0 5/8% Index-linked Treasury Gilt 2042

Bond pricer · ISIN GB00B3MYD345 · report 30 Oct 2026

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How to read this gilt

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Clean price is what the gilt costs before the interest already earned; dirty price adds that accrued interest and is the figure you actually pay. Accrued runs from the last coupon on an actual/actual day count, so it resets on the coupon date.

Gross redemption yield is the yield to maturity on the DMO's semi-annual convention — the number every gilt table quotes. Net figures deduct income tax at each band from the coupons and leave the capital gain alone, because gilts are CGT-exempt; the tax-equivalent column is what a taxable deposit would need to match.

An index-linked gilt's real figures come from the DMO's index ratio, and its nominal figures are that ratio applied to the real ones — so they move with published inflation rather than a forecast.

Prices

Bid price (clean)
£77.46
Offer price (clean)
£77.93
Mid price (clean)
£77.70
Bid price (dirty)
£154.28
Offer price (dirty)
£155.22
Mid price (dirty)
£154.75

Settlement

Settlement date
2026-11-02
Days accrued
164
Accrued interest
£0.279
Index ratio (D10B)
1.98457

Key metrics

Real yield (annual-compounded)
2.31%
Implied RPI growth
3.24%
Net yield at 40% tax (annual-compounded)
2.02%
Running yield
0.80%
Modified duration
14.94
Macaulay duration
15.28
Benchmark yield (continuously compounded annual)
2.33%
Vs fitted curve
−5 bp
Reference yield (convention not recorded)
—
Tenor band
10-20Y

Bond details

Ticker
T42A
ISIN
GB00B3MYD345
Coupon
0.625%
Type
Index-linked
Matures
22 Nov 2042
First issued
2009-07-24
Next ex-dividend
2026-11-12
Next coupon
2026-11-22
Previous coupon
2026-05-22
Category
—
Amount in issue (£m)
12559

Net redemption yield by tax band

Income tax band Net redemption yield (annually compounded) Tax-equivalent yield (annually compounded)
0% 2.31% 2.31%
20% 2.16% 2.70%
22% 2.15% 2.75%
40% 2.02% 3.36%
42% 2.00% 3.45%
45% 1.98% 3.60%
47% 1.97% 3.71%
48% 1.96% 3.77%