Numeral vs Symmetry Tax Engine

Numeral provides sales tax, VAT, and GST services through an API. Listed capabilities include sales-tax calculation, tax registration, and automated return filing. Its free Monitoring plan has no listed price and includes a nexus study, physical and economic nexus monitoring, threshold alerts, and exposure and historical-liability audits. Professional costs $75 a month; standard accounts run month-to-month and are billed as filings occur. That plan covers registrations, filings, remittance, autofile and autoregister, virtual-mailbox monitoring for tax mail, AI product classification, and exemption-certificate management. Professional registration costs $150 a month as a one-time registration fee per state and covers state registrations and support. Enterprise has no listed price and adds global coverage, a tax engine, API access, tax-lawyer consultations, and advanced reporting and analytics. Numeral was founded in 2022. The listed platform is API, so the available interface is intended for software integration rather than a separately described web application.

Symmetry Tax Engine calculates gross-to-net payroll taxes for software platforms, payroll providers, employers, and payment companies. It covers federal, state, local, and employer taxes across all 50 U.S. states, U.S. territories including Puerto Rico, and Canada, with calculations for more than 7,000 jurisdictions. Listed tax types include federal withholding, FICA, paid family and medical leave, unemployment and disability taxes, benefits and pre-tax benefit rules, and local taxes such as city, county, school district, and municipality taxes. Deployment is available as a hosted Web API or an on-premise SDK installed in a customer’s environment. The API supports JSON and XML; the SDK supports Windows, Linux, and macOS, with interfaces including C/C++, Java, .NET, .NET Core, and Delphi. The paid product has no free plan, offers a trial by contacting Symmetry, and has pricing on request. Symmetry is headquartered in Scottsdale, Arizona, and was founded in 1984.