Every UK gilt, before and after tax
UK gilt yield and return calculator
Yield to maturity, returns and what you keep after tax, for all 105 UK gilts. Updated every 15 minutes during market hours.
Free for the top 10 gilts. No sign-up needed.
Yields checked against the Debt Management Office's reference prices. How we calculate
Today's top gilts after tax
Prices as of
| Gilt | Matures | Coupon | Price per £100 | Yield before tax | Yield after tax |
|---|---|---|---|---|---|
| UK Treasury 0.625% 2050TG50 | 22 Oct 2050 | 0.625% | 32.50 | 5.92% | 5.42% |
| UK Treasury 0.875% 2046TG46 | 31 Jan 2046 | 0.875% | 42.41 | 5.91% | 5.33% |
| UK Treasury 0.5% 2061TG61 | 22 Oct 2061 | 0.5% | 22.05 | 5.60% | 5.08% |
| UK Treasury 1.25% 2051T51A | 31 Jul 2051 | 1.25% | 39.28 | 5.97% | 5.07% |
| UK Treasury 0.625% 2035TG35 | 31 Jul 2035 | 0.625% | 67.15 | 5.34% | 5.02% |
Yield to maturity if you buy at today's price and hold until the gilt is repaid. After-tax figures deduct income tax from coupons only. Excludes index-linked gilts and dealing costs.
See all 105 gilts, set price alerts and export to Excel in the full calculator
Why after tax matters
Same maturity. Opposite answer once tax comes off.
Coupons are taxed as income; the rise to £100 at repayment isn't. UK Treasury 0.125% 2028 costs 94.57 and repays £100, and that gain is free of Capital Gains Tax. UK Treasury 6% 2028 pays most of its return as a 6% coupon, taxed at 40%.
Before tax
- UK Treasury 6% 20286% coupon4.73%
- UK Treasury 0.125% 20280.125% coupon4.35%
After 40% tax
- UK Treasury 0.125% 20280.125% coupon4.29%
- UK Treasury 6% 20286% coupon2.03%
See the full workings
A gilt pays you in two ways: a coupon twice a year, and £100 for every £100 nominal you hold when it's repaid.
Coupons count as income, so they're taxed at your income tax rate. The difference between the price you pay and the £100 you get back is free of Capital Gains Tax.
So a gilt with a low coupon, bought well below £100, earns most of its return tax-free. A gilt with a high coupon earns most of its return as taxable income. The higher your tax band, the bigger the gap.
| UK Treasury 6% 2028 | UK Treasury 0.125% 2028 | |
|---|---|---|
| Coupon | 6% | 0.125% |
| Matures | 7 Dec 2028 | 31 Jan 2028 |
| Price per £100 | 102.60 | 94.57 |
| Yield before tax | 4.73% | 4.35% |
| Income tax on coupons | £570.00 | £7.88 |
| Yield after tax | 2.03% | 4.29% |
Everything you need to choose a gilt
One table with every UK gilt, worked out the way the Debt Management Office does it, then adjusted for your tax.
Yield after your tax
Rank every gilt by what you keep at 20%, 40% or 45% income tax. Only coupons are taxed; the gain to £100 is free of Capital Gains Tax.
Every gilt, every 15 minutes
Conventional and index-linked gilts, priced every 15 minutes during market hours, with accrued interest and the price you actually pay.
Real yields on index-linked gilts
See the return on top of inflation, plus an estimate at the inflation rate you expect.
Price alerts
Pick a gilt and a target price. We email you when it gets there.
Compare and export
Put up to five gilts side by side, and download any view to CSV or Excel.
Checked against official figures
Our yields match the Debt Management Office's published reference prices. See exactly how we calculate.
Read the methodology
What customers say
“As a higher-rate taxpayer I'd been buying gilts almost by gut feel. Being able to rank every conventional gilt by after-tax yield for my band showed me the low-coupon ones were worth far more to me than the headline numbers suggested. It's now the first thing I check before topping up my ladder.”
Sarah M.Retired teacher, Harrogate “Clear, quick, and does exactly what it says.”
David K.Private investor, Bristol “I set price alerts on three gilts I was watching and got an email the morning one dropped into my target range. The comparison view made it easy to see the trade-off between yield and maturity side by side. I also finally understand how index-linked gilts differ from conventional ones, which no broker platform explained properly. Worth bookmarking.”
James R.Contractor, Leeds “Saved me a lot of spreadsheet time.”
Priya A.Accountant, Manchester “The accrued interest and clean versus dirty price breakdown finally made my broker's quotes make sense. I used to guess, now I know what I'm actually paying.”
Tom H.Engineer, Glasgow “I use it to plan gilt maturities around my ISA and pension withdrawals. Seeing the tax-free capital gain spelled out made the decision straightforward.”
Alison L.Semi-retired, Norwich
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- The top 10 gilts, ranked
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- All 105 gilts, including index-linked, plus corporate bonds
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Questions
What is Gilt Calculator?
A calculator for UK government bonds, known as gilts. For every gilt it works out the yield to maturity, running yield, accrued interest and your return, before and after income tax.
What are gilts?
Bonds issued by the UK government. You lend money, receive a fixed coupon twice a year, and get £100 back for every £100 nominal when the gilt matures. Gains on gilts are free of Capital Gains Tax.
Is this financial advice?
No. Gilt Calculator gives you figures and tools, not personal recommendations. It doesn't know your wider circumstances. If you're unsure whether gilts suit you, speak to a regulated financial adviser.
Where do I buy gilts?
Through most UK investment platforms and stockbrokers, including inside a stocks and shares ISA or SIPP, or through the Debt Management Office's purchase and sale service. Dealing charges vary by provider. We don't sell gilts; we help you choose one.
How often is the data updated?
Every 15 minutes during market hours. The time of the latest prices is shown above the table and in the calculator.
How do price alerts work?
Set a target price for any gilt. When the price goes above, below or reaches your target, we email you and switch the alert off. You can set a new one at any time.
Can I try it before subscribing?
Yes. The calculator is free for the top 10 gilts, with full yield and return figures, and you don't need an account. New subscribers also get a 7-day free trial of full access: you add a card, and you're not charged until the trial ends. Cancel before then and you pay nothing. Full access adds every gilt, your own tax and inflation rates, side-by-side comparison, price alerts and export.
What payment methods do you accept?
All major credit and debit cards, through Stripe. You can cancel from your account settings at any time.
See what every gilt pays you after tax
Free for the top 10 gilts. No sign-up needed.