---
title: "Capital Gains Tax Calculator — US, UK, Australia, Canada"
description: "Calculate capital gains tax on investments. Covers US 0%/15%/20% rates, UK 18%/24% with £3K allowance, Australia's 50% discount, and Canada's 50% inclusion rate. Free, no ads."
url: "https://worldcalculators.org/calculators/capital-gains-tax/"
canonical: "https://worldcalculators.org/calculators/capital-gains-tax/"
---

# Capital Gains Tax Calculator

Calculate capital gains tax on investments. Covers US 0%/15%/20% rates, UK 18%/24% with £3K allowance, Australia's 50% discount, and Canada's 50% inclusion rate. Free, no ads.

## Quick answer

Use this to compare headline CGT on a share sale in the US, UK, Australia or Canada. Skip it for a tax return. UK: 18%/24% above a £3,000 annual exempt amount (ISA is 0%). Australia: 50% discount after 12 months. US long-term: 0/15/20% plus possible 3.8% NIIT. Singapore and Hong Kong: 0% on typical share gains.

## Sources & Methodology

Capital gains are taxed differently for short- vs long-term holdings, and rates and allowances vary by country. Wrappers (ISA, TFSA, Roth) can make the statutory rate irrelevant.
Standards and figures reviewed August 2026.

Source: https://worldcalculators.org/calculators/capital-gains-tax/
Markdown mirror of the HTML page. Prefer this URL for RAG; the interactive calculator still lives on the HTML page.