Link My Books and A2X do the same job: take each marketplace settlement, break it into sales, refunds, fees and tax, and post a summarized entry to your accounting software that matches the bank deposit exactly. Both are good at it. Both are the kind of tool you set up once and stop thinking about. Which is why choosing between them comes down not to "which is better" but to four concrete differences that either matter to your business or don't.
A warning about researching this pair: most of the top-ranking comparison articles are written by the two vendors about each other. Link My Books runs a blog post attacking A2X's pricing; A2X has a counter-page. Treat both as ads. What follows is built from their official docs, their app-store reviews, and what each company's own support pages admit.
Difference 1: how the bill scales
A2X prices per channel. Amazon is a plan, Shopify is a plan, eBay is a plan — or you take a multi-channel plan whose tiers climb with combined order volume and channel count. Link My Books prices once, on total order volume across everything you connect, using a rolling average of your recent months.
For a single-channel Amazon seller the difference is small. For a seller running three or four channels at modest volume, Link My Books usually comes out cheaper, and the gap is the single most common reason people switch. Two things keep this honest: A2X's entry tiers are inexpensive if one channel is all you need, and Link My Books raised prices across the board on July 1, 2026 — so don't decide on remembered prices; run both calculators with your actual order counts.
Difference 2: TikTok Shop
Link My Books supports TikTok Shop as a first-class integration: it pulls each settlement when TikTok pays out, separates seller-liable tax from marketplace-collected tax, and posts an entry that matches the deposit. A2X does not have a TikTok Shop integration as of mid-2026 — its documented workaround routes TikTok orders through Shopify, and A2X's own support article warns that TikTok can add or subtract settlement items that never become visible to Shopify. If TikTok Shop is one of your channels, this difference alone probably decides the question. (One fairness note: even with a native integration, TikTok's settlement data is messier than Amazon's — an independent UK accountancy that works with both tools describes TikTok as still needing a more hands-on approach in 2026. Native support shrinks the problem; nothing eliminates it. We wrote up why in our TikTok settlement report guide.)
Difference 3: what's on the other end
Link My Books posts to Xero and QuickBooks Online. Full stop. A2X also posts to NetSuite and Sage. If you're at the size where NetSuite is a real conversation — or your accountant is pushing you there — A2X is the only one of the two that comes with you. This is the mirror image of the pricing difference: Link My Books wins small multi-channel, A2X wins large.
Difference 4: VAT philosophy
Both handle VAT correctly when configured correctly. The difference is who does the configuring. Link My Books runs a guided setup that asks plain-language questions about your VAT registration and product mix, then assigns rates — including product grouping for standard, reduced and zero-rated goods. It was founded in the UK by an ex-Amazon seller and it shows; an independent UK accounting firm recommends it for the large majority of UK-based sellers. A2X exposes more granular control — including reverse-charge handling on marketplace fees across multiple jurisdictions — but expects you (or your accountant) to know what you're doing. Reviewers describe A2X's tax mapping as more manual. Guided correctness versus configurable depth.
What the complaints actually say
Both products rate very highly, so the negative reviews are worth more than the averages. The A2X complaints cluster on setup: onboarding that took weeks and chart-of-account mapping that assumed accounting knowledge the buyer didn't have. The Link My Books complaints cluster on the relationship: a cancellation flow that routes through support rather than a button, and year-over-year price increases — a gripe that predates, and predicted, the 2026 one. Neither cluster says the core product fails at reconciliation. That matches our read: this category's incumbents are reliable at the job and priced like they know it.
The decision, compressed
| Your situation | Pick |
|---|---|
| Multi-channel at small-to-mid volume, cost-sensitive | Link My Books |
| TikTok Shop is a real channel | Link My Books |
| UK/EU seller who wants VAT handled by the setup wizard | Link My Books |
| NetSuite or Sage now or soon | A2X |
| Accountant-led process, line-level drill-down (Clarity) | A2X |
| Single Amazon store, either works | Cheaper quote wins |
What neither of them does
Both tools take the settlement as given and book it. Neither leads with the question that precedes bookkeeping: is the settlement itself right? A fee that jumped without a product change, a payout short against its own orders, a reserve that never released — booking those correctly just means your books now faithfully record the leak. Sumhound's free settlement analyzers (Amazon, Shopify, TikTok Shop) rebuild a payout to the cent and flag what looks wrong — free, no signup, files never stored. Run one before you commit to either subscription; it's the cheapest due diligence you'll do this year.