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Buying an online business
Buying an online business means taking over an existing website, shop or digital product, along with the assets and work needed to run it. It can be a substantial purchase, so check the business carefully and get suitable legal and financial advice before agreeing to buy.
Open the interactive guide (checklist, video, read-aloud) →In plain words
- You buy a website or online shop that already exists.
- Check its sales, costs, customers and records.
- Ask what comes with the sale.
- Get expert help before you agree or pay.
- Income can change, and you could lose money.
Who it suits
It may suit adults with funds to invest, time to investigate the business and skills or support to keep it running. It is less suitable if you need quick, dependable income or cannot afford to lose your investment.
People pay for the products, services or digital content an existing business provides. A business may already have customers and systems, but you need to verify that the sales and assets are real and transferable.
Step by step
- Set your budget, goals and limits. Choose the type of business you want and decide how much time you can give it. Write down your budget, skills, support needs and non-negotiables, including how involved you want to be. About 1-2 hours.
- Compare listings and question the seller. Compare similar businesses and ask why each one is for sale. Look for evidence of demand, repeat sales and realistic ways to grow, rather than relying on the seller’s description. Flippa About 1-3 days.
- Check the business’s money records. Request financial reports, payment-processor statements and revenue analytics. Where available, compare these with bank and platform records; check refunds, chargebacks, advertising spend, fees and stock costs. Flippa Jonathan Lea Network About 1-2 days.
- Find out how customers arrive and buy. Review website traffic and search performance, paid adverts, email marketing, social accounts and repeat customers. Check whether sales rely heavily on one channel. Valius About 2-4 hours.
- Check the website and its running costs. Verify analytics independently and examine the site’s technology, hosting, payment systems, software and licences. Ask what needs regular maintenance and what ongoing software or marketing spending is needed. Valius About 1-2 days.
- List everything included in the sale. Write down the website, domains, customer data, social accounts, content, brand assets, supplier relationships and operating documents included. Ask for the purchase agreement to name the assets being transferred. Valius About 2-4 hours.
- Confirm who owns the content and brand. Check ownership of the brand, content, images, software and other intellectual property. Ask for relevant assignments or licences; paying a contractor to create something does not necessarily mean the rights transfer to you. Jonathan Lea Network About 1-3 days.
- Check how customer data may be used. Ask whether customer data can lawfully transfer and be used for the same purposes. Review privacy information, marketing permissions or other lawful bases, opt-outs, complaints and reported data breaches. Jonathan Lea Network About 1-2 days.
- Check rules, contracts and advice before committing. Check platform terms, contracts, tax position and any industry-specific requirements before committing. If using Flippa, consider its offers and escrow process; arrange independent legal and financial advice suited to the deal. Flippa Jonathan Lea Network About Several days or longer.
Your first 15 minutes
Choose one type of online business you might buy, then make a checklist of the financial, traffic, customer-data and ownership records you would need to verify before making an offer.
The money
There is no reliable standard price for an online business. Compare similar listings, then judge the asking price against independently checked sales, costs, assets, risks and the work needed after purchase; ask an accountant and solicitor to review the deal.
Example only: In one month, an online shop takes in £2,000 and has £1,400 in running costs, leaving £600 before tax and your own pay. Separately, a shop takes in €2,000 and has €1,400 in running costs, leaving €600 before tax and your own pay. These figures are illustrative, not a forecast.
The rules
Buying and running an online business is generally lawful in the UK and Ireland. You must follow the tax, data, contract and consumer rules that apply to your business. The rules depend on your business and how it operates. Get independent advice before making a substantial purchase.
UK and Northern Ireland
- Tax and Self Assessment. The UK trading allowance is £1,000 a year. It applies to gross trading income before expenses. If your income is above this, tell HMRC. If you need to register for Self Assessment, register by 5 October after the tax year ends. GOV.UK Tax Help for Hustles GOV.UK
- VAT. You must register for VAT if your taxable turnover is over £90,000. As part of your checks before buying, check the business’s VAT status and records with HMRC or an accountant. Business.gov.uk
- Customer data and ICO fee. Check that customer data can lawfully transfer and be used for your intended purpose. Check the lawful basis, customer information, marketing records and opt-outs. The ICO says its wholesale and retail self-assessment tool can help you decide whether you need to pay a fee. There is no general rule for every sole trader. The ICO lists advertising or marketing another person’s business, goods or services as an example where a fee is required. Holding customer details only for the business’s own accounts and transaction records is likely to be exempt. Jonathan Lea Network ICO
- Platforms and consumer sales. Check whether platform accounts, software licences and contracts can transfer. Some may restrict transfers or require approval. Review your consumer-facing terms and obligations before continuing sales. Get legal advice if needed. Jonathan Lea Network
- Advertising and age. Clearly label advertising and affiliate content, for example with “Ad”. This information is for adults aged 18 and over. There is no specific legal minimum age for buying a business stated here. Ask a solicitor about your circumstances. ASA
Ireland
- Income tax. If you are self-employed, you deal with income tax, PRSI (Class S) and USC under self-assessment. Preliminary tax is due by 31 October. If you are a PAYE worker, you need Form 11 if your taxable non-PAYE income is over €5,000 or your gross non-PAYE income is over €30,000. Below those limits, declare it on Form 12 through myAccount. Citizens Information Revenue
- VAT. The VAT registration thresholds are €42,500 for services and €85,000 for goods. Check which threshold applies to your business with Revenue or an accountant. Revenue
- Business name. If you trade under a name other than your own, register the business name with the CRO. Online registration costs €20. CRO
- Data, consumer sales and platforms. As part of your checks before buying, check whether customer data can transfer and be used for your intended purpose. Check customer information, marketing records and opt-outs. Check platform or software rules for transfer restrictions or approval requirements. Review consumer-facing terms before taking over sales. Jonathan Lea Network
- Advertising and age. If the business publishes commercial influencer content, label it clearly, for example with “#Ad”. This information is for adults aged 18 and over. There is no specific legal minimum age for buying a business stated here. Ask a solicitor about your circumstances. CCPC
Checked against official sources: 22 October 2026. Not yet reviewed by a qualified tax or legal adviser. General guidance, not legal advice. Check the official link beside each point before you start.
Common mistakes
- Trusting seller claims without checking reports and payment records.
- Ignoring refunds, fees, advertising spend, stock costs or ongoing software costs.
- Assuming customer data, content, software or platform accounts will transfer automatically.
- Buying a business that depends heavily on one platform or traffic source.
- Agreeing to a deal before an independent legal and financial review.
AI-made demonstration: this module has a 20-second street-chat video in the interactive guide. The presenter and the people in it are computer-generated, not real people.