Are You Claiming All Allowable Business Expenses?

Are You Claiming All Your Allowable Business Expenses?

If you’re self-employed, making sure you’re claiming all allowable business expenses is one of the simplest ways to reduce your tax bill. Yet many business owners miss out on valuable reliefs, either by overlooking eligible costs or being unsure of what can and cannot be claimed.

At Charlton Baker, we regularly support clients in identifying expenses correctly, helping them stay compliant while ensuring they don’t pay more tax than necessary.

What Counts as an Allowable Expense?

In simple terms, allowable expenses are costs incurred 'wholly and exclusively' for the purpose of running your business. These expenses are deducted from your income to calculate your taxable profit, meaning the more allowable costs you capture, the lower your tax bill may be.

Common examples include:

• Office costs: stationery, printing, software subscriptions, phone bills
• Travel expenses: fuel, train fares, parking and accommodation for business trips
• Professional costs: insurance, accountancy fees, legal advice
• Marketing and advertising: websites, social media campaigns, branded materials
• Staff costs: salaries, pensions, subcontractor payments
• Stock and materials: items purchased to sell or use in delivering services

It’s also worth noting that training costs can be claimed where they help you maintain or improve skills relevant to your current business.

Mixed-Use Expenses: Getting the Split Right

Many expenses have both business and personal use. In these cases, only the business proportion is allowable.

For example:

• A mobile phone used 70% for business can have 70% of the bill claimed
• A car used partly for work journeys must be apportioned correctly

Accurate record keeping is key here and something that can save time and stress at year end.

Working from Home? Don’t Miss Out

If you operate your business from home, you may be entitled to claim a portion of household costs, such as:

• Heating and electricity
• Broadband and phone
• Rent or mortgage interest

HMRC also offers simplified flat-rate allowances, which can make things easier if you prefer not to calculate exact costs. Choosing the most beneficial method often depends on your circumstances.

Capital Allowances and Larger Purchases

If you invest in equipment, machinery or vehicles, you may qualify for capital allowances, allowing you to claim tax relief over time or, in some cases, in full upfront.

Understanding which items qualify - and how best to claim them - can make a significant difference to your tax position.

The £1,000 Trading Allowance - Choose Carefully

If you use the £1,000 trading allowance, you cannot also claim individual business expenses. While this may simplify things, it’s not always the most tax-efficient option, particularly if your actual costs exceed the allowance.

A quick comparison can help you decide which route is right for you.

Keep Records, Stay in Control

Maintaining clear and accurate records throughout the year will:

• Ensure you claim everything you’re entitled to
• Make completing your tax return simpler
• Provide confidence in the event of an HMRC enquiry

How Charlton Baker Can Help

Understanding allowable expenses is just one part of managing your business finances effectively. Our accounting and tax advisory services go further, helping you:

• Identify all legitimate tax reliefs
• Keep compliant with HMRC rules
• Plan ahead to improve tax efficiency

If you’re unsure whether you’re claiming everything you could, or want peace of mind that your tax affairs are optimised, speak to our expert team today on 01380 723692 / email.