Quick answer: Ecommerce website cost depends on the platform you choose, how custom the design is, how many products and variations you sell, the features you need, the systems the store must connect to, and who prepares the product content. On top of the build, every store has running costs: platform or hosting fees, apps and plugin licences, payment processing fees, and ongoing maintenance and marketing. A small store on a hosted platform with a ready-made theme can launch on a modest budget, while a custom store with complex catalogues and integrations costs many times more. Plan for both launch and the first year of running costs.
Why ecommerce quotes vary so much
Asking “how much does an online store cost?” is like asking how much a shop fit-out costs. A market stall and a department store both sell things. Quotes differ because:
- One quote uses a ready-made theme, another a custom design
- One assumes you will load all products yourself, another includes it
- Integrations with stock, accounting or shipping systems may or may not be included
- Some include photography, copywriting and SEO setup, others do not
- Some cover launch only, others include support and training
This spring many businesses moved online quickly to keep selling during shop closures. Some of those quick launches now need rebuilding properly. Knowing the cost drivers helps you avoid paying twice. Our guide on how to start selling online covers the fastest sensible routes.
Cost driver 1: The platform
Hosted platforms
Shopify, BigCommerce, Squarespace Commerce and Wix eCommerce charge a monthly subscription that includes hosting, security and updates.
- Lower upfront cost and faster launch
- Monthly fees that rise with higher plans
- Extra transaction fees on some platforms unless you use their own payment service
- Apps for extra features, many with their own monthly fees. See our guide to Shopify apps.
Self-hosted platforms
WooCommerce on WordPress and Magento Open Source are free to download, but you pay for hosting, premium extensions, security and maintenance.
- More flexibility and full control of your data and code
- Hosting quality matters, especially as traffic grows
- Extensions for shipping, subscriptions, bookings and payments, many with yearly licences
- Someone must maintain it, applying updates and keeping it secure
Our comparison of WooCommerce vs Shopify looks at the trade-offs in detail.
Custom-built stores
A fully custom platform makes sense only for unusual business models, very high volumes or complex integrations that off-the-shelf platforms cannot handle. It has the highest upfront and maintenance cost.
Cost driver 2: Design
- Ready-made theme: lowest cost, professional look, but shared with other stores and limited to the theme’s layouts.
- Customised theme: a theme adapted to your brand, with some layout changes.
- Custom design: layouts designed around your products and customers, then built by a developer. Costs more, but can convert better and fit your brand exactly.
The key templates in a store are the home page, category pages, product pages, cart, checkout and account pages. Product and checkout pages matter most for sales.
Cost driver 3: Catalogue size and complexity
A store with twenty simple products is a different project from one with five thousand products, each in several sizes and colours.
Effort grows with:
- Number of products and variations
- Product options, such as personalisation or made-to-order choices
- Product bundles and kits
- Filters and attributes for large catalogues
- Importing products from spreadsheets or an old platform
Clean, well-structured product data saves time on any platform.
Cost driver 4: Features
Every feature beyond a basic store adds setup time, licences or custom work. Common examples:
- Subscriptions or recurring orders
- Wholesale or trade pricing with customer logins
- Bookings, appointments or rentals
- Product configurators or custom options
- Multiple currencies and languages
- Gift cards, loyalty points and referral programmes
- Advanced search and filtering
- Click and collect or local delivery
- Customer reviews and questions
Ready-made extensions keep many of these affordable. Unusual requirements may need custom development.
Cost driver 5: Integrations
Connecting the store to other systems is often where budgets grow:
- Stock and inventory systems
- Accounting software
- ERP systems
- Shipping carriers and label printing
- CRM and email marketing tools
- Marketplaces such as Amazon and eBay
- Point of sale for physical shops
Each integration takes time to set up and test. Some have ready-made connectors. Others need custom API work, especially for older systems.
Cost driver 6: Payments and shipping
Payments carry ongoing costs rather than build costs. Payment gateways charge processing fees on each transaction, and some platforms add their own fees. Compare options in our guide to WooCommerce payment gateways.
Shipping setup varies from a flat rate to live carrier rates, zones, weight-based pricing and free shipping thresholds. Complex rules take time to configure and test. Our WooCommerce shipping guide covers the options.
Cost driver 7: Content
Content is often underestimated:
- Product photography, which strongly affects sales
- Product descriptions written for customers and search engines
- Category descriptions
- Policies: delivery, returns, privacy and terms
- About and contact pages
If you supply finished content, costs are lower. If you need photography and copywriting, budget for them separately.
Cost driver 8: Launch work
Before going live, a proper store needs:
- Testing orders, payments, refunds and emails
- Mobile and browser testing
- Speed optimisation
- Analytics and ecommerce tracking setup
- Basic SEO setup, including redirects if replacing an old store
- Security checks and backups
- Staff training
Cutting these corners often costs more after launch.
Running costs to plan for
A store keeps costing money after launch. Plan a yearly budget for:
- Platform subscription or hosting
- Domain and SSL certificate if not included
- App, theme and extension licences
- Payment processing fees
- Maintenance, updates and security
- Small improvements and fixes
- Marketing: SEO, ads, email and social
For many stores, marketing becomes the largest ongoing cost, because a store without visitors does not sell. Leave room for it.
How to plan a sensible budget
- List must-have features for launch and those that can wait.
- Estimate your product count and data quality.
- Decide who provides content.
- List every system the store must connect to.
- Choose the platform that fits your products, budget and growth plans.
- Get comparable quotes using a written brief.
- Add the first year of running costs to the launch budget.
- Keep a reserve for changes after launch.
Our guide to website development cost explains how to make quotes comparable.
FAQ
Is Shopify cheaper than WooCommerce?
Shopify usually costs less to start and more each month. WooCommerce has more upfront setup and depends on hosting and maintenance. Total cost depends on your apps, extensions and how much custom work you need.
Can I build an ecommerce site myself?
Yes, on a hosted platform with a ready-made theme, if your needs are simple. Complex catalogues, integrations and custom design benefit from professional help.
How long does an ecommerce website take to build?
A simple store can launch in a few weeks. Larger custom builds with integrations take several months.
Spend where it sells
An ecommerce website is an investment that should pay for itself through sales. Spending wisely on the platform, product pages and checkout matters more than chasing every feature. If you want a store planned and built to sell, see how we help businesses turn visitors into customers.
