Symmetry Tax Engine vs Zamp
Symmetry Tax Engine
symmetry.com
Zamp
zamp.comSide by side
| Figure | Symmetry Tax Engine | Zamp |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 4 |
| Spec score · Tax Compliance Software | 8.2 (#16) | 8.6 (#8) |
| API access | Yes | Production API access is included in the plan comparison, with a free API sandbox available. |
| Free plan | No | No |
| Headquarters | Scottsdale, Arizona, United States | Miami, Florida, United States |
| Jurisdictions covered | 7000 | 13000 |
| Supported tax types | Federal withholding; FICA; paid family and medical leave; SDI/VDI/employee SUI; courtesy withholding; FUTA; SUTA; benefits and pre-tax benefit rules; city; county; school district; municipality; earned income; privilege; local services; JEDDs/JEDZ | Sales tax; GST; HST; PST; QST |
Plans
Zamp
- FreeFree
- U.S.Priced on request
- U.S. + CanadaPriced on request
- Assess and diagnosePrice not published
In their own words
Symmetry Tax Engine
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.