How to Calculate True Profit on Shopify

What Shopify’s reports leave out

Shopify’s analytics are built around sales: orders, revenue, customers. It can show a margin where you have entered a cost per item, but most of what separates sales from profit lives outside the store.

• Cost of goods you have not entered, or entered once and never updated when your supplier’s price changed.
• Shipping you actually paid. The amount a customer was charged for shipping is not the amount the courier or label cost you.
• Payment and transaction fees, which differ by gateway, country and plan, and are charged even on orders you later refund.
• Ad spend on Meta, Google and TikTok, which sits in other dashboards entirely.
• Returns and lost goods: a refund gives the customer their money back but does not give you back the courier charge or the stock you cannot resell.
• Currency conversion, if you sell or advertise in more than one currency.

The formula

Work in two layers. First the order, where every cost belongs to a specific sale. Then the period, where ad spend and overheads belong to the month rather than to any one order.

net profit = revenue           − cost of goods           − shipping you paid           − payment and platform fees           − discount given           − amount refunded

true net profit = profit on all earned orders                 − ad spend                 − operating expenses

Step 1: get the cost of goods right

Use what each unit really cost to land in your warehouse, not the supplier’s invoice price: product, freight, customs duty, insurance and packaging. If you buy the same product at different prices, use a blended weighted-average cost. The landed cost guide walks through both with numbers.

Step 2: use the shipping you paid

Take the courier’s or carrier’s actual charge for each parcel: from the label, the carrier invoice, or the courier’s own tracking data. Surcharges and weight adjustments are real costs. Charging a customer $4 for shipping that cost you $6 is a $2 loss on every order.

Step 3: take the fees the platform really charged

Payment processor fees usually combine a percentage and a fixed amount per transaction, and may be higher for international cards or other currencies. Read them from your payout reports rather than assuming a rate.

Step 4: treat ad spend as a period cost

Ad spend cannot be divided fairly between orders: customers see an ad, return later and buy through another channel. Subtract it for the period and judge campaigns by profit after ads and break-even ROAS. See break-even ROAS explained.

Step 5: count what returns cost

A refund reduces profit by the amount refunded, and a returned parcel usually leaves you paying the courier both ways. If the goods go back on the shelf you recover their cost; if they are damaged you do not. What a return really costs breaks down each part.

A worked example

Doing it in a spreadsheet, or not

A spreadsheet can do all of this for one store at low volume. It gets hard when costs change, when you sell on more than one channel, or when returns and ad spend arrive late. Spreadsheet or profit software says honestly where the line is.