🇬🇧Accounting Coverage

United Kingdom accounting integrations

The UK has a mature SaaS ecosystem. Xero and Sage lead cloud accounting for SMBs, with QuickBooks and FreeAgent strong among freelancers and micro-businesses, while Sage 50 retains a large desktop installed base. Salesforce and HubSpot lead CRM.

12 supported accounting platforms + 18 on the radar

United Kingdom accounting software market

Where the major platforms sit and which Apideck supports today. Figures are company-reported unless marked as an estimate.

5.68M

UK SMEs (private-sector businesses)

ONS / DBEIS, 2025

~49%

of small businesses use accounting software

Xero UK Industry Report, 2025
PlatformUnited Kingdom market positionApideckSource
Xero~1.1M UK subscribersSupportedXero FY24 results
QuickBooks Online~270k UK users (est.)SupportedAceCloud, 2026 (est.)
Sage Business Cloud AccountingWithin ~6.1M global customersSupportedSage FY24 results
FreeAgent200k+ UK customersSupportedFreeAgent / NatWest
KashFlow, ClearBooks UK, FreshBooks, Zoho BooksLong-tail SME / freelanceSupported—
NetSuite, Dynamics 365 BC, Sage IntacctMid-market / ERPSupported—
Sage 50 / Sage 200Large desktop / hybrid installed baseOn the radar—

Subscriber and customer counts are the best available public indicators and may include accountant-managed multi-entity accounts; they are not a direct count of distinct businesses. Estimates are marked accordingly.

Supported accounting platforms

Connect to these United Kingdom accounting systems through one unified API

Expand to United Kingdom with confidence

Integrate with 12+ United Kingdom accounting platforms through a single API. Free trial, no credit card required.