Selling on Amazon
FBA setup, your own products vs reselling, and why the middleman path is often easier. Then open the step-by-step guide below.
Hey family — you can sell on Amazon
Hey family, listen, I pray all is well with you. I am always looking for content that is going to be a blessing to me and also information that could be a blessing to you. I have worked with a couple of people to help them get set up for FBA, which is Fulfillment by Amazon. And honestly, it is not that difficult. I tried to get my kids into it. My kids just were not really all that into it. But did you know that you could sell on Amazon?
Yes, you can get your own products sold on Amazon. Of course, we have books and stuff like that. If you have something at home, you can sell it on Amazon one of two ways: list it and do the shipping yourself, or ship your products to an Amazon warehouse. That is if you have a product.
The easier thing to do is to find a product you can just resell. You can order it from China or wherever, have it shipped to Amazon, and then Amazon will sell it. They charge you a stocking fee for anything you do not sell that month, and it keeps advertising until it is sold.
I found a step-by-step guide to walk you through this process if you are interested. I am sharing that guide on this post. Let’s discuss it in the comments.
Here is how I want you to run this. Treat it like a cash-flow laboratory, not the endgame. Pure resale rents Amazon’s platform and someone else’s brand. That is fine if you model the margin and write your kill criteria before you fall in love with the ASIN.
Information before inventory. If you cannot prove demand on paper, you are gambling with stock.
FBA handles logistics. It does not handle Account Health, authenticity risk, or cash conversion. You still own those.
Quitting a bad experiment is wisdom, not failure. Stewardship beats sunk-cost pride.
Rick PiñaThe middleman framing (Zara / Wayfair / H&M as resellers of what already sells) and the four-step Amazon playbook (demand tools → cheaper sourcing → Seller Central + FBA → rinse and repeat) come from Kai Karats’ Instagram carousel: instagram.com/p/Dcw8U08jtKJ. This guide paraphrases that system for education, then adds path comparison, unit-economics worksheets, consultant checks, and compliance red lines. Fair-use educational share with clear credit. Not an endorsement by Kai, Amazon, or any tool named below.
In This Guide
They spotted the gap. You can too.
Paraphrased from Kai Karats. Credit: @kaikarats.
Kai’s point is simple: brands like Zara, Wayfair, and H&M built empires without owning everything they sell. They spotted the gap between suppliers and buyers, then filled it for profit. The same gap exists on Amazon. You do not have to design the product. You do not have to manufacture it. You resell what already sells.
In his framing, the middleman path can create an income stream without running ads, without inventing a product, and with Amazon handling a large share of storage, packaging, shipping, returns, and customer service when you use Fulfillment by Amazon (FBA). That last piece is the operational lever. You still own the risk: capital, gating, returns, and Account Health.
Here is how I want you to run this. Treat it like a cash-flow laboratory, not the endgame. Pure resale rents Amazon’s platform and someone else’s brand. That is fine if you model the margin and write your kill criteria before you fall in love with the ASIN.
Rick PiñaRetail Arbitrage vs Online Arbitrage vs Wholesale
Same resale idea. Different source of stock. Different capital and repeatability.
Store shelves & clearance. Cheapest lessons per mistake. Hard to scale past your hours.
Buy discounted SKUs online, take possession, send to FBA. Best starter for limited capital + serious intent.
Authorized distributors / brands. MOQs + paperwork. Thinner unit margins, schedulable volume.
Retail Arbitrage
When it fits: strong local retail density, you like in-person hunting, you want the cheapest classroom. Watch: time + mileage, gating with retail receipts, same IP/condition traps as OA.
Online Arbitrage
When it fits: desk-based sourcing, small test buys, fast fee literacy. Industry guides commonly cite a few hundred dollars to start testing (not a guarantee). Watch: deal treadmill, price wars, gated brands, prohibited retailer-ships-direct dropshipping.
Wholesale
When it fits: legal entity, resale certificate, supplier relationships, capital for MOQs. Often after 1–3 months of marketplace literacy. Watch: cash locked in bulk, unauthorized suppliers, MAP violations.
Online Arbitrage first (small validated lots), then add a wholesale-lite lane once you have clean invoices and fee literacy. Private label is a different game (brand asset, more capital, longer freeze). Defer PL until the system and runway are proven.
Demand → Source → Sell with FBA → Repeat
Kai’s sequence, expanded with tool context and kill criteria. Tool names for identification only.
Never guess based on gut
Kai points sellers to demand tools such as SellerAmp (and operators commonly also use Keepa charts and suites like Helium 10). The job is to see what is already selling and how often. His carousel filters: 600+ monthly units, strong BSR rank, and multiple sellers on the listing. Treat those as his starting filters, not gospel. Your floors may be stricter.
Before you buy: check Keepa-style price/BSR history (avoid one-week spikes), confirm the current Amazon price is typical, estimate Buy Box share, and check gating in Catalog → Add Product before you pay.
- Is sales velocity real across months, not a spike?
- Is the ASIN ungated for my account (or do I have a valid path)?
- Would I still buy if Buy Box share is imperfect?
Information before inventory. If you cannot prove demand on paper, you are gambling with stock.
Rick PiñaTarget 20–30% margin after Amazon fees
Kai’s Step 2 points to sourcing tools such as Tactical Arbitrage (and wholesale directories later). Find the same product cheaper. Suppliers and retailers discount below Amazon’s listing price all the time. His stated goal: 20–30% margin after Amazon fees.
Expand that goal. After fees still is not net profit. Model referral + FBA + prep/inbound + returns buffer + your time. Thin “deals” often vanish after the full stack.
- Buy cost + tax/shipping in = ________
- Amazon referral + FBA + prep = ________
- Returns buffer (your %) = ________
- Net per unit & ROI % vs my written floors?
Open the account. Send the inventory.
Go to Amazon Seller Central. Create the seller account. Send inventory to an Amazon fulfillment center. With Fulfillment by Amazon (FBA), Amazon handles storage, packaging, shipping, returns, and a large share of customer service. You join a listing that is already selling (when matching an existing ASIN).
Practical expansion: complete KYC; enroll in FBA; learn Individual vs Professional plan tradeoffs on Amazon’s current pricing pages (commonly cited Professional plan around $39.99/month plus selling fees — verify live); generate FNSKU labels; follow polybag/expire-date rules; create inbound shipments; reconcile units on check-in; set a hard floor price.
FBA handles logistics. It does not handle Account Health, authenticity risk, or cash conversion. You still own those.
Rick PiñaScale winners. Kill losers fast.
Kai’s close: find another profitable product, run the same process, scale from there. He describes starting with one product, one supplier, one decision. That is the right shape. Expansion: build SOPs (scoring checklist, reorder rules, weekly Account Health, monthly P&L). Reinvest only into ASINs that clear your floors. Document kill criteria before emotion takes over.
- After 90 days: sustainable hourly rate after tools/fees? Y / N
- Inventory turns slower than my runway? Kill / reduce
- Account Health deteriorating despite compliance? Pause
- Capital required exceeds what I can lose? Stop
Quitting a bad experiment is wisdom, not failure. Stewardship beats sunk-cost pride.
Rick PiñaContribution margin is the only score that matters
Revenue and units moved are vanity. Model per ASIN before you scale inventory.
Force every deal through the stack: buy-in + inbound + Amazon referral + FBA + prep + expected return rate (+ ads if you add them). If contribution margin after that stack does not clear your written floor, do not buy.
| Line | Your number |
|---|---|
| Amazon sell price (typical, not spike) | $ ________ |
| Buy cost (product + tax + inbound to you) | $ ________ |
| Amazon referral fee | $ ________ |
| FBA fulfillment + storage estimate | $ ________ |
| Prep / labeling / inbound to Amazon | $ ________ |
| Returns buffer (your %) | $ ________ |
| Ads (if any) | $ ________ |
| Contribution margin / unit | $ ________ |
| ROI % (margin ÷ total cash out) | ________ % |
| My written floors (min $ and min ROI%) | $ ____ / ____ % |
Five insights before you scale
Board framing: teach this as a lab with unit economics and kill criteria loud up front — not lifestyle without off-ramps.
Unit economics
Loud: contribution margin after fees, FBA, returns, ads, and COGS is the only score. Model per ASIN. If it misses your written floor, kill the buy — do not “hope volume”.
Capital / runway
Inventory is locked capital with a soft floor and policy risk. Size buys to a cash conversion cycle you can survive.
Brand gating / IP
You rent brand equity. Gating, MAP, authenticity complaints, and IP claims can kill a SKU overnight. Prefer ungated or authorized supply.
Systems vs hustle
Winners run scoring SOPs, reorder rules, and kill criteria. Losers grind sourcing without a margin floor.
When this is a bad fit
Bad fit if you need brand equity, predictable margins, low capital intensity, or control of the customer. Also bad fit if you will not track unit economics weekly.
Red lines (do not cross)
Arbitrage can be allowed. Account death usually comes from condition, gating, invoices, and dropship shortcuts.
- Take possession. Compliant OA/RA means you receive the goods (home or prep center), then ship to FBA or the customer yourself. No retailer-ships-direct-to-customer with their packing slip.
- No prohibited dropship shortcut. Amazon’s dropshipping policy is not a loophole for retailer-ships-direct “arbitrage.”
- Check gating before you buy. Retail receipts often fail ungating. Prefer ungated / lower-IP-risk ASINs early.
- Keep invoices. Wholesale ungating commonly needs proper supplier invoices (itemized, recent, matching business details). Auctions/liquidation are not valid supply sources in Amazon sourcing guidance.
- Condition honesty. “New” means factory-fresh packaging standards. Shelf-worn listed as New drives “not as described” risk.
- Authenticity / IP. Unauthorized grey-market stock and counterfeits destroy Account Health. First-sale doctrine does not override Amazon platform rules.
Always re-check live Amazon Seller Central help and Sell on Amazon blog posts (wholesale sourcing, reselling, FBA, dropshipping). Policies and fees change. This guide is education, not a substitute for Amazon’s current pages or a qualified advisor.
Disclaimer: Educational only. Not income, legal, tax, or financial advice. You can lose money on inventory, tools, and subscriptions. Account restrictions and IP complaints can limit or end selling privileges. Do not use rent, emergency savings, or money you cannot afford to lose. Verify claims against Amazon’s live help pages. Integrity outranks speed.
Books that sharpen this business
Concrete decision lenses for Amazon reselling — not vague book blurbs. Use them before you buy inventory.
Map each lens to a gate already on this page
- Mom Test / Lean Startup → Step 1 Demand: prove it sells with behavior/data, not gut.
- $100M Offers → Step 2 Source + Unit economics: margin floor is part of the offer; discount ≠ profit.
- Traction → Step 4 Repeat: pick one sourcing/acquisition channel; kill losers fast.
- Psychology of Money / Fooled by Randomness → capital risk vs lucky ASIN spikes — process over one win.
- Rich Dad → inventory is a liability until it turns; steward runway before the listing story.
Also useful (chips)
Positioning vs “invent a product,” find the real constraint before scaling SKUs, ethical social proof only if true, student mindset over hustle story, systems over fantasy freedom, differentiation vs race-to-bottom.
- Competing only by lowering price → see Unit economics ($100M Offers).
- Trusting “this will sell” compliments / gut → see Step 1 Demand (Mom Test).
- Betting the business on an untested pet channel or shiny tool → see Step 4 Repeat (Traction).
- Polishing the hustle story instead of unit economics → see Consultant checklist (Ego Is the Enemy).
- What past sell-through evidence exists (Mom Test / demand tools)?
- What is the riskiest assumption in this buy (Lean)?
- Does contribution margin clear my written floor after all fees ($100M / economics)?
- Which one channel will I use to repeat this if it works (Traction)?
- Am I about to break a red line or invent a success story from one lucky unit (Influence / Ego / Fooled by Randomness)?
What did you get?
You got Kai’s middleman idea with clear credit. You got three paths and when each fits. You got his four steps expanded with fee-aware gates. You got a unit-economics worksheet, a five-point consultant checklist, hard compliance red lines, and Goldmine decision lenses tied to this business. You did not get fake income stats or a promise this is “passive.”
Open the PDF. Run one ASIN through the Goldmine gate + unit-economics worksheet this week. If the numbers do not clear your floor, walk. If they do, start small, take possession, and protect Account Health.
Credit again: Kai Karats (@kaikarats) Instagram carousel. Guide expansion: unit economics, consultant checks, and compliance red lines. Let’s discuss this in the comments.
Sell what already sells. Model the margin. Respect the red lines. Kill what does not work.
Get the PDF
Printable letter booklet. Same guide. Nav and join CTA hidden in print.