CAC vs LTV
Break-even analysis chart: where revenue meets total costs for ecommerce businesses.

Your break-even point (BEP) is the exact moment where total revenue equals total costs — you're not making a profit, but you're not losing money either. Everything above that point is profit. Knowing your BEP lets you set sales targets, evaluate pricing decisions, and understand when a new product or marketing campaign is actually working.

What Is the Break-Even Point in Ecommerce?

The break-even point is the number of units (or dollar amount of revenue) you need to generate where your total revenue equals your total costs, resulting in exactly $0 of profit.

At the break-even point:

  • Total Revenue = Total Costs
  • Profit = $0
  • Anything above BEP = profit
  • Anything below BEP = loss

Why does this matter for ecommerce? Because running an online store has two types of costs that behave very differently: fixed costs (you pay them regardless of sales volume) and variable costs (they scale with every sale). Understanding the relationship between these costs and your sales price is the foundation of profitable operations.

How to Calculate Break-Even Point (Units and Revenue)

There are two ways to express your break-even point — in units sold, or in total revenue. Both are useful depending on the context.

Key Metric: Break-Even Point in Units

Formula: BEP (Units) = Fixed Costs รท Contribution Margin per Unit

Contribution Margin: Selling Price โˆ’ Variable Cost per Unit

Key Metric: Break-Even Point in Revenue

Formula: BEP (Revenue) = Fixed Costs รท Gross Margin Percentage

Tip: Use to set revenue targets for your team

Fixed costs are expenses that don't change with your sales volume — rent, monthly software subscriptions (Shopify, ERP tools), salaries, Amazon subscription fees, base ad spend budgets. These costs exist whether you make 1 sale or 1,000.

Variable costs are expenses that change with every unit you sell — cost of goods sold (COGS), packaging materials, payment processing fees, shipping costs to customers, and per-unit FBA or platform fees. The more you sell, the more variable costs you accumulate.

Use our free Break-Even Calculator to run these calculations instantly for any scenario.

How to Calculate Break-Even for an Amazon FBA Product

Let's say you sell a kitchen gadget on Amazon at $45 per unit. Here's your cost breakdown:

  • COGS (unit cost from supplier): $18 per unit
  • Amazon FBA fees (fulfillment + referral + closing): ~$14 per unit
  • Variable cost per unit: $18 + $14 = $32
  • Fixed costs (Shopify plan + Amazon account + apps + base ad spend): $2,000/month
Contribution Margin = $45 โ€“ $32 = $13 per unit
BEP (Units) = $2,000 รท $13 = 154 units/month
BEP (Revenue) = $2,000 รท 28.9% = $6,920/month

You need to sell at least 154 units per month to break even on your fixed costs. Every unit above 154 is pure profit (before income taxes).

Now let's look at the same calculation using gross margin percentage:

  • Gross Margin = ($45 โ€“ $32) รท $45 = 28.9%
  • BEP Revenue = $2,000 รท 28.9% = $6,920/month
  • 154 units ร— $45 = $6,930 (minor rounding difference, checks out)

How to Calculate Break-Even for a Shopify Store

Now let's say you run a Shopify store selling private-label apparel. Your numbers look different:

  • Average selling price: $80 per unit
  • COGS: $25 per unit
  • Shipping to customer: $4 per unit
  • Payment processing (Shopify Payments 2.9% + 30ยข): ~$1 per unit on average
  • Total variable cost per unit: $30
  • Fixed costs (Shopify Basic $29/mo + Klaviyo $15/mo + Facebook ad budget $1,500 + shipping labels $200 + software $256): $3,000/month
Contribution Margin = $80 โ€“ $30 = $50 per unit
BEP (Units) = $3,000 รท $50 = 60 units/month
BEP (Revenue) = $3,000 รท 62.5% = $4,800/month

A Shopify store with $80 average order value has a much lower break-even in units (60 vs 154) because the contribution margin is higher relative to the selling price. This is why pricing strategy matters so much — a 10% price increase doesn't just raise revenue, it dramatically lowers your break-even point.

How Do Fixed and Variable Costs Affect Break-Even?

Higher fixed costs = higher break-even point = you need more sales volume before profitability.

This is why launching new products with expensive tools or large ad budgets is risky — you're increasing your fixed cost base before you have the revenue to support it.

Ways to reduce your fixed costs:

  • Use free or cheaper software alternatives (switch from Klaviyo to Mailchimp free tier)
  • Reduce ad spend that's not profitable yet
  • Automate with tools that replace manual labor
  • Consider moving some operations from fixed subscriptions to variable (pay-per-use) models

Ways to increase your contribution margin (which has the same effect as lowering BEP):

  • Raise your selling price (even a 5% price increase can significantly lower BEP)
  • Reduce COGS through supplier negotiation or switching to a more efficient manufacturer
  • Reduce per-unit platform fees (e.g., upgrade Shopify plan to lower transaction fees)

How Can You Lower Your Break-Even Point?

The fastest way to reach profitability is to lower your break-even point. Here are the most effective strategies:

1. Raise Your Prices

A 10% price increase on a product with $25 variable costs and $2,000 fixed costs can reduce BEP by 20-30%. Test price increases in small increments, monitor conversion rates, and don't be afraid to charge what your product is worth. Use our Profit Margin Calculator to model the impact.

2. Reduce Your COGS

Negotiate better pricing with suppliers. Move from air freight to sea freight for slower-moving products. Consolidate orders to qualify for bulk discounts. Even a $2 reduction in COGS per unit on a 154 BEP product saves $308 in break-even costs — meaning you'd break even at 130 units instead of 154.

3. Lower Your Fixed Cost Base

Audit your monthly subscriptions. Many stores pay for tools they barely use. Cancel what you're not actively using. Use the money saved on ad spend that's driving actual sales.

4. Improve Average Order Value (AOV)

If customers buy multiple items per order, your contribution margin per order increases without adding fixed costs. Bundle products, offer free shipping thresholds, or run "buy 2 get 10% off" promotions. Higher AOV means fewer orders needed to break even.

5. Reduce Payment Processing Fees

Switching from PayPal (3.49% + $0.49) to Stripe (2.9% + $0.30) on a Shopify store with 100 orders/month at $80 AOV saves approximately $51/month in fees — $612/year. That $612 directly lowers your fixed cost base.

Frequently Asked Questions

What is the break-even point in ecommerce?
The break-even point is the number of units or dollar amount of revenue at which your total costs equal your total revenue, resulting in $0 profit. Below the BEP, you lose money. Above it, you generate profit. For ecommerce, it's calculated as Fixed Costs รท (Selling Price โ€“ Variable Cost per Unit).
How do fixed and variable costs differ for ecommerce?
Fixed costs don't change with sales volume — rent, software subscriptions, base ad budgets, salaries. Variable costs scale with every sale — COGS, packaging, shipping, payment processing. Knowing your split is essential because it tells you exactly how much each sale contributes to covering your fixed costs and generating profit.
Does break-even change over time?
Yes — your break-even point will shift whenever your costs or prices change. If you raise prices, BEP drops. If your supplier raises COGS, BEP rises. If you add a new subscription tool (higher fixed costs), BEP rises. Review your BEP quarterly or whenever you make a significant change to pricing or cost structure.
Is break-even the same as profitable?
No — breaking even means you're covering your costs, not making profit. True profitability requires revenue that exceeds all costs including your break-even point. Think of break-even as the starting line, not the finish line. The goal is to push well above your BEP into healthy profit margins.
How do I calculate BEP for multiple products?
For multiple products, use the weighted average contribution margin — calculate the total contribution from all products divided by total units sold. Or use the BEP revenue formula: Fixed Costs รท Overall Gross Margin Percentage. Use our Break-Even Calculator to model multi-product scenarios with different pricing and cost structures.