Cost of E-commerce Website Development UK
Shyam Singh
Last Updated on: 13 October 2026
"How much will our online shop cost?" is usually the first question a UK business asks when planning an ecommerce website, and the answers online range from a few hundred pounds to six figures. Both can be right, because the price depends on what you're actually building.
This guide breaks down the cost of ecommerce website development in the UK in 2026: typical prices by store type and platform, what drives the cost, the running costs most quotes leave out, and how to budget for your first year.
- Template store, professionally set up: around £1,500 to £8,000
- Custom-designed small or medium store: around £8,000 to £25,000
- Advanced store with integrations: around £20,000 to £50,000
- Enterprise or fully custom platform: £50,000 or more
- Plus running costs: platform or hosting fees, apps, payment fees and maintenance
Ecommerce Website Costs at a Glance (UK, 2026)
| Type of store | What you typically get | Typical build cost | Timeline |
|---|---|---|---|
| Starter template store | Theme set-up and branding, products, payments, shipping, essential pages | £1,500 – £3,000 | 2 – 3 weeks |
| Customised template store | Premium theme tailored to your brand, a few custom sections, basic SEO | £3,000 – £8,000 | 3 – 5 weeks |
| Custom-designed store | Bespoke design, custom product and collection pages, key integrations | £8,000 – £25,000 | 6 – 12 weeks |
| Advanced store | Large catalogue, ERP or stock integration, B2B or multi-currency, custom features | £20,000 – £50,000 | 3 – 5 months |
| Enterprise or fully custom | Shopify Plus, Adobe Commerce or headless builds, complex integrations | £50,000+ | 4 – 9 months or more |
Indicative ranges from Fulminous Software for UK agency projects, excluding VAT, platform fees, paid apps and content.
Ecommerce Website Costs by Platform
Your platform affects both the build cost and what you pay every month. Platform prices below were checked in October 2026 and change regularly, so confirm them on each provider's pricing page.
| Platform | Platform cost | Typical build cost | Best for |
|---|---|---|---|
| Shopify | Basic £25, Grow £65, Advanced £344 a month (or £19, £49, £259 a month billed annually) | £1,500 – £50,000 | Most small and medium stores |
| Shopify Plus | Priced separately, published in US dollars | £50,000+ | High-volume, B2B and multi-store brands |
| WooCommerce | Free plugin; pay for hosting, theme and extensions | £5,000 – £25,000 | Content-led stores and bespoke requirements |
| BigCommerce | Plans published in US dollars, with annual sales limits | £6,000 – £30,000 | Larger catalogues and international selling |
| Magento / Adobe Commerce | Open Source free; Adobe Commerce licence quoted on request | £20,000 – £100,000+ | Large, complex and multi-brand retailers |
| Custom or headless | Hosting and services you choose | £40,000+ | Unique experiences and complex integrations |
Choosing between platforms? See our Shopify development services, Magento development and WordPress and WooCommerce development. For a deeper look at WordPress budgets, read our WordPress website cost guide.
DIY vs Freelancer vs Agency
| Option | Upfront cost | Pros | Cons |
|---|---|---|---|
| Build it yourself | Platform fee and a theme | Lowest cost, quick to start | Your time; easy to miss SEO, speed and conversion basics |
| Freelancer | Usually lower than an agency | Flexible and personal | One person covers everything; availability and continuity risk |
| Agency | Higher | Design, development, testing and support in one team | Higher day rates; quality varies between agencies |
London agencies often charge more than regional ones for similar work. Whoever you choose, judge them on relevant ecommerce work you can test, not just on price.
What Drives the Cost of an Ecommerce Website?
Where the Budget Goes
For a typical custom-designed store, the budget usually splits roughly like this:
| Stage | Typical share | What happens |
|---|---|---|
| Discovery and planning | 5 – 10% | Requirements, platform choice, site structure |
| UX and design | 15 – 25% | Wireframes and designs for key pages |
| Development and integrations | 40 – 55% | Theme or front end, features, apps and integrations |
| Content and data | 5 – 15% | Product set-up, migration and page content |
| Testing and launch | 10 – 15% | Devices, checkout, speed, redirects and go-live |
Ongoing Running Costs
The build is a one-off; running costs continue every month. Budget for:
- Platform subscription or hosting: a hosted platform's monthly fee, or hosting for WooCommerce and Magento.
- Apps and extensions: reviews, email, subscriptions, search and shipping tools often add tens to hundreds of pounds a month.
- Payment processing fees: charged on every sale. For example, at Stripe's standard UK card rate of 1.5% + 20p, 1,000 orders of £50 would cost about £950 in fees. Rates vary by provider, card type and plan.
- Domain and email: a small annual cost for your domain, plus business email.
- Maintenance and support: updates, fixes and improvements, often on a monthly retainer.
- Marketing: email marketing, paid advertising and SEO to bring in traffic.
For Shopify-specific budgets, see our guide to Shopify maintenance costs in the UK.
Tell us about your products and goals. We'll recommend a platform and send an itemised GBP quote, including running costs.
Get a free ecommerce quoteExample First-Year Budgets
Illustrative first-year totals for three typical UK stores, excluding VAT, payment processing fees and marketing:
| Store | Build | Platform and apps (year) | Support (year) | Approximate first year |
|---|---|---|---|---|
| Small brand on Shopify, customised theme, 100 products | £3,000 – £8,000 | £600 – £1,800 | £0 – £3,600 | £3,600 – £13,400 |
| Growing retailer, custom design, stock and accounting integration | £8,000 – £25,000 | £1,500 – £5,000 | £3,600 – £9,000 | £13,100 – £39,000 |
| Established business, large catalogue, B2B and ERP integration | £25,000 – £50,000+ | £4,000 – £15,000+ | £9,000 – £24,000+ | £38,000 – £89,000+ |
Illustrative only. Support assumes optional retainers from around £300 a month for small stores. Your figures will depend on platform, apps and support level.
Hidden Costs to Plan For
- Product photography, video and copywriting
- Paid apps that add up month after month
- Data migration and 301 redirects to protect search rankings
- Payment, refund and currency conversion fees
- Cookie consent, privacy policy and terms of sale
- Accessibility improvements
- VAT at 20% on supplier invoices if you're not VAT-registered
- Ongoing maintenance and security after launch
How to Keep Ecommerce Costs Under Control
- Start with what you need to sell. Launch with core features, then add more based on customer data.
- Customise a premium theme before committing to a fully custom design.
- Audit apps regularly and remove ones you no longer use.
- Prepare content early. Late product data and images are a common cause of delays and extra cost.
- Plan integrations up front rather than adding them mid-project.
- Agree a clear scope and change process before the build starts.
How to Get an Accurate Ecommerce Website Quote
Quotes are only comparable if suppliers are pricing the same thing. Share a short brief covering:
- What you sell, how many products and variants, and any personalisation
- Must-have features, such as subscriptions, B2B accounts or click and collect
- Systems to integrate, such as stock, EPOS, accounting or CRM
- Your preferred platform, if you have one
- Websites you like and why
- Your budget range and launch date
Then ask each supplier for an itemised quote showing what's included, VAT, expected running costs, who owns the code and accounts, and what support costs after launch. If you're comparing website rebuilds, our guide to website redesign services may help.
Frequently Asked Questions
How much does an ecommerce website cost in the UK?
As a guide, a professionally set up template store typically costs £1,500 to £8,000, a custom-designed small or medium store £8,000 to £25,000, an advanced store with integrations £20,000 to £50,000, and enterprise or fully custom builds £50,000 or more. On top of the build you will pay platform or hosting fees, apps or extensions, payment processing fees and ongoing maintenance.
What is the cheapest way to build an ecommerce website in the UK?
The cheapest route is usually building it yourself on a hosted platform such as Shopify using a free or low-cost theme, paying mainly the monthly subscription and payment fees. This suits very small catalogues. As your sales grow, professional design, integrations and optimisation usually pay for themselves.
How much does it cost to run an ecommerce website each month?
Running costs typically include a platform subscription or hosting, paid apps or extensions, payment processing fees on every sale, a domain, email and marketing tools, and optional maintenance support. Small stores might spend under £100 a month excluding payment fees, while larger stores can spend thousands once apps, support and marketing are included.
Is Shopify cheaper than WooCommerce?
It depends. WooCommerce is free to install, but you pay for hosting, extensions, security and more maintenance. Shopify charges a monthly subscription but includes hosting and security. For many small and medium stores, the total cost over a few years is similar, so ease of use, features and growth plans should guide the choice.
How long does it take to build an ecommerce website?
A template-based store usually takes 2 to 5 weeks, a custom-designed store 6 to 12 weeks, and an advanced or enterprise store 3 to 6 months or more, depending on integrations, data migration, content and approvals.
Do ecommerce website prices include VAT?
Agency quotes are often shown excluding VAT, and VAT at 20% is added if the supplier is VAT-registered. VAT-registered businesses can usually reclaim it. Always check whether a quote is shown with or without VAT.
What hidden costs should I budget for?
Commonly missed costs include product photography and copywriting, paid apps, data migration and SEO redirects, payment and currency conversion fees, cookie consent and legal pages, email marketing tools, accessibility fixes and ongoing maintenance after launch.
How can I get an accurate ecommerce website quote?
Prepare a short brief covering your products and catalogue size, must-have features, systems to integrate, platform preference, examples of sites you like, budget and timeline. Ask suppliers for itemised quotes showing what is included, VAT, running costs and post-launch support.
Fulminous Software is a London-headquartered development company. Tell us what you sell and we'll recommend the right platform, with an itemised GBP quote.
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Expert in Software & Web App Engineering
I am Shyam Singh, Founder of Fulminous Software Private Limited, headquartered in London, UK. We are a leading software design and development company with a global presence in the USA, Australia, the UK, and Europe. At Fulminous, we specialize in creating custom web applications, e-commerce platforms, and ERP systems tailored to diverse industries. My mission is to empower businesses by delivering innovative solutions and sharing insights that help them grow in the digital era.
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