Reporting + data·2026-04·1 min read

Your TikTok Shop ROAS Is Probably Hiding the Real Margin Problem

ROAS can look acceptable while margin is already broken, because fees, commissions, and ad costs are often tracked separately instead of as one per-order reality.

A lot of TikTok Shop performance reviews focus on ROAS as the headline number. The problem is that ROAS by itself does not tell you whether the order economics are actually healthy once platform fees, affiliate commissions, and ad spend all land together.

That gap creates false confidence. Teams can celebrate a passable ROAS while per-unit profit is quietly eroding, then spend weeks adjusting creative or bids when the bigger issue is the margin structure underneath.

A focused calculator is useful here because it forces everything into one view. The question shifts from "did the campaign perform?" to "does this order still make money?"

ROAS is a signal. Margin is the decision.

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E-Commerce Utility Calculators

A compact calculator suite built to answer practical e-commerce questions quickly: true per-unit profit and break-even ROAS for TikTok Shop, the fee tipping point between Etsy and Shopify, and landed-cost calculations for UK import duty and VAT.

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