ideal for investors looking for short-term, low-risk investment opportunities.
- Predictable Returns: Returns are known at the time of purchase since they are sold at a discount.
- Liquidity: Can be easily converted to cash without significant price fluctuation.
Potential Drawbacks:
- Lower Returns: Compared to equities or corporate bonds, T-Bills generally offer lower returns.
- Inflation Risk: Returns may not keep pace with inflation, eroding purchasing power over time.
- Tax Implications: Interest earned is subject to federal tax but exempt from state and local taxes in many jurisdictions.
Types of Treasury Bills:
- 91-Day T-Bill: Issued for 3 months.
- 182-Day T-Bill: Issued for 6 months.
- 364-Day T-Bill: Issued for 12 months.
- Cash Management Bills: Issued irregularly with varying short maturities based on the government’s cash needs.
How to Invest in Treasury Bills:
- Through Government Auctions: Investors can purchase directly through treasury departments or portals like TreasuryDirect in the U.S.
- Secondary Market: Buy and sell T-Bills through brokers or financial institutions.
- Mutual Funds and ETFs: Some short-term bond funds invest in T-Bills, providing exposure with added liquidity.
Use Cases for Treasury Bills:
- Parking Cash: Ideal for temporarily holding cash while earning modest returns.
- Portfolio Diversification: Adds a safe, low-risk component to an investment portfolio.
- Emergency Funds: Acts as a secure place to store emergency funds due to its liquidity.
Comparison with Other Treasury Securities:
- Treasury Notes: Medium-term securities with maturities from 2 to 10 years, offering periodic interest payments.
- Treasury Bonds: Long-term securities with maturities exceeding 10 years, paying interest semi-annually.
- T-Bills: Short-term with no periodic interest payments, making them unique within government securities.