Shopify Migration Cost Guide (2026)

Most buyers searching for Shopify migration cost are really asking three things: can we afford this, what will change the quote, and how do we avoid paying for the wrong scope? A single number rarely answers any of them. Two stores with similar revenue can need very different work depending on catalog structure, integrations, SEO footprint, and how much historical data must move cleanly.

This guide explains what professional migrations actually include, where quotes diverge, and how to compare proposals without guessing. For a step-by-step launch plan, see the Shopify Migration Checklist. For SEO risk specifically, read How to Migrate to Shopify Without Losing SEO Rankings.

What actually drives migration cost?

Agencies price on transformation work and launch risk — not Shopify subscription fees alone. Below are the scope areas that most often move a quote up or down.

Product catalogue size and variant complexity

SKU count matters, but variant matrices matter more. Option combinations, bundles, digital goods, duplicate SKUs, and inconsistent attribute data all add mapping and QA time. A store with 400 products and messy variant logic can cost more to migrate than a store with 2,000 clean, flat SKUs.

Customer and order history

Moving active customers, addresses, and order records is straightforward when exports are clean. Gaps appear with guest checkout history, custom account fields, B2B company records, and long order archives that must remain searchable for support and finance teams.

SEO redirects and URL mapping

Every indexable legacy URL needs a decision: redirect, rebuild, or retire. Product permalinks, category paths, blog posts, landing pages, and regional URL patterns all count. Incomplete redirect work is one of the most expensive post-launch fixes because traffic loss shows up after go-live, not during staging QA.

Subscriptions and recurring billing

Active subscriptions are not a simple export. Billing tokens, contract terms, failed-payment logic, and app-specific behaviour (Recharge, Skio, native WooCommerce Subscriptions, etc.) require a deliberate migration plan — often with a parallel billing period and customer communication.

ERP, 3PL, POS, or accounting integrations

Inventory sync, fulfilment rules, wholesale pricing feeds, and accounting reconciliation rarely copy across platforms. Each integration needs a mapped data flow, error handling, and test scenarios before launch.

B2B, wholesale, and custom pricing

Company accounts, price lists, net terms, MOQs, and customer-group discounts do not map cleanly to standard Shopify without B2B apps or Shopify Plus features. Scope grows quickly when pricing logic lives outside the catalogue.

Custom Shopify theme or redesign work

Shopify themes are not WordPress templates. A visual refresh during migration is valid, but it is separate from data migration. Even a “lift and improve” approach still means rebuilding sections, metafield templates, and checkout-adjacent UX on Online Store 2.0.

Data cleanup and QA

Real migrations include time to normalise titles, fix broken images, reconcile metafields, validate collections, and run scenario-based checkout tests — not just import rows and hope.

Simple, moderate, and complex migrations

Instead of guessing a price from catalog size alone, think in complexity bands. Investment increases as more systems, URLs, and business rules must move correctly.

Simple migration

• Smaller catalogue with consistent product data
• Standard Shopify theme (minimal custom build)
• Basic redirect set — few indexed URLs or simple URL patterns
• No ERP, 3PL, or POS sync required at launch
• No active subscription billing to migrate
• Limited custom fields or metafields

Simple does not mean “easy.” It means fewer moving parts and less cross-system validation before cutover.

Moderate migration

• Larger catalogue or heavier variant logic
• Custom fields, metafields, or non-standard product attributes
• Subscription or email-platform migration with customer comms
• Custom theme adjustments — not a full redesign, but real build work
• Broader redirect mapping across products, collections, and content
• One or two integrations (reviews, ESP, basic fulfilment)

Moderate migrations are where quotes spread widest. Two agencies can both sound reasonable while scoping different amounts of SEO, QA, and integration work.

Complex migration

• Source platform with deep customisation (Magento, heavily extended WooCommerce, BigCommerce with custom apps)
• ERP, 3PL, POS, or accounting integrations that must stay live
• B2B pricing, wholesale portals, or company-account logic
• Multi-store, multi-region, or Shopify Markets setup
• Large redirect map spanning products, categories, blogs, and campaign URLs
• Custom checkout requirements or Shopify Plus feature work

Complex projects need longer discovery, written assumptions, and staged QA. Fixed-price quotes here only make sense after a proper audit — not from a homepage contact form.

What should be included in a proper migration quote?

A serious proposal should read like a scope document, not a one-line estimate. At minimum, ask for:

• Platform audit — entity counts, data quality notes, integration inventory
• Data migration scope — products, variants, customers, orders, gift cards, discounts
• Mapping rules — how categories, tags, metafields, and custom attributes translate
• SEO redirect plan — URL inventory, redirect rules, exceptions, and testing approach
• Theme/build scope — what is reused, rebuilt, or net-new
• Integration scope — each system, sync direction, launch dependency, and owner
• QA checklist — checkout paths, discounts, tax, shipping, subscriptions, admin workflows
• Launch plan — cutover window, DNS steps, rollback criteria
• Post-launch support — duration, response expectations, and what counts as a defect vs change request
• Exclusions and assumptions — what is explicitly not included and what the client must provide

If two quotes differ in price but one omits redirect mapping or subscription migration, they are not comparable — even if the headline number looks attractive.

Hidden costs buyers miss

Budget conversations often stop at agency fees. These recurring or follow-on costs catch teams off guard:

• App subscriptions — reviews, subscriptions, search, loyalty, ERP connectors
• Premium theme or custom build — separate from migration labour
• Data cleanup — deduplicating SKUs, fixing attributes, normalising collections
• Product image cleanup — missing alt text, inconsistent sizes, broken CDN paths
• Missing metadata — SEO fields, structured data, variant-level attributes
• Redirect mapping — often under-scoped when treated as an afterthought
• Subscription migration complexity — customer comms, billing alignment, failed-payment edge cases
• Custom reports — replacing legacy admin or ERP reports Shopify does not replicate out of the box
• Post-launch support — fixes discovered under real traffic and order volume
• Staff training — merchandising, CS, and fulfilment teams learning new workflows

Plan for platform fees, apps, and at least a short stabilisation window after launch — not just the migration project itself.

Questions to ask before accepting a migration quote

Use this checklist when reviewing proposals side by side:

• Is SEO redirect mapping included — and how will redirects be tested?
• Are customer accounts and order history included? To what depth?
• Are active subscriptions included, or only product/customer data?
• Are product reviews and UGC included?
• Are metafields and custom attributes mapped?
• Is structured QA included, or only “we will test checkout”?
• Is post-launch support included? For how long?
• Is this fixed price or hourly? What triggers a change order?
• What happens if scope changes after discovery?
• What is explicitly excluded?

Written answers matter. Verbal assurances do not survive the first integration surprise.

Fixed price vs hourly

Hourly work can be appropriate for small advisory tasks or unclear discovery phases. For full migrations, hourly billing shifts risk to the buyer: scope creep, unclear deliverables, and invoices that grow as data problems surface.

Fixed-price delivery is safer for clients only when the scope is defined first — through an audit that counts entities, maps integrations, and documents redirect complexity. A fixed price without that groundwork is often just a guess with a confident label.

Some agencies offer a paid audit that credits toward delivery if you proceed. That model aligns incentives: the audit produces the artefacts both sides use to agree on scope.

Should you choose the cheapest quote?

For a very small, clean store with few indexed URLs and no integrations, a lower quote can be reasonable — especially if the scope is written clearly and SEO work is not hand-waved away.

For stores with search rankings to protect, order history support teams rely on, active subscriptions, or ERP dependencies, under-scoping is usually more expensive later. Redirect gaps, broken subscription billing, and missing metafields cost more to fix in production than to scope properly upfront.

Compare quotes on included deliverables, not headline price alone. The WooCommerce to Shopify Migration Playbook shows how platform-specific complexity shows up in real projects. If you want scope reviewed before comparing numbers, request a free migration audit.

How to compare agency quotes fairly

Ask each agency to price the same scope document. If you do not have one yet, start with a migration audit and use the output as the comparison baseline. Align on order-history depth, subscription handling, redirect coverage, theme approach, integration cutover, and post-launch support before treating any number as final.

When proposals arrive, line up exclusions next to inclusions. The cheapest quote often wins on paper by omitting the work that prevents launch-week emergencies.