Our sources and coverage.
We use provider pricing, feature and support pages. The directory covers a curated set of marketplace and seller-service providers and focuses its calculator on Link My Books or A2X with Xero or QuickBooks Online. It optionally adds the Amazon version of sellerboard. Accounting and profit sources were checked on 10 October 2026; Additional marketplace, supplier, shipping, marketing, image, support and website research was checked on 11 October 2026. These services are excluded from the accounting calculator. A listing marked “Check live plans” does not have a verified numeric price here. Marketplace access badges describe the documented route, not guaranteed approval. Product-direction shortlists are editorial starting points. Directory information is not fetched live; the daily news briefing covers six named channels separately.
What the calculator does.
It selects a verified tier that meets your entered order volume, connection count and minimum history. It adds the regular accounting price, the connector and an optional Amazon profit subscription. USD amounts are converted using the rate you enter, defaulting to an illustrative £0.75 per US$1.
For one connection, A2X uses the Amazon or eBay plan table. Multiple connections use a bundled Multi plan. Separate small subscriptions might be cheaper, so our result does not claim to optimise every arrangement. For A2X's maximum-history tiers, actual historical availability still needs confirmation.
The Link My Books matcher covers up to 25,000 orders and ten connections. The calculator uses your typical volume as a proxy; Link My Books determines actual usage using its own measurement rules. Ask the provider if your history, channels or account structure are unusual.
Billing and exclusions.
We use regular monthly pricing rather than temporary promotions. The sellerboard annual option is the upfront USD yearly price divided by twelve; it is labelled as a monthly equivalent. The annualised bundle is twelve times the unrounded monthly estimate. Displayed amounts are rounded to pennies.
Estimates exclude applicable tax, card FX fees, payroll, accountant fees, onboarding, other add-ons and future changes. QuickBooks UK prices could not be verified from its dynamically loaded page, so you enter your actual amount. FreeAgent connector compatibility was not verified and no bundle is calculated.
Ordering and independence.
Valid calculator bundles are ordered by estimated cost. Affiliate status has no role in that calculation. Directory cards are a curated list, not a score or a declaration of a universal winner. We show research-based profiles, not hands-on reviews.
Check before committing.
Confirm the live plan price, tax, account definitions, feature requirements and cancellation terms on the provider site. Test a representative payout and review it with your accountant.