Head-to-head · Tax Compliance Software
ONESOURCE Determination vs Sovos Tax Determination
ONESOURCE Determination leads on 0 checks, Sovos Tax Determination on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreONESOURCE Determination · 9.4/10
- Most featuresSovos Tax Determination · 1 of 4
ONESOURCE Determination scores higher on our rubric for tax compliance software: 9.4 against 8.5 out of 10; our editors rank them #1 and #9.
ONESOURCE Determination is the better fit for large global enterprises. Sovos Tax Determination is the better fit for API-first enterprise tax determination.
- ONESOURCE Determination fits best
Large global enterprises
- Sovos Tax Determination fits best
API-first enterprise tax determination
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Side by side
| Feature | ONESOURCE Determination 9.4/10 Visit ↗ | Sovos Tax Determination 8.5/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.4 | 8.5 |
| Ranking | #1 in Tax Compliance Software | #9 in Tax Compliance Software |
| Best for | Large global enterprises | API-first enterprise tax determination |
| Pricing model | Paid | Paid |
| Starting price | Pricing on request | Pricing on request |
| Free plan | Not checked yet | Not checked yet |
| Free trial | — | — |
| Deployment | Cloud | Cloud |
| Integrations | 10 integrations | 6 integrations |
| Built for | Mid-market, Enterprise | Mid-market, Enterprise |
| Features ONESOURCE Determination 0/4 · Sovos Tax Determination 1/4 | ||
| Return filing | Not checked yet | Not checked yet |
| Sales tax calculation | Not checked yet | Not checked yet |
| Tax registration | Not checked yet | Not checked yet |
| API access | Not checked yet | ✓ (best) |
| Specs | ||
| Jurisdictions covered | Not checked yet | Not checked yet |
| Supported tax types | Not checked yet | Not checked yet |
| Filing support level | Not checked yet | Not checked yet |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | ONESOURCE Determination is a cloud-based indirect tax engine from Thomson Reuters for companies managing sales, use, GST, VAT, and excise tax calculations. It is aimed at mid-market and enterprise organizations, with particular relevance… Read the review → |
Sovos Tax Determination is a cloud tax engine for businesses managing indirect tax across sales, purchases, and other transactions. It supports VAT, GST, excise, and sales and use tax, making it suited to mid-market and enterprise… Read the review → |
Strengths and trade-offs
ONESOURCE Determination — where it wins
- Covers more than 205 countries and 60,000 tax jurisdictions
- Calculates multiple tax types in real time
- Supports up to 10 million transactions per hour
Where it doesn't
- Pricing requires contact with a representative
- No public plan-level transaction limits are provided
- Designed for cloud deployment rather than on-premises use
Sovos Tax Determination — where it wins
- Calculates VAT, GST, excise, and sales and use tax in real time
- Connects with SAP, Oracle, Coupa, and NetSuite environments
- Handles exemptions, reporting, custom rules, codes, and attributes
Where it doesn't
- Pricing requires contact with sales
- Primarily focuses on tax determination
- API deployment may not suit teams seeking a standalone tax application
- ONESOURCE Determination9.4/10 · Pricing on request
A global indirect tax engine for complex, high-volume calculation needs.
Visit ONESOURCEFull verdict → - Sovos Tax Determination8.5/10 · Pricing on request
API-first tax determination for complex, multi-jurisdiction transactions.
Visit SovosFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
Last updated · How we research and update





