What an Online Store Costs and How Fast It Pays Back

“How much does a store cost?” is the most common question — and the most honest answer is: it depends on what is supposed to earn. Here is the budget broken into parts, plus how to calculate payback instead of chasing a flat “turnkey” price.

Where the budget actually goes

• Analytics and prototype (5–10%). Catalogue structure, buyer journeys, filter and checkout logic. The boring stage that saves dozens of development hours.
• Design (10–15%). A custom UI rather than blocks glued together. Design moves conversion directly — on the product page and in the cart.
• Frontend development (20–25%). Catalogue, product card, cart, checkout, customer account, responsive behaviour and speed.
• Backend and integrations (35–45%). Stock, payments, delivery, ERP, CRM, warehouse. This is where the real complexity lives — and where “cheap” solutions break.
• Content and the SEO baseline (5–10%). Product copy, meta, URL structure, breadcrumbs, speed.
• Support (monthly). Updates, monitoring, new features — the cost line everyone forgets at the start.

Three typical budgets

Tier	Price	What is inside	Who it fits
Online store · Lite (up to 100 products)	from $1,446 (₴60,000)	catalogue, filters, payments, a basic account, SEO baseline	a niche store up to ~100–300 products
Online store · Standard (turnkey: 1C, buyer account)	from $3,614 (₴150,000)	smart search, personalised offers, stock sync, customer account	a running store with volume and a warehouse
Marketplace	quoted individually	multi-vendor, seller dashboards, payout and commission splitting	a platform from 1,000+ SKUs

Timelines: 5–8 weeks for Lite, 8–14 weeks for the full store. The multi-vendor architecture is broken down separately: marketplace development.

The year-one price, not the launch price

Compare cost of ownership over 12 months, not the invoice for the build:

Approach	Start	Every year after	Risk
Website builder	low	subscription ×12 plus work you did not foresee	you outgrow it in 6–9 months
Template studio	medium	hourly fixes, a slow frontend	a rewrite in 2–3 years
Custom development	from $3,614 (₴150,000)	only support and growth	minimal: the code and data are yours

After launch, care plans are from $72 (₴3,000)/mo, and one-off work outside a plan is from $41 (₴1,700)/hr.

Why “cheap” ends up expensive

Template solutions and builder clones tempt you with a low entry price, but they:

• collapse under load and lose speed — and speed is direct money: every extra second of load time costs up to 20% of conversion;
• are rigid: any change turns into endless paid revisions;
• carry commissions and subscriptions that add up over a year — often past the cost of building your own;
• give you nothing of the data: you can neither analyse behaviour nor export the customer base.

How to work out the payback

Do not price “the website”. Model the economics:

1. Traffic × conversion × average order value = a monthly revenue forecast. A worked example on round figures, not a client result: 12,000 visits × 1.8% × $60 AOV ≈ $13,000 a month. Put your own three numbers from analytics in — the formula is the same.
2. Subtract the cost of running it: support, hosting, acquiring, logistics services.
3. Add the speed effect. Moving LCP from 4.2 s to 1.4 s on the same traffic is percentage points of conversion, not a “feels faster” story.
4. Add repeat purchases. An account, order history and reactivation triggers return 20–40% of revenue without new traffic.
5. Conclusion: months to payback = budget ÷ the monthly margin the store adds.

A store built around your process — not the other way round — usually lands at 4–9 months. That is exactly why the money belongs in the core, not in the pretty pictures.

What actually saves money

1. Scope agreed up front. The list of products, integrations and order statuses before the contract, not “we’ll see later”.
2. Lite now, grow later. An architecture that takes growth without a rewrite: start with Online store · Lite (up to 100 products), add modules as volume appears.
3. Your own content. Product photos and descriptions are the biggest hidden delay — prepare them in parallel with development.
4. Analytics from day one. Without GA4 and cart events you will not know what is broken and will iterate blind.
5. One price before the start. A fixed estimate after the brief, not an approximate “from” that grows mid-project.

Summary

The honest price of an online store is an investment in specific numbers: conversion, average order value and speed. We size the budget from your business model rather than from a template, and deliver a store that earns instead of merely existing.

Next: the e-commerce service, choosing an e-commerce platform: 6 options and marketplace or your own store. All price benchmarks sit on the pricing page.