How much does an online store cost in 2026: Shopify theme, custom build or headless?

What does each route cost: a Shopify theme, a custom build or headless?

Three different builds hide behind the words “online store”. A theme store rents Shopify's checkout, hosting and admin and dresses them in your brand. A custom store is software written around your catalogue and rules. Headless keeps a commerce engine such as Shopify for products and payments and puts a separately built front end on top. The ranges below are published by firms that sell these builds: read them as quotes, not audited averages.

The spread is wide because the hours are: Cleveroad's own sample estimate adds up to 936 hours and about $90,000. A studio that publishes package prices has narrowed the scope before quoting, so compare the list of what is included, not the totals.

What does a store cost to run in its first year?

The build is paid once; the platform, the payment provider and the apps bill you every month the store is open. A cheap build on an expensive stack can overtake a dearer build within two years.

A worked example with invented sales: $10,000 a month taken by card at a $50 average order means 200 orders. Stripe keeps 2.9%, or $290, plus 30¢ per order: about $350 a month and $4,200 a year before the plan or a single app. Add content per product, support and launch marketing, and you have a first-year budget to hold every quote against.

Which lines push an ecommerce quote up?

• Product count and data quality: 100 clean rows import quickly; thousands with duplicates, stale stock and missing images are a project of their own.
• Variants and pricing rules: sizes and colours are standard; made-to-measure options, bundles, wholesale tiers and regional prices need custom logic.
• Integrations: a warehouse, an ERP, 1C, a CRM or marketplace stock sync each needs data mapping, error handling and tests.
• Payments and delivery: one provider and flat shipping are simple; deposits, pickup points and live carrier rates are not.
• Languages and currencies: each adds product data, prices and category pages to maintain.
• Content and migration: product photos and descriptions are usually excluded, and leaving another platform means moving customers and orders and redirecting every old URL.

Data quality is the line buyers underestimate. When VITON¹³ assembled the Russia edit of its own marketplace, 8,202 source rows became 5,628 products after 2,493 stale and 81 rejected rows were dropped: almost a third of the file did not survive cleaning.

When is headless worth the extra money?

Headless separates the shop window from the till. You gain control of the front end and its speed: Roboto Studio reports cached Next.js pages served in under 50 ms against 300–800 ms for Liquid themes. You also take on a second codebase, its hosting and the people who maintain it. Roboto Studio, which sells headless builds, reserves it for heavy interactivity, content as important as the catalogue, complex custom filtering and regulated catalogues, and advises against it for a few hundred products on a decent theme.

A quick test: divide the extra first-year cost by a year of gross profit from online sales. Roboto Studio's models put headless about $138,000–$218,000 above a stock store in year one. Assume, purely for illustration, $1,000,000 of online sales at a 40% margin: $138,000 ÷ $400,000 means sales must grow about 35% just to break even.

Speed does move sales. In a Deloitte study for Google covering 37 brand sites and over 30 million sessions, a 0.1-second gain in mobile speed came with 8.4% more retail conversions. That is an average across sites, not a forecast for yours, and a lean theme with fewer apps wins much of that speed without a rebuild. Below a million dollars a year online, tune the theme first.

Shopify or a custom store: how do you choose?

1. Does a standard checkout fit? If buyers pick a product and a variant and pay, Shopify's checkout is hard to beat on cost.
2. Are your prices or options unusual? Configurators, deposits, B2B price lists and regional stock are where themes start to fight back.
3. Which systems must the store talk to? One marketplace feed is an app; a two-way sync with 1C or an ERP is custom work on any platform.
4. Who runs it day to day? A team without a developer needs an admin it can use alone; Shopify has one ready, a custom build must be designed for it.
5. What would leaving cost? Plans and app fees are rent; a custom store costs more upfront, but its code and data move with you.

WooCommerce sits in between: no platform fee and full access to the code, but you run hosting, updates and security yourself. And if you have no audience yet, a marketplace may sell before a store of your own can; our marketplace launch guide prices that route.

Which red flags in an ecommerce quote cost you later?

• No product count or template list: the scope, and the invoice, can grow in any direction.
• No test orders: launch should include a successful payment, a failed one and a cancellation.
• Apps chosen by the builder with no monthly total: each is a subscription you inherit.
• Checkout changes promised on a standard Shopify plan: customising checkout needs Plus.
• Accounts in the agency's name: domain, platform, payments and analytics should be yours from day one.
• A migration with no redirect map: old product URLs that return 404 lose their traffic and links.

What does VITON¹³ charge for a store, and what sits outside the price?

Every store comes in two modes. AI-assisted: AI drafts templates and import scripts, and a developer directs, checks and signs off. Human-led: a specialist builds by hand and AI helps. For a custom store that is $113 against $173 for the same scope.

Outside every price: product photos and descriptions, platform, hosting and payment fees, and a second language or currency. Moving an existing store is website migration, from $53 AI-assisted or $73 human-led. Send your product count, a sample of the product spreadsheet and the systems to connect; the written estimate comes back the next working day.