Best ONESOURCE Determination Alternatives in 2026
Updated
20 apps from tax compliance software ranked against ONESOURCE Determination on the same published basis.
- 1ONESOURCE Determination vs LOVAT
- 2ONESOURCE Determination vs Zamp
- 3ONESOURCE Determination vs Kintsugi
- 4ONESOURCE Determination vs Tax1099
- 6ONESOURCE Determination vs CCH SureTax
- 7ONESOURCE Determination vs Sovos Tax Determination
- 8ONESOURCE Determination vs UFile
- 9ONESOURCE Determination vs ONESOURCE Indirect Compliance
- 10ONESOURCE Determination vs Taxmo
- 11ONESOURCE Determination vs Taxumo
- 12ONESOURCE Determination vs Avalara AvaTax
- 13ONESOURCE Determination vs Vertex Cloud Indirect Tax
- 14ONESOURCE Determination vs Fortax
- 15ONESOURCE Determination vs Sovos VAT Compliance
- 16ONESOURCE Determination vs Vertex VAT Compliance
- 17ONESOURCE Determination vs Taxually
- 18ONESOURCE Determination vs Numeral
- 19ONESOURCE Determination vs Tax Series
- 20ONESOURCE Determination vs Alphatax
- 21ONESOURCE Determination vs Stripe Tax
ONESOURCE Determination alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | LOVAT | 7.9 | Free plan | €27/mo | Android, API, iOS, Web |
| 2 | Zamp | 7.7 | Free plan | Free | API |
| 3 | Kintsugi | 7.4 | Free plan | $75/mo | API |
| 4 | Tax1099 | 7.1 | Free plan | $20.75/mo | API, Web |
| 6 | CCH SureTax | 6.9 | No | — | — |
| 7 | Sovos Tax Determination | 6.8 | No | — | API, Web |
| 8 | UFile | 6.8 | Free plan | Free | — |
| 9 | ONESOURCE Indirect Compliance | 6.7 | No | — | API |
| 10 | Taxmo | 6.7 | Free plan | £9.99/mo | Android, API, iOS, Web |
| 11 | Taxumo | 6.7 | Free plan | Free | API |
| 12 | Avalara AvaTax | 6.6 | No | $58.25/mo | API, Web |
| 13 | Vertex Cloud Indirect Tax | 6.6 | No | — | API |
| 14 | Fortax | 6.6 | Free plan | ₹999/mo | API |
| 15 | Sovos VAT Compliance | 6.5 | No | — | API |
| 16 | Vertex VAT Compliance | 6.5 | No | — | API |
| 17 | Taxually | 6.5 | No | — | API |
| 18 | Numeral | 6.5 | No | — | API |
| 19 | Tax Series | 6.5 | No | — | API, Web |
| 20 | Alphatax | 6.5 | No | — | API, Web, Windows |
| 21 | Stripe Tax | 6.4 | No | — | API |
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Questions about ONESOURCE Determination alternatives
What is the best alternative to ONESOURCE Determination?
LOVAT, number 1 in tax compliance software with a score of 7.9 out of 10. The others here: Zamp, Kintsugi, Tax1099 and 16 more.
What is the best free alternative to ONESOURCE Determination?
LOVAT is the best-ranked alternative with a free plan. 8 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.