How Much Does an Online Store Cost to Build in 2026?

The honest answer on e-commerce website cost: a professionally built online store runs $5,000–$30,000 (£4,000–£24,000), with lean template-based starter stores at the bottom of that range and custom builds with integrations at the top. But the build price is only half the story — stores carry running costs (platform, payments, apps) that brochure websites don’t, and ignoring them is how new store owners end up profitable on paper and broke on Stripe. Here is the full picture.

01What drives an online store’s price

Four things separate a $5,000 store from a $30,000 one:

• Catalogue complexity. Fifty simple products is a data-entry task; five hundred products with variants, bundles, and size charts is an architecture project.
• Design level. A well-customised premium theme covers most stores brilliantly. Full custom design pays off when brand differentiation is the strategy — the same template-vs-custom economics as our general website cost guide, with higher stakes.
• Integrations. Every connection — accounting, inventory, shipping rates, a warehouse, a POS, a subscription engine — is real engineering. This is where “simple store” quotes quietly double.
• Content readiness. Product photography, descriptions that sell, and size/spec data take real money or real time. Stores stall on missing product content more often than on missing code.

02The platform choice changes the cost shape

Shopify front-loads less and rents more: plans from ~$29–39/month, apps typically adding $20–100/month, and an extra 0.5–2% transaction fee unless you use Shopify Payments. WooCommerce front-loads more (hosting, setup, extensions) and rents less — no platform fee, just your ~$20+/month hosting and card processing.

Which shape suits you is the whole Shopify vs WooCommerce question — short version: Shopify for speed and simplicity, WooCommerce for control and lower costs at scale. Either way, budget the universal constant: card processing around 2.9% + 30¢ per transaction from any mainstream provider.

03The monthly reality: what stores cost to run

A realistic small-store monthly stack: platform or hosting ($20–40), essential apps or extensions ($20–100), email marketing ($20–60 — the flows in our automation guide are how stores earn it back), plus maintenance reserves of 10–20% of the build cost per year. Call it $100–$250/month for most small stores before marketing spend.

That number isn’t a warning — it’s a filter. If projected margins can’t absorb $200/month of infrastructure, the problem is the business model, not the website quote. Better to learn that from arithmetic than from inventory in the garage.

“Brochure sites cost money to build. Stores cost money to run. Confusing the two is the most expensive spreadsheet mistake in e-commerce.”
— The budgeting line we open every store discovery call with

04Where cheap stores actually lose money

A $1,500 store quote usually means a template with your logo, products pasted in, and none of the invisible work: no speed optimisation (slow product pages bleed conversions), no structured data for Google Shopping, generic checkout settings, and no analytics beyond pageviews. The store “works” — and converts at a fraction of what the same traffic deserves.

The expensive irony: at typical conversion gaps, the revenue difference overtakes the build-price difference within months for any store with real traffic. In e-commerce, build quality isn’t a luxury line item — it is the margin.

05Replatforming: moving an existing store

Migrating a live store — Woo to Shopify, Shopify to Woo, or off a legacy platform — prices like a build plus a moving day: expect the build ranges above plus migration work for products, customers, order history, and (critically) SEO. Every product URL that changes needs a 301 redirect, or years of Google equity evaporate on launch weekend — the same discipline as our redesign checklist, with revenue on the line hourly.

Two migration line items owners forget: apps don’t transfer (your $60/month Shopify app stack needs WooCommerce equivalents re-bought and re-configured, or vice versa), and neither do email flows — carts, automations, and integrations all get rebuilt against the new platform’s events. Budget migration at 30–50% on top of the equivalent fresh build, and treat any “we’ll just copy it over” quote as the red flag it is.

06How to budget for a store that pays

Work backwards from unit economics: average order value × realistic monthly orders × margin tells you what infrastructure the business can carry. Then build the leanest store that does justice to the products — template design, flawless checkout, proper product content — and reinvest from revenue. Launching lean and upgrading from profits beats launching fancy and praying.

Want the numbers run on your catalogue? Send products, platforms you’re considering, and target launch date through the enquiry form — our e-commerce team will reply with an itemised build quote and an honest monthly running-cost estimate within a working day.

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