How to Use SellerAmp for Amazon Wholesale (Full Walkthrough)

SellerAmp calculates your real fees, ROI, and net profit on any Amazon product. That is the whole job it does. It sounds simple, but for wholesale it is one of the two or three tools you genuinely cannot work without, because you cannot do this math by hand on a 500-line price list.

SellerAmp (code LAUNCHPAD for 50% off your first month) works two ways: check one product at a time on a listing page, or paste in a list of UPCs and check hundreds at once. For wholesale, the second one is where you live.

Checking a single product

Start with one product so you understand what every number means before you run a full list.

Find the product on Amazon

Search the ASIN or UPC, or open the listing directly if you have the SellerAmp browser extension installed. The current Buy Box price pulls in automatically.

Enter your product cost

This is the price on your distributor's price list, the actual cost per unit you'd be paying. Everything downstream depends on this number being accurate.

Let it calculate the fee stack

SellerAmp pulls in the referral fee for that category and the FBA fulfillment fee based on the product's size and weight, then subtracts both from the selling price automatically.

Add prep and shipping costs

There's a field for inbound shipping and prep costs per unit. Fill this in with your real numbers, not zero. Skipping this is the single most common way beginners overstate their margin.

Read the net profit and ROI, not the gross margin

This is the number that actually decides whether the product is worth ordering. More on exactly what to look for below.

The number beginners read wrong

Here is the mistake I see constantly. Someone looks at a price list, sees a product costing $8 that sells for $20 on Amazon, and thinks: that's a 60% margin, this is great. Then they check it in SellerAmp and it shows a $1.10 net profit. Confusion sets in. Nothing feels broken, but the number does not match the story they had in their head.

The $8-to-$20 comparison is gross margin before any Amazon costs. SellerAmp's ROI and net profit figures are what's left after referral fees, FBA fulfillment fees, and your prep and shipping costs. That is the number that actually matters, and it is almost always dramatically smaller than the gross comparison.

Item	Notes	Amount
Selling price	Current Buy Box price	$20.00
Product cost	Distributor price	−$8.00
Referral fee	15% of selling price	−$3.00
FBA fulfillment fee	Standard size	−$4.90
Prep and inbound shipping	Per unit	−$3.00
Net profit per unit	What SellerAmp actually shows you	$1.10

That $1.10, divided by the $8 you spent, is roughly 14% ROI. Not the 60% the price list made it look like at first glance. This is exactly the gap covered in more depth in real Amazon wholesale profit margins, and it's the reason nearly every gross-margin number you see quoted online is misleading on its own.

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The fix is not the tool, it's the input. If SellerAmp is showing you numbers that feel wrong, check whether you actually entered prep and inbound shipping costs. Leaving those at zero is the most common reason a product looks better in SellerAmp than it will in real life.

Why most of your price list will show no profit

Once people start checking real price lists, a common reaction shows up: they run a hundred, two hundred, sometimes thousands of UPCs, and almost nothing clears a real profit. It starts to feel like the tool is broken or the whole approach is wrong.

It isn't. This is normal. Most products on any given distributor's price list will not clear a real profit once every fee is included, because most products were never screened for Amazon resale in the first place, they were just built into a general wholesale catalog. Finding the small number that do work is the entire point of running a bulk check. A price list that returns a handful of genuinely profitable products out of hundreds is a normal, healthy result, not a failure.

What actually causes a bad hit rate is usually one of these:

Fixable

Prep and shipping costs left blank or set too low
Checking a distributor with a weak product-to-Amazon overlap
Not filtering by category referral fee before you screen
Missing the Buy Box price stability check in Keepa first

Just the nature of wholesale

A generic catalog with mostly unprofitable Amazon fits
High competition driving Buy Box prices down
Categories with a 15% referral fee eating the margin
A low hit rate on any given list, even a good one

If you're consistently getting zero hits across multiple full lists, the more likely issue is the distributor, not your screening. Finding the right suppliers in the first place does more for your hit rate than any tool setting.

Screening a full price list

Once you have a distributor's price list, the workflow is:

Pull the UPC and cost columns from the price list into a clean list.
Paste the UPCs into SellerAmp's bulk tool and let it match each one to an Amazon listing.
Enter your cost per unit for the whole batch, or upload cost alongside UPC if your list has it.
Sort by net profit or ROI once it finishes, not by gross margin.
Take your shortlist into Keepa to confirm sales rank and Buy Box price have been stable, not just profitable today. This post covers exactly what to check.

SellerAmp tells you what's mathematically worth ordering. Keepa tells you whether that math will still hold up in six months. You need both before you commit money to an order, which is the same process covered end to end in how to analyze a wholesale price list.

Set your minimum before you start

Decide your ROI floor before you screen, not after. A common approach is not going below 15-20% ROI, since anything thinner leaves too little room to absorb a price drop or fee increase later. Screening without a set number in mind is how people talk themselves into thin products because a list "looked disappointing" otherwise.

Once you're placing regular orders, Sellerboard picks up where SellerAmp leaves off, tracking your actual realized profit per product after the sale instead of the pre-order estimate.

Common questions

What is SellerAmp used for in Amazon wholesale? ›

SellerAmp calculates the real fees, ROI, and net profit on any Amazon product once you enter the Buy Box price and your product cost. For wholesale it's used to screen a distributor's price list fast, checking dozens or hundreds of UPCs against your actual costs instead of estimating fees by hand.

Why does SellerAmp show no profit on most products I check? ›

That's normal and expected, not a sign something is broken. Most products on any given price list will not clear a real profit once every fee is included. A healthy price list typically yields a small percentage of genuinely profitable products after screening, which is why bulk screening a large list is the point, not a sign of failure.

What ROI number should I be looking for in SellerAmp? ›

Look at the net profit and ROI figures after all fees, not the gross margin. A product can look profitable on a distributor's price sheet and still show a thin or negative number in SellerAmp once referral fees, FBA fees, and shipping are included. The ROI SellerAmp calculates after fees is the number that actually matters, not the difference between your cost and the selling price.

Can SellerAmp check a whole price list at once? ›

Yes. You can paste in a list of UPCs and SellerAmp matches them to Amazon listings and calculates fees and ROI for each one in bulk, which is the practical way to screen a distributor's price list instead of checking products one at a time.

Is SellerAmp better than Keepa for product research? ›

They do different jobs. SellerAmp calculates fees, ROI, and net profit for a given cost and selling price. Keepa shows the historical sales rank, price, and Buy Box data over time. Most wholesale sellers use both together: Keepa to check whether a product's demand is stable, and SellerAmp to confirm the numbers actually work.