Capital Gains Tax Calculator
Calculate your tax liability when selling an asset for profit. Fully updated with the slashed £3,000 tax-free allowance and the newly reduced 24% property rate.
Legal fees, stamp duty paid on purchase, agent fees, or capital improvements.
Awaiting Details
Enter your purchase price, sale price, and deductible costs to generate your estimated tax bill.
Main Residence Exemption
You do NOT usually pay CGT when you sell your main home (the one you live in) due to Private Residence Relief (PRR). This tool is for second homes, rentals, or investments like shares.
Understanding Capital Gains Tax in the UK
2024 Allowances & Rates Update
The UK Government has significantly tightened the rules around Capital Gains Tax. Historically, sellers enjoyed a generous tax-free allowance. As of the 2024/2025 tax year, the **Annual Exempt Amount has dropped to just £3,000**.
The Current Tax Bands
- Residential Property18% for Basic Rate taxpayers. 24% for Higher and Additional Rate taxpayers (recently dropped from 28%).
- Shares, Crypto & Other Assets10% for Basic Rate taxpayers. 20% for Higher and Additional Rate taxpayers.
How to Reduce Your CGT Bill Legally
Spousal Transfers
You can transfer assets (like a rental property or shares) to your husband, wife, or civil partner completely tax-free. They can then sell the asset to utilize their own £3,000 tax-free allowance and potentially their lower basic tax rate.
Deduct Every Single Cost
Ensure you have deducted the estate agent's commission, solicitor's legal fees, stamp duty land tax paid when buying, and the cost of major capital improvements (e.g., building a conservatory).
Capital Gains Tax FAQs
Tax Disclaimer
This calculator provides an estimate of your Capital Gains Tax liability based on simplified statutory assumptions. It does not account for complex scenarios such as carried-forward capital losses from previous years, Business Asset Disposal Relief (BADR), or partial Private Residence Relief. We strongly advise consulting with a qualified accountant or tax specialist before filing your self-assessment tax return with HMRC. Reporting and paying CGT on UK property must normally be done within 60 days of selling.