Best Sales Tax Software in 2026
Updated
In short: Yonda Tax is ranked #1 of 25 as of 4 October 2026, ahead of Zamp and Kintsugi. The best-ranked option with a free plan is Zamp. The lowest first paid tier on this page is Taxolio at $35/mo.
Sales tax software can address tasks such as tracking tax obligations, registering, filing returns and handling exemption certificates. Compared on exemption certificates, free plan, jurisdictions covered, marketplace support, nexus monitoring, paid from, tax registration and tax return filing, the entries can be weighed against your business’s requirements. Check which jurisdictions and processes are listed, and whether marketplace support or certificate handling is relevant to your sales model. Free-plan availability and starting prices offer additional cost context. The ranking starts with Taxolio, Yonda Tax and Zamp, followed by Numeral and Kintsugi. Use the listed coverage and capabilities to make comparisons.
25 sales tax software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
3 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | Yonda TaxWeb · API | Two bars | — | 1 of 6 | Free | 6.4 | |
| 2 | ZampAPI | Two bars | — | 0 of 6 | Free | 6.4 | |
| 3 | KintsugiAPI | Two bars | — | 0 of 6 | $75/mo | 6.2 | |
| 4 | CCH SureTaxNo platforms listed | One bar | — | — | 0 of 6 | — | 5.4 |
| 5 | Sovos Tax DeterminationWeb · API | One bar | — | — | 1 of 6 | — | 5.4 |
| 6 | TaxolioWeb | One bar | — | — | 1 of 6 | $35/mo | 5.4 |
| 7 | NumeralAPI | One bar | — | — | 0 of 6 | — | 5.3 |
| 8 | ShipVATWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 9 | TaxuallyAPI | One bar | — | — | 0 of 6 | — | 5.2 |
| 10 | Vertex e-InvoicingAPI | One bar | — | — | 0 of 6 | — | 5.2 |
| 11 | AkuCalcNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 12 | CereTaxWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 13 | ComplytWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 14 | ONESOURCE Certificate ManagerWeb · Windows · Self-hosted · API | One bar | — | — | 2 of 6 | — | 5.1 |
| 15 | Sovos Sales & Use TaxWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 16 | AccurateTaxWeb · API | One bar | — | — | 1 of 6 | — | 5.0 |
| 17 | Avalara VAT RegistrationWeb · API | One bar | — | — | 1 of 6 | — | 5.0 |
| 18 | ONESOURCE Sales & Use Tax ComplianceWeb | No signal | — | — | 1 of 6 | — | 5.0 |
| 19 | AnrokAPI | One bar | — | — | 0 of 6 | $50/mo | 4.9 |
| 20 | QuadernoAPI | One bar | — | — | 0 of 6 | — | 4.9 |
| 21 | TaxCloudAPI | One bar | — | — | 0 of 6 | — | 4.9 |
| 22 | DAVO Sales TaxWeb | No signal | — | — | 1 of 6 | — | 4.8 |
| 23 | Prophit.ai Sales Tax EngineWeb | No signal | — | — | 1 of 6 | — | 4.8 |
| 24 | SphereAPI | One bar | — | — | 0 of 6 | $100/mo | 4.8 |
| 25 | TaxJarAPI | One bar | — | — | 0 of 6 | $39/mo | 4.8 |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which sales tax software is ranked first on Freedom251?
Yonda Tax is ranked #1 of 25 with a score of 6.4. Zamp is second and Kintsugi third.
How many of these have a free plan?
3 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Taxolio has the lowest first paid tier we found: $35/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.