Running an Amazon Store

Written 21 October 2026
11 min read

An Amazon sale can leave money toward your costs without funding the next shipment. Stock payments, advertising bills and marketplace payouts happen at different times. Plan for the next order, not just the launch.

This guide is SmallBizSim's own summary of public information and does not constitute business, financial, legal or tax advice.

Illustrated amazon store business-theme artwork.

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Scope

Know what remains your responsibility

An Amazon store is a product-selling business using someone else’s marketplace. You choose the offer, source it reliably, keep permission to sell and turn inventory into usable cash. Outsourcing delivery does not outsource those decisions.

Your business address, Amazon marketplace, inventory location and customer destination are separate facts. Establish them before choosing fees or tax assumptions.

Many cited sources are Amazon’s service and policy pages. They explain the platform, not typical seller profitability.

Business model

Choose your sourcing model

Private label, wholesale and retail resale describe how you source goods.¹²³ Fulfilment by Amazon, or FBA, describes how orders are handled.⁴ Choose the sourcing model, then decide between FBA and seller fulfilment.

Private label

A manufacturer makes products carrying your brand.

You control: product specifications, packaging and brand positioning, subject to your supplier agreement.

You fund: product development, samples, packaging, compliance work and inventory.

Your work: managing quality, suppliers, product claims, listings, promotion and replenishment.

Wholesale resale

You buy existing products from a brand or wholesale supplier.

You control: supplier selection, purchase quantities and your offer, with less control over the product itself.

You fund: stock, including any bulk-order commitment.

Your work: verifying authenticity and selling eligibility, monitoring competing offers and keeping supply dependable.

Retail resale or arbitrage

You buy existing goods from retail sources for resale.

You control: which available goods you buy and how much you commit.

You fund: stock purchases. Availability may not support repeat orders.

Your work: finding supply, checking documentation and eligibility, pricing, returns and inventory management.

Acquire an existing operation

You control: only the assets and rights the deal delivers.

You fund: the purchase price, transaction and transition work, plus ongoing inventory.

Your work: verifying records, preserving supply and quality, and making the marketplace transition feasible.

These models involve different commitments. Wholesale avoids product development, but bulk purchases can still tie up cash. Private label gives you more product decisions—and more work and risk. Retail resale avoids manufacturing development, but you still need goods you can list and replenish reliably.

Amazon’s US account-transfer policy says seller accounts generally are not transferable. When business ownership changes, the new owner must establish a new account.⁵ Do not assume the seller’s account history, feedback or access comes with the purchase. Confirm the exact deal structure with the relevant marketplace before signing; the US policy does not establish identical treatment in every store.

Ask for underlying records, not just dashboard screenshots or claimed profit.

Acquisition records to verify

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Reconcile orders, refunds, marketplace charges and disbursements with accounting and bank records.
Review results by product, including advertising expenditure, returns and stock condition. Aggregate revenue can conceal a weak product range.
Check account notices, listing restrictions and unresolved sourcing or compliance requests.
Identify who owns the trademarks, designs and listing content, and which rights can be assigned.
Verify supplier continuity, current purchase terms and the inventory included in the price.
Prepare an asset-by-asset transition plan covering accounts, brand rights, stock, suppliers and operational access.

An operating history gives you records to investigate. You still need to verify them and fund the next order.

Fulfilment

FBA handles parcels, not stock decisions

Amazon’s US FBA description says Amazon receives and stores inventory, picks, packs and ships orders, and handles customer service and returns. You still choose and fund products and manage replenishment.⁴

Compare FBA with seller fulfilment using the product’s dimensions, weight, selling price and shipping requirements. Amazon’s Revenue Calculator estimates platform costs, not the complete business forecast.⁶

Choose the arrangement that delivers the product reliably at a cost and workload you can support. For either option, use the destination marketplace’s current service terms and fee tools.

Illustration of parcels being handed into a warehouse while a seller keeps a clipboard for stock and reorders. — Amazon can handle the parcels; the seller still owns the stock decisions.

Costs to examine for each arrangement

FBA

Examine fulfilment charges alongside storage, inbound preparation and the cost of dealing with unwanted stock.

Seller fulfilment

Account for packing materials, delivery charges, handling labour, storage and customer-service work.

Money

Separate contribution from available cash

Track what each product earns separately from when payments fall due:

Item	Product-economics view	Cash-timing view
Customer sale	Revenue attributable to the order, after discounts and excluding tax collected for remittance	When the transaction becomes available for settlement and reaches the bank
Product and inbound costs	The sold unit’s share of purchase, freight, import and preparation costs	Supplier deposits, balances, freight and import payments may fall before stock sells
Marketplace and fulfilment charges	Applicable variable charges for the order	Check actual deductions or separate debits in account reports
Advertising	State the attribution or allocation method used to judge product contribution	Track actual advertising bills separately; spending need not coincide with completed orders
Refunds and returns	Adjust revenue, retained fees and product loss according to the actual outcome	Track the customer refund, any fee credit, stock disposition and reimbursement separately
Subscriptions, storage, tools and labour	Keep time-based costs and overhead visible; state any allocation to products	Record when each bill or wage payment is due

To calculate product contribution, start with net order revenue. Deduct landed unit cost, variable marketplace and fulfilment charges, and advertising and return costs attributable to those sales. State any allocations. A monthly subscription is not inherently a per-order charge, and a supplier deposit is not an extra expense on top of product cost.

Then check whether total contribution covers storage, subscriptions, tools, labour and other ongoing commitments. A product can contribute something without supporting the business.

Amazon’s US Payments Summary separates sales, refunds, expenses, advertising, reserves, deferred transactions and disbursements.⁷ Sales shown in an account are therefore not necessarily cash available for a supplier payment.

The next order may be due before settlement

Lay out each purchase order’s cash events: deposit, balance due, freight, import payments, inbound preparation, advertising charges and expected marketplace receipts.
Copy dates and currencies from supplier and logistics documents. There is no universal supplier payment schedule across these countries.
Add the next reorder before treating the current batch’s sales as spendable income.

You may need to pay for replenishment while current units are still in transit, unsold or awaiting settlement. The two batches then overlap: the next order needs funding before the current batch releases usable cash.

A marketplace seller reviews a new supplier order beside remaining stock and parcels still awaiting fulfilment, showing two stock commitments overlapping. — The next stock order may need funding while the current batch is still moving toward settlement.

US marketplace only: Amazon documents a standard delivery-date reserve of seven days after delivery, which may be extended.⁸ That is not a promise that money reaches the bank that day. Do not apply the same reserve period to other marketplaces without checking the account terms.

Advertising has its own payment stream. Amazon Ads says payment methods depend on account type, and charges use the currency of the marketplace where the ads were created.⁹ Check whether charges draw on seller-account funds or another payment method.

Under Amazon’s US FBA guidance, returned units are inspected. Sellable stock can return to inventory; unsellable stock has different handling and possible reimbursement outcomes.¹⁰ Count a reimbursement as cash only once approved and received. Do not assume every returned unit can fund another sale.

Permission

Check selling permission before buying stock

A fee estimate does not establish listing eligibility or access to proceeds. Check product approval, sourcing records, account verification and review-policy compliance in the destination store.

Amazon’s US guidance says restrictions can attach to a product identifier, known as an ASIN, a brand, a category or a subcategory. Some products require multiple approvals.¹¹ Check the exact product before buying inventory and provide the documents requested in its application.

Amazon’s US responsible-sourcing guidance can require records tracing goods through the full supply chain to the original manufacturer. Failure to provide requested information by the deadline can lead to listing restrictions and payment withholding.¹² A cheap source is not useful if you cannot substantiate the goods.

Amazon’s Australian onboarding guidance requires identity, address and business verification. Document options depend on the seller’s business type and location.¹⁴

Amazon’s older UK restrictions document warns that other stores may have different restrictions.¹⁵ Do not use it as a current product-eligibility list. US guidance also describes account-level reserves and possible withholding after deactivation.¹⁶¹⁷ These affect trading and cash access, not just costs.

Countries

Map the route before choosing costs and rules

Route facts to record

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The seller’s country.
The Amazon store used.
Where goods are manufactured.
Where stock is held.
Where customers receive it.
For cross-border shipments, the proposed importer, plus route-specific freight and import advice obtained before committing.

Use the marketplace’s fees and currency

Cost basis by seller or marketplace

AU Australia

Amazon.com.au: use the Australian schedule in Australian dollars (AUD). Plan, category, fulfilment and international-store participation affect costs.¹⁸ Check GST treatment separately.

CA Canada

Amazon.ca: use the Canadian schedule in Canadian dollars (CAD). Selling-plan and referral fees are distinct from optional FBA and advertising costs.¹⁹

GB United Kingdom

Amazon.co.uk: use the UK schedule in pounds sterling (GBP). Plan, category and fulfilment strategy affect costs.²⁰ Assess VAT separately.

US United States

Amazon.com: use the US schedule in US dollars (USD). Include the relevant plan, referral fees and services used.²¹

NZ New Zealand

New Zealand-based seller: first confirm the available marketplace, account and delivery arrangement with Amazon. Use that store’s fee currency. Do not assume New Zealand dollars (NZD) or Australian fees apply. Track currency conversion and bank costs separately.

Obtain a current fee estimate for the product’s category, dimensions, weight, price and fulfilment route. Keep marketplace and currency records separate when selling internationally.

Stock location can change the tax question

Transaction tax by country

AU Australia

In Australia, separate responsibility for GST from the seller’s registration requirement. ATO guidance distinguishes goods imported after a consumer order from goods already held in Australia when sold.²² Its electronic distribution platform ruling says the marketplace liability shift does not apply where goods are sourced within Australia or the merchant is the importer.²³ In those circumstances, the merchant—not the marketplace—is responsible for the GST position.

This does not mean every overseas seller holding Australian stock must register or charge GST. For a non-resident business carrying on an enterprise, compulsory registration generally applies when Australian-connected GST turnover reaches A$75,000.²⁴ GST turnover follows the ATO’s rules; it is not profit. Registration is generally optional below the threshold if no other compulsory-registration rule applies.²⁵

A seller already registered, or required to register, must determine which sales are taxable and account for GST on those sales. Australia’s GST rate is 10%, but not every product or supply is taxable.²⁴ Some Australian-stock sales through Amazon involve supplies where the marketplace is not responsible for GST. Do not exclude those sales from registration turnover for that reason alone. Before choosing an Australian warehouse, confirm the stock and import arrangement, registration status and product treatment.

NZ New Zealand

In New Zealand, Inland Revenue explains that a responsible marketplace may collect GST on qualifying low-value imported-goods transactions.²⁶ Confirm the responsible party and qualifying conditions. Do not assume you always collect it or that Amazon handles every obligation.

CA Canada

In Canada, CRA guidance describes GST/HST collection by registered platforms for qualifying goods sold for vendors not registered under the normal regime.²⁷ Seller registration, provincial taxes and import treatment need separate checks.

GB United Kingdom

In the United Kingdom, HMRC guidance distinguishes seller establishment and the goods’ location at sale.²⁸ Check the seller-specific VAT position before placing stock in UK fulfilment. Northern Ireland can require a different analysis for some transactions.

US United States

In the United States, marketplace sales-tax collection is state-specific. New York’s guidance describes that state’s marketplace-provider collection rules, not a nationwide rulebook.²⁹

Check customer rights and product safety

Australia: the ACCC says overseas businesses selling directly to Australian consumers must follow Australian Consumer Law, including consumer guarantees.³⁰ New Zealand: the Commerce Commission explains that online consumer-law requirements can apply to overseas businesses selling to New Zealand consumers.³¹

New Zealand’s product-safety standards vary by product.³² Health Canada’s guidance covers supply-chain roles including importers, distributors and retailers.³³ US CPSC guidance tells retailers to obtain supplier compliance documentation.³⁴ Check the rules for the actual product, including required testing, labels and claims, in each destination.

For UK sales, obtain current UK product-safety and consumer-rights guidance separately from HMRC tax guidance. Amazon approval and legal product compliance are separate checks.

Testing

Use the first test to decide what to buy next

Competitor listings show how others position an offer, not your conversion rate, advertising cost or repeat purchases. Do not assume repeat demand for a product customers buy only occasionally.

A controlled launch should record realised selling prices, actual marketplace deductions, advertising expenditure, return reasons, stock condition and management time. Limit the commitment to what you can fund through the stock and settlement cycle. Even a small test may be uninformative if its listing, quality or sourcing does not reflect the intended operation.

Before increasing inventory, answer these questions with records.

Before increasing inventory

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Can this account sell this product in the intended store, with adequate sourcing and compliance documentation?
What does the product contribute after actual selling, fulfilment, advertising and return costs?
What remains after overhead and owner work are accounted for?
When must the next stock order be paid, and what cash will actually be available then?
Can the supplier repeat the required quality and delivery arrangement?

If an answer is missing, reduce the next commitment or investigate the gap first. Aim for a repeatable product, supply and cash cycle worth funding—not simply a launch.

Summary

Key takeaways

Choose sourcing and fulfilment as two separate decisions.
When buying an operation, verify the assets, records and rights. Amazon’s US policy generally does not allow seller-account transfers; confirm the exact deal with the relevant marketplace.
Contribution, payouts and profit are different things. Map stock, freight, advertising and settlement dates.
Confirm listing approval, sourcing documentation and verification before buying inventory.
Use the destination marketplace’s fees and currency, and check the route’s tax, consumer and product-safety rules.
Limit the first test to a commitment you can fund through the stock and settlement cycle.