Selling Haircare on Marketplaces vs Your Own Store: A Margin Comparison

What the comparison is designed to show

This comparison is designed to answer one question: after the costs caused by a single sale through a channel, how much remains to absorb fixed overhead and profit?

Contribution margin starts with realised revenue from a delivered order, excluding cancelled and returned orders. Subtract the variable costs attributable to that order: product cost (COGS), fulfilment, packaging, postage, payment fees, channel charges, merchant-funded discounts and any irrecoverable tax or duty. The remainder is contribution profit; divide it by realised revenue to get contribution margin. Keep channel costs separate from product and fulfilment costs. Product costs show whether the item has sound economics; channel costs show what the route to the customer consumes. VAT collected is generally not income, so it should not inflate revenue. Use the same definitions for both routes, then compare what changes because of the channel rather than comparing sales alone. The profit margin calculator can check the arithmetic before you apply it to order data.

What each channel charges

Use labelled assumptions, not implied industry rates. For a marketplace, model a percentage commission on the item and shipping value if the contract applies it, a separate payment charge where applicable, listing or subscription fees, marketplace-funded or merchant-funded refunds, and fulfilment or storage charges. Treat commission and payment charges as variable costs: they are the right measures when deciding whether a product can support its selling price. Treat subscriptions and listings as fixed or order-independent costs unless the fee changes with volume.

An owned Shopify store removes marketplace commission but still has payment processing, the store plan, apps, fulfilment, packaging, refunds and any delivery subsidy. Label each assumption by billing basis: percentage of collected revenue, per order, per item, monthly, or per shipment. A monthly plan should be allocated across the orders in the period; otherwise low-volume months look more profitable than they are. Include VAT treatment consistently for a UK business: a business must register when taxable turnover for the last 12 months goes over £90,000, the VAT threshold (GOV.UK, HM Revenue & Customs) (Source: GOV.UK (HM Revenue & Customs)).

The same order through both channels

Use one identical delivered order to compare selling haircare on marketplaces vs your own store: the same SKU, quantity, selling price, discount, customer-paid shipping and destination. Apply the same VAT treatment and product-cost basis to both channels. Count revenue only when the order is delivered, then subtract the costs caused by fulfilling that order. Keep marketplace commission, payment processing and store platform fees as separate labelled assumptions rather than burying them in one rate.

The contribution margin is the amount left after these variable costs. It is not net profit: fixed overheads and costs outside checkout are dealt with separately. Follow the separately added worked example for the arithmetic, then replace its inputs with your own order data. You can also test the resulting inputs in the profit margin calculator.

Costs that sit outside the checkout

Beyond checkout fees, include product, packaging, pick-and-pack, variable service/payment costs, channel charges, discounts as reduced realised revenue, and returns: refund value plus unrecovered postage, packaging and handling, or an expected allowance before channel history exists.

Separate acquisition: assign supported ad spend to orders, but track total marketing because MER and attributed ROAS differ; marketplace discovery may lack clean matching, while own stores may rely on paid traffic. Track inventory holding, dead stock and stock value by product/period; assess repeats by customer/cohort, keeping later-order profit separate from a low first-order contribution. Use a profit margin calculator.

Where each channel fits

A marketplace may fit when reach is the constraint. Shoppers already browsing there can make discovery easier than building demand from scratch, particularly for products with clear search intent or recognised use cases. Marketplace-led fulfilment options may also reduce operational work where they are available and suitable for your service requirements. The trade-off is less control over how the product appears, how the customer experiences the purchase, and how the order relationship develops.

An owned store may fit when control and customer development matter more. You can shape merchandising through bundles, routines, education, cross-sells and offers, then manage the buying journey around your brand rather than a marketplace layout. You also have more scope to build an ongoing customer relationship through your own store and measure repeat behaviour in that context. That flexibility comes with responsibility for attracting shoppers and arranging fulfilment.

Some UK haircare businesses use both: a marketplace for discovery and incremental reach, and an owned store for brand-led merchandising and retention. Treat each channel as a separate route to market, with its own order mix, repeat behaviour, fulfilment workload and profitability.

How to read the comparison for your store

Use contribution margin to test channel economics before fixed overhead. A £30 order with £12 product cost, £2 packaging and fulfilment, £4 marketplace commission and £3 advertising leaves £9 contribution (£30 − £21), or 30%. Compare your own-store result using the same cost definitions, not the headline selling price. A profit margin calculator can check the arithmetic. Use order-level cash impact to judge whether an order is worth taking or funding. Include cash collected, discounts, fees and variable fulfilment costs: a sale producing £9 contribution can still require £17 upfront for stock and fulfilment before payout. Keep timing and refunds separate from margin. Use repeat-purchase assumptions only for acquisition or channel-investment decisions. If a first order loses £2 but a realistic second order contributes £10, two-order customer value is £8 before acquisition cost. Test cautious, base and optimistic repeat rates; do not scale on an unproven assumption. Match the measure to the decision: margin for economics, cash impact for liquidity, and repeat value for retention investment.

A marketplace and an owned store can produce different economics from the same haircare order. Use the comparison to identify which charges and operating costs are certain, which are assumptions, and which channel-level measures need separate tracking before changing your sales mix.