QUICK ANSWER
SellerBoard for UK FBA profit tracking. Cleaner daily P&L, better return-rate analytics, more reliable VAT handling for UK sellers, ~£15/month vs Inventory Lab's ~£40+. Inventory Lab is still the better choice if you need integrated listing creation and shipment workflow on US Amazon — but for UK, the listing creation tools have weaker UK marketplace alignment, and most UK sellers do listing work in Seller Central directly.
What each is
Inventory Lab — full-stack FBA workflow tool: listing creation, shipment building, COGS tracking, accounting reports, return tracking. ~£40-50/month UK.
SellerBoard — focused profit tracker: daily P&L, FBA fee tracking, return rate analytics, COGS upload, refund tracking. Less workflow, more dashboard. ~£15-20/month UK.
Where SellerBoard wins for UK
- Daily P&L accuracy. SellerBoard's daily P&L view is the cleanest in the UK FBA tool space. You can see net profit by SKU by day with FBA fees, referral fees, storage, advertising, and refunds all attributed properly. Inventory Lab's reports are MTD-aggregated by default and harder to drill down per-day.
- VAT handling. SellerBoard handles UK VAT cleanly — you can flag VAT-inclusive vs VAT-exclusive COGS per SKU, run UK-specific VAT reports for accountant export. Inventory Lab's VAT support has been weaker historically.
- Return-rate analytics. SellerBoard surfaces SKU-level return rate trends by week/month, with cause breakdown where Amazon provides it. Critical for SKU profitability decisions (per NikolausMoore — "even a 12% return rate at scale destroys margins").
- Cost. Roughly half to a third of Inventory Lab.
- Mobile app. SellerBoard has a usable mobile app. Inventory Lab is desktop-first.
Where Inventory Lab wins
- Listing creation workflow. If you're creating a lot of new ASINs (private label, OEM bundles), Inventory Lab's listing builder is more efficient than working in Seller Central directly.
- Shipment building. Inventory Lab's Stratify shipment workflow is more integrated end-to-end than SellerBoard's lighter-weight approach.
- Multi-channel support. Stronger if you sell on eBay, Walmart, Etsy alongside Amazon.
The honest UK reality
Most UK FBA sellers are doing OA, A2A, or wholesale on existing ASINs. They aren't creating new listings. The listing-creation advantage of Inventory Lab is irrelevant. What matters is daily P&L visibility — and SellerBoard wins.
For UK private-label sellers creating their own ASINs, Inventory Lab's workflow advantage is real. But most UK PL sellers are in Helium 10 anyway, which has its own listing tools.
Comparison table
| Feature | Inventory Lab | SellerBoard |
|---|---|---|
| Daily P&L | Adequate | Best-in-class |
| UK VAT handling | Limited | Comprehensive |
| Listing creation | Built-in | No |
| Shipment building | Stratify | Light |
| Return rate analytics | Available | Trend-aware |
| Mobile app | Limited | Yes |
| UK monthly cost | ~£40-50 | ~£15-20 |
The verdict
For UK FBA OA, A2A, wholesale, replenishment: SellerBoard. Better, cheaper, UK-aligned.
For UK FBA private label with heavy new-listing workflow: Inventory Lab — or Helium 10 if you're already paying for it.
For accountant-facing reporting, SellerBoard exports cleanly to Link My Books → Xero/QuickBooks. We cover this in UK accounting for Amazon sellers.
FAQ
Does SellerBoard work for UK Amazon sellers?
Yes — SellerBoard fully supports amazon.co.uk with UK-specific VAT handling, GBP currency, and UK FBA fee structures. Setup takes 15-30 minutes including COGS upload.
Does Inventory Lab work in the UK?
Yes, but with weaker UK VAT support than SellerBoard. Listing creation works on amazon.co.uk but the workflow is US-marketplace optimised.
How much does SellerBoard cost in the UK?
Around £15-20/month depending on tier and order volume. There's a free 1-month trial. Yearly billing knocks ~17% off.
Can SellerBoard track my COGS for OA?
Yes — bulk COGS upload via CSV, or track per-shipment COGS as you build them. Accuracy depends entirely on your input. SellerBoard cannot guess what you paid; you must enter it.
Is Inventory Lab worth it for UK private label?
If you're creating 5+ new listings per month, yes. Below that, Seller Central's listing tool is fine. For UK PL sellers using Helium 10, Helium 10's listing tools are usually sufficient.
Can I switch from Inventory Lab to SellerBoard?
Yes — both connect to Seller Central via API, so historical data populates automatically. You re-upload COGS to the new tool. Allow 2-4 hours including data validation.
Educational content from a live UK Amazon FBA operator. Not financial, legal, or tax advice — talk to a qualified UK accountant for your specifics. Tool features and prices change; check the vendor's site before subscribing.
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