How government bonds work

A government bond is a loan to a state, issued as a tradable security. UK gilts are issued by HM Treasury; US Treasury securities include bills, notes and bonds. With a conventional fixed-rate bond, the issuer pays interest on the face value and repays the principal at maturity. For example, a £1,000 face-value gilt with a 4% annual coupon pays £40 a year, even if you pay more or less than £1,000 to buy it. The coupon is not the same as the yield: the return also depends on the purchase price, time to maturity and repayment terms. Treasury bills normally pay no coupon and are bought at a discount. Check the individual security’s terms, currency and maturity before comparing returns. The UK Debt Management Office and US Treasury explain the instruments they issue.

Government securities can lose market value. When market interest rates rise, existing fixed-rate bond prices generally fall; longer maturities are usually more sensitive. Selling before maturity can therefore produce a loss. Holding to maturity does not remove inflation, currency or issuer default risk, and funds holding bonds do not necessarily have a single repayment date. Inflation-linked securities have different payment rules. SNDI currently discloses no government bond holdings and no specific planned bond purchase. Its sovereign debt coverage is research, distinct from an ownership record. Buying government debt provides an investment exposure; it does not confer public office, an official mandate or a government affiliation. This explanation is general information, not a recommendation or personalised advice.