GlaxoSmithKline Capital Plc 5.250% 2042 Gilt
Live yield & returns · Last updated 2026-05-31T17:09:53.966977+00:00 · Capital at risk
5.79%
5.56%
£94.40
10 April 2042
The GlaxoSmithKline Capital Plc 5.250% 2042 is a corporate bond with a 5.250% coupon, maturing on 10 Apr 2042 — roughly 15.9 years from now. At the latest market price it is a long-dated (15+ years) holding currently trading below par (at a discount).
Based on a clean price of about £94.40 per £100 nominal, this gilt offers a running yield of 5.56% and a yield to maturity of 5.79%. The running yield reflects the income return from coupons alone, while the yield to maturity also accounts for the capital gain if you hold to redemption.
Because capital gains on gilts are exempt from UK Capital Gains Tax, a gilt priced below par can be particularly tax-efficient: the pull-to-par capital gain is tax-free, and only the coupon income is taxable. The calculator below shows both gross and net (after-tax) returns.
Worked example: a £10,000.00 investment
Held to maturity, assuming 20% tax on coupon income (capital gains on gilts are tax-free):
| Units purchased | 105 |
| Amount invested | £9,912.00 |
| Total coupon income | £8,747.87 |
| Capital gain / loss | £546.65 |
| Total profit (gross) | £9,294.52 |
| Total profit (after tax) | £7,544.95 |
| Annualised return (gross) | 5.91% |
| Annualised return (net) | 4.80% |
Estimates for illustration only. Not financial advice.
Similar gilts
| Gilt | YTM | Maturity |
|---|---|---|
| Catalyst Healthcare (Manchester) Finance 2.411% 2040 | 0.10% | 30 September 2040 |
| Lloyds 6.500% 2040 | 5.87% | 17 September 2040 |
| B.A.T. International Finance plc 5.750% 2040 | 6.21% | 5 July 2040 |
| HSBC Holdings Plc 6.000% 2040 | 6.14% | 29 March 2040 |
Frequently asked questions
What is the yield on the GlaxoSmithKline Capital Plc 5.250% 2042 gilt?
Based on the latest market price, the GlaxoSmithKline Capital Plc 5.250% 2042 has a yield to maturity of 5.79% and a running (income) yield of 5.56%. Yields move daily with the gilt's market price.
When does the GlaxoSmithKline Capital Plc 5.250% 2042 gilt mature?
This gilt matures on 10 Apr 2042, approximately 15.9 years from today. At maturity holders receive the £100 nominal value per unit.
Are returns on the GlaxoSmithKline Capital Plc 5.250% 2042 taxed?
Capital gains on UK gilts are exempt from Capital Gains Tax. Coupon income is taxable as income, though it can be sheltered within an ISA or SIPP. This page shows both gross and after-tax figures.
How much would a £10,000 investment in the GlaxoSmithKline Capital Plc 5.250% 2042 return?
A £10,000 investment would buy approximately 105 units and, held to maturity, is projected to return a total profit of about £9,294.52 (gross). See the worked example on this page for the full breakdown.