CGT commercial property rules differ significantly from residential property, often working in investors' favour. While residential property faces 18% and 24% CGT rates, commercial property benefits from lower rates and additional business reliefs that can substantially reduce your tax bill.
The key difference lies in how HMRC treats commercial property as a business asset rather than an investment asset. This classification opens up reliefs like Business Asset Disposal Relief and Rollover Relief that simply don't exist for residential buy-to-let properties.
Commercial vs Residential CGT Rates
The most immediate difference between CGT commercial property and residential property is the tax rates applied to your gains.
Residential Property CGT Rates
- Basic rate taxpayers: 18%
- Higher rate taxpayers: 24%
- These rates apply regardless of how long you've owned the property
Commercial Property CGT Rates
- Basic rate taxpayers: 10%
- Higher rate taxpayers: 20%
- Same rates as general CGT for non-property assets
For a higher rate taxpayer with a £100,000 gain, this means paying £20,000 CGT on commercial property versus £24,000 on residential - a £4,000 saving before considering any additional reliefs.
Business Reliefs Available for Commercial Property
Commercial property qualifies for several business reliefs that can dramatically reduce or even eliminate your CGT liability.
Business Asset Disposal Relief (formerly Entrepreneurs' Relief)
This relief reduces CGT to just 10% on qualifying gains up to a lifetime limit of £1 million. To qualify for capital gains commercial premises relief, you typically need to:
- Own at least 5% of the company (if held through a limited company)
- Be an officer or employee of the company
- Meet the ownership requirements for at least 24 months before disposal
For individually-owned commercial property used in your trade or business, the relief may apply if the property forms part of your business activities.
Rollover Relief
Rollover Relief allows you to defer CGT by reinvesting the proceeds from selling one business asset into another qualifying business asset. This relief is particularly valuable for commercial property investors building portfolios.
Key requirements include:
- Both properties must be used for business purposes
- Reinvestment must occur within one year before to three years after the disposal
- The new asset must cost at least as much as the disposal proceeds
Hold-Over Relief
This relief allows you to transfer business assets (including commercial property) to another person without triggering an immediate CGT charge. The gain is "held over" and becomes the recipient's responsibility when they eventually dispose of the asset.
Annual Exempt Amount Differences
Both commercial and residential property disposals benefit from the same annual CGT exempt amount of £3,000 for the 2026/27 tax year. However, commercial property investors often have more flexibility in timing disposals to maximise use of this allowance across multiple years.
Unlike residential landlords who may need to sell properties to meet Section 24 pressures, commercial property investors can typically plan disposals more strategically around their tax position.
How Commercial Property Ownership Structure Affects CGT
The way you hold commercial property significantly impacts your CGT treatment and available reliefs.
Individual Ownership
Individually-owned commercial property faces the standard 10%/20% CGT rates but may struggle to qualify for Business Asset Disposal Relief unless the property forms part of a wider trading business.
Limited Company Ownership
Companies pay Corporation Tax rather than CGT on property disposals:
- 19% on gains where total company profits don't exceed £250,000
- 25% on gains where total company profits exceed £250,000
However, extracting proceeds from the company may trigger additional personal tax charges through dividends or salary.
Partnership Ownership
Partnerships are transparent for tax purposes, meaning each partner pays CGT on their share of any gain at their personal rates. Business reliefs may be available depending on the partnership's activities.
Depreciation and Capital Allowances Impact
Commercial property benefits from capital allowances that residential property doesn't, but this creates additional CGT complexity.
Capital Allowances Claimed
When you sell commercial property, any capital allowances previously claimed may need to be "clawed back" through balancing charges. This doesn't apply to the building itself but affects:
- Plant and machinery integral to the building
- Fixtures like heating systems, lifts, and air conditioning
- Improvements that qualified for capital allowances
Enhancement Expenditure
Commercial property improvements can typically be offset against CGT gains more easily than residential improvements, particularly where they relate to business use requirements like accessibility modifications or energy efficiency upgrades.
Mixed-Use Properties
Properties with both commercial and residential elements require careful apportionment of gains between the different uses.
For example, a building with shops on the ground floor and flats above would see:
- Commercial portion: 10%/20% CGT rates with potential business reliefs
- Residential portion: 18%/24% CGT rates with limited relief options
The apportionment typically reflects the relative values or floor areas, but professional valuation may be needed for significant gains.
Section 24 Considerations
One major advantage of commercial property is that Section 24 restrictions don't apply. Commercial landlords can still claim full mortgage interest relief against their rental income, making commercial property more attractive from a cash flow perspective.
This tax advantage often influences the decision to dispose of residential properties in favour of commercial investments, particularly for higher rate taxpayers.
Professional Property vs Investment Property
HMRC distinguishes between property held for investment purposes and property forming part of a professional property business. This distinction significantly affects available reliefs.
Professional Property Business
- Active management and development of properties
- Providing significant services to tenants
- Frequent buying and selling of properties
- May qualify for Business Asset Disposal Relief
Investment Property
- Passive rental income generation
- Long-term holding strategy
- Limited tenant services
- Fewer relief options available
Reporting and Payment Deadlines
Commercial property disposals follow the same reporting requirements as residential property:
- 60-day reporting requirement for gains over the annual exempt amount
- Payment due within 60 days of completion
- Full reporting on Self Assessment tax return
However, the availability of business reliefs means commercial property CGT calculations are often more complex, requiring specialist advice to ensure all available reliefs are claimed.
Planning Considerations
Timing Disposals
Commercial property investors have more flexibility in timing disposals to:
- Utilise annual exempt amounts across multiple years
- Manage total income to stay within lower tax bands
- Coordinate with business relief qualifying periods
Reinvestment Strategies
Rollover Relief makes commercial property particularly suitable for portfolio growth strategies where proceeds from sales fund larger acquisitions without triggering immediate tax charges.
Incorporation Timing
For investors considering incorporation, commercial property often transfers more favourably than residential due to available hold-over reliefs and business asset treatment.
Understanding these differences between business property CGT and residential property CGT is crucial for making informed investment decisions. The lower tax rates and additional reliefs available for commercial property can significantly improve your after-tax returns, but the complexity often requires specialist property tax advice to maximise benefits.
The rules around commercial property CGT are intricate, particularly when business reliefs are involved. Many investors benefit from working with a property accountant who understands both the commercial property market and the tax implications of different ownership structures and disposal strategies.