What your product really earns on Amazon, once every fee is counted
Published September 18, 2025. Updated September 12, 2026. Amazon’s fees and rules change often; the ranges quoted here apply to this period.
Most businesses know their gross margin and think they know their profitability. Those are two different things, and the gap between them is where the money disappears.
Amazon is the best place to see it, because the fees there are many, visible, and unavoidable. What you’re about to read holds for your store, your website, and any channel where someone takes their cut before you do. Amazon just makes the math impossible to dodge.
You’ve seen the ad: a young business owner leaning on his car, promising millions with a “foolproof technique.” I managed Amazon accounts for five years. I saw the winners and the ones who quit, and neither group stood out for its technique. What set them apart was whether they knew this number.
What it really costs to sell on Amazon
Amazon FBA (Fulfilled by Amazon) is an easy dream to sell: access to hundreds of millions of customers, logistics handled for you, your brand in the hands of a giant.
Here’s what quietly kills profitability:
The fees pile up fast. Shipping to the warehouses, storage (which shoots up after 30 days), Amazon’s commission (15% to 45% depending on the category), advertising you can’t skip (at least 5% to 10% of sales just to stay visible), free returns. The result: a product that sells for $20 can cost you $15 in fees. And which way it cuts is a surprise: the cheap product suffers most, because a good share of those fees is fixed. Storage and prep are charged by weight and size, not by selling price. A $50 product absorbs the same fixed fee much better, as long as it’s not bigger or heavier. It’s not your price that costs you, it’s the bulk you’re shipping around.
The rules change without warning. An image that doesn’t comply, a description judged misleading, a customer complaint... and your listing is blocked. No quick appeal, no clear timeline. Amazon decides.
The competition is brutal. You’re never alone. Dozens of sellers (sometimes better funded, sometimes copying your product) are fighting for the same visibility. Without paid advertising, you vanish within a week.
The customer is king, not you. Amazon always puts the customer first. A fragile product, or one that’s poorly explained? A wave of returns. Unlike on your own site, you can’t reach the customer directly to reassure them, negotiate, or explain.
It’s harsh, but that’s how it is.
The real question: does your product belong on Amazon?
Instead of diving in, stop and run your products through three concrete checks.
First criterion: your real fees against your margin
Run Amazon’s fees on a real product:
- Commission: 15% to 45%
- FBA fees: $2 to $4 per unit (weight, size)
- Minimum advertising: 5% to 10% of sales
- Free returns: count on 5% to 15% of sales
Add it all up. If the margin left over is under 20%, drop it.
Second criterion: can your operation be kept simple?
Amazon likes simple products: one size, one colour, no complicated variants. If your product needs extras (custom packaging, special labelling), that gets expensive at Amazon. Every exception becomes a chance for a mistake.
Third criterion: is there real demand for it?
This is the question everyone skips. You have a good product, but is anyone looking for it? Run a test: set up a small $200 campaign on Facebook or Google. See whether people click and buy. If nobody’s interested on a small budget, Amazon won’t create the interest for you.
From the field: what worked, what failed
In five years, here’s what I saw.
What works:
- Light, durable products (not fragile ones).
- Selling prices between $30 and $500, the range where Amazon works best.
- Clear niches (a specific need, not a generic one).
- Sellers who accept the learning curve (6 to 12 months before they’re really profitable).
What fails:
- Products that cost too much to make (the margin is eaten before you start).
- Crowded categories (electronics, clothing, beauty: already saturated).
- Sellers who expect results in two to three months.
- Owners who mix up “on Amazon” with “profitable on Amazon.”
What I do at FP Service
I don’t help people “succeed on Amazon.” I help them decide whether Amazon is any use to them.
Together, we check:
- Whether your profitability really holds up after fees.
- Whether your product meets real demand.
- Whether you have the capital (and the patience) for a 6- to 12-month experiment.
- Whether Amazon helps you grow, or whether another channel (Shopify, your own site, wholesalers) would serve you better.
Sometimes the answer is yes. Often it’s no.
And that’s fine. Better to know before you sink $5,000 and six months into a bet that doesn’t pay off.
Thinking about Amazon, but not sure?
Book a 30-minute meeting with me. We’ll work out your real fees, check whether the demand is there, and figure out your best path.
It’s free and there are no strings attached. The goal is an honest answer.
Note: The full checklist, “Amazon FBA: does it work for me?”, is available for download (in French). It goes through the three criteria above and gives you a clear assessment in 10 minutes.
Three questions I get about profitability
Is selling on Amazon worth it for a small business?
It comes down to one number: what’s left after fees. If your margin drops below 20% once the commission, shipping, advertising, and returns are counted, the answer is no, and no technique will change it.
How long does it take to become profitable on Amazon?
It takes 6 to 12 months for a seller who takes it seriously. The ones who expect results in two or three months quit before they’ve learned how the platform works.
Can I sell on Amazon and on my own website at the same time?
Yes, and it’s often the right answer. The trap isn’t having two channels, it’s having two inventories that don’t talk to each other. That’s where stockouts and cancelled orders start.