What's the actual breakeven point where a dedicated B2B expansion store starts making more sense than a blended single store?

The reason nobody can give you a revenue threshold

Every version of this question we get asked assumes there is a wholesale-revenue figure above which the second store pays for itself. There cannot be one on Plus, because the second store does not cost anything on the axis the question is measuring.

Shopify's expansion store documentation lists B2B wholesale stores among the store types that are "automatically eligible" for a Plus contract, with the note "Limit of one free B2B store per contract" (per Shopify Help Center, September 2026). The Plus plan includes "One main store. Nine expansion stores" at no additional cost (per Shopify Help Center and shopify.com/plus/pricing, September 2026).

So on Plus, the incremental platform fee of going dedicated is $0. A breakeven analysis of a $0 line item has no crossing point. The costs are real, and they are all somewhere else.

Where the costs actually are

That table contains the real breakeven and it is not denominated in dollars. It is denominated in duplicated operations. Every recurring cost of a dedicated store is a cost of running two of something, and the only thing that pays for running two of something is genuinely needing two of them.

Shopify's own test, which is better than the revenue framing

Shopify publishes four conditions for each side, and they are worth using verbatim because they are about structure rather than size. Blended works when you "sell similar products to both B2B and D2C customers," "share inventory between your B2B and D2C operations," and "have the same staff managing both B2B and D2C sales." Dedicated fits when you "want a separate B2B experience," "need distinct inventory for B2B and D2C operations," "want to restrict online store access to B2B customers only," or "have different staff managing your B2B and D2C operations" (per Shopify Help Center, September 2026).

Count how many of the dedicated conditions are true of your business. Zero or one, stay blended and spend the money on merchandising instead. Three or four, the second store is not an optimization, it is the correct architecture and you are already paying for its absence in workarounds.

The middle case, two of four, is where the judgment lives, and the tiebreaker we use is the irreversibility line. Shopify says the choice is "not easy to change at a later time." A blended store that later needs to split can split. A dedicated store that later needs to merge has to merge order history, customer records and two sets of app configuration, and that is a project rather than a setting.

The one case where a second store genuinely buys capacity

This is the part the moved plan gate created and almost nothing published in 2026 has caught up with.

Below Plus, "on the Basic, Grow, and Advanced plans, you can assign up to 3 active catalogs across all your B2B markets," and the cap is identical on all three (per Shopify Help Center and shopify.com/pricing, September 2026). The cap is per store. A second Shopify store carries its own allowance of 3.

So for a non-Plus merchant whose only binding B2B constraint is catalog count, there are two ways to buy catalogs:

That is the only honest dollar comparison on this page, and it is not a breakeven so much as a fork. The second store is roughly a sixth of the cost and gives you six catalogs in two places, with two of everything else. Plus costs more and gives you unlimited catalogs in one place, plus the direct company catalog assignment that lets a catalog attach to a company rather than to a B2B market. If your problem is one key account that negotiated its own price, the split-store path does not solve it, because you still cannot attach a catalog to that company below Plus. If your problem is arithmetic, tiers multiplied by currencies exceeding three, the split-store path genuinely solves it at a fraction of the cost.

One 2026 cost of going dedicated that did not exist a year ago

Shopify lists "Agentic storefronts" among the features not compatible with B2B (per Shopify Help Center, September 2026), and Shopify Catalog excludes B2B-only products from syndication automatically when it identifies them through B2B catalogs, authentication requirements or a password-protected storefront (per Shopify Help Center, September 2026).

Read those together and a useful asymmetry appears. A blended store keeps full agentic-channel exposure for its DTC assortment while its B2B pricing stays private, because the exclusion is applied per product rather than per store. A dedicated B2B store, which by design requires login and often runs password-protected, has no agentic exposure at all.

For most brands that is the correct outcome and not a loss, since you were not trying to sell wholesale through ChatGPT. It matters in one specific case: a brand whose dedicated store was going to carry any publicly browsable assortment. That assortment leaves Shopify Catalog when it moves behind the B2B login, and nobody puts that line in the migration plan.

When NOT to go dedicated

• When the real complaint is that the theme looks wrong for wholesale buyers. Contextual storefront and contextual checkout are available on Advanced and Plus (per Shopify plan-features table, September 2026), and the free Trade theme is on every plan. Rebuilding the presentation layer inside one store is cheaper than running two.
• When nobody has counted the apps. Two sets of app subscriptions is the largest recurring line in most of these decisions and the one least often modelled, because apps bill per store.
• When the wholesale assortment is the retail assortment. Shared inventory is the single strongest argument for blended, and splitting stores means inventory stops syncing by default.
• When B2B is not yet operational. If nobody owns collections, terms or the aging report, a second storefront is a second place for the same unowned process to fail.
• When the decision is being made to hide wholesale pricing. Catalogs already do that inside a blended store, and B2B prices are not exposed to DTC shoppers or to Shopify Catalog.