Build price from fees, not the other way around
On Amazon FBM, fees apply to the total sale amount in United Kingdom. Start with your target margin and work backward to a listing price.
Amazon FBM
United Kingdom · GBP
E-commerce
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E-commerce
Fees last updated: June 22, 2026
Amazon FBM Fee & Profit Calculator
Use this free Amazon FBM profit calculator to see exactly how much you keep after platform fees, payment processing, and product costs in United Kingdom. Enter your sale price and costs — results update as you type.
Amazon FBM UK sellers pay the same category referral fee as FBA on the item price — typically around 15% for many consumer categories — but you ship yourself, so there is no FBA fulfilment charge. Royal Mail or courier costs come out of your margin. Model referral here in GBP, then enter your real outbound postage in shipping cost paid to see true net per order.
Your numbers
Sale details
£
£
Often included in the platform fee base — not just the item price.
Your costs
£
£
Examples
Results
Net profit
£23.00
41.8% margin on £55.00 total revenue
Seller tips
Practical advice for Amazon FBM in United Kingdom.
Count shipping on both sides
What you charge the buyer and what you pay to ship both affect revenue and fee bases — model GBP amounts on each side.
Know your break-even
Run a worst-case scenario with higher COGS and full shipping before sourcing inventory.
Compare platforms
The same item may net differently elsewhere — compare Amazon FBM with other calculators in United Kingdom.
Factor in ad spend
Promoted listings are optional but real costs — weak ROAS can turn a 'profitable' sale into a loss.
Track real margins
Promotions and category rates change — re-check quarterly with updated numbers.
Understanding Amazon FBM Fees in United Kingdom
Amazon FBM (Fulfilled by Merchant) UK sellers pay referral fees on the item price but ship orders themselves — enter your postage in shipping paid. Whether you sell occasionally or full-time, knowing your true net profit on Amazon FBM in United Kingdom is essential. This free calculator models every standard charge before you list.
Amazon FBM Fee Schedule — United Kingdom (GBP)
Current standard fee structure used by this calculator:
Fees last updated: June 22, 2026
| Fee type | Rate |
|---|---|
| Referral Fee (Most categories) | 15% of item price |
Estimates for planning only — not tax, legal, or financial advice. Confirm current rates on the platform before you list or price.
Standard rates for United Kingdom. Use the calculator for category-specific eBay fees, Shop tiers, international sales, and Etsy Offsite Ads. Promotional or account-tier fees may differ.
Amazon seller fees explained — Amazon FBM United Kingdom
Referral and fulfillment fees
Amazon’s referral fee is a category-based percentage of the item price (and sometimes shipping, depending on category and program). Most consumer categories cluster around 8–15%; this calculator uses a representative rate — adjust if your category differs.
FBA (Fulfilled by Amazon) adds a fulfillment fee per unit based on size tier and weight. We model a typical small-standard parcel fee; oversize and low-price FBA tiers differ.
FBM (Fulfilled by Merchant) avoids FBA fulfillment but you still pay referral fees and manage shipping — enter your actual postage in shipping paid.
FBA vs FBM: which to model
Choose the FBA calculator when Amazon stores, packs, and ships. You’ll see referral + fulfillment + your product cost.
Choose FBM when you ship yourself — often better for oversized, slow-moving, or high-touch items if you have cheap carrier rates.
Compare both routes with scenario A/B using the same item cost and sale price to see how fulfillment choice changes net profit.
Hidden Amazon costs
Long-term storage, removal, inbound placement, returns processing, and advertising (PPC) are not in the base fee table — add PPC as ad spend per sale if relevant.
VAT-registered sellers in the EU should remember referral fees may interact with your tax reporting — this tool shows platform fees only, not income tax.
How to calculate Amazon FBM net profit
- Total revenue: Add your sale price and any shipping charged to the buyer.
- Subtract costs: Deduct COGS and shipping paid.
- Subtract Amazon FBM fees: Apply percentage and fixed fees from the table above.
- Profit margin: Net profit ÷ revenue. Many sellers in United Kingdom target 15–30% after all fees.
Common mistakes to avoid
- Pricing without shipping paid — it can wipe out margin on low-ticket Amazon FBM items in United Kingdom.
- Using item price only when Amazon FBM charges fees on total revenue (including buyer-paid shipping).
- Forgetting payment processing or fixed per-order fees on small sales.
- Listing without a target margin — fees compound quickly below 15% net.
Explore more tools: All United Kingdom calculators · All countries · Home
Frequently Asked Questions
What fees does Amazon charge for FBM sellers in the UK?
FBM sellers pay referral fees on the item price by category — the same percentage as FBA on most listings. You avoid FBA fulfilment and monthly storage, but handle packing and delivery yourself. Use this calculator for referral; add your carrier cost separately in pounds.
Is Amazon FBM cheaper than FBA in the UK?
FBM can win on oversized, slow-moving, or fragile SKUs when your shipping rates beat Amazon’s fulfilment fee. Small, fast-moving products often net more on FBA because of Prime. Compare both UK calculators with the same price and COGS to see which channel leaves more in GBP.
How do I calculate Amazon FBM net profit?
Subtract your item cost (COGS), shipping paid, and all Amazon FBM fees from your total revenue (sale price + shipping charged to buyer). This calculator does it automatically and shows your profit margin percentage.
What is a good profit margin on Amazon FBM?
Most successful marketplace sellers target 15–30% net profit margin after all fees and costs. Use this calculator to find your minimum profitable price before listing.
Does Amazon FBM charge fees on shipping in United Kingdom?
Fee bases depend on the platform's rules in United Kingdom. This calculator uses the standard fee schedule — check the fee table on this page and confirm current rates on Amazon FBM's official seller help center.
Can I use this for Amazon FBM bulk or store listings?
Yes. Enter any sale price and cost structure — the math is the same per order. Store subscription discounts or volume tiers may lower your real fees slightly.
What fees does Amazon FBM charge in United Kingdom?
Current standard fees for Amazon FBM in United Kingdom: Referral Fee (Most categories): 15% of item price. Rates may vary by account type, category, or promotions — always confirm on Amazon FBM's official site.
Does this calculator include taxes?
No. This tool covers platform fees and direct costs only. Sales tax, VAT, income tax, and self-employment taxes are not included and vary by region.
Is this calculator free?
Yes. FeeAndProfit.com is completely free. No account, email, or signup is required.
Amazon FBM internationally
Same platform, different countries