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Gilt table › T51A

1 1/4% Treasury Gilt 2051

T51A · ISIN GB00BLH38158 · after-tax yield and tax breakdown · prices as of 26 Oct 2026 close (indicative)
Clean price
£40.63
% of par
Coupon
1.25%
paid semi-annually
Gross yield
5.795%
to maturity, pre-tax
Maturity
31 July 2051
~24.8 years
First issued
28 April 2021
~5.5 years ago
Modified duration
18.09
price sensitivity
Tax-free gain to par
+£5,937
per £10,000 nominal
Amount in issue
£29.5bn
DMO register, at close of business

Price & yield history

How T51A's clean price, gross redemption yield and after-tax net yield have moved over time — up to 5 years, free. Comparing it with other gilts is part of Premium.

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Net yield after tax

Your income tax bandNet yieldSavings equiv*
No tax 5.795% —
Basic 20% 5.315% 6.81%
Higher 40% 4.884% 8.42%
Additional 45% 4.777% 9.01%

*Savings Rate Equivalent = the gross yield a fully-taxable savings account or bond would need to match this gilt's net yield, at that tax rate. Gilt coupons are taxed as income — at the rate in force when each is paid, which rises by 2 percentage points (to 22/42/47%) from 6 April 2027; the capital gain to par is exempt from CGT. Figures don't include your Personal Savings Allowance, so they're conservative. How we calculate this.

What this means

T51A is the UK Treasury gilt "1 1/4% Treasury Gilt 2051", paying a 1.25% annual coupon and redeeming at par (£100) on 31 July 2051 — about 24.8 years away. At its 26 Oct 2026 closing price of £40.63 the gross redemption yield is 5.795%. Because the coupon is low and the price is well below par, most of the return comes as the tax-free pull to par (a £5,937 capital gain per £10,000 nominal, exempt from CGT) rather than as taxable coupon income. That makes it unusually efficient for higher- and additional-rate taxpayers: an additional-rate (45%) payer keeps a net yield of 4.78% — to match that after tax, a fully-taxable savings account or bond would need to pay about 9.01% gross (allowing for the 2027 rise in tax on savings income, as in the table below). That is the tax treatment of gilts in practice: gilt coupons are taxed as income, while the capital gain is free of capital gains tax on any disposal — at redemption or an earlier sale — though interest accrued since the last coupon is taxed as income when you sell.

Compare with other gilts → Open in the gilt table

Nearby maturities

T49 · 4.25% 2049 TG50 · 0.625% 2050 T52 · 3.75% 2052 TG53 · 1.5% 2053

Prices are indicative closing levels for 26 Oct 2026 and may be delayed — see the live gilt table for current figures at your tax rate. Information only, not financial advice.

Information only — not financial advice. Gilt prices are indicative from last available close (26 Oct 2026) and may be delayed. Verify before transacting. UK tax treatment may change.