Gilt Ladders Explained: How to Build One in the UK

September 3, 2026 — Off-Piste Wealth Financial Planning Team

What a gilt ladder is, how to build one, and how gilts are taxed in the UK. Worked example with real gilts, plus the tax treatment of low coupon gilts.

A gilt ladder is a portfolio of UK government bonds bought so that they mature on a series of staggered dates, returning a known sum of cash on each one. You choose the maturity dates, the contractual cash flows are fixed at the point you buy, and if you hold each gilt to maturity you are not exposed to what the price does in between.

Gilt ladders went from a niche institutional tool to something ordinary investors ask about for one simple reason. Yields moved. A UK government bond maturing in five years currently offers a gross redemption yield of around 4.7 per cent, and because of the way gilts are taxed the after tax return for a higher rate or additional rate taxpayer can be well ahead of a savings account paying a similar headline rate.

This guide covers what a gilt ladder is, how the mechanics work, a worked example using real gilts at real prices, the tax treatment, who it tends to suit, and where it goes wrong.

Key takeaways

What is a gilt?

A gilt is a bond issued by the UK government. You lend the Treasury money, it pays a fixed rate of interest twice a year, called the coupon, and on the maturity date it repays £100 for every £100 of nominal value you hold.

Two features matter for what follows.

First, gilts trade on the secondary market, so the price moves. A gilt with a 0.25 per cent coupon issued when rates were near zero is worth a lot less than £100 today, because nobody will pay par for a quarter of a per cent of income. That gilt currently trades at around £81. Buy at £81, hold to July 2031, and the government still repays £100.

Second, gilts are generally regarded as carrying very low default risk, and are treated as the benchmark sterling credit. That is not the same as a guarantee, and gilts are not covered by the Financial Services Compensation Scheme. The main risks in a gilt are what the money is worth by the maturity date after inflation, and what happens if you need to sell before then.

What is a gilt ladder?

A gilt ladder is a portfolio of individual gilts with different maturity dates, spaced out so that one matures in each period. Annual spacing is the most common, though shorter and longer intervals are used.

Picture five rungs. Each rung is a separate gilt maturing in a different year. In year one, the first rung matures and hands you cash. You either spend it or you buy a new gilt at the far end of the ladder, which pushes the ladder forward another year. Repeat.

The point of the structure is certainty of dates and amounts. On the day you build it you can write down what the government is contracted to pay you and when, for every rung you have bought. Very few investments let you do that.

If you roll the ladder rather than spend it, note the limit of that certainty. The rungs you already own are fixed. The rungs you have not bought yet will be priced at whatever yields prevail on the day you buy them.

That is different from holding a bond fund. A bond fund has no maturity date. Its price moves with interest rates and there is no point at which the manager hands you back a known sum. A ladder of individual gilts gives you something a conventional fund cannot, which is a defined redemption amount on a defined date. Target maturity bond funds sit somewhere in between, holding a portfolio of bonds that all mature in the same year.

How a gilt ladder works

Three numbers define every rung.

Nominal value. The face value, redeemed at £100 per £100 nominal on the maturity date. This is the number that determines what you get back, not the amount you invested.

Clean price. What the gilt trades at, quoted per £100 nominal, excluding accrued interest. Below £100 is a discount, above £100 is a premium. What you actually pay is the dirty price, which is the clean price plus the interest that has built up since the last coupon date.

Gross redemption yield. The annualised return if you buy at today's price and hold to maturity, combining the coupons and the pull to par. This is the standard number for comparing gilts. It is not a promise. The Debt Management Office notes that the calculation assumes coupons are reinvested at the same yield, which on a low coupon gilt makes very little difference but on a high coupon one makes more.

If you buy the 0.25 per cent Treasury Gilt 2031 at a clean price of £80.90, every £80.90 or so you spend buys £100 of nominal value. On 31 July 2031 the government repays that £100. The £19.10 difference is your capital return. Along the way you collect the coupon, which is 0.25 per cent of the nominal value rather than of what you paid, so about 25 pence a year per £100 nominal, split into two payments. That tiny coupon is the point, for reasons covered below.

Worked example, a £100,000 five year gilt ladder

Here is a ladder built from gilts in issue, priced at 2 September 2026. Twenty thousand pounds goes into each rung.

The £20,000 per rung is the total paid, which includes around £142 of accrued interest across the five purchases on top of the clean prices shown.

Two things to notice before the tax.

The gaps are not evenly spaced. Redemptions land in July 2027, January 2028, October 2029, October 2030 and July 2031. That is a six month gap, then a twenty one month gap, then two roughly annual ones. Gilts mature on the dates the Treasury chose, not on the dates you would like, and in some years there is no low coupon gilt at all. If your ladder has to meet specific bills, choose the maturities that sit just before those dates and accept that the spacing will be uneven.

Equal amounts invested do not produce equal amounts back. The five rungs repay between £20,501 and £24,715, because the further out the maturity the deeper the discount. If you are matching known liabilities, work backwards from the cash you need on each date and buy the nominal value that delivers it, rather than splitting the money evenly.

The tax on this ladder

Capital side. The gilts were bought for £99,858 excluding accrued interest and repay £112,388. That £12,530 capital return is exempt from Capital Gains Tax and does not go on your tax return.

Income side. The ladder pays around £1,688 of gross coupon interest over the five years. Against that you can set the £142 of accrued interest you paid the sellers at purchase, which is an accrued income loss under the Accrued Income Scheme. That leaves roughly £1,546 of taxable savings income, costing an additional rate taxpayer with no Personal Savings Allowance around £696 in tax.

Total return before tax is about £14,076 on £100,000 over five years. After tax, for a 45 per cent taxpayer, roughly £13,380. Every redemption date and amount is contractually fixed from day one.

Dealing costs are not included. Five trades at a typical £5 to £12 per online gilt deal is £25 to £60, plus the bid to offer spread on each purchase.

Prices from giltsyield.com as at 2 September 2026. Yields recalculated on a dirty price, actual over actual basis and cross checked against the quoted gross redemption yields.

Why low coupon gilts matter

Gilts are exempt from Capital Gains Tax for individual investors under section 115 of the Taxation of Chargeable Gains Act 1992. The gain you make buying at £81 and redeeming at £100 is not taxed, and losses on gilts are not allowable either.

Coupon interest is treated differently. It is taxable as savings income at your marginal rate, so 20, 40 or 45 per cent, after the Personal Savings Allowance. In 2026/27 that allowance is £1,000 for basic rate taxpayers, £500 for higher rate taxpayers and nil for additional rate taxpayers.

Put the two rules together and the shape of the answer follows. The more of your return that arrives as capital rather than coupon, the less of it is taxed. A gilt with a tiny coupon trading well below par is the extreme version of that.

Here is what that looks like using the same gilts.

The equivalent gross rate is the interest rate a taxable savings account would have to pay to leave the same amount in your pocket. It is not the gilt's return.

Two things stand out. The 2027 gilt has a higher gross yield than the 2028 gilt and a lower after tax return, purely because its coupon is ten times larger. And the gap between the gross yield and the equivalent gross rate widens the lower the coupon goes.

The logic runs the other way for a basic rate taxpayer with unused Personal Savings Allowance, or for anyone holding gilts inside an ISA or a pension. If the coupon is not being taxed, a low coupon offers no advantage, and higher coupon gilts sometimes trade on slightly better gross yields because demand for the low coupon ones is concentrated among higher rate taxpayers.

Gilt ladder, cash savings or bond fund

A ladder tends to lead on tax efficiency and on certainty of dates. Savings accounts lead on simplicity and on FSCS cover for smaller sums. Funds lead on convenience and, if they hold more than gilts, on issuer diversification. A gilt fund does not diversify away UK government issuer risk, because everything in it is a gilt. Which of the three fits depends on what you need the money to do and when.

Who a gilt ladder tends to suit

People with significant money outside ISAs and pensions. This is the core case. The CGT exemption is only worth something where a gain would otherwise be taxed.

Higher and additional rate taxpayers. The tax advantage scales with your marginal rate, and with how much of your Personal Savings Allowance is already used.

Anyone with a known future liability. School fees, a tax bill, a property purchase, the cost of a planned career break. If you know you need £40,000 in early 2029, a gilt maturing shortly before then takes the market out of the question.

Retirees managing sequencing risk. Holding the first few years of planned withdrawals in a ladder means you are not forced to sell equities into a falling market to fund income. This is one of the cases where a ladder can still earn its place inside a pension, where the tax argument does not apply but the cash flow matching does. Our retirement planning and cash flow planning pages cover how that fits a wider plan.

People holding cash well above the FSCS deposit limit. Deposit protection covers £120,000 per eligible person per authorised banking group, and that limit rose from £85,000 on 1 December 2025. Cash above it is unprotected. A gilt is not FSCS protected either, but it is a direct obligation of the UK government rather than of a bank.

Where a ladder is the wrong tool

If your money is already inside an ISA or a SIPP, the tax argument for gilts specifically falls away, and the choice comes down to whether you want defined maturity dates for cash flow reasons.

If you might need the money at short notice and cannot tolerate a loss, a ladder is the wrong shape. You can sell a gilt on any dealing day, but you sell at the market price, which can be below what you paid.

If the sums are small, fixed dealing costs weigh more heavily. Five trades at £10 is £50 whether the rungs are £2,000 or £50,000. On a £2,000 rung that is 0.5 per cent of the money before you start, plus the spread. Weigh the total dealing cost against the tax you expect to save, rather than against a rule of thumb.

If your objective is long term growth rather than defined outcomes, gilts are not the asset for it.

How to build a gilt ladder, step by step

1. Decide the purpose and the shape. Is this money you will spend as each rung matures, or money you will keep rolling forward? A spending ladder ends. A rolling ladder is maintained by buying a new long rung each time a short rung matures.
2. Set the length and the spacing. Five years with one rung a year is a common starting point. Longer ladders capture more yield when the curve slopes upwards, at the cost of a bigger price move if you have to sell early.
3. Work out the amount for each rung. If you are matching known bills, start from the cash you need on each date and buy the nominal value that produces it. If you are not, splitting evenly is simpler, but expect the redemption amounts to differ.
4. Choose the gilt for each maturity year. Compare the gross redemption yield first, then look at the coupon and work out the after tax figure for your own tax position. For a higher or additional rate taxpayer holding outside a wrapper, a lower coupon usually improves the after tax result for a given gross yield, but check rather than assume.
5. Check the exact maturity dates. Gilts mature on the Treasury's dates. Map the actual dates against the dates you need the money and accept that some years will have gaps.
6. Buy through a platform that deals in individual gilts. Not all do, and some handle them by telephone rather than online. Check the dealing charge and whether the platform reports accrued interest on the contract note, because you will want that figure.
7. Record what you have bought. Nominal value, coupon, maturity date, clean price, accrued interest paid, and the two coupon dates each year. You will need this for your tax return.
8. Diarise each maturity. The money lands in your account automatically. If you have not decided in advance what happens to it, it sits in cash.

Risks and drawbacks

Inflation risk. A ladder locks in a nominal return. If inflation runs above your yield, you lose purchasing power. Index linked gilts uprate both the coupon and the redemption value in line with RPI, so they protect against that, but their yields are quoted in real terms and are not directly comparable with the nominal yields in this article.

Reinvestment risk. When a rung matures the cash has to go somewhere. If yields have fallen, the replacement rung pays less. A ladder protects you from having to sell at a bad time. It does not protect you from a lower rate environment.

Loss on early sale. Held to maturity, the price in between does not affect the outcome. Sold early, it is the outcome. A five year low coupon gilt would typically fall in the region of 4 to 5 per cent in price for a one percentage point rise in yields, and more for longer maturities.

Concentration. Every rung is exposed to a single borrower and a single currency.

No FSCS cover. Gilts are not deposits. Your platform is separately covered by the FSCS for investment business up to £85,000, which applies if the firm fails and there is a shortfall in your assets. It does not cover a fall in the value of your gilts.

Admin. Five holdings, ten coupon payments a year, maturity dates to track and interest to declare.

The Accrued Income Scheme. Buying or selling between coupon dates splits the accrued interest for tax. Buyers get relief for interest that accrued before they bought, sellers are charged on interest that accrued before they sold, and ex dividend transactions work differently again. You are outside the scheme if the total nominal value of your relevant securities stayed at or below £5,000 at all times in both the current and the previous tax year. Above that, it belongs on your return. HMRC helpsheet HS343 sets out the detail.

Common mistakes

Comparing gross yields only. As the table above shows, the highest gross yield can produce the lowest after tax return once a large coupon is taxed at 45 per cent.

Assuming a wrapper always helps. Inside an ISA or SIPP the CGT exemption is redundant, because those gains were not taxable anyway. There can still be a cash flow reason to hold a ladder there.

Ignoring the maturity date. A gilt maturing in December does not pay a bill due in July.

Confusing nominal value with money invested. £20,000 invested at around £81 buys roughly £24,700 of nominal. Getting this the wrong way round produces a ladder that returns far less than planned.

Buying gilt strips by mistake. Gilt strips are separated principal and interest payments. They are taxed under a different regime that charges the annual increase in value as income each year, whether or not you sell. They are not low coupon gilts in another form.

Treating it as a cash substitute. The certainty applies on the maturity date, not before it.

Frequently asked questions

Are gilts free of Capital Gains Tax?

Gains on gilts are exempt from Capital Gains Tax for individual investors, and losses are not allowable. You do not report gilt gains on your tax return. Coupon interest remains taxable as savings income.

How much do I need to build a gilt ladder?

There is no minimum. What matters is the arithmetic, meaning total dealing costs and spreads against the tax you expect to save. Dealing costs are broadly fixed per trade, so the smaller each rung, the larger they loom as a percentage.

What is a low coupon gilt?

A gilt issued when interest rates were very low, so it pays very little annual interest and trades well below its £100 redemption value. Examples in issue include the 0⅛% 2028, the 0⅜% 2030 and the 0¼% 2031. Most of the return arrives as capital rather than as taxable income.

How many rungs should a gilt ladder have?

Five is a common starting point for a general purpose ladder. Retirees bridging to a pension or covering sequencing risk often use three to seven years. More rungs means more maturity dates and more dealing costs.

What happens when a rung matures?

The redemption proceeds arrive in your account on the maturity date at £100 per £100 nominal. You then either spend the money or buy a new gilt at the long end to keep the ladder rolling.

Can I sell a gilt before it matures?

Yes. Gilts are liquid and can be sold on any dealing day at the market price, which may be more or less than you paid. Selling early is what turns a defined outcome into an uncertain one.

Is a gilt ladder better than a savings account?

It depends on your tax rate, your unused Personal Savings Allowance, whether the money is inside a wrapper, and whether you can hold to maturity. On the assumptions set out beside the table above, a higher or additional rate taxpayer holding outside a wrapper would need a notably higher savings rate to match a low coupon gilt after tax. For a basic rate taxpayer with allowance to spare, the gap narrows considerably and the simplicity of a savings account carries more weight.

Are gilts covered by the FSCS?

No. The FSCS protects deposits up to £120,000 per eligible person per authorised banking group, and that is a different thing. A gilt is a direct obligation of the UK government with no upper limit but no compensation scheme behind it. Separately, your platform is covered by the FSCS for investment business up to £85,000, which applies if the firm fails and your assets are missing, not if your gilts fall in value.

Should I hold gilts in an ISA?

You can, and the coupon then escapes income tax, but the capital return was already exempt outside an ISA. Whether that is the best use of your ISA allowance depends on what else you hold and whether those gains would otherwise be taxable. Our ISA advice page covers the wider question.

What is the difference between a gilt ladder and a bond fund?

A ladder holds individual gilts to maturity, so each one repays a known sum on a known date. A conventional bond fund has no maturity date, its price moves continuously, and the manager buys and sells as bonds age. Target maturity bond funds are a middle option, holding bonds that all mature in the same year.

Do gilt ladders work when interest rates are falling?

The rungs you already own are unaffected, because their cash flows were fixed when you bought them. The difficulty arrives at each maturity, when the cash has to be reinvested at whatever yields then apply. Building a longer ladder is the usual response to an expectation of falling rates.

What about index linked gilts?

Index linked gilts uprate the coupon and the redemption value in line with RPI, so they protect purchasing power rather than a nominal sum. The uplift to the principal is not treated as interest for tax. Their yields are quoted in real terms, they are more complex to price, and they are generally a specialist tool rather than a starting point.

Where can I check gilt prices?

The UK Debt Management Office publishes the list of gilts in issue and official prices. Most investment platforms show live prices and gross redemption yields for the gilts they deal in.

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Sources

• HM Revenue and Customs, Helpsheet HS343, Accrued Income Scheme
• Taxation of Chargeable Gains Act 1992, section 115
• UK Debt Management Office, gilt market and retail investor taxation guidance
• Financial Services Compensation Scheme, deposit protection limit increase to £120,000 from 1 December 2025
• Gilt prices and yields, giltsyield.com, 2 September 2026

Important information