What are UK government gilts?
Gilts are bonds issued by HM Treasury through the Debt Management Office (DMO). When you buy a gilt, you lend money to the UK government. In return, you receive regular coupon payments (semi-annual) and your capital back at maturity. The name “gilt-edged” reflects their historically strong credit quality — they are among the safest investments available. See our gilts guide for a full breakdown.
How do gilt yields affect mortgage rates?
Fixed-rate mortgages are priced off swap rates, which track gilt yields of similar maturities. When 2-year gilt yields rise, 2-year fixed mortgage rates tend to follow within weeks. This is why mortgage rates can rise even when the Bank of England holds its base rate — gilt markets are forward-looking and react to inflation expectations, fiscal policy, and global bond movements. Our gilt yields guide explains the mechanism in detail.
Can I buy gilts in an ISA or SIPP?
Yes. Most investment platforms let you hold individual gilts or gilt funds inside a Stocks & Shares ISA or SIPP. This shelters the coupon income from income tax (and the capital gain is already CGT-exempt for gilts). Holding gilts in an ISA is particularly useful for higher-rate taxpayers who would otherwise pay 40% on coupon income.
Are gilts safe?
Gilts carry minimal credit risk — the UK government has never defaulted on its debt. However, they carry interest rate risk: if you sell before maturity, you may get back more or less than you paid. Long-dated gilts are more sensitive to yield changes than short-dated ones. If you hold to maturity, you get your face value back regardless of interim price movements.
What are index-linked gilts?
Index-linked gilts adjust both their coupons and principal in line with the Retail Prices Index (RPI). If inflation rises 3%, your payments rise 3% too. They protect your purchasing power but typically offer a lower starting yield than conventional gilts. The trade-off: guaranteed real return vs higher nominal return with inflation risk. Our index-linked gilts guide covers how they work and when they make sense.