UK gilt net yield calculator — your after-tax return

Income tax

0% None

20% Basic

40% Higher

45% Additional

Investment

Unused PSA

Select a gilt — prices from last close

Held in

Corporate bond comparisons — auto-matched to gilt

Two hypothetical corporate bonds — same maturity and coupon as the gilt. QCB is priced at par (no capital gain). Non-QCB matches the gilt's cash price, so it has the same capital gain — but it is taxed at CGT rates.

Qualifying Corp Bond (QCB)

Coupon

—

= gilt gross yield

Price

£100.00

at par · no cap gain

Maturity

—

matched to gilt

✓ Capital gain CGT-exempt · Credit risk

Non-Qualifying Corp Bond

Coupon

—

= gilt coupon

Price

—

= gilt price · has cap gain

Maturity

—

matched to gilt

✗ Capital gain taxed at CGT rate · Credit risk

Bond held in

Select second gilt — to compare directly

Held in

Select a gilt above to see the after-tax comparison

Information only — not financial advice. Gilt prices are indicative from last available close and may be delayed. Verify before transacting. UK tax treatment depends on your circumstances and may change.