eBay Seller Tax Guide

Your Complete Guide to HMRC Allowable Expenses for an eBay Business

Published: 20 September 2025
12 min read

7 Categories of Allowable Expenses:

Cost of Goods Sold
Selling & Marketing
Office & Premises
Staff Costs
Vehicle & Travel
Professional Fees
Capital Allowances

The key to maximising your profit isn't just about sales; it's about legally reducing your tax bill by claiming every single allowable business expense.

Concept of selling products online.entrepreneur or freelance checking orders from customers, woman runs an e-commerce business on websites and social media.

Many eBay sellers, from sole traders using a spare room to established limited companies, miss out on valuable tax deductions simply because they aren't sure what they can claim. This guide will walk you through the expenses HMRC allows you to deduct.

The Golden Rule: 'Wholly and Exclusively'

Before we dive into the list, you must understand HMRC's most important rule. For an expense to be tax-deductible, it must be incurred 'wholly and exclusively' for the purposes of your trade.

This means the entire cost must be for your business. If a cost has a dual purpose (part business, part personal), you can only claim the business portion.

Example: You can claim the business percentage of your mobile phone bill, but you can't claim the cost of a new TV for your living room.

A Crucial Note on Invoices: Sole Trader vs. Limited Company

How you record your purchases is vital. Getting this wrong can lead to disagreements with HMRC.

Limited Company

All purchase invoices and receipts must be in the registered company's name. They cannot be in your personal name.

Sole Trader or Partnership

You have more flexibility. Invoices can be in your personal name or your trading name (e.g., "Dave's Vintage Wares").

The Comprehensive List of Allowable Expenses

We've broken down the common expenses into logical categories to make them easier to track.

1

Costs Directly Related to Your Sales (Cost of Goods Sold)

These are the essential costs of the products you sell.

Purchases

The cost of buying the stock that you sell on eBay. This is your single biggest expense.

Direct Labour

If you pay someone to manufacture, modify, or prepare your items for sale.

Other Direct Costs

Any other costs directly tied to getting your product ready, such as import duties or shipping costs to get the stock to you.

2

Selling and Marketing Costs

The costs associated with the eBay platform and getting your products seen.

Commissions Payable

This includes eBay's final value fees, insertion fees, and any payment processing fees (from eBay Managed Payments or previously PayPal).

Advertising and PR

The cost of promoting your listings, running eBay ad campaigns, or marketing your business on social media.

Postage and Courier Services

The amount you spend on sending items to your customers.

Stationery and Printing

This is a big one for eBay sellers. It includes packaging materials like boxes, jiffy bags, bubble wrap, tape, and the cost of printing postage labels and customer invoices.

3

Office, Premises & Admin Costs

Whether you work from a dedicated unit or a corner of your dining room, these costs count.

Use of Home as Office

If you run your eBay business from home, you can claim a proportion of your household costs. You have two options:

Option 1: Simplified Flat Rate

Use HMRC's flat rate based on hours worked from home per month

Option 2: Actual Costs

Calculate a proportion of mortgage interest/rent, council tax, electricity, and gas

Telephone and Internet

You can claim the business use percentage of your landline, mobile, and internet bills.

Software

The cost of any software essential for your business, such as accounting software (like Xero or QuickBooks), inventory management tools, or photo editing software.

Equipment Expensed

Small items of equipment like a label printer, camera, or office chair can often be claimed as a day-to-day running cost. More expensive items like a computer fall under Capital Allowances (explained in section 7).

4

Staff and Subcontractor Costs

If you have people helping you, their costs are deductible.

Wages and Salaries

Salaries paid to employees

Employer's NI

National Insurance contributions

Pensions & Bonuses

Pension contributions and bonuses

Subcontractor Costs

Fees for freelancers or services

Staff Training and Welfare

Costs for business-relevant courses (e.g., online marketing course) or staff welfare items

5

Vehicle and Travel Expenses

Costs for using your vehicle for business tasks like visiting suppliers or posting parcels.

You can claim these costs in two ways:

Option 1: Simplified Mileage

Claim a flat rate per mile:

45p per mile for the first 10,000 business miles

25p per mile thereafter

Option 2: Actual Costs

Claim business portion of:

• Fuel Expenses

• Motor Insurance

• Repairs and Maintenance

• Road Tax

• Breakdown Cover

Travel and Subsistence

Other travel costs like train tickets to visit a trade show or a wholesaler

Parking

Parking fees incurred while on business trips

6

Professional and Financial Costs

The costs of keeping your business compliant and insured.

Accountants Fees

Cost of hiring an accountant (like Taxwise Accountancy!)

Bank Charges

Monthly fees and transaction charges

Interest

Interest on business loans or credit cards

Insurance Costs

Public liability or stock insurance

Legal & Professional

Legal advice or consultancy

Subscriptions

Trade bodies or trade publications

7

Purchasing Business Assets (Capital Allowances)

What happens when you buy a significant item for your business, like a new computer, a printer, office furniture, or even a motor vehicle for deliveries?

These larger purchases aren't treated as simple day-to-day running costs. Instead, they are classed as 'assets'. You cannot claim the full purchase price as an expense in the year you buy them.

However, HMRC allows you to claim tax relief through a system called Capital Allowances. This reduces your Income Tax or Corporation Tax bill.

Assets that typically qualify for Capital Allowances include:

Computers, laptops, printers, scanners
Office furniture (desks, chairs)
Plant and machinery
Equipment
Motor vehicles used for the business

The rules around Capital Allowances, especially with schemes like the Annual Investment Allowance (AIA), can be complex. Getting expert advice ensures you claim the maximum relief you're entitled to.

What Can't You Claim?

It's just as important to know what HMRC does not consider an allowable expense.

Personal Expenses

Any cost that is not for the business

Entertaining

You cannot claim for entertaining clients, suppliers, or customers

Depreciation and Amortisation

Tax relief is given through the Capital Allowances system, not as a direct expense

Travel to Your Normal Place of Work

Commuting from home to a permanent workplace is not an allowable expense

Stay Organised, Maximise Profit

The key to successfully claiming all your allowable expenses is meticulous record-keeping. Use accounting software, keep all your receipts and invoices, and maintain a separate bank account for your business.

Feeling Overwhelmed? That's What We're Here For.

Contact the friendly team at Taxwise Accountancy today, and let us handle the numbers so you can focus on growing your eBay business.

Expert eBay business accounting • Tax planning • Expense maximisation