Commercial property tax for landlords works differently from residential buy-to-let taxation. While residential landlords grapple with Section 24 restrictions, commercial landlords operate under more favourable rules — but face their own complexities around corporation tax, capital allowances, and business rates.

This guide covers everything commercial property investors need to know about tax rates, reliefs, and allowances in 2026.

Key Differences Between Commercial and Residential Property Tax

Commercial landlord tax benefits from several advantages over residential property investment:

No Section 24 Restrictions

Commercial property remains exempt from Section 24. A commercial landlord with £100k rental income and £40k mortgage interest can deduct the full £40k, leaving £60k taxable profit. The same figures for a residential landlord would result in £80k taxable income (with a 20% tax credit on the £40k interest).

Capital Allowances Available

Commercial properties qualify for capital allowances on fixtures and fittings, plant and machinery. This can include heating and cooling systems, electrical installations, lifts and escalators, fire safety systems, and fitted furniture in serviced offices. The Annual Investment Allowance (AIA) provides 100% tax relief on qualifying expenditure up to £1 million per year.

VAT Considerations

Commercial property can be subject to VAT through the "option to tax" election. While this means charging VAT on rent, it also allows recovery of VAT on expenses and improvements — potentially beneficial for substantial refurbishments.

Taxation of Commercial Property Income

Commercial rental income is treated as property income for tax purposes. For individual landlords, profits are added to other income and taxed at marginal rates:

  • 2026/27 rates: 20% basic rate (£12,571-£50,270), 40% higher rate (£50,271-£125,140), 45% additional rate (£125,140+)
  • From April 2027: Separate property income tax rates apply — 22% basic, 42% higher, 47% additional rate on all property income

Many commercial landlords opt for limited company ownership to benefit from corporation tax rates of 19% (up to £250k profits) or 25% (above £250k).

Allowable Expenses and Capital Allowances

Commercial property expenses follow similar principles to residential, but with broader scope. Fully deductible expenses include:

  • Mortgage interest and finance costs (no Section 24 restriction)
  • Property management fees, insurance premiums, and business rates on empty properties
  • Professional fees (legal, accountancy, surveying)
  • Marketing and letting fees, and repairs and maintenance

Unlike residential property, commercial properties can claim capital allowances on qualifying fixtures and fittings, providing immediate tax relief. A commercial landlord refurbishing offices might claim allowances on air conditioning systems, lighting installations, fitted kitchens in office spaces, and security systems.

Business Rates and Empty Property Relief

Commercial properties are subject to business rates rather than council tax. The landlord typically pays business rates on vacant properties, while tenants pay for occupied premises. Business rates relief is available for empty commercial properties:

  • Industrial properties: 100% relief for first 6 months
  • Other commercial properties: 100% relief for first 3 months
  • Properties with rateable value under £2,900: Ongoing 100% relief while empty

After the relief period, full business rates apply to empty properties.

Ownership Structures: Individual vs. Limited Company

The choice between individual ownership and limited company incorporation is crucial. Companies benefit from lower corporation tax rates on retained profits, more flexible extraction strategies, enhanced capital allowances planning, and easier portfolio expansion.

A commercial property company with £200k annual profit pays 19% corporation tax (£38k), compared to a higher-rate individual paying 40% income tax (£80k). However, extracting profits through dividends incurs additional tax.

Close Company Benefits

Commercial property companies can provide certain tax-efficient benefits to director-shareholders, such as use of company-owned commercial premises, business-related travel expenses, and professional development costs. These benefits must have a genuine business purpose to avoid benefit-in-kind charges.

Taxes on Property Transactions

Capital Gains Tax (CGT)

Commercial property disposals are subject to capital gains tax at the same rates as residential property: 18% for basic rate taxpayers and 24% for higher and additional rate taxpayers. The annual exempt amount is £3,000 for 2026/27.

Commercial property may qualify for Business Asset Disposal Relief (formerly Entrepreneurs' Relief) if it forms part of a trading business, reducing CGT to 10% on gains up to £1 million lifetime limit. Pure property investment rarely qualifies.

Stamp Duty Land Tax (SDLT)

Commercial property stamp duty rates differ from residential SDLT:

  • 0-£150k: 0%
  • £150k-£250k: 2%
  • Over £250k: 5%

The 5% surcharge on additional residential properties does not apply to commercial property purchases.

Value Added Tax (VAT)

Most commercial property rental is exempt from VAT, but landlords can elect to charge VAT through the "option to tax".

Benefits of VAT Election: Recover VAT on purchase costs and improvements, deduct VAT on ongoing expenses. Particularly beneficial for substantial refurbishments.

Drawbacks of VAT Election: Must charge VAT on rent (usually passed to tenant), may make property less attractive to VAT-exempt tenants. Election is typically irrevocable for 20 years.

Record Keeping, Planning, and Common Mistakes

Commercial property requires detailed records for tax compliance, including rental income, all allowable expenses with supporting invoices, capital expenditure, business rates payments, empty property periods, and VAT records if applicable. Making Tax Digital applies to landlords with qualifying income over £50,000 (the MTD-for-ITSA threshold from 6 April 2026, falling to £30,000 from 6 April 2027 and £20,000 from 6 April 2028) from April 2026, requiring quarterly digital reporting.

Investors should consider portfolio diversification and exit planning, which for commercial disposals often involves larger sums. CGT planning can utilise the annual exempt amount, timing of disposals across tax years, and potential Business Asset Disposal Relief claims.

Avoid these frequent and costly errors:

  • Not claiming capital allowances: Missing out on immediate tax relief on qualifying fixtures.
  • Incorrect VAT treatment: Failing to consider option to tax benefits on major refurbishments.
  • Poor record keeping: Inadequate documentation for business rates, empty periods, and expense claims.
  • Ignoring business rates relief: Not claiming available empty property relief.
  • Mixing residential and commercial: Incorrect application of Section 24 rules across property types.

Getting Professional Advice

Commercial property tax involves complex interactions between income tax, corporation tax, VAT, business rates, and capital gains tax. The potential tax savings from proper planning often exceed the cost of professional advice.

A specialist property accountant can help optimise your commercial property tax position through structure planning, allowances maximisation, and compliance management. Consider seeking advice particularly when acquiring your first commercial property, considering incorporation, or planning significant portfolio expansion or disposal.