Short answer: the cost of an online store depends mostly on three things: how complex your products are, how the store connects to the rest of your business (payments, shipping, stock, invoicing) and how much of the design and buying experience is made for your customers rather than taken from a template. A small catalogue with standard checkout is a modest project. Thousands of products with variations, synced stock and several markets is a different one. This guide explains each cost driver so you can plan a realistic budget and compare quotes properly.
What makes an online store more expensive than a website
A store is a website plus a sales system. Besides pages and design, someone has to set up the catalogue, payments, shipping rules, taxes, emails, legal pages and the way orders reach you. Every one of these needs testing with real scenarios: a discount code, a failed payment, a return, an order to another country. That testing is a big part of the work, and it is what separates a store that sells from one that loses orders quietly.
The main cost drivers
1. Catalogue size and product complexity
Fifty simple products are quick to set up. Products with sizes, colours, bundles, personalisation or prices that depend on quantity need more structure, more design work and more testing. Importing products from a spreadsheet or another system also takes time, especially when the data needs cleaning first.
2. Payments, shipping and taxes
A standard card payment gateway is straightforward. Costs grow with cash on delivery, several payment methods, courier integrations with live rates and labels, pickup points, free-shipping rules and VAT for several countries.
3. Integrations with your business
If orders, stock or invoices have to flow to an ERP, warehouse, accounting or invoicing tool, that connection often becomes the largest single part of the project. Ready-made connectors help, but they still need configuration and testing, and custom ones need development.
4. Design and buying experience
Product pages, filters, search, the cart and checkout decide how much the store sells. A theme gives you a generic version. A custom design is built around how your customers choose and buy, with fewer steps and clearer information. It costs more up front and usually pays back in conversion.
5. Markets and languages
Every extra language or currency adds translation, set-up, pricing rules and testing.
WooCommerce, Shopify or custom?
| Platform | Good for | Keep in mind |
|---|---|---|
| WooCommerce (WordPress) | Full control, content and SEO, local payment and courier options, no platform fee on sales | Needs good hosting and regular maintenance |
| Shopify and similar hosted platforms | Quick start, hosting included | Monthly fees, paid apps add up, less control over checkout and data |
| Custom e-commerce | Unusual business models and very large volumes | The highest cost to build and to maintain |
For most small and medium businesses, WooCommerce or a hosted platform is the right choice. The decision depends on your products, integrations and how much control you need, not on which platform is fashionable.
The running costs after launch
- hosting that stays fast under traffic and during sales;
- payment provider fees on every order;
- subscriptions for extensions, apps or connectors;
- maintenance: updates, security, backups and checking that checkout still works after every change;
- adding products, photos and descriptions, by you or by someone you pay;
- marketing: search, ads, email and social, because a store without traffic does not sell.
When you compare platforms, compare the total cost over two or three years, not only the build.
How to keep the budget under control
- Launch with what you need to sell. Start with the core catalogue, payment and shipping. Loyalty programmes, wishlists and advanced filters can follow once you see real data.
- Prepare your product data early. Clean names, prices, variations and photos save more time than any plugin.
- Decide on integrations before the quote. They are the biggest unknown. Name the systems you use.
- Ask for a fixed price for a fixed scope and a clear list of what is excluded.
- Plan maintenance from day one, so updates never break checkout during your busiest week.
Red flags in an online store quote
- No questions about your products, shipping or the systems you already use.
- Nothing about testing checkout, emails and payments.
- No plan for SEO, especially when you move from an old store.
- Many paid extensions without explaining their yearly cost.
- No support after launch.
Frequently asked questions
Is WooCommerce cheaper than Shopify?
WooCommerce has no platform fee, but needs hosting and maintenance. Shopify includes hosting, but charges monthly fees and often needs paid apps. Over a few years the totals can be close; the real difference is control and flexibility.
How long does it take to build an online store?
A small store with a standard checkout can launch in a few weeks. A custom store with integrations usually takes two to four months. Product data and integrations are the usual reasons for delays.
Can I start small and add features later?
Yes, and it is often the smartest way. Build a solid base, launch, learn what customers do, then invest in the features that will sell more.
Who adds the products?
Either you, after a short training, or the agency as part of the project. Agree on this before the quote, because entering and checking a large catalogue takes real time.
Planning a new store or moving an old one? See how we build online stores that sell, or book a free consultation and get an honest view of what your store needs to launch and grow.