How to Calculate Shopify Store Net Profit Including All Fees

Key Takeaways

Shopify's Basic plan charges a 2% transaction fee on every sale processed outside Shopify Payments, on top of your payment gateway's own fee.
A seller doing $10,000/month in revenue on the Basic plan with a third-party gateway loses $200/month to Shopify transaction fees alone, $2,400/year gone before any other cost.
Net profit equals revenue minus cost of goods sold, minus payment processing fees, minus Shopify subscription and app costs, minus shipping and fulfillment costs, minus advertising spend, minus returns and chargebacks.
Tool: Estimate your self-employment tax on Shopify net profit →

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The Core Net Profit Formula for a Shopify Store

Net profit for a Shopify store equals revenue minus every cost layer between the sale and your bank account. Most sellers stop their math at cost of goods sold and wonder why their margins look wrong.

The complete formula, written in plain terms:

Net Profit = Gross Revenue - Cost of Goods Sold (COGS) - Payment Processing Fees - Shopify Subscription Fee - App Subscription Fees - Shipping and Fulfillment Costs - Advertising Spend - Returns and Chargebacks

Each of those line items is a variable with a specific rate or dollar amount you can pull from your Shopify dashboard, your ad accounts, and your fulfillment invoices. None of them are estimates. Run this against your actual monthly data, not a ballpark.

Shopify Platform Fees: What You Actually Pay Per Plan

Shopify's monthly subscription cost is the visible fee. The hidden cost is the transaction fee, which only disappears if you use Shopify Payments as your processor.

As of 2025, Shopify's three main plans carry these transaction fees for external payment gateways:

Basic ($39/month): 2.0% per transaction
Shopify ($105/month): 1.0% per transaction
Advanced ($399/month): 0.5% per transaction

If you use Shopify Payments, the transaction fee drops to zero. But Shopify Payments still charges credit card processing rates: 2.9% plus $0.30 per online transaction on the Basic plan, stepping down to 2.4% plus $0.30 on the Advanced plan.

A seller processing $30,000/month through a third-party gateway on the Basic plan pays $600/month in Shopify transaction fees. Switching to the Advanced plan at $399/month eliminates that fee entirely. The plan upgrade pays for itself before the first card swipe.

Worked Example 1: Basic Plan Seller With Third-Party Gateway

A Shopify store generates $8,500 in gross revenue in a single month. Here are the actual costs:

COGS (products purchased wholesale): $3,200
Shopify Basic plan: $39
Third-party gateway fee (Stripe, 2.9% + $0.30 per transaction, 140 orders): $289.00
Shopify transaction fee (2% on $8,500): $170
App subscriptions (email marketing, review app, upsell app): $87
Shipping and fulfillment: $620
Meta Ads spend: $950
Returns processed (3 orders, avg $42 product cost): $126

Total costs: $5,481

Net Profit: $8,500 - $5,481 = $3,019

Net profit margin: $3,019 / $8,500 = 35.5%

This looks reasonable. Notice that Shopify's transaction fee alone consumed $170 of profit this seller did not account for when they priced their products. At the same revenue level, switching to Shopify Payments eliminates the $170 Shopify fee. The Stripe-equivalent rate on Shopify Payments Basic is 2.9% + $0.30, so the processing cost stays near the same. The $170/month stays in the business.

Worked Example 2: Growing Store on the Shopify Plan Weighing an Upgrade

A store doing $45,000/month in revenue uses the Shopify plan at $105/month with Shopify Payments. Processing costs at 2.6% + $0.30 on 380 orders run approximately $1,284/month.

Upgrading to the Advanced plan at $399/month drops the Shopify Payments rate to 2.4% + $0.30. On $45,000 in revenue across 380 orders, that rate produces approximately $1,194/month in processing costs.

The processing savings equal $1,284 - $1,194 = $90/month. The plan upgrade costs $399 - $105 = $294/month more. At this volume, the upgrade costs a net $204/month more than it saves. The break-even point sits at roughly $146,000/month in revenue where the 0.2% rate reduction saves enough to offset the higher plan cost.

Before switching plans, calculate your break-even revenue where processing savings offset the higher plan cost.

App and Tool Costs Are a Real Line Item

The average active Shopify store uses 6 paid apps, according to Shopify's own ecosystem data. Monthly app costs typically range from $80 to $400 depending on store complexity.

Common paid apps and their approximate monthly costs:

Klaviyo (email and SMS marketing): $45 to $400+ depending on subscriber count
Okendo or Judge.me Pro (reviews): $19 to $119
ReConvert (post-purchase upsell): $29 to $99
Gorgias (customer support): $10 to $60 per agent
ShipStation or EasyPost (fulfillment management): $30 to $159

A seller paying $280/month in apps on $8,500 in revenue is giving up 3.3% of gross revenue before a single product ships. Price your products with this friction accounted for.

How Returns and Chargebacks Hit Net Profit

Returns and chargebacks reduce net profit at full product cost, not just at margin. When you sell a $60 product at a $30 margin and a customer returns it, the cost is not $30. You absorb the restocking, repackaging, and shipping fees on top of any partial refund issued.

A standard chargeback also triggers a dispute fee from your payment processor. Stripe charges $15 per disputed charge. Shopify Payments charges $15 per chargeback. Win or lose the dispute, that fee is often non-refundable.

At a 3% return rate on 380 orders averaging $118/order, a store processes roughly 11 returns/month. If each returned order costs $22 net in reverse logistics and processing, that adds $242/month in costs most sellers never enter into their profit model.

Advertising Spend Belongs in Profit, Not in a Separate Bucket

Net profit must include all paid traffic costs. Many Shopify sellers report gross margin excluding ad spend, then treat Meta or Google Ads as a separate business function. That is a reporting error.

Ad spend belongs in the net profit formula. A store with a 55% gross margin and a 35% advertising-to-revenue ratio produces a 20% gross profit before platform fees, apps, and fulfillment. After those, true net profit frequently drops to 10 to 18%.

Calculate your true blended Customer Acquisition Cost (CAC) by dividing total ad spend by total new customers in the same period. If CAC exceeds your average gross profit per order, each new customer sale operates at a loss.

Run Your Actual Numbers With the CalcMoney Calculator

Once you know your Shopify net profit figure for the month, the next immediate question is your self-employment tax liability. As a sole proprietor or single-member LLC, you owe 15.3% self-employment tax on net earnings, plus federal and state income tax on top.

On $3,019/month net profit, annualized to $36,228, self-employment tax alone runs approximately $5,543 before any income tax liability. That number changes based on your deductible business expenses, your SE tax deduction, and your qualified business income deduction eligibility.

The CalcMoney self-employment tax calculator uses your Shopify net profit as the input and returns your estimated SE tax, your deductible half of SE tax, and your net taxable self-employment income. Enter your monthly or annual net profit figure to see exactly what you owe before the IRS does.

Results are estimates for informational purposes only. Consult a licensed financial professional before making financial decisions.

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