Understanding Amazon FBA
Amazon reselling is the business of sourcing products from wholesale suppliers, manufacturers, or retail stores, then selling them on Amazon.co.uk for profit. You purchase inventory at a lower price, list it on Amazon with a markup, and when it sells, you pocket the difference. This model doesn't require you to create or manufacture products yourself — you simply identify market opportunities and fulfill customer demand. Successful Amazon resellers combine product research, competitive pricing strategy, and effective logistics to build sustainable, profitable businesses. Many sellers use Amazon's FBA service to handle the fulfillment side, allowing them to focus on sourcing and marketing.
FBA stands for Fulfilment by Amazon. When you use FBA, you send your inventory to Amazon's fulfillment centres. You no longer handle picking, packing, or shipping — Amazon does all of that for you. When a customer buys your product, Amazon automatically picks it from their warehouse, packages it, and ships it to the customer. Amazon also handles customer service inquiries, product returns, and refunds on your behalf. In return, you pay fulfillment fees per unit sold, storage fees for inventory stored in their warehouses, and a referral fee (typically 15% of the sale price). The major advantage is that FBA products are eligible for Prime delivery, which significantly boosts visibility, conversion rates, and customer trust on Amazon.co.uk.
FBM stands for Fulfilled by Merchant. With FBM, you handle all aspects of fulfillment yourself — you keep inventory in your own storage, pick and pack orders, and arrange shipping directly to customers. You keep more of the profit per sale since you avoid Amazon's fulfillment fees (though you still pay the referral fee). However, FBM comes with significant responsibilities: you must respond quickly to customer inquiries, process returns yourself, and manage your own logistics network. FBM products are not Prime-eligible unless you opt into Amazon's Seller Fulfilled Prime (SFP) program. FBM works best for sellers with low order volumes, very large/heavy items that don't qualify for FBA, or those willing to invest heavily in their own logistics infrastructure.
Seller Fulfilled Prime (SFP) is a middle ground between FBA and FBM. With SFP, you handle fulfillment yourself (like FBM), but your products are still eligible for Prime delivery because you meet Amazon's strict shipping time and reliability standards. To qualify for SFP, you must maintain a very high on-time delivery rate (99%+), accept returns easily, and ship items within 1-2 days. SFP requires investment in reliable logistics and customer service infrastructure, but it gives you the benefits of Prime eligibility without paying FBA fees. This model suits sellers with strong operations, regional fulfillment networks, or those selling oversized items. SFP requires Amazon approval and ongoing compliance with their performance metrics.
Choose FBA if: You want to scale quickly, avoid handling logistics, and maximize Prime eligibility. You're okay paying fulfillment fees (typically 2-4 per unit for standard-size items) in exchange for Amazon's operational excellence. Most UK Amazon sellers choose FBA for its simplicity and conversion benefits.
Choose FBM if: You have very low order volumes, sell oversized/heavy items, operate with tight margins, or want complete control over fulfillment. You're comfortable managing your own shipping and customer service. FBM has lower per-unit costs but higher operational burden.
Choose SFP if: You have a well-established fulfillment operation, can maintain 99%+ on-time delivery, and want Prime eligibility without FBA fees. This requires significant infrastructure investment. SFP is best for sellers scaling beyond FBA or those with specialized fulfillment needs.
For most beginners in the UK, FBA is the recommended starting point because it removes operational friction and gives you access to Prime customers from day one.
There's no absolute minimum, but starting capital depends on your strategy. At the bare minimum, you need: a Professional seller account (39.99/month), initial inventory (typically 500-2000 GBP for a test product batch), and prep costs if you use a prep centre like Precision (around 45p-1 per unit). Most beginners start with 2000-5000 GBP total to source, prep, and ship their first batch. Some sellers start with 1000 GBP and begin smaller; others invest 10000+ GBP to launch multiple SKUs immediately. The key is having enough capital to handle at least one full inventory cycle without revenue: sourcing costs + prep fees + storage fees until your first sales come in. Many new sellers use a prep centre to reduce operational burden, which adds cost but saves time and improves quality. Never start with money you can't afford to lose during your learning phase.
Yes. Amazon.co.uk continues to be one of the largest e-commerce marketplaces in Europe, with millions of customers actively buying every day. Prime membership is mainstream, and Prime-eligible products (which FBA provides) still convert significantly better than non-Prime options. The market is more competitive than it was in 2020, but opportunity remains for sellers who execute well. However, success requires: thorough product research to find items with real demand and reasonable competition, competitive margins (typically 25-40% gross profit on standard products), and willingness to invest in marketing (PPC) to get visibility early. FBA removes operational headaches, but it doesn't guarantee profit — your success depends on your sourcing, pricing, and marketing skills. Many established UK sellers are still profitably scaling on Amazon, but the days of passive income with zero effort are over. If you're willing to work hard and learn the game, FBA remains worth the investment.
Inventory risk: You invest capital upfront, and if your product doesn't sell, you've tied up cash. Long-term storage fees can erode margins quickly on slow-moving inventory.
Account suspension: Amazon suspends accounts for policy violations (counterfeit products, unsafe items, prohibited categories, policy violations). A suspension can destroy your business overnight. Always understand Amazon's policies.
Competition: Successful niches attract competitors who may undercut your price. You need sustainable differentiation — better sourcing, branding, or customer experience — not just cheap inventory.
Price wars: Larger sellers or those with better sourcing can drive prices down. If your margins can't survive a 10-20% price drop, you're vulnerable. Build products with defensible pricing.
Market changes: Trends shift, demand fluctuates, and consumer preferences evolve. Relying on one product category is risky. Successful sellers diversify.
Fee increases: Amazon periodically raises referral fees and fulfillment fees. Your 40% margin product today might be 25% next year if fees change.
Cashflow challenges: Amazon holds your funds for 14 days after shipment, so you might wait 4-6 weeks to see money. Without adequate capital reserves, this can strain your ability to source new inventory.
This varies widely based on execution, capital invested, and time commitment. In your first month or two, expect to make little or nothing while you focus on sourcing and launching your first product. Many beginners take 8-12 weeks to get their first sale after launch. Once you start getting traction, realistic expectations for a beginner's first year: by month 6, you might generate 500-2000 GBP in revenue per month (not profit). By month 12, successful beginners often reach 2000-5000 GBP monthly revenue with 20-35% net profit margins (after all fees, costs, and your time). However, some beginners give up at month 3 because they haven't found a winning product yet. Others scale to 10,000+ GBP monthly revenue within a year by launching multiple products and running PPC campaigns. The key difference between successful and unsuccessful sellers is persistence through the research and testing phase, then doubling down on what works. Your first six months should be a learning investment, not an income expectation.
Business Setup
Sole Trader: You're self-employed, trading under your own name or a business name. Setup is free and takes 5 minutes online. You keep 100% of profits after tax. However, you have unlimited personal liability — if something goes wrong (product liability, lawsuit), your personal assets are at risk. Accounting is simpler. Most beginners start as sole traders because there's no setup cost or administrative burden.
Limited Company: You form a separate legal entity. You're a director, and the company is the business. Setup costs 10-50 GBP online (or more with accountants). You have limited personal liability — the company's assets are at risk, but not your personal savings. You must file annual accounts. However, you benefit from corporation tax (currently 25% on profits over 250,000 GBP) which can be more efficient than self-assessment tax for higher earners. Limited companies appear more professional to partners and lenders.
Recommendation for Amazon sellers: Start as a sole trader if you expect to make less than 50,000 GBP profit per year. Switch to a limited company when profit exceeds 50,000 GBP annually or if you're concerned about liability and scaling. Always consult an accountant before deciding — the right choice depends on your projections and risk tolerance.
Step 1: Choose your company name — Check Companies House to ensure it's available. Your name should ideally include "Limited" or "Ltd". You'll need a registered office address (can be your home address).
Step 2: Register with Companies House — Visit companieshouse.gov.uk. File your memorandum and articles of association (you can use standard templates). Pay the registration fee (10-40 GBP depending on speed). Processing takes 1-4 days.
Step 3: Register for Corporation Tax — HMRC contacts you automatically after Companies House registration. You can also register online at hmrc.gov.uk. You'll receive a Unique Tax Reference (UTR).
Step 4: Open a business bank account — Use your Companies House certificate and UTR to open an account with any UK bank. You'll need ID, proof of address, and confirmation of director details.
Step 5: Set up payroll (optional) — If you're paying yourself a salary, register for PAYE. If you're just taking dividends, you don't need payroll.
Step 6: Register your Amazon Seller account — Use your company name, registered office address, bank details, and tax details to set up your Professional seller account.
The entire process takes 1-2 weeks and costs 10-100 GBP (depending on speed and bank charges). Consider hiring an accountant to handle annual filings (typically 500-1500 GBP per year) once your company is operating.
The optimal switchover point depends on your profit level and risk tolerance. Tax efficiency: If you're projecting profit above 50,000 GBP per year, a limited company becomes more tax-efficient because corporation tax (25% over 250,000 GBP) plus dividend tax often results in lower overall tax than self-assessment income tax (20-45%). Calculate with your accountant. Liability concerns: If you're selling products with potential liability issues (electrical items, consumables, items used by children), forming a limited company protects your personal assets. Growth trajectory: If you're scaling and planning to sell multiple products or hire staff, a limited company provides a cleaner legal structure for partnerships and investment. Practical recommendation: Switch when profit consistently exceeds 40,000-50,000 GBP per year, or immediately if you're concerned about liability. The cost of conversion (10-50 GBP for online registration) is minimal compared to tax savings. Always consult your accountant to model your specific situation.
Step 1: Create an Amazon account — Go to amazon.co.uk/selling. If you already have a personal Amazon account, you can use the same email (you can separate them later). Alternatively, create a new email address dedicated to your business.
Step 2: Choose your seller plan — Amazon offers Individual (0.99 GBP per sale, no monthly fee, limited features) and Professional (39.99 GBP monthly fee, unlimited listings, all features). Start with Professional immediately if you're serious — the features (bulk product uploads, advertising, FBA, detailed analytics) justify the monthly cost.
Step 3: Verify your identity — Provide your full legal name, address, phone number, and email. Amazon sends a verification code to your email. Enter it to confirm.
Step 4: Add your business information — If you're a sole trader, use your personal details. If you're a limited company, provide your registered office address, company number, and company tax reference.
Step 5: Add payment method — Link your business bank account to receive payouts. Amazon pays you every 2 weeks by default. You'll need your bank sort code and account number.
Step 6: Add tax information — Provide your tax reference (UTR for Limited Company) or Self-Assessment tax reference (for sole traders). This is mandatory for FBA sellers.
Step 7: Review your settings — Check Seller Central > Settings > Account Information. Set your default shipping methods, notification preferences, and confirm FBA participation is enabled.
The full process takes 10-20 minutes. Your account is immediately active, though you can't list products until step 3 (identity verification) is complete.
Individual Plan (0.99 GBP per sale): No monthly subscription. You pay 0.99 GBP commission on every sale you make. Limited to selling in 8 product categories without restrictions. No access to bulk uploading, FBA, PPC advertising, or Seller Central reports. Cannot create brand pages or sponsored products. Only suitable for casual sellers testing the market with a few items.
Professional Plan (39.99 GBP per month): Fixed monthly fee regardless of sales. Includes FBA access (essential for scaling), bulk uploading tools, PPC advertising, detailed analytics and reports, most product categories (thousands of them), brand registry eligibility, and API access for automation. The 39.99 GBP fee is typically recovered within 40-50 sales (depending on price point). Professional sellers benefit from better buy box eligibility and customer trust signals.
Recommendation: Start with Professional immediately if you're serious about building a real business. The features justify the cost, and it signals professionalism to customers. The only reason to use Individual is if you're testing a single product or selling casually. Anyone planning to use FBA must have a Professional account.
Essential Terminology
ASIN (Amazon Standard Identification Number): A unique 10-digit code Amazon assigns to every product on their marketplace. If you sell the same product as someone else, you share the ASIN and appear on the same listing. Critical for research and ensuring you're selling the right product.
FNSKU (Fulfilment Network Stock Keeping Unit): Amazon's barcode for tracking your specific inventory within their warehouses. Each FNSKU ties directly to your seller account. Amazon generates this label for you; you print and attach it to your products. Essential for FBA.
Buy Box: The prominent white box on the right side of an Amazon product page where customers click "Add to Basket." Winning the buy box (appearing in that box) dramatically increases your sales. Amazon awards it based on price, seller rating, fulfillment method (FBA wins), and availability. Losing the buy box to a competitor with better terms can cut your sales significantly.
BSR (Best Sellers Rank): Amazon's ranking of products by sales volume within a category. Lower BSR = higher sales (BSR 1 is the best seller). A product with BSR 100 in "Kitchen Gadgets" outsells one with BSR 1000 in the same category. Use BSR to gauge competition and demand.
SKU (Stock Keeping Unit): Your internal product code. Different from ASIN. You create SKUs to track your own inventory. Essential for managing multiple variations (sizes, colors, etc.) and accounting.
UPC/EAN (Universal Product Code / European Article Number): Standard barcodes on physical products. UPC is used in North America; EAN is used in Europe. Required to register new products on Amazon (especially for gated categories). Some products come with existing UPCs; others you must purchase unused UPCs for new products.
ROI (Return on Investment): The profit you make per unit divided by what you spent to source and launch it. If you spend 5 GBP sourcing/prep and profit 3 GBP per sale, your ROI is 60%. Target 30-50% ROI per product; anything less doesn't justify the effort.
Referral Fee: Amazon's commission on every sale, typically 15% of the product price (varies by category). Mandatory fee you pay on all sales (FBA or FBM). Factored into your pricing calculations.
Fulfillment Fee: Amazon's charge per unit sold through FBA, typically 2-4 GBP for standard-size items (varies by weight and dimensions). Larger or heavier items incur higher fees. Critical to calculate before sourcing.
Long-Term Storage Fee: Penalty fee for products stored in Amazon warehouses too long without sales. Incentivises sellers to keep inventory moving. Check Amazon Seller Central for current rates — this can be a profit killer for slow-moving stock.
PPC (Pay-Per-Click): Amazon's advertising system. You bid on keywords; when your ad is clicked, you pay Amazon. The cost per click depends on competition. Essential for getting visibility on new products. A target ACoS (below) of 20-30% is typical for profitability.
ACoS (Advertising Cost of Sale): The percentage of your sales revenue spent on PPC advertising. ACoS = (PPC Spend / PPC Sales) × 100. If you spend 20 GBP on ads and generate 100 GBP in sales, your ACoS is 20%. Target 15-30% ACoS for profitability; above 40% means your ads are uneconomical.