20oz Stainless Tumbler Amazon Profit Calculator

Amazon charges a flat 15% referral fee on the 20oz Stainless Tumbler — it sits outside the tiered Clothing & Accessories category — applied to item price plus shipping, with a $0.30 minimum. Right now Printful fulfills the 20oz Stainless Tumbler for $24.97 + $4.99 shipping, and Printify from $21.79 + $6.69; most sellers list it between $24.99 and $34.99.

At a $29.99 price with free shipping and Printful fulfillment, that's $4.50 in Amazon fees, leaving -$4.47 profit per sale — a -14.9% margin, so you'd need to raise the price to turn a profit at all. For the 20oz Stainless Tumbler, Printify is the more profitable fulfiller on Amazon — about $1.48 more per sale at $29.99 (all-in cost $29.96 on Printful vs $28.48 on Printify). Breakeven — the price where profit hits $0 — is $35.25 on Printful; sell below that and you're paying to make the sale.

Amazon's 15% referral has a $0.30 floor, so very low-priced items lose a disproportionate share — keep that in mind if you sell the 20oz Stainless Tumbler cheaply.