Marjn BlogShopify profit & margin

Shopify Profit & True Margin Guides

By Vladislav Gerasimchuk · Extensions Market

Why revenue is not profit, how to calculate your true margin with landed cost and ad spend, break-even ROAS, and why the products you sell most might be losing you money. Written for Shopify merchants running paid ads.

Profit12 min readAugust 21, 2026

Why Is My Shopify Store Not Profitable? The Real P&L Breakdown

Revenue is up but the bank account is not. The full line-by-line P&L of a Shopify order, from the gross sale down to what is left, with real 2026 numbers.

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Ad spend10 min readAugust 21, 2026

Why a 3.8 ROAS Still Lost $1,082: The Break-Even ROAS Trap

A great-looking ROAS that lost money, explained line by line, plus the break-even ROAS formula that tells you your real floor per product.

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Margin10 min readAugust 21, 2026

Your Bestseller Is Your Biggest Loser: The Hidden Margin Trap

The products you promote hardest carry the heaviest discount and ad load, so a bestseller can lose money on every sale. Why it happens and how to spot it.

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