IRIS Business Tax vs Zamp
| IRIS Business Tax | Zamp | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | self-hosted, Windows | api |
| Free plan | — | No |
| Jurisdictions covered | — | 13,000 jurisdictions |
| Supported tax types | — | Sales tax; GST; HST; PST; QST |
| Return filing | — | Yes |
| Filing support level | — | automated |
| Sales tax calculation | — | Yes |
| Tax registration | — | Yes |
| API access | — | Yes |
Both are listed in Best Tax Compliance Software. On Everything Xiaomi, Zamp scores higher on our published basis.