FBA vs FBM Profit Calculator | Houston 3PL KAK Sourcing
Calculate margins with our FBA vs FBM profit calculator. Houston's KAK Sourcing offers $1 FBA prep, $2.75 FBM orders, and $25 pallet storage. Maximize ROI.
FBA vs FBM Profit Calculator & Margin Guide
Stop guessing your Amazon margins. KAK Sourcing helps you compare Fulfillment by Amazon against Fulfillment by Merchant with transparent, flat-rate pricing. Based in Houston, we charge just $1 per unit for FBA prep, $2.75 per order for FBM fulfillment, and $25 per pallet biweekly for storage. Trusted by ecommerce sellers – see our Trustpilot profile to see how our 32,000 square foot facility streamlines your logistics and protects your bottom line.
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Are Amazon’s hidden fees draining your monthly profits?
Many Amazon sellers watch their revenue grow while their bank accounts shrink. Between unexpected storage spikes, high return fees, and complex referral structures, calculating true profitability feels impossible. Whether you are comparing Amazon’s inbound placement fees against merchant-fulfilled shipping rates, you need absolute clarity. KAK Sourcing eliminates the guesswork, providing predictable flat-rate prep and fulfillment so you can accurately forecast your margins and choose the right logistics strategy.
How to Calculate Your Amazon FBA vs FBM Profit Margins
To determine whether FBA or FBM yields a higher return on investment, you must analyze your cost of goods sold (COGS), Amazon referral fees, and actual fulfillment expenses. While FBA offers Prime badge advantages, its storage fees escalate rapidly during peak seasons. FBM allows you to maintain control over your inventory and packaging costs, especially when partnering with a dedicated third-party logistics provider.
When using an fba vs fbm profit calculator, plug in these essential metrics:
- FBA Prep Costs: Amazon charges premium rates for labeling and bagging. KAK Sourcing offers flat-rate pricing page to model your exact FBA prep expenses.
When to Choose Fulfillment by Merchant (FBM)
Fulfillment by Merchant is often the most profitable choice for oversized items, multi-packs, slow-moving inventory, or multi-channel sellers who list on Walmart, TikTok Shop, and Shopify. By utilizing FBM, you avoid Amazon’s strict storage limitations and keep your inventory consolidated in one central location.
Our dedicated pallet storage at $25 biweekly, allowing you to drip-feed inventory into Amazon FBA as needed to avoid high storage fees. Ready to maximize your margins? Contact us today or visit our
Common questions · 6 answers
Before you reach out — quick answers
What is the main difference between FBA and FBM?
FBA (Fulfillment by Amazon) means Amazon stores, packs, and ships your products. FBM (Fulfillment by Merchant) means you or a third-party logistics partner like KAK Sourcing handles storage and shipping directly to the customer.
How much does KAK Sourcing charge for FBA prep?
We charge a flat rate of $1 per unit for standard Amazon FBA prep, which includes receiving, inspection, labeling, and packing to ensure full compliance with Amazon’s strict guidelines.
What are the FBM fulfillment fees at KAK Sourcing?
Our FBM fulfillment fee is $2.75 per order. This flat-rate pricing makes it simple to calculate your exact shipping margins and keep your fulfillment costs predictable.
How much does inventory storage cost at your Houston warehouse?
We charge a flat rate of $25 per pallet biweekly. This is highly cost-effective compared to Amazon’s fluctuating cubic foot storage fees, especially during the Q4 holiday season.
What is the cutoff time for same-day FBA prep shipping?
Our daily cutoff time for same-day FBA prep and shipping from our Houston warehouse is 2:00 PM Central Time (CT).
Which platforms does KAK Sourcing support?
We support sellers on Amazon, Walmart, TikTok Shop, and Shopify workflows, allowing you to manage all of your multi-channel fulfillment from our 32,000 sqft Houston facility.
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