The Best Amazon FBA Tools UK in 2026 — Honest Reviews from a 7-Figure Operator
I run a £100K+/month Amazon UK FBA business. Last month: £104K revenue, £14.8K profit, 23.7% ROI. Below are the exact tools I use every day, what each one actually does, what to buy first, and what to skip until you've crossed £5K monthly revenue.
The two-tier rule
Before any specific tool: most new UK FBA sellers blow £200/month on tools before they’ve made a single sale. Don’t do that. Your tool stack should expand after revenue, not before.
| Tier | When to add | Cost ceiling |
|---|---|---|
| Tier 1 — Foundation | Day one | ~£40/month |
| Tier 2 — Scaling | Once you cross £5K/m revenue | ~£100/month additional |
| Tier 3 — Optimisation | Once you cross £15K/m revenue | As needed |
Anyone telling a beginner to buy Helium 10, Tactical Arbitrage, and BuyBotPro on day one is either selling them or doesn’t actually sell on Amazon UK. Skip the noise.
Tier 1 — Foundation (day one, ~£40/month)
Keepa — €19/month (Power User)
Price + sales rank history for every product on Amazon. The single most important tool for risk mitigation in arbitrage. Without it you’re guessing whether the price you see today is normal or a temporary spike.
What I use it for: validating every potential purchase. Reading the green line (sales rank), orange line (Amazon-as-seller dominance), blue line (lowest 3rd-party offer), offer count trends, and out-of-stock percentages.
Critical: the free version hides sales rank history — the one piece of data that actually matters. Power User pays for itself in the first deal you correctly avoid.
Skip if: never. There’s no scenario where you should be sourcing on Amazon without Keepa.
ð Visit Keepa
SellerAmp SAS — £20.97/month
Instant fee + profit + eligibility checks on any Amazon UK product. You see a product, click the SAS extension, and within 2 seconds you know your margin, ROI, fees, gating status, and IP risk indicators.
What I use it for: every sourcing decision. SAS is the speed multiplier — it turns a 3-minute manual fee calculation into a 2-second decision.
Pairs with: Keepa. SAS pulls Keepa data inline so you don’t have to flip tabs.
Skip if: never (same as Keepa).
ð Visit SellerAmp SAS
Honey / Coupert — Free
Auto-applies coupon codes at checkout when sourcing online. One of the discount-stacking layers in the Method FBA OA system. Free to use, takes 30 seconds to install.
ð Visit Honey
Tier 2 — Scaling (after £5K/month revenue, ~£100/month additional)
Ascent Repricer #AD
AI-driven Amazon repricer that maximises profit by selling above the Buy Box when demand allows. Beats race-to-bottom repricers by intelligently competing rather than just undercutting.
What I use it for: every SKU once it has stable sales velocity. At scale, manual pricing isn’t feasible — and basic repricers will erode your margin within weeks.
Skip if: you have fewer than 20 active SKUs. The setup overhead isn’t worth it under that volume.
ð Try Ascent Repricer
Invenno Dashboard #AD
Real-time profit tracking, sales velocity, and inventory performance. Replaces the slow, fragmented data inside Amazon Seller Central with a single dashboard you actually want to look at.
What I use it for: every morning. Invenno is the dashboard I check first to see overnight sales, refunds, fee changes, and aged stock alerts.
Pairs with: Link My Books or Xero for accounting reconciliation downstream.
ð Visit Invenno
Tier 3 — Optimisation (after £15K/month revenue, as needed)
GETIDA — Commission-based #AD
Audits Amazon for lost inventory and fee overcharges 24/7, then files reimbursement claims on your behalf. Takes a percentage of recovered funds — no upfront cost, no monthly fee.
What I use it for: running passively in the background. Most established UK FBA sellers leave £500-£3,000/year on the table because they don’t have time to chase Amazon’s inventory errors. GETIDA chases them automatically.
Skip if: you’re still pre-£10K/m revenue. The reimbursement volume isn’t high enough to justify the commission share at smaller scale.
ð Visit GETIDA
Source 2 Store (UK Prep Centre) #AD
UK-based FBA prep and storage. Outsource your prep when you cross 100+ units/week. Frees 10-15 hours per week for higher-leverage work.
What I use it for: all OA and wholesale stock that doesn’t need bespoke handling. The cost is justified the moment your hourly rate exceeds the prep cost.
Skip if: you’re still doing under 100 units/week. The fixed costs don’t flex down.
ð Visit Source 2 Store
Banking, credit and cashflow tools
Wise Business #AD
Mid-market FX rates for international supplier payments. Multi-currency balances. Essential the moment you start sourcing internationally. Replaces eye-watering high-street bank FX fees.
ð Open a Wise Business account
Capital on Tap #AD
Working capital credit card for stock purchases. 1% cashback. Pay off monthly to avoid interest. Builds credit history fast.
How I use it: primary stock purchase card. The 1% cashback is unconditional, the limits scale fast, and the credit history build is a bonus when you later apply for a startup loan or supplier line of credit.
ð Visit Capital on Tap
Amex Business Gold #AD
Reward-heavy business credit card with Section 75 protection on stock purchases. Bigger limits as you build history. Free for the first year.
ð Apply for Amex Business Gold
Discounts and cashback
TopCashBack #AD
Bonus cashback on online stock purchases. Treat as windfall, never as profit. Adds up to real money over a year.
Critical rule: never count cashback in your ROI calculation. The deal must be profitable without the cashback. Treat it as bonus capital.
Operations and team
Onlinejobs.ph — Free to browse
Where I hire VAs. Sourcing, admin, customer support. The Filipino VA market is the best price-to-skill ratio for UK FBA operators. Job descriptions and screening test in the £299 video course.
ð Visit Onlinejobs.ph
Tools I deliberately don’t use (or wouldn’t recommend yet)
| Tool | Why I skip it |
|---|---|
| Helium 10 | Built primarily for private label sellers. If you’re pure OA/A2A, 80% of features don’t apply. Wrong tool for the wrong stage. |
| Tactical Arbitrage | Brilliant tool — wrong if you’re pre-£5K/m revenue. You haven’t built the manual sourcing skill it’s designed to amplify yet. Add at Tier 2. |
| BuyBotPro | Largely duplicate functionality vs SellerAmp at lower utility. Pick one — SAS’s interface is cleaner and pairs better with Keepa. |
| Sellerise | Profit tracking is fine but Link My Books + Xero does it cheaper and more accurately for UK Amazon settlement data. The AI layer is wrapper-thin. |
| Source Mogul / OAGenius | Overlaps too much with Tactical Arbitrage and Keepa Product Finder. Pick one sourcing automation tool, not three. |
| "AI for Amazon" tools at £40-100/m | Most are ChatGPT prompts wrapped in a UI. Pay £20/m for Claude or ChatGPT directly, save 3 reusable prompts, replicate 80% of those tools. Own the prompts forever. |
Total monthly tool spend by stage
| Stage | Tools | Monthly cost |
|---|---|---|
| Day one (pre-revenue) | Keepa Power User + SellerAmp SAS | ~£40/month |
| £5K/m revenue | Above + Ascent Repricer + Invenno + Wise + Capital on Tap | ~£140/month |
| £15K/m revenue | Above + GETIDA (commission) + Source 2 Store (variable) + Amex Business Gold | ~£200/month + variable |
Most "guru" recommended stacks land somewhere between £350-£600/month. Mine is £40 day one, scaling slowly. The difference compounds — that’s £3,720 saved in year one alone, available to deploy as stock instead of subscriptions.
Want the full playbook?
The £29 ebook covers the exact decision framework for when to add each tool. The £299 video course shows me using each one live. The £2,499 mentoring includes my exact stack with configs and SOPs.
SEE ALL OPTIONS →Frequently asked questions
What’s the minimum tool budget to start Amazon FBA UK?
£40 per month — Keepa Power User (€19/m) + SellerAmp SAS (£21/m). Anything more in your first 90 days is wasted. The two foundational tools pay for themselves in the first deal you correctly action or correctly avoid.
Do I need Helium 10 to sell on Amazon UK?
Only if you’re building a private label brand. For OA, A2A, or wholesale arbitrage, 80% of Helium 10’s features won’t apply. You’re paying for a tool stack designed for a different business model.
Is Keepa’s free version enough?
No. Free Keepa hides sales rank history — the one piece of Keepa data that actually matters for sourcing decisions. €19/month for Power User is the floor.
When should I start using a repricer?
Once you have 20+ active SKUs and stable sales velocity. Below that, the setup overhead outweighs the benefit. When you do start, use an intelligent repricer like Ascent — basic race-to-bottom repricers will erode your margin within weeks.
Are AI tools worth paying for as an Amazon seller?
£20/month for Claude or ChatGPT directly — yes. £40-100/month for "FBA-specific AI" tools — almost never. Most are ChatGPT prompts wrapped in a UI. Save 3 reusable prompts, you’ve replicated 80% of those tools at a fifth of the cost.