eCommerce Website Cost Calculator UK
Find out exactly what an online store costs in the UK in 2026. Take better decision with data for your store development.
eCommerce Cost Estimator
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Your Estimated eCommerce Website Cost
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Most UK agencies would quote you that estimate or more. WebLane ecommerce packages start from £599 with full WooCommerce setup, payment gateway integration, professional copywriting, and 100% ownership from day one. No platform lock-in, no monthly agency fees.
How Much Does an eCommerce Website Cost in the UK?
Building an online store is one of the best investments a UK business can make. But the price range is wide: a basic Shopify setup costs a few hundred pounds, while a fully custom ecommerce build can run to five figures. The difference is not just scale. It is platform choice, feature complexity, and who is building it.
This guide gives you real 2026 UK pricing data for ecommerce website design, broken down by platform, product count, and feature set, so you can budget accurately before you speak to a single agency.
eCommerce Website Design Cost by Store Size
Here is a clear breakdown of what you can expect to pay depending on the size and complexity of your online store.
| Store Size | Products | Price Range | Best For |
|---|---|---|---|
| Starter Store | 1 to 20 | £599 to £1,200 | New sellers testing a product range, handmade or niche goods |
| Growing Store | 21 to 100 | £1,200 to £2,500 | Established sellers expanding online, multiple categories |
| Established Store | 101 to 500 | £2,500 to £5,000 | Retail businesses moving online, subscription models |
| Enterprise Store | 500+ | £5,000 to £15,000+ | Large catalogues, custom integrations, B2B ecommerce |
Most small UK businesses starting out online need a starter or growing store. You do not need to spend £5,000 to launch a professional, high-converting online shop.
WooCommerce vs Shopify vs Custom: Which Is Cheapest?
Platform choice is one of the biggest factors in your total ecommerce website cost. Here is an honest comparison of the three most common options in the UK.
- Runs on WordPress (you own it)
- No platform monthly fee
- Hosting: £10 to £30/mo
- Payment fees: 1.4% to 2.9%
- Most flexible long term
- Hosted (Shopify owns the platform)
- Platform fee: £25 to £250/mo
- Transaction fees unless using Shopify Pay
- Easier to manage day to day
- Limited customisation
- Built from scratch to your spec
- Full flexibility and control
- No platform restrictions
- Higher ongoing dev costs
- Best for complex requirements
7 Things That Affect Your eCommerce Website Cost
Number of Products
More products means more pages to design, more content to write, and more time to set up. Uploading 500 products takes significantly longer than 20. Clarify whether your agency includes product upload in the quote.
Payment Gateway Setup
Integrating Stripe, PayPal, Klarna, or Buy Now Pay Later options adds cost and complexity. Basic single-gateway setup is standard. Multiple payment options and BNPL integrations add to the price.
Product Copywriting
Good product descriptions convert browsers into buyers. Writing unique, SEO-friendly copy for each product is time-intensive. If your agency includes it, that is a significant genuine saving.
Product Photography
Professional product images are one of the highest ROI investments for any online store. If you need photography sourced or edited as part of the project, budget for it separately. Around £150 to £500 for a basic shoot.
SEO and Structure
A well-structured ecommerce site with proper category pages, meta tags, and schema markup ranks significantly better. On-page SEO setup should be included from the start, not bolted on later.
Third-Party Integrations
Connecting your store to accounting software, stock management, email marketing platforms, or courier APIs adds cost. Each integration requires setup and testing time.
Ownership and Platform Fees
The cheapest upfront option is not always the cheapest overall. Shopify at £79/month is nearly £1,000/year, every year. A one-time WooCommerce build you own outright often costs less over three to five years.
Ongoing Costs of Running an eCommerce Website in the UK
Your build cost is just the start. Here is what you will pay to keep an online store running in the UK.
| Cost | Monthly Estimate | Annual Estimate | Notes |
|---|---|---|---|
| Hosting | £10 to £50 | £120 to £600 | WooCommerce needs quality managed WordPress hosting |
| Domain | N/A | £10 to £20 | Renews annually |
| SSL Certificate | Free to £8 | £0 to £100 | Most good hosts include free SSL |
| Payment Fees | Varies | 1.4% to 2.9% per sale | Stripe and PayPal standard UK rates |
| Shopify Platform Fee | £25 to £250 | £300 to £3,000 | WooCommerce avoids this entirely |
| Maintenance / Updates | Optional | £200 to £600 | Security updates, plugin management |
Factor these into your total cost of ownership, not just the build price. A WooCommerce store costing £1,500 upfront with £300/year in hosting is significantly cheaper over five years than a Shopify store at £79/month.