A cheaper SellerAmp alternative for Amazon UK sellers
If you mainly use SellerAmp to answer one question, "is this deal profitable?", you may not need to pay for a full sourcing suite. MarginMate does that one job on the Amazon product page, for free, with VAT handled properly.
Add to Chrome – free Pro waitlist Free UK profit spreadsheet (.xlsx)Side by side
| SellerAmp SAS | MarginMate | |
|---|---|---|
| Entry price | $19.95/month | Free extension. Pro (watchlist + export) planned at $9/month |
| Lookup limit on entry plan | 1,000 lookups | No limit |
| Profit, ROI, margin, max buy price | Yes | Yes |
| UK VAT (registered and non-registered) | Yes | Yes, including VAT on Amazon fees |
| Sales estimates and price history | Yes | No |
| Account needed | Yes | No; everything stays in your browser |
SellerAmp pricing from public pricing pages and reviews, November 2026. Plans change, so check selleramp.com for current prices. MarginMate is not affiliated with SellerAmp or Amazon.
When SellerAmp is the better choice
If you scan hundreds of products a day and rely on sales estimates, price history charts and restriction checks in one place, SellerAmp and similar suites are built for that. MarginMate doesn't try to replace them.
When MarginMate is enough
- You already know how to judge demand and just want the numbers right, fast.
- You sell on Amazon UK, the EU or Canada and are tired of tools that treat VAT as an afterthought.
- You hit lookup limits, or pay every month for features you rarely open.
- You'd rather not create another account or share your data.
How the profit maths works
For a VAT-registered UK seller, MarginMate removes the 20% output VAT from the sale price, reclaims VAT on the supplier price, and subtracts the referral fee (charged on the VAT-inclusive price), the FBA fee and your prep cost. For non-registered sellers it keeps the full price but adds 20% VAT to Amazon's fees, because you can't reclaim it. The result: profit per unit, ROI, margin, and the highest price you can pay a supplier and still break even.
Want to check the maths yourself? The free spreadsheet uses the same formulas, with Amazon UK's 2026 referral fees by category.
Try it
The MarginMate browser extension is free on the Chrome Web Store and works in Edge too. Pro (unlimited watchlist and export) is next; join the waitlist to lock in the founding price of $9/month.
Add to Chrome – free Pro waitlist