Investing Basics

Gilts: the government IOU that pension funds love and most private investors ignore

A plain-English guide to UK gilts for private investors: what they are, why prices move, and how to buy them at today's higher yields.

By Ben Walker · May 17, 2026

Pension funds and insurance companies own UK gilts in vast quantities. Private investors mostly do not. The UK government bond market has historically been wholesale territory. With yields at levels not seen since 2008, the gap is worth closing.

Reviewed by Priya Nair, Editorial Director · May 17, 2026, 21:40

In this article

The Short Version

A gilt is a loan you make to the UK government. It pays you a fixed coupon twice a year and returns your £100 face value at maturity.
Gilt prices and gilt yields move in opposite directions. When the price falls, the yield rises.
The UK 10-year gilt yield has been moving around 5% in May 2026. That is the highest level since July 2008.
The 2022 LDI episode was a pension fund collateral crisis, not a default. It explains why gilts can move sharply even when default risk is essentially zero.
You can buy UK gilts inside a stocks and shares ISA on most large UK platforms. Capital gains on individual gilts are exempt from CGT.

What a UK gilt actually is

A gilt is a debt instrument issued by HM Treasury through the UK Debt Management Office. Each one is a contract. You lend the government a stated face value, almost always quoted in units of £100.

The government promises to pay you a fixed rate of interest, called the coupon, twice a year until the bond matures. On the maturity date you get your £100 back.

The name on the contract tells you what you are getting. “Treasury 4¼% 2032” is a gilt with a 4.25% coupon and a maturity date in 2032. On every £100 of face value you hold, you receive £4.25 per year, split into two £2.125 payments. In January 2032 the Treasury pays back the £100 and the bond stops existing.

That is the entire structure of a gilt. There is no equity, no growth story, no quarterly results. The reason gilts are described as risk-free, in the narrow sense, is that the UK government has never defaulted on a sterling-denominated obligation. It can, in extremis, print pounds to honour them.

Whether that is a useful definition of risk-free is a separate question. We come back to it below.

Why price and yield move in opposite directions

This is the part that catches most beginners out. The coupon is fixed for life. The market price of the gilt is not.

Imagine a gilt was issued in 2020 with a 1% coupon at a price of £100. Pay £100, get £1 a year. By 2026 the world has changed.

The Bank of England base rate is 3.75%. Newer gilts are being issued with coupons of 4% or more. Nobody wants to buy a 1% gilt at par when they can buy a 4% gilt at par instead.

The price of the old gilt has to fall until it offers a competitive return. If the price drops to £80, your £1 coupon now represents a 1.25% yield on the price paid. You also make a capital gain of £20 if you hold to maturity. The yield to maturity, which blends income and capital, then rises in line with the market.

Run that mechanic in reverse and you get the famous 2020 problem. When base rates were near zero, older gilts with 4% coupons traded well above par because their fixed income looked generous. Anyone buying them at £130 to lock in that income then watched the price collapse as rates rose.

The coupon kept paying. The market value did not. So when commentators say gilt yields are at their highest since 2008, they are also saying gilt prices have fallen a long way. The two statements are the same statement.

What happened in 2022, and why it still matters

In late September 2022, the then-Chancellor announced a package of unfunded tax cuts. Gilt yields rose sharply within days. That alone was uncomfortable, but the chain reaction that followed is the real lesson.

UK defined-benefit pension funds had spent years using a strategy called Liability Driven Investment, or LDI. Many of them held gilt exposure on a borrowed basis using derivatives, to match their long-dated obligations efficiently. The arrangement worked smoothly while gilt prices were stable.

When prices fell rapidly, the funds were hit with margin calls on the derivative positions. To raise cash, they sold gilts, which pushed prices down further, which triggered more margin calls. The Bank of England had to step in with an emergency bond-buying programme to stop the loop.

No gilt defaulted. No pensioner lost a payment. But the episode revealed that gilt prices, even on supposedly safe paper, can move violently when forced sellers appear in size.

That is a structural feature of bond markets worth carrying forward. It matters most if you are weighing how much of your own savings to put into long-dated gilts.

How a private investor actually buys UK gilts

For most retail investors in 2026, UK gilts are bought through a normal stockbroker. Hargreaves Lansdown, AJ Bell, Interactive Investor and similar platforms all offer dealing in individual gilts. Dealing is usually by telephone or online. The minimum dealing size is typically £1,000 of face value, though it varies by platform.

You can hold gilts inside a stocks and shares ISA, which shelters the income from income tax. There is a useful quirk in the tax treatment to know about. Capital gains on individual gilts are exempt from Capital Gains Tax. The coupon is taxable as savings income outside an ISA, but the price appreciation on a low-coupon gilt bought below par is not.

That tax quirk has made certain low-coupon, short-dated gilts popular with higher-rate taxpayers in recent years. The bulk of the return comes from the pull-to-par capital gain rather than from coupon income.

The alternative route is a gilt fund or gilt ETF. These pool many gilts together and trade like a share. They are simpler to deal, but the tax treatment differs. The CGT exemption on individual gilts does not extend to fund units holding them.

When UK gilts make sense in a portfolio

UK gilts are not a savings account substitute. They are a tradeable security whose market price can fall. Their real return after inflation has often been negative over multi-year periods. What they offer, in exchange, is a known cash flow and a low correlation with equities in most market environments.

That second point is the strategic case. When equities sell off because the economy is weakening, central banks tend to cut interest rates, which pushes UK gilts prices up. The gilt allocation cushions the equity drawdown.

That correlation broke down in 2022. Both equities and gilts fell together because inflation forced rates higher. In most historical periods, the correlation has held.

For a long-term investor in their thirties with a high equity weighting, the case for a meaningful gilt allocation is weak. For someone in their sixties drawing income, current yields make UK gilts a serious consideration. The same is true for anyone looking to lock in a known nominal return over a defined period. Five years ago this calculation looked very different.

A Worked Example

Suppose you buy £10,000 of face value of “Treasury 4% 2030” at a market price of £96, in May 2026. You spend £9,600 on the purchase. Each year, you receive £400 in coupon payments, split into two £200 instalments. That is a running yield of £400 divided by £9,600, or about 4.17%.

You hold the gilt to maturity in 2030. The Treasury repays you £10,000. You have received four years of coupons (£1,600 in total) and a £400 capital gain on redemption.

Outside an ISA, the £1,600 of coupon income would be taxable as savings income. The £400 capital gain on the gilt is exempt from CGT. Inside an ISA, both elements are sheltered.

That is the structure. There is no surprise. The only thing that could change your outcome materially is selling before maturity. In that case you take whatever the market price is on the day.

What This Means For You

If you have never looked at UK gilts before, three practical things matter. Understand that you are buying a contract with a fixed cash flow, not a savings product. Check whether you are paying close to par or well below it, because that drives the mix of coupon and capital gain. Prefer an ISA wrapper if you have allowance available.

If you plan to hold to maturity, the short-dated UK gilts trading below par are efficient for higher-rate taxpayers. The capital-gain element does the heavy lifting and is tax-exempt.

If you are using gilts as a portfolio diversifier rather than a hold-to-maturity income product, accept that the price will move. A gilt fund or gilt ETF is operationally easier than building a ladder of individual bonds yourself.

In Plain English

You lend the government £100. It pays you a fixed amount of interest twice a year and gives you the £100 back at the end. While you are waiting, you can sell the loan to someone else at whatever price the market thinks it is worth.

That price moves around based on what new UK gilts are paying, which is mostly driven by the Bank of England base rate. When base rates rise, the price of older, lower-coupon gilts falls. When base rates fall, the price rises. The interest rate written on the gilt never changes.