Shopify Plus Migration Cost: 2026 Pricing Breakdown

If you've started requesting quotes for a Shopify Plus migration, you've probably noticed something frustrating: the numbers are all over the map. One agency quotes $15,000. Another comes back at $150,000. A third won't give you a number at all until you've sat through three discovery calls.

That spread isn't agencies being cagey; it reflects how differently migrations get scoped. A Shopify Plus migration cost of $20,000 and one of $200,000 can both be "correct," because they're solving completely different problems.

Not sure where your project lands? Whether you're migrating from Magento, BigCommerce, WooCommerce, or another legacy platform or moving from standard Shopify up to Plus — Request a FREE Shopify Plus migration cost assessment and we'll give you a real, scoped number based on your actual catalog, integrations, and compliance needs, not a generic range.

This guide breaks down exactly what drives Shopify Plus migration cost in 2026, what you should expect to pay based on your business size, where agencies and platforms actually make their money, and just as importantly what most quotes leave out until it's too late to budget for it.

We've built this from real project work: migrations, replatforms, and carve-outs we've scoped and delivered for brands ranging from mid-market DTC labels to Nasdaq-listed manufacturers, so the numbers below reflect what's actually landing on invoices in 2026, not theoretical price sheets.

What Actually Determines Shopify Plus Migration Cost

Before you can budget for a migration, you need to understand which variables move the price because "how much does a Shopify Plus migration cost" is really four smaller questions bundled into one.

1. SKU Count and Catalog Complexity

Product volume alone doesn't drive cost as much as people assume - it's product complexity that does. A 500-SKU catalog with simple variants (size, color) migrates in a fraction of the time of a 500-SKU catalog with nested B2B pricing tiers, custom attributes, configurable bundles, or multi-currency price lists.

What actually adds cost here:

Custom meta fields that need to be mapped and rebuilt
Complex variant structures
Product data scattered across multiple systems (PIM, ERP, spreadsheets) that needs to be reconciled before it even touches Shopify
Historical order and customer data that needs to migrate alongside the catalog

2. Integrations

This is usually where quotes go from "reasonable" to "why is this so expensive." Every third-party system your store talks to ERP, WMS, PIM, CRM, tax engine, loyalty platform, subscription tool, freight calculator needs to be re-integrated, tested, and validated against Shopify Plus.

A store with just Shopify + a payment gateway is a very different build than one wired into NetSuite, a 3PL, a custom quoting tool, and a legacy EDI feed for wholesale purchase orders. We've seen integration work alone account for 30% of total project cost on B2B and industrial migrations, where ERP and inventory sync tends to be non-negotiable.

3. Custom Features and Theme Complexity

A stock Shopify Plus theme with light customization costs a fraction of a fully custom-built storefront. Custom features that meaningfully increase cost include:

Custom checkout extensions (Shopify Functions, Checkout UI extensions)
B2B/wholesale portals with tiered pricing, net terms, and approval workflows
Custom quoting or configurator tools
Advanced personalization or search/merchandising logic

4. Data Volume and Historical Migration

Customer accounts, order history, reviews, subscriptions, and gift card balances all need a migration strategy. Some businesses choose to migrate everything; others archive old data and start fresh on Plus. Full historical data migration especially years of order history tied to a loyalty or subscription program adds meaningful QA time that's easy to underestimate.

Typical Shopify Plus Migration Cost by Business Size (2026)

These ranges reflect what real, properly-scoped projects cost in 2026 — not entry-level "theme swap" quotes that leave out integrations and QA.

SMB (Under $3M revenue, simple catalog, 1-3 integrations)

Typical range: $15,000 – $35,000

This tier covers straightforward migrations: existing Shopify or WooCommerce/BigCommerce store moving to Plus, a clean catalog, standard checkout, and a handful of integrations (email marketing, reviews, basic ERP or accounting sync).

Timeline is usually 8-10 weeks.

Mid-Market ($3M – $10M revenue, moderate complexity, B2B elements, multiple integrations)

Typical range: $45,000 – $75,000

This is where most of the real work happens for growing brands. A typical project in this tier involves a full redesign paired with the migration itself and the spread within this range is driven almost entirely by scope. The lower end usually reflects a more contained project without a full redesign layered on top, while the higher end includes additional app integrations, and a more extensive UX and app audit.

Brands in this tier are also often introducing their first real B2B or wholesale functionality alongside the migration — tiered pricing, net terms, or a basic distributor portal — which pushes cost toward the top of the range even without a full redesign.

Timeline is usually 12 to 15 weeks

Enterprise ($10M+ revenue, complex B2B/wholesale, ERP integration, multi-market, custom features)

Typical range: $75,000+

Enterprise migrations typically involve deep ERP integration, custom B2B/wholesale functionality, multi-currency and multi-market storefronts. A multi-market website migration to Shopify operating across a dozen-plus countries, with the tax, currency, and regional-team coordination that comes with it sits firmly in six-figure territory.

Larger B2B/industrial brands also tend to land at the higher end of this range, largely due to integration depth (ERP, distributor portals, quoting systems) rather than storefront design complexity.

Timeline is usually 15+ weeks

Agency Fees vs. Platform Fees vs. App/Integration Costs

Every Shopify Plus migration quote is really three separate cost buckets. Understanding the split helps you evaluate whether a quote is complete or quietly deferring cost to later.

Platform fees (Shopify): Shopify Plus platform pricing is typically a flat monthly fees + transaction fees depending on your plan and negotiated terms with Shopify. This is separate from and doesn't include any migration or build work.

Agency fees: This covers discovery, data migration, theme/storefront development, integration builds, QA, training, and project management. For most mid-market and enterprise projects, agency fees represent 60-80% of total project cost, since this is where the actual engineering, data reconciliation, and testing happens.

App/integration subscription costs: Beyond the one-time build cost, most stores end up running paid apps post-migration (subscriptions, reviews, personalization, help desk, loyalty, tax, shipping). These are recurring monthly costs, typically ranging from a few hundred to thousand dollars per month combined, depending on store volume. This is the bucket most businesses underestimate when budgeting past year one.

What's Often Left Out of Shopify Plus Migration Quotes

This is the section that saves you money. Based on projects we've scoped and, in some cases, been brought in to rescue after another agency's quote fell short, here's what commonly gets left off the initial number:

Content migration and cleanup. Moving product descriptions, blog content, and SEO metadata is often assumed to be "included" but frequently isn't scoped in detail and content debt from years of legacy CMS work adds real hours.
Redirect mapping and SEO preservation. A migration without a full 301 redirect strategy can quietly tank your organic traffic for months. This needs dedicated SEO scoping, not an afterthought.
Post-launch QA across devices, browsers, and edge-case customer accounts. Everyone tests the happy path. Few quotes account for the hours needed to catch the edge cases in international tax rules, B2B account permissions, or subscription renewals.
Staff training and documentation. Someone on your team has to actually run this store after launch. Training time is routinely underscoped or assumed to be "self-serve."
App licensing costs post-launch. As above the one-time build quote rarely reflects the ongoing monthly app stack cost.

How to Budget Realistically for a Shopify Plus Migration

Separate one-time build cost from ongoing platform and app costs. Budget for Shopify Plus platform fees and your app stack as a recurring monthly line, not a footnote in the migration quote.
Add a contingency of 10%. Data migrations almost always surface something unexpected legacy data quality issues, an integration that behaves differently in production, a compliance requirement that wasn't on anyone's radar at kickoff.
Budget for SEO and redirect strategy explicitly. If organic traffic matters to your revenue, this isn't optional treat it as its own line item with its own owner.
Factor in your business tier honestly. If you're a $30M B2B brand with ERP integration and wholesale pricing tiers, don't budget like an SMB doing a theme swap even if your catalog is small.

Get an Accurate Shopify Plus Migration Cost Estimate

Generic pricing ranges are a starting point, not a quote. The real number for your business depends on your specific catalog, integrations, compliance needs, and growth plans and the only way to get an accurate figure is a proper scoping conversation.

We've delivered 200+ Shopify builds and migrations since 2015, across SMB, mid-market, and enterprise B2B/industrial brands, including full carve-outs and multi-market Plus transitions. If you want a free, no-obligation migration cost estimate based on your actual store, catalog, and integration stack, reach out to us at Ecommerce Pro and we'll walk you through exactly what your project should cost — and what shouldn't be missing from your quote.