Shopify Plus Agency Pricing in 2026: What It Actually Costs

Q: Do agencies charge more just because a store is on Shopify Plus?

Some do — a Plus tax with no extra work behind it. We don't: our rate is the same $30–50/hr as standard Shopify. What actually costs more on Plus is the work itself, not the platform tier.

Shopify Plus agency work in 2026 runs $30–50/hr for development, $6,000–30,000 for a full Plus migration or replatform, and $2,000–6,000/month for an ongoing Plus retainer. MILEDEVS is a Shopify Select Partner — Plus-tier work is billed at the same transparent $30–50/hr rate as standard Shopify. No markup for the badge.

If you're scoping a Shopify Plus project — migration, checkout customization, B2B storefront, or ongoing dev support — this page gives you the real cost ranges and what drives them up or down, before you get on a call with anyone.

Shopify Plus project costs at a glance

Engagement	Typical cost	Depends on
Plus migration / replatform	$6,000–30,000	Catalog size, custom checkout, systems to integrate
Checkout UI extension / Shopify Function	$1,500–8,000	Number of rules, custom UI vs. logic-only
B2B storefront setup	$2,500–10,000	Number of catalogs/price lists, quoting workflow
Multi-market / multi-currency setup	$1,000–4,000	Number of markets, localized content vs. currency-only
Ongoing Plus retainer	$2,000–6,000/mo	~40–120 hours/month, response-time SLA tier

Numbers assume a $30–50/hr specialist rate. A US/UK agency quoting the same scope typically runs 2–4× higher for comparable output — see the full breakdown on hiring a Shopify developer.

What actually moves Plus pricing

Checkout customization depth. A logic-only Shopify Function (shipping rate rules, payment customization) is cheaper than a full checkout UI extension with custom fields and validation.
Catalog and market count. One catalog, one currency is the cheap end. Multiple B2B price lists across multiple markets multiplies QA time, not just build time.
What you're migrating from. Plus-to-Plus replatforms are the simplest case. Coming off Magento Enterprise, BigCommerce Enterprise, or a heavily customized legacy Plus store adds data-mapping and redirect work — see Shopify migration services for platform-specific numbers.
Integrations. ERP, PIM, and 3PL connections are usually the long pole, not the storefront itself.

Agency vs. in-house for a Plus store

An in-house Plus developer runs $60k–110k/year plus benefits and recruiting time — worth it once you have daily, ongoing dev needs at scale. Below that, an agency at $30–50/hr covers Plus-specific work (checkout extensibility, Functions, B2B, Flow automation) without the hiring risk or the idle-time cost of a full-time seat. The full agency-vs-freelancer-vs-in-house math, including where the break-even sits, is on our hire a Shopify developer page.

How MILEDEVS prices Plus work

We're a Shopify Select Partner. Plus engagements get the same process as any project on our case list: a scoping call, a fixed estimate before anything starts, development on a theme copy with your approval before publishing, and QA before handoff. We run an AI-augmented workflow for PM, development and QA, which is why Plus estimates — even migrations — come back in days, not weeks.

Scoping a Shopify Plus project?

Send us what you're planning — migration, checkout customization, B2B — and we'll reply with a fixed estimate and timeline within 48 hours. Free, no commitment.

Get a Plus project estimate

Shopify Plus Pricing FAQ

How much does a Shopify Plus migration cost?

Most Plus migrations run $6,000–30,000 depending on catalog size, how much custom checkout logic you need, and how many systems (ERP, PIM, 3PL) it has to integrate with. A simple Plus-to-Plus replatform lands at the low end; a multi-market B2B catalog with a custom checkout pushes it higher.

Is Shopify Plus agency work billed hourly or as a fixed price?

We quote a fixed estimate per project after a scoping call, priced against an hourly rate of $30–50/hr behind the scenes. You see the total before work starts — open-ended hourly billing is how Plus budgets blow up.

Do agencies charge more just because a store is on Shopify Plus?

Some do — a "Plus tax" with no extra work behind it. We don't: our rate is the same $30–50/hr as standard Shopify. What actually costs more on Plus is the work itself — checkout UI extensions, Shopify Functions, B2B catalogs — not the platform tier.

How long does a Shopify Plus migration take?

4–10 weeks for most stores: 1–2 weeks discovery and data mapping, 2–5 weeks build, 1–3 weeks QA and staged cutover. Multi-market or B2B builds run longer.

What's included in an ongoing Shopify Plus retainer?

Typically 40–120 hours/month covering checkout and Functions maintenance, new feature builds, app and API upgrades, and a response-time SLA. See hiring a Shopify developer for how retainer hours compare to one-off task pricing.