Business Startup Costs You Can Claim (UK Tax Guide)

Most new business owners don't realize they can claim tax relief on many startup costs — including expenses paid before you officially started trading.

From equipment and software to professional fees and marketing, HMRC allows you to deduct a wide range of pre-trading and startup expenses.

At Brightson Accounting in Wolverhampton, we help new business owners across the West Midlands maximize their tax relief from day one.

This guide explains exactly what you can and can't claim — and how to do it correctly.

What Are Pre-Trading Expenses?

Pre-trading expenses are costs you incur before you officially start trading.

Examples include:

• Market research and business planning
• Website development
• Advertising and marketing
• Professional fees (accountant, solicitor)
• Training and courses
• Equipment and software

HMRC allows you to claim these costs as tax-deductible business expenses — as long as they would have been allowable if incurred after you started trading.

How Far Back Can You Claim?

You can claim pre-trading expenses incurred up to 7 years before you start trading.

Example:

• You attend a business course in 2022 (£500)
• You start trading in 2026
• You can still claim the £500 as a pre-trading expense in your first tax return

💡 Pro Tip:
From what we see with clients in Wolverhampton, most people can claim £2,000–£5,000 in pre-trading expenses — but only if they've kept receipts.

Allowable Startup Costs

1. Equipment and Tools

Laptops, desks, tools, machinery — anything you need to run your business.

Claim via capital allowances if the item costs over £1,000 (or deduct immediately if under).

2. Software and Subscriptions

Accounting software, design tools, domain names, website hosting, email subscriptions.

3. Marketing and Advertising

Website development, business cards, flyers, social media ads, SEO, photography.

4. Professional Fees

Accountant, solicitor, business coach, trademark registration.

5. Training and Courses

Business courses, industry qualifications, software training.

6. Stock and Materials

Raw materials, stock for resale, packaging.

7. Premises Costs

Rent, utilities, business rates (if you have a separate business premises).

If you work from home, you can claim a portion of rent/mortgage interest, utilities, and council tax.

8. Insurance

Professional indemnity, public liability, equipment insurance.

9. Travel and Mileage

Business-related travel (client meetings, site visits, supplier visits).

Claim either:

• Actual costs (fuel, parking, tolls)
• HMRC mileage rate (45p per mile for first 10,000 miles, then 25p)

Commuting between home and your regular place of work is NOT allowable.

10. Bank Charges and Finance Costs

Business account fees, loan interest, credit card interest (for business purchases).

What You CANNOT Claim

HMRC has strict rules on what's not allowable:

• Personal expenses — clothes (unless branded workwear), gym memberships, personal meals
• Entertainment — client dinners, hospitality, gifts over £50
• Fines and penalties — parking fines, late tax penalties
• Personal use of assets — if you use a laptop 50% personally, you can only claim 50% of the cost

Capital Allowances Explained

For expensive items (equipment, vehicles, machinery), you claim capital allowances instead of deducting the full cost immediately.

Annual Investment Allowance (AIA)

You can deduct 100% of the cost in the first year for most equipment — up to £1 million.

This means:

• Buy a £5,000 laptop → claim £5,000 in year 1
• Buy a £20,000 van → claim £20,000 in year 1

Writing Down Allowance (WDA)

For items not covered by AIA (or if you exceed the £1m limit), you can claim:

• 18% per year for most equipment
• 6% per year for integral building features (e.g., heating systems)

How to Claim Startup Costs

For Sole Traders:

Include all allowable expenses in your first Self Assessment tax return.

Under "Business expenses", list:

• Equipment (capital allowances)
• Marketing and advertising
• Professional fees
• Training
• Other pre-trading expenses

For Limited Companies:

Include startup costs in your first set of accounts and Corporation Tax return (CT600).

Your accountant in Wolverhampton will handle this for you.

Record-Keeping Rules

HMRC requires you to keep records for:

• Sole traders: 5 years after the 31 January filing deadline
• Limited companies: 6 years from the end of the accounting period

Keep:

• Receipts (paper or digital)
• Invoices
• Bank statements
• Mileage logs
• Contracts and agreements

Use accounting software (Xero, QuickBooks, FreeAgent) to store and categorize everything automatically.

Not sure what software to use? Speak to an accountant.

Common Mistakes to Avoid

We see the same errors with new business owners in Birmingham and Wolverhampton:

• Not keeping receipts for pre-trading expenses
• Claiming personal expenses as business costs
• Mixing personal and business finances
• Over-claiming on home office costs
• Not claiming capital allowances correctly

Avoid them all: Common Mistakes New Business Owners Make

How Much Can You Save?

Tax relief depends on your business structure:

Sole Trader Example:

• Startup costs: £5,000
• Tax band: 20%
• Tax saving: £1,000

Limited Company Example:

• Startup costs: £10,000
• Corporation Tax: 19%
• Tax saving: £1,900

Every receipt counts — and proper record-keeping can save you hundreds or thousands in tax.