Online store · 14 min
What a sale really costs online
Someone just bought a shirt from your shop for $40
Your business
Pick the business you'll run
Each lesson uses your pick for its numbers. You can change it any time.
Pick a business to start.
Sources and every number (12 sources)
Sources
- Quarterly Retail E-Commerce Sales, 2nd Quarter 2026 (released August 18, 2026) · U.S. Census Bureau, 2026
- Etsy, Inc. Form 10-K for the fiscal year ended December 31, 2025 · Etsy, Inc. (filed with the U.S. SEC), 2025
- Unisex Staple T-Shirt (Bella + Canvas 3001): price and US shipping · Printful, 2026
- Price List (Notice 123), effective October 4, 2026: USPS Ground Advantage retail prices · U.S. Postal Service, 2026
- 2025 Retail Returns Landscape (with Happy Returns) · National Retail Federation, 2025
- Shopify pricing: plans and online card rates with Shopify Payments (US) · Shopify, 2026
- Fees & Payments Policy · Etsy, Inc., 2026
- Etsy Payments Policy: payment processing fees by country · Etsy, Inc., 2026
- How much does it cost to sell on Amazon? Selling plans and referral fees · Amazon.com Services LLC, 2026
- Stripe pricing: standard rates for cards (US) · Stripe, 2026
- Wayfair Inc. Form 10-K for the fiscal year ended December 31, 2025 · Wayfair Inc. (filed with the U.S. SEC), 2025
- Unisex Heavy Blend Hoodie (Gildan 18500): price and US shipping · Printful, 2026
Every number
- $40
(example number: Simplified example: one printed T-shirt plus the shipping the customer pays.) · Simplified example: one printed T-shirt plus the shipping the customer pays. - $34
(example number: Simplified example: the shirt's price in our example shop.) · Simplified example: the shirt's price in our example shop. - $6
(example number: Simplified example: what our example shop charges the customer for shipping.) · Simplified example: what our example shop charges the customer for shipping. - $4.90
(example number: Simplified example: what's left of the example order on your own website after every cost in the breakdown.) · Simplified example: what's left of the example order on your own website after every cost in the breakdown. - $11.50
(example number: Simplified example: what's left of the example order in an Etsy shop after every cost in the breakdown.) · Simplified example: what's left of the example order in an Etsy shop after every cost in the breakdown. - $4.78
(example number: Simplified example: what's left of the example order in a print-on-demand shop after every cost in the breakdown.) · Simplified example: what's left of the example order in a print-on-demand shop after every cost in the breakdown. - 17.1%
census.gov ·2026 · E-commerce as a share of all US retail sales, second quarter of 2026, seasonally adjusted: the quarterly release of August 2026. The page shows the newest release, so check that quarter when re-checking. - $340.2B
census.gov ·2026 · US retail e-commerce sales in the second quarter of 2026, seasonally adjusted: the quarterly release of August 2026. The page shows the newest release, so check that quarter when re-checking. - 86.5 million
sec.gov ·2025 · Active buyers on the Etsy marketplace at the end of 2025. - 5.6 million
sec.gov ·2025 · Active sellers on the Etsy marketplace at the end of 2025. - $9
(example number: Simplified example: a blank shirt plus a one-color print, bought in a batch of fifty.) · Simplified example: a blank shirt plus a one-color print, bought in a batch of fifty. - $11.92
printful.com ·2026 · Printful's price to the seller for a Bella + Canvas unisex T-shirt (its staple tee) with one print, at the time of writing. - $4.95
printful.com ·2026 · Printful's starting US shipping price for a T-shirt order, at the time of writing. - $7
(example number: Simplified example: a label bought through the store platform, which sells them for less than the post office counter.) · Simplified example: a label bought through the store platform, which sells them for less than the post office counter. - $9.35
usps.com ·2026 · USPS Ground Advantage retail (counter) price for a package up to eight ounces to a mid-distance zone (zone five), in the price list that took effect in October 2026. - $0.75
(example number: Simplified example: a mailer, tissue paper and a thank-you card.) · Simplified example: a mailer, tissue paper and a thank-you card. - $1.50
(example number: Simplified example: money set aside on every order for returns: return labels, repacking and the odd shirt you can't resell.) · Simplified example: money set aside on every order for returns: return labels, repacking and the odd shirt you can't resell. - 19.3%
nrf.com ·2025 · The share of online sales retailers expected to be returned in 2025, in dollars (a survey-based estimate). - $15
(example number: Simplified example: what the ads cost, on average, for each customer they bring: worked out in the cost-per-click ticket.) · Simplified example: what the ads cost, on average, for each customer they bring: worked out in the cost-per-click ticket. - $6
(example number: Simplified example: what Etsy Ads cost, on average, for each sale they bring.) · Simplified example: what Etsy Ads cost, on average, for each sale they bring. - 2.9%
shopify.com ·2026 · Shopify's standard online card rate on its Basic plan, with Shopify Payments, at the time of writing (premium cards cost more). - $0.30
shopify.com ·2026 · Shopify's fee per online card payment on the Basic plan, on top of the percentage. - $39
shopify.com ·2026 · Shopify's Basic plan, paid month to month, at the time of writing. - $29
shopify.com ·2026 · Shopify's Basic plan per month when paid for a year at a time. - 2%
shopify.com ·2026 · Shopify's extra fee on its Basic plan when you use another payment company instead of Shopify Payments. - 100
(example number: Simplified example: orders a month in our example shop.) · Simplified example: orders a month in our example shop. - $0.39
(example number: Simplified example: the monthly plan shared out over the example shop's orders.) · Simplified example: the monthly plan shared out over the example shop's orders. - $1.46
(example number: Worked out from Shopify's published standard card rate, on the example order.) · Worked out from Shopify's published standard card rate, on the example order. - $1.85
(example number: Simplified example: the card fee plus the plan's share, on the example order.) · Simplified example: the card fee plus the plan's share, on the example order. - 6.5%
etsy.com ·2026 · Etsy's transaction fee: a share of the item price plus the shipping and gift wrap you charge. - $0.20
etsy.com ·2026 · Etsy's fee to list one item for four months, paid whether or not it sells. - 3%
etsy.com ·2026 · Etsy's payment processing fee for US shops, on the whole order including shipping. - $0.25
etsy.com ·2026 · Etsy's payment processing fee per US order, on top of the percentage. - $2.60
(example number: Worked out from Etsy's published transaction fee, on the example order.) · Worked out from Etsy's published transaction fee, on the example order. - $1.45
(example number: Worked out from Etsy's published payment processing fee, on the example order.) · Worked out from Etsy's published payment processing fee, on the example order. - $4.25
(example number: Worked out from Etsy's published listing, transaction and processing fees, on the example order.) · Worked out from Etsy's published listing, transaction and processing fees, on the example order. - 15%
etsy.com ·2026 · Etsy's Offsite Ads fee on an order that came from one of its ads, for shops under its yearly sales threshold. - $6
(example number: Worked out from Etsy's published Offsite Ads fee, on the example order.) · Worked out from Etsy's published Offsite Ads fee, on the example order. - $10.25
(example number: Worked out from Etsy's published fees, including the Offsite Ads fee, on the example order.) · Worked out from Etsy's published fees, including the Offsite Ads fee, on the example order. - 12%
etsy.com ·2026 · Etsy's Offsite Ads fee once a shop has made its sales threshold in a year. - $10,000
etsy.com ·2026 · Sales over the prior year at which Etsy's Offsite Ads fee drops, and stops being optional. - $100
etsy.com ·2026 · The most Etsy's Offsite Ads fee takes from one order. - 17%
amazon.com ·2026 · Amazon's referral fee for clothing and accessories on total prices over its threshold. - $20
amazon.com ·2026 · The total price above which Amazon's clothing referral fee is at its top rate. - $6.80
(example number: Worked out from Amazon's published referral fee for clothing, on the example order.) · Worked out from Amazon's published referral fee for clothing, on the example order. - $0.99
amazon.com ·2026 · Amazon's per-item fee on its Individual selling plan. - $39.99
amazon.com ·2026 · Amazon's Professional selling plan, per month. - 1.5%
stripe.com ·2026 · Stripe's extra fee for cards issued outside the US. - 1%
stripe.com ·2026 · Stripe's extra fee when a payment has to be converted to another currency. - $38.54
(example number: Worked out from Shopify's published standard card rate, on the example order.) · Worked out from Shopify's published standard card rate, on the example order. - $16.87
(example number: Simplified example: the printer's shirt and shipping prices above, added up.) · Simplified example: the printer's shirt and shipping prices above, added up. - $1
(example number: Simplified example: the label minus the shipping the customer paid.) · Simplified example: the label minus the shipping the customer paid. - $0.50
(example number: Simplified example: what one click on the shop's ad costs.) · Simplified example: what one click on the shop's ad costs. - 30
(example number: Simplified example: about one visitor in this many buys.) · Simplified example: about one visitor in this many buys. - 37.5%
(example number: Worked out: the example ad cost as a share of the example order.) · Worked out: the example ad cost as a share of the example order. - $0.25
(example number: Simplified example: what one click on an Etsy Ads promotion costs.) · Simplified example: what one click on an Etsy Ads promotion costs. - 24
(example number: Simplified example: about one Etsy visitor in this many buys.) · Simplified example: about one Etsy visitor in this many buys. - $914.8M
sec.gov ·2025 · Etsy's marketing expense, fiscal 2025. - 31.7%
sec.gov ·2025 · Etsy's marketing expense divided by its revenue, fiscal 2025, worked out from the annual report. - 11.4%
sec.gov ·2025 · Wayfair's advertising expense as a share of its net revenue, fiscal 2025. - $1
(example number: Simplified example: what a click costs once holiday shoppers and big stores crowd in.) · Simplified example: what a click costs once holiday shoppers and big stores crowd in. - $30
(example number: Simplified example: the holiday click price times the visitors it takes to make one sale.) · Simplified example: the holiday click price times the visitors it takes to make one sale. - $0.50
(example number: Simplified example: what an Etsy Ads click costs in the holiday rush.) · Simplified example: what an Etsy Ads click costs in the holiday rush. - $12
(example number: Simplified example: the holiday click price times the visitors it takes to make one sale.) · Simplified example: the holiday click price times the visitors it takes to make one sale. - 25%
(example number: Simplified example: a Black Friday discount.) · Simplified example: a Black Friday discount. - $8.50
(example number: Simplified example: the discount taken off the example shirt price.) · Simplified example: the discount taken off the example shirt price. - $38
(example number: Simplified example: the example price plus a small rise.) · Simplified example: the example price plus a small rise. - $4
(example number: Simplified example: a small price rise.) · Simplified example: a small price rise. - 20
(example number: Simplified example: better photos and reviews, so fewer visitors leave without buying.) · Simplified example: better photos and reviews, so fewer visitors leave without buying. - 16
(example number: Simplified example: better photos and reviews, so fewer visitors leave without buying.) · Simplified example: better photos and reviews, so fewer visitors leave without buying. - $22.63
printful.com ·2026 · Printful's price to the seller for a Gildan heavy blend hoodie with one print, at the time of writing. - $8.79
printful.com ·2026 · Printful's starting US shipping price for a hoodie order, at the time of writing. - $11.70
usps.com ·2026 · USPS Ground Advantage retail (counter) price for a package up to one pound to a mid-distance zone (zone five), in the price list that took effect in October 2026. - $40
(example number: Simplified example: a starting price for the hoodie, before shipping, to change: it leaves less than the example target.) · Simplified example: a starting price for the hoodie, before shipping, to change: it leaves less than the example target.