"Should we be on Plus?" usually arrives wrapped in something else: a checkout you can't customise the way you want, a wholesale channel held together with discount codes, or a Black Friday that nearly fell over. Plus is a real step up in capability, and a real step up in cost. The question worth answering isn't "is Plus better" (it is), it's "are you actually hitting the ceiling of the plan you're on?"
Here's how I work that out with a merchant.
What you're really paying for
Plus is roughly a £1,800+/month commitment, so it only makes sense if you'll use the things it unlocks. The ones that actually move the needle:
- Checkout extensibility. Custom checkout UI, more Shopify Functions, and the headroom to do things the standard checkout won't.
- B2B / wholesale, natively. Company accounts, per-customer catalogs and price lists, payment terms. If you're faking this with a second store or a pile of codes, this is the headline feature.
- Multiple stores. Up to ten storefronts under one plan, which is where international and multi-brand setups stop being a tax.
- Higher API limits and Flow. More automation, fewer rate-limit walls, and the room to build the integrations that a busy operation leans on.
If none of those map to a problem you have right now, you're paying for a tier you won't use.
The signals that say yes
I lean towards recommending Plus when I see:
- Checkout is the blocker. You need fields, logic, or branding at checkout that only Plus allows, and it's costing you conversions or operations time.
- B2B is a real channel, not an experiment. Different buyers, different prices, net terms, repeat ordering. Bolting this onto a standard store gets fragile fast.
- You're running, or about to run, multiple storefronts. Separate regions, currencies, or brands. Ten stores on one plan beats ten plans.
- Volume is straining the limits. Webhook throughput, API calls, or sales spikes that the current tier throttles.
- The Plus cost is small next to the revenue it protects. At the right volume, the fee is rounding error against a single peak-season day.
The signals that say not yet
Just as often, the honest answer is stay where you are and spend the money on the store itself. Hold off when:
- The pain is theme or app shaped, not platform shaped. A lot of "we need Plus" turns out to be "we need the theme fixing" or "we need one custom app." Both are far cheaper.
- You want Plus mainly for checkout branding vanity rather than a measured conversion problem.
- Your volume is comfortably inside standard plan limits.
- Nobody on the team will actually use Flow, B2B, or the extra stores. Unused capability is just cost.
A rough decision table
The shorthand I run through:
| What's driving it | Stay on current plan | Move to Plus |
|---|---|---|
| Theme limitations / bugs | ✅ fix the theme | overkill |
| One piece of custom logic | ✅ a Function or small app | overkill |
| Checkout customisation Shopify blocks below Plus | ❌ | ✅ |
| Real B2B with price lists and terms | ⚠️ painful | ✅ |
| Multiple regional / brand storefronts | ⚠️ multiple plans | ✅ |
| API limits or peak-traffic throttling | ❌ | ✅ |
The pattern: if the problem lives in your theme or an app, Plus is the expensive way to solve it. If it lives in the platform's own ceiling, that's exactly what Plus is for.
A concrete example
A merchant came to me certain they needed Plus because wholesale was "a mess." Digging in, two different problems were tangled together.
- The retail checkout was fine. No Plus-only feature was actually required there.
- The wholesale side genuinely needed company accounts, per-customer pricing, and net-30 terms. That is squarely B2B on Plus, and no amount of theme work fakes it cleanly.
So the move was justified, but for one specific reason, not the vague sense that a bigger store needs a bigger plan. Naming the real driver is what turns it from a £22k/year guess into a decision.
The honest trade-off
Plus buys you capability and headroom. It does not, on its own, make you more money. The merchants who get value from it are the ones who had a concrete platform ceiling and a plan to use what's on the other side of it. The ones who regret it upgraded on a feeling and kept the same store.
So my default is: prove the ceiling first. If the thing you want is genuinely Plus-only and it's costing you real revenue or real hours, the upgrade pays for itself quickly. If it's a theme, an app, or a tidy-up, do that and keep the cash.
If you're weighing it up, send me what's pushing you towards Plus and I'll tell you straight whether it's a platform problem or a build problem. Working out which one it is usually saves more than the call costs.
Written by Charles Marsh, who runs EC Web. Get in touch or book a chat.