Compare · side by side
Green vs Lib Dem on capital gains tax: how they compare
Both would raise capital gains tax on larger gains, but the mechanics differ: the Greens align it with income tax; the Lib Dems set standalone bands with an inflation allowance.
Green Party
- Tax capital gains at income-tax rates: 20%, 40% and 45%.
- The gain stacks on top of your income, so higher earners hit the top rate sooner.
- Keeps the £3,000 tax-free allowance.
- Also proposes National Insurance on investment income.
Liberal Democrats
- Three standalone rates — 20% to £50,000, 40% to £100,000, 45% above — based only on the gain.
- Your income does not push the gain into a higher band.
- Raises the tax-free allowance from £3,000 to £5,000.
- Adds an inflation allowance so purely inflationary gains aren't taxed.
The bottom line
For a high earner with a modest gain, the Green plan can bite harder (because the gain stacks on income); for a large gain, the Lib Dem 45% band and inflation relief shape the outcome. Both calculators show your figure.
Frequently asked questions
Which is higher, Green or Lib Dem capital gains tax?
It depends on your income and the size of the gain. The Green plan stacks the gain on your income, so higher earners reach the top rate sooner; the Lib Dem plan taxes the gain on its own with a bigger allowance and inflation relief. Use both calculators to compare.