Conventional gilt · Medium-dated · T40
UK Treasury 4.25% 2040 Gilt (T40)
- Yield to maturity
- 5.68%
- After 20% tax
- 4.72%
- Clean price per £100
- £86.18
- Matures
- 7 Dec 2040
The UK Treasury 4.25% 2040 is a conventional gilt with a 4.25% coupon, maturing on 7 Dec 2040 — roughly 14.1 years from now. At the latest market price it is a medium-dated (5–15 years) holding currently trading below par (at a discount).
Based on a clean price of about £86.18 per £100 nominal, this gilt offers a running yield of 4.93% and a yield to maturity of 5.68%. 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 worked example below shows returns before and after tax.
Worked example: £10,000 held to maturity
Assuming 20% income tax on coupons (gains on gilts are free of Capital Gains Tax).
| Units of £100 nominal | 114 |
|---|---|
| Amount invested | £9,996.61 |
| Coupon income (less accrued interest paid) | £6,853.16 |
| Capital gain or loss (tax-free) | £1,575.48 |
| Total profit before tax | £8,428.64 |
| Total profit after tax | £7,023.59 |
| Annualised return before tax | 4.42% |
| Annualised return after tax | 3.83% |
Similar gilts
Gilts of the same type maturing around the same time.
| Gilt | Matures | Yield to maturity |
|---|---|---|
| UK Treasury 5.25% 2041 | 31 Jan 2041 | 5.72% |
| UK Treasury 4.375% 2040 | 31 Jan 2040 | 5.68% |
| UK Treasury 1.25% 2041 | 22 Oct 2041 | 5.73% |
| UK Treasury 4.25% 2039 | 7 Sept 2039 | 5.64% |
Questions
What is the yield on the UK Treasury 4.25% 2040 gilt?
Based on the latest market price, the UK Treasury 4.25% 2040 has a yield to maturity of 5.68% and a running (income) yield of 4.93%. Yields move daily with the gilt's market price.
When does the UK Treasury 4.25% 2040 gilt mature?
This gilt matures on 7 Dec 2040, approximately 14.1 years from today. At maturity holders receive the £100 nominal value per unit.
Are returns on the UK Treasury 4.25% 2040 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 UK Treasury 4.25% 2040 return?
A £10,000 investment would buy approximately 114 units and, held to maturity, is projected to return a total profit of about £8,428.64 (gross). See the worked example on this page for the full breakdown.