£300,000 Capital Gain After Tax Wales 2026-27
Shares & Other Assets · £20,000 income · Effective CGT rate: 23.15%
CGT breakdown, Wales 2026-27
| Item | Amount |
|---|---|
| Total gain | £300,000 |
| CGT annual allowance (tax-free) | −£3,000 |
| Taxable gain | £297,000 |
| Basic rate portion (10%) | £30,270 |
| Higher rate portion (20%) | £266,730 |
| CGT due | −£69,464 |
| Gain after CGT | £230,536 |
CGT rate applied
Your gain spans both rate bands: £30,270 at 10% (basic rate) and £266,730 at 20% (higher rate).
2026-27 CGT rates, Shares & Other Assets
How much CGT on a £300,000 gain in Wales with £20,000 income?
A £300,000 capital gain on shares and other assets in Wales with £20,000 salary results in a CGT bill of £69,464 for 2026-27. Capital Gains Tax rates are identical in Wales to the rest of the UK, 10% (basic rate) and 20% (higher rate) for shares and other assets. After deducting the £3,000 annual CGT allowance, your taxable gain is £297,000. You keep £230,536, giving an effective CGT rate of 23.15%.
Your gain spans both rate bands: £30,270 at 10% (basic rate) and £266,730 at 20% (higher rate).
Capital Gains Tax on shares and other assets uses two rates in 2026-27: 10% for gains within the basic rate band and 20% for gains in the higher rate band. Your income of £20,000 is added first, and your capital gain sits on top.
Frequently asked questions
How much CGT do I pay in Wales on a £300,000 gain?
In Wales, CGT is set at UK level, the same rates apply as in England. On a £300,000 capital gain from shares and other assets with £20,000 salary, you pay £69,464 in Capital Gains Tax for 2026-27. The first £3,000 is covered by your annual CGT allowance, leaving a taxable gain of £297,000.
Are CGT rates different in Wales?
No. Capital Gains Tax is a reserved matter and the same rates apply across the entire UK. For 2026-27: residential property gains are taxed at 18% (basic rate) and 24% (higher rate); shares and other assets at the same 18% (basic rate) and 24% (higher rate). Wales's devolved tax powers do not extend to Capital Gains Tax.
How does my £20,000 income affect CGT in Wales?
Your £20,000 salary uses part of the basic rate band. After subtracting your personal allowance (£12,570), your taxable income is £7,430, leaving £30,270 of basic rate band for your capital gain. Your gain spans both rate bands: £30,270 at 10% (basic rate) and £266,730 at 20% (higher rate).
What is the CGT annual allowance for Wales in 2026-27?
The Capital Gains Tax annual allowance for 2026-27 is £3,000 in Wales, the same as across the rest of the UK. This means the first £3,000 of your total capital gains in the tax year is completely tax-free.
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