No, though there are some similarities:
Both gilts and UK Treasury bills are issued by the UK government, making them low-risk investments
Both are denominated in GBP
Both represent a form of government borrowing, where investors lend money to the government in exchange for future repayment
Both can be used to generate income for investors, although in different forms.
Differences between gilts and UK Treasury bills:
Maturity:
Gilts: Long-term securities with maturities that can range from a few years to several decades (up to 50 years or more).
Treasury bills: Short-term securities with maturities of one year or less (usually 1, 3, 6, or 12 months).
Dividend payments:
Gilts: Pay regular dividends(coupons) every six months, based on a fixed percentage of the nominal value, until maturity.
Treasury bills: Treasury bills do not pay dividends. They are zero coupon bonds.
Price Behavior:
Gilts: Sold at market prices that can fluctuate based on interest rates and other market factors. The return is from both the dividends and the return of the principal at maturity.
Treasury bills: The return comes from the UK government repaying the amount you originally invested, plus a fixed return after a known period.
Tax:
Gilts: Dividend payments are subject to income tax unless held in an ISA or SIPP. Capital gains from selling gilts or from gilts maturing are generally exempt from capital gains tax.
Treasury bills: Income from Treasury bills (the difference between purchase price and maturity value) is subject to income tax, unless held in an ISA or SIPP.
Investment purpose:
Gilts: Often used by investors seeking long-term, stable income with periodic dividend payments, or for those looking to balance long-term portfolios.
Treasury bills: Typically used for short-term investment strategies or as a safe option for cash management.
Ways to buy:
Gilts: Have a well-established secondary market and are actively traded on the London Stock Exchange.
Treasury bills: Issued through weekly competitive tenders held by the UK Debt Management Office (DMO).