What Is Capital Gains Tax On Property?

Capital Gains Tax on property is a tax charged on the profit made when selling or disposing of a property that is not your main residence. The current CGT rates on residential property (2024/25) are between 18% to 24%.

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Key Takeaways:

• Paying Capital Gains Tax depends on factors such as the type of property, how it was used, and your personal tax allowance.
• Capital Gains Tax rates on property in the UK vary based on your income tax band and whether the property is residential or non-residential.
• Certain reliefs and exemptions, such as Private Residence Relief and annual tax-free allowances, can reduce or remove the amount of Capital Gains Tax owed.
• The final Capital Gains Tax bill is affected by allowable costs, including purchase expenses, selling fees, and qualifying improvement costs.

Capital Gains Tax on property is a tax you may need to pay when you sell a property for more than you paid for it. Knowing how it works helps you plan your sale properly, reduce the risk of unexpected tax bills, and understand your financial position before you dispose of a property.

Let’s explain how Capital Gains Tax on property works in the UK, who needs to pay it, and the main factors that affect how much tax may be due, so you can make informed decisions with confidence.

What Is Capital Gains Tax on Property?

Capital Gains Tax on property is a tax charged on the profit (gain) you make when you sell or dispose of a property that is not fully exempt.

It commonly applies to:

• Buy-to-let properties
• Second homes
• Inherited properties that are later sold
• Former main residences that were subsequently rented out

CGT is not charged on the full sale price. It is charged only on the gain, broadly the difference between the property’s sale price and its acquisition value, after allowable deductions and reliefs.

For UK residential property, CGT must usually be reported and paid within 60 days of completion via HMRC’s property disposal return system. Missing this deadline can result in penalties and interest.

Current Capital Gains Tax Rates on Residential Property (2024/25)

For disposals completing in the 2024/25 tax year:

• 18% applies to gains falling within the unused portion of your basic income tax band.
• 24% applies to gains above the basic rate threshold.

Your overall income determines how much of the gain falls into each band.

In addition, every individual has an annual exempt amount of £3,000 (2024/25). Gains below this amount are not taxable. For gains above it, the exemption is deducted before the relevant CGT rate is applied.

These figures can change with future Budgets, so current rates should always be verified at the time of sale.

How Is Capital Gains Tax on Property Calculated?

Capital Gains Tax is calculated by working out your total gain and then applying reliefs, allowances, and the appropriate tax rate. The starting point is the sale price, from which you deduct the original purchase price and certain allowable costs.

Allowable costs can include legal fees and stamp duty paid when you bought the property, estate agent and legal fees paid on sale, and the cost of qualifying improvements that added to the property’s value or extended its useful life. Routine maintenance, repairs, and mortgage interest are not normally deductible.

Once allowable costs are deducted, any relevant reliefs are applied. After this, the annual exempt amount is deducted, and the remaining taxable gain is charged at the applicable Capital Gains Tax rate based on your income tax band.

For residential property sales in the UK, Capital Gains Tax must normally be reported to HMRC within 60 days of completion, even if no tax is ultimately payable, making early calculation and planning essential.

Why Capital Gains Tax on Property Isn’t One-Size-Fits-All

Capital Gains Tax on property varies significantly depending on how the property has been used and your personal tax position.

Private Residence Relief

Private Residence Relief (PRR) reduces or eliminates CGT for periods when the property was your only or main residence. In most cases, PRR also covers the final nine months of ownership, even if you were not living in the property at that time.

Where a property has been occupied as a main residence for part of the ownership period and rented out for another part, the gain must be apportioned between qualifying and non-qualifying periods.

Inherited Property

Inherited property is treated differently. The base cost for CGT is usually the probate value at the date of death, not the original price paid by the deceased. CGT is calculated on the difference between that probate value and the eventual sale price.

These distinctions mean two property sales with similar headline profits can produce very different tax outcomes.

5 Considerations When Calculating Capital Gains Tax on Property

Understanding the following points will help you assess your potential liability more accurately.

Types of Capital Gains Tax costs

CGT is charged on profit, not the full sale price. The distinction between allowable improvement costs and non-deductible maintenance costs is critical. Accurate records can materially reduce the taxable gain.

Property details

Whether the property was your main residence, a buy-to-let, a second home, or inherited directly affects the availability of relief and the final tax calculation.

Tax rate vs overall cost

Your income level determines whether your gain is taxed at 18% or 24%. A higher income can push more of the gain into the 24% band, increasing the overall liability.

Property location and use

The rules apply across the UK, but how the property was used, full occupation, partial letting, mixed use, affects how reliefs are apportioned.

Reliefs and add-on considerations

Reliefs such as Private Residence Relief and the £3,000 annual exemption can significantly reduce CGT. The timing of the sale and accurate occupation history are often decisive factors.

Because rates and thresholds can change, always verify the current position before completion.

Choose the Right Advice for Capital Gains Tax on Property

Capital Gains Tax on property is an area where general guidance can only go so far. Estate agents and online calculators can provide estimates, but the correct tax position depends on your individual circumstances, the property’s history, and current HMRC rules.

When speaking with a solicitor or tax adviser, it is important to ask how your gain is calculated, which reliefs may apply, and when the tax must be reported and paid. Clear, up-to-date advice can help you avoid errors, delays, or penalties.

Muve works alongside your accountant or tax adviser to ensure the conveyancing process accurately reflects your Capital Gains Tax position and runs smoothly from completion onwards.

Get a conveyancing quote here.