How Capital Gains Tax Applies When You Sell Property
Individuals disposing of residential property, buy-to-let property, business premises, land, or inherited property where Capital Gains Tax (CGT) may apply. When Capital Gains Tax becomes payable on property sales, the applicable rates, the annual exemption, and the 60-day reporting requirement where tax is due. Property disposals can trigger significant tax liabilities. Incorrect assumptions about exemptions, rates, or reporting deadlines can result in underpayment, late filing, interest, and penalties.When Capital Gains Tax Applies
You may need to pay Capital Gains Tax when you sell or dispose of:- Buy-to-let properties
- Business premises
- Land
- Inherited property
- Residential property that does not qualify fully for relief
- Sale proceeds
- Less original purchase cost
- Less allowable acquisition and disposal costs
- Less eligible improvement costs
Annual Exempt Amount
Each individual has an annual Capital Gains Tax exemption.- £6,000 annual exemption
- Reducing to £3,000 from April 2024
60-Day Reporting Requirement
The deadline for paying any CGT due on UK residential property is 60 days from completion. Where CGT is payable, you must:- Submit a UK Property CGT return, and
- Make a payment on account within 60 days.
Interaction With Reliefs
In some cases, reliefs may reduce or eliminate CGT exposure. Examples include:- Private Residence Relief where the property was your main home
- Other available reliefs depending on ownership and usage
Real-World Application
- A landlord selling a buy-to-let property may be liable for CGT on the gain after deducting allowable costs.
- An individual selling inherited property may face CGT if the value has increased since probate.
- A business owner disposing of commercial premises may be taxed at general CGT rates.
- A homeowner selling a property that was partly let may have partial exposure depending on relief eligibility.
Compliance Risks
- Assuming no tax is due without calculating the gain
- Overlooking the reduction in annual exemption
- Applying incorrect CGT rates
- Missing the 60-day reporting deadline
- Underpaying CGT due to incorrect calculations
Before You Sell
Before completing a property disposal, it is advisable to:- Estimate the potential gain
- Review available reliefs
- Confirm the applicable CGT rate
- Prepare for the 60-day reporting obligation (where applicable)
Discuss Your Property Sale With a Tax Adviser
Selling property without fully understanding your Capital Gains Tax exposure can lead to unexpected liabilities and reporting pressure. Relief eligibility, ownership structure, acquisition history, and periods of occupation all influence the final calculation. Seeking early capital gains tax advice London helps you assess your position before contracts are exchanged. Cigma Accounting, advising clients from our Kingston Upon Thames and supporting property owners in Hinchley Wood and Long Ditton, provides structured analysis to ensure your figures are accurate and defensible.
Property sales now carry strict reporting deadlines alongside payment-on-account requirements, making preparation essential. Consulting an experienced tax accountant in London allows you to align your disposal calculations with your wider self-assessment obligations. Cigma Accounting delivers clear, compliance-focused guidance with physical offices across London, helping you complete your transaction confidently while minimising avoidable tax risk.
PLANNING TO SELL PROPERTY AND WANT TO UNDERSTAND THE TAX POSITION?
Property disposals can trigger Capital Gains Tax depending on ownership history, use, and available reliefs. Reviewing your position before exchange can help you calculate potential liabilities accurately and avoid preventable tax costs.
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