ONESOURCE Certificate Manager vs Taxmo

ONESOURCE Certificate Manager automates the collection, validation, storage and renewal of sales tax exemption certificates. It checks certificates against state-specific rules and tracks expiration dates. Customers can submit certificates through a self-service portal; tax teams can use reminders, customizable email templates and audit-ready reports to produce documentation on demand. Integration with ONESOURCE Determination links exemption documentation to tax calculation. Described use cases include manufacturing and distribution, government, education, nonprofits, retail and sellers operating across multiple jurisdictions. Deployment uses an application server or web container, with downloads from the ONESOURCE Customer Center. The installation guide requires Determination 5.6.2.4 or higher. Customers planning bulk uploads of customer and certificate data should also download Data File Integrator. In-application Help is available after installation and configuration, and documentation is available through the Knowledge Base. The listed platforms are API, self-hosted, web and Windows. Pricing is on request, and there is no free plan; a free demo can be requested.

Taxmo is UK bookkeeping and tax software for sole traders, freelancers, contractors, expats and small businesses. It tracks income and expenses and updates estimates for Income Tax, National Insurance and VAT as entries are added. Paid plans can submit VAT returns to HMRC through the Making Tax Digital API. Taxmo prepares and reviews Self Assessment returns but does not submit them to HMRC; MTD for Income Tax submission is marked as coming soon. Receipt capture extracts supplier, amount, date and VAT from photos and PDFs. Bank imports use read-only, on-demand Open Banking authorization, while CSV statement uploads have no history limit. The accountant platform syncs in both directions with Xero, QuickBooks and FreeAgent, and deadlines can be exported as an iCal feed. Taxmo offers web, iOS and Android apps plus API access; Pro subscribers get a read-only REST API limited to 300 requests per 15-minute window. There is a free plan and a free trial; paid plans start at £9.99/mo, excluding VAT.