You can buy UK government bonds, known as gilts, in one of two ways: directly from the UK Debt Management Office through its Purchase and Sale Service, or on the secondary market through a stockbroker or investment platform.1Debt Management Office. About Gilts The direct route is open only to UK residents and uses a paper-based application process. The broker route is faster, works for any gilt listed on the London Stock Exchange, and is the only option if you live outside the UK. Which one fits you depends on where you live, how much you want to invest, and whether you might want to sell before the bond matures.
Which Route Suits You
For most people, a broker or investment platform is the practical choice. You get real-time pricing, instant execution during market hours, and the ability to sell at any time. You can also hold the gilts inside a stocks and shares ISA or a self-invested personal pension (SIPP), which matters for the tax treatment.
The DMO’s Purchase and Sale Service suits UK residents who want their gilts registered directly in their own name rather than held in a broker’s nominee account, and who are comfortable with a slower, form-based process. There is no price-setting and no ability to react to intraday movements.
Choosing the Type of Gilt
Before placing an order you need to know the specific gilt you want, because every order asks for it by name. There are three types in issue.
Conventional gilts make up roughly three-quarters of the market. They pay a fixed coupon twice a year and return the face value at maturity. A gilt labelled “4½% Treasury Gilt 2028” pays 4.5% of face value each year, split into two payments, until 2028.1Debt Management Office. About Gilts
Index-linked gilts adjust both the coupon and the principal in line with the UK Retail Prices Index, using a three-month indexation lag for issues from April 2005 onward.2UK DMO. Index-linked Gilts The stated coupon looks low, but payments grow if inflation runs hot.
Green gilts are structurally identical to conventional gilts, with proceeds earmarked for environmental and climate-related spending. The risk and return profile matches an equivalent-maturity conventional gilt.
Buying Direct Through the Purchase and Sale Service
The DMO runs its Purchase and Sale Service through Computershare Investor Services, which handles the paperwork and execution.3UK DMO. Purchase and Sale Service The service is restricted to UK residents.
Join the Approved Group First
You cannot place an order until you have been admitted to the DMO’s Approved Group. That means completing a separate application pack from the Computershare website covering your personal details, UK bank account (sort code, account number, branch address), and the income and savings information required under money laundering rules.4Computershare. Application to Purchase Form Once approved, you can submit purchase orders for any gilt available through the service.
Placing the Order
On the purchase form you give the full title of the gilt and the total amount you want to invest. Commission is deducted from your investment before the trade, so the face value of gilts you end up holding will be slightly less than the amount you sent. You cannot set a price, a maximum, or a minimum. Computershare executes at the market price available when they process your order.
How to Pay
For investments of £1,000 or less you can pay by sterling cheque drawn on a UK bank account, made payable to Computershare Investor Services PLC and crossed “A/C Payee.” For anything over £1,000, payment must be electronic.4Computershare. Application to Purchase Form The completed form and payment go to Computershare’s Bristol office. If payment doesn’t arrive with the application, Computershare may reject it.3UK DMO. Purchase and Sale Service
Confirmation and Certificates
After processing, you get confirmation and can choose between electronic registration or a physical gilt certificate. A certificate sent by Royal Mail Special Delivery costs an extra £20.50 administration fee. Keep any certificate safe. It is your legal proof of ownership and you will need it for any future sale or transfer.
Buying Through a Broker or Investment Platform
Open an account with a stockbroker or platform that gives access to bonds listed on the London Stock Exchange. Many UK platforms offer this through a general investment account, a stocks and shares ISA, or a SIPP. Once funded, search for the gilt by name or coupon rate, enter either the cash amount or the nominal value you want to buy, and confirm. The platform shows the current market price and any dealing fees before you commit.
Fees vary. Some brokers charge a flat dealing fee per trade, others a percentage of the transaction. Interactive Brokers, for example, charges a tiered commission of 0.1% on face value for UK gilt trades. Check the fee schedule before trading, because on a low-yielding short-dated gilt a high dealing fee can swallow a meaningful share of your return.
Gilts bought through the DMO service sit directly in your name on the gilt register. Gilts bought through a broker are usually held in a nominee account in the broker’s name, with you as the beneficial owner. The economic interest is identical, but under the nominee structure the broker handles coupon payments and redemptions for you.
Settlement Timing
Trades do not complete instantly. As of 2026 UK securities including gilts settle on a T+2 basis, meaning legal transfer and payment happen two business days after the trade date.5Financial Conduct Authority (FCA). About T+1 Settlement The gilt will show in your portfolio immediately, but settlement continues in the background. The UK is moving to T+1 settlement from 11 October 2027.6GOV.UK. Policy Note – Mandating T+1 Settlement in the UK The window matters most if you are buying close to a coupon date and want to be the registered holder in time to receive the payment.
How Gilts Are Taxed
Capital gains on gilts are fully exempt from capital gains tax. Section 115 of the Taxation of Chargeable Gains Act 1992 treats gains on disposal of gilt-edged securities as not chargeable.7Legislation.gov.uk. The Taxation of Chargeable Gains (Gilt-edged Securities) Order 2025 Buy a gilt below face value, hold to maturity, and the uplift to par is tax-free. The same applies if you sell at a profit on the secondary market.
Coupon payments are different. Interest has been paid gross since 2016, with no tax deducted at source. It counts as savings income, reported through self-assessment. Whether you owe anything depends on the personal savings allowance: £1,000 for basic-rate taxpayers, £500 for higher-rate taxpayers, and nothing for additional-rate taxpayers, who pay 45% on every pound.
Shelter the Interest in an ISA or SIPP
You can hold gilts inside a stocks and shares ISA or a SIPP. Gilts are explicitly listed as qualifying investments for stocks and shares ISAs.8GOV.UK. Stocks and Shares ISA Investments for ISA Managers Inside either wrapper, coupon payments arrive free of income tax. Since gains are already exempt outside the wrapper, the real benefit is sheltering the interest. A higher-rate taxpayer holding £100,000 of gilts yielding 4% would receive £4,000 a year, of which £3,500 would be taxable outside an ISA and nothing inside one.
Buying UK Gilts From the US
Americans can buy gilts, but the DMO’s direct service is closed to non-residents, so you have to use a broker.
Finding a Broker
Interactive Brokers is the most accessible US-regulated platform for trading gilts directly. Through its Bond Marketplace, clients can trade UK government bonds alongside other global securities from a single account.9Interactive Brokers LLC. Interactive Brokers Introduces Enhancements to Global Bond Offering Most other major US brokerages do not offer direct access to individual UK gilts, although some give exposure through gilt-focused ETFs or mutual funds that carry their own management fees.
Currency Risk
Gilts are denominated in sterling. If the pound weakens against the dollar between purchase and payment, your returns shrink in dollar terms. A gilt yielding 4% in sterling can produce a negative dollar return in a year when the pound drops 5%. A strengthening pound works the other way. Brokers also charge a currency conversion spread each time you move between dollars and pounds, and that cost repeats every time a coupon is paid and converted.
US Tax and Reporting
The UK does not withhold tax on gilt interest, and the US-UK tax treaty preserves that treatment for American investors. You still owe US federal income tax on the coupons as ordinary interest income, and you need to report any currency gain or loss when converting coupon payments or sale proceeds back to dollars.
Holding gilts through a foreign brokerage or a platform that custodies assets outside the US can trigger extra filings. If the aggregate value of your foreign financial accounts tops $10,000 at any point in the year, you must file FinCEN Form 114, the Report of Foreign Bank and Financial Accounts (FBAR).10Internal Revenue Service. Report of Foreign Bank and Financial Accounts (FBAR) If your specified foreign financial assets exceed $50,000 on the last day of the tax year, or $75,000 at any point, you also file Form 8938 with your return. Thresholds are higher if you are married filing jointly or living abroad.11Internal Revenue Service. Summary of FATCA Reporting for U.S Taxpayers
Penalties are steep. Failure to file Form 8938 carries a $10,000 base penalty, with up to $50,000 more if you still don’t file after IRS notification, plus a 40% penalty on any tax understatement tied to undisclosed foreign assets.11Internal Revenue Service. Summary of FATCA Reporting for U.S Taxpayers FBAR penalties are adjusted annually for inflation and can be substantial even for non-willful violations.10Internal Revenue Service. Report of Foreign Bank and Financial Accounts (FBAR) If you hold gilts through a US-regulated broker that custodies assets domestically, the foreign account reporting rules may not apply. Confirm the custodial arrangement with your broker before you assume you are exempt.