eBay vs Amazon: A Seller's Guide to Fees, Fakes, and Fit

eBay vs Amazon: The Quick Comparison

Both platforms sell almost everything, but they run on different economics and different rules for the seller. Amazon is a single, centralized catalog where sellers compete for the right to fulfil an existing listing (the Buy Box). eBay is a marketplace of independent listings where each seller controls their own page, price, and format — fixed price or auction. That one structural difference explains most of the other differences below: fees, catalog control, counterfeit exposure, and who each platform actually suits.

Amazon Fees vs eBay Fees: What You Actually Pay

Both platforms charge a percentage-of-sale commission plus an optional monthly account cost, but the mechanics differ enough to change your math depending on volume.

On Amazon, you first pick a selling plan: Individual costs $0.99 per item sold with no monthly fee, or Professional costs $39.99 per month regardless of volume. On top of that plan fee, Amazon charges a referral fee — a percentage of the total sale price (item price plus shipping and gift wrap, not tax) that varies by category. Most categories sit at 15%, with some running lower. If you use Fulfillment by Amazon, a separate per-unit fulfillment fee based on size and weight applies on top of the referral fee.

On eBay, there is no required monthly fee. You get 250 zero-insertion-fee listings per month; after that, insertion fees are $0.35 per listing per category. When an item sells, eBay charges a final value fee — for most categories, 13.6% of the total sale amount (item price, shipping charged to the buyer, handling, and sales tax) up to $7,500, dropping to 2.35% on the portion above that, plus a flat $0.30 or $0.40 per-order fee. An optional Store subscription lowers the percentage in exchange for a monthly cost, similar in spirit to Amazon's Professional plan trade-off.

That $1 gap on a $100 sale looks trivial until you account for the fixed costs sitting around it. eBay's zero required monthly fee means a seller doing five sales a month pays close to nothing beyond the per-sale cut. Amazon's Professional plan only pencils out once you're moving roughly 40+ items a month — below that, the Individual plan's $0.99-per-item model is usually cheaper, which is exactly why Amazon frames it as the low-volume option.

Selling on Amazon vs eBay: How the Process Actually Differs

Fee tables tell you the cost. They don't tell you how much friction is involved in actually getting a listing live and keeping it live, which is where the two platforms diverge the most for anyone integrating against their APIs or managing more than a handful of SKUs.

Amazon runs on a centralized catalog: every product maps to one ASIN, and if that ASIN already exists, you're attaching your offer to someone else's listing and competing for the Buy Box on price, fulfillment speed, and account health — not writing your own product page. Creating a genuinely new ASIN, or listing in a gated category (a large share of categories require approval, and many require brand registry or existing sales history), adds real onboarding friction. The upside is that Amazon's structure rewards fulfillment quality and price competitiveness in a very legible way, and the Selling Partner API is built around bulk feeds and reports for exactly that — catalog, inventory, and order data move in batches, not one listing at a time.

eBay has no equivalent Buy Box mechanic for most categories: you create your own independent listing, you own that listing's page, and buyers see your item as its own search result rather than one offer among many on a shared page. That makes eBay meaningfully faster to get a first listing live — no brand approval gate, no waiting on catalog matching — but it also means ranking and conversion depend entirely on your own title, photos, and item specifics rather than a shared, algorithmically-controlled product page. If you're running the same catalog across both platforms, this is the practical reason inventory sync tools exist: Amazon wants structured catalog data mapped to existing ASINs, eBay wants a freeform listing per SKU, and keeping stock counts consistent across both without overselling is a genuine integration problem, not just a spreadsheet task.

Amazon vs eBay: Which Has a Bigger Counterfeit Problem?

Neither platform is free of counterfeit risk, but the risk shows up differently because of how each one handles inventory.

Amazon's exposure comes largely from commingled FBA inventory: when multiple sellers ship the same barcode into Amazon's warehouses under "sell your own inventory" pooling, a buyer's order can be fulfilled from any seller's stock in that pool — including a counterfeiter's, if one slipped through. Amazon's countermeasures are Brand Registry (which lets brand owners lock down their listings and report infringement faster) and Transparency (unique, scannable codes applied to individual units so counterfeit units can't pass verification). A brand owner who opts out of commingling and uses "Fulfilled by Amazon — my inventory only" removes most of this specific risk.

eBay's exposure looks different because there's no shared warehouse pool — every listing ships from an individual seller's own stock, so there's no commingling risk in the Amazon sense. The counterfeit problem on eBay has historically concentrated in specific high-value categories: sneakers, trading cards, watches, and designer handbags, sold by individual sellers listing directly. eBay's response is the Authenticity Guarantee program, which routes eligible items in those categories through a third-party verification center before they ship to the buyer. Outside those covered categories, buyer protection on both platforms falls back to a standard guarantee — Amazon's A-to-z Guarantee and eBay's Money Back Guarantee — that refunds a buyer for items that are significantly not as described, counterfeit included.

Which Platform Should You Sell On? A Decision Framework

Most of the "which is better" debate collapses once you look at what you're actually selling and how much volume you expect.

Can You Sell on Both? The Multi-Channel Reality

For most catalogs the honest answer isn't "pick one" — it's both, run in parallel. eBay's low barrier to entry makes it a reasonable place to validate a new SKU before it earns a spot in Amazon's more structured, gated catalog, and established sellers commonly run both channels simultaneously once a product proves itself.

The part that trips people up isn't deciding to sell on both — it's keeping stock counts and order data consistent once you do. Amazon expects catalog and inventory updates through structured, ASIN-mapped feeds; eBay treats each listing as its own object with its own quantity field. Without something syncing the two in near real time, a sale on one channel doesn't reduce available stock on the other, and overselling an item you don't actually have becomes a when-not-if problem rather than an edge case. If you're at the point of running both channels and the manual reconciliation is starting to cost more time than it saves, that's the specific problem Netalith's marketplace integration work is built to solve — syncing inventory, orders, and catalog data across Amazon, eBay, and the other channels a growing catalog ends up on.

If you're still deciding where to start, or want a second opinion on which platform actually fits your specific catalog, get a scoped quote and we'll help you figure out the right mix before you build around the wrong one.