One of the biggest advantages of operating through a limited company in the UK is the ability to claim allowable business expenses.
Claiming legitimate business expenses correctly helps reduce taxable profits and lower Corporation Tax legally.
However, many business owners either:
Understanding what your company can claim is important for improving tax efficiency and remaining compliant with HMRC rules.
In this guide, we explain the main expenses a limited company can claim in the UK and the rules businesses should understand in 2026.
Allowable expenses are costs incurred wholly and exclusively for business purposes.
These expenses are deducted from company income before Corporation Tax is calculated.
The general HMRC principle is simple:
If the expense is necessary for running the business and is not mainly personal in nature, it may qualify for tax relief.
Most day-to-day business running costs are allowable expenses.
Common examples include:
Software and digital systems have become major expense categories for modern businesses.
Many companies now claim cloud software costs, CRM systems, bookkeeping software, and productivity tools as allowable business expenses.
Employee-related costs are generally deductible for Corporation Tax purposes.
This includes:
Many directors use a combination of salary and dividends for tax planning purposes.
Limited companies can normally claim business-related travel expenses.
Allowable travel costs may include:
Travel must be for genuine business purposes.
Ordinary commuting between home and a permanent workplace is usually not allowable.
Companies can also reimburse directors and employees using HMRC-approved mileage rates.
Many directors work from home either full-time or partially.
If part of your home is used for business purposes, the company may claim a proportion of certain household costs.
This can include:
HMRC also allows simplified flat-rate home office claims in some situations.
For many directors, a flat-rate home office allowance remains available without detailed calculations.
Businesses often purchase equipment and long-term assets necessary for operations.
Examples include:
These items may qualify for capital allowances rather than standard expense deductions.
Many businesses can claim 100% tax relief through Annual Investment Allowance or Full Expensing rules on qualifying assets.
Professional services used for business operations are generally allowable.
This can include:
Professional subscriptions relevant to the trade may also qualify.
Marketing expenses are normally allowable when promoting the business.
This includes:
Digital marketing has become a major expense area for many businesses in 2026.
Training costs related to improving existing business skills are often allowable.
Examples include:
However, training that prepares someone for an entirely new trade may not qualify.
Employer pension contributions are usually treated as allowable business expenses.
This remains one of the most tax-efficient ways for directors to extract value from a company while reducing Corporation Tax.
Pension planning can help:
Many business insurance policies are allowable expenses.
Examples include:
Some expenses are specifically disallowed by HMRC.
Common non-allowable expenses include:
HMRC applies the “wholly and exclusively” rule when reviewing business expenses.
If an expense has both business and personal use, only the business proportion may be claimable in some situations.
Keeping accurate records is essential.
Businesses should maintain:
Digital bookkeeping systems make expense tracking easier and reduce compliance risks.
Good record keeping also helps businesses:
Tax compliance and digital reporting requirements continue to increase for UK businesses.
Businesses using proper accounting systems and proactive tax planning are generally better positioned to:
Recent updates to capital allowances and investment reliefs also create new opportunities for businesses investing in equipment and technology.
At SV&Co Accountancy, we help businesses:
We provide practical accounting and tax advice tailored to your business.
If you need help with bookkeeping, Corporation Tax, payroll, VAT, or business accounting, contact SV&Co Accountancy today.
Phone: 07957946562
Email: info.svco@gmail.com
Website: https://www.svco.co.uk