# Thomson Reuters ONESOURCE Income Tax: how AI models rank it, September 2026

Finance AI Recommendation Index, September 2026 Edition. Named in 2 judge labels across 1 categories by 2 of 12 models. Page: https://finance-ai-index.com/vendors/thomson-reuters-onesource-income-tax/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| Corporate tax provision | 5% | 8 | 0% | 2 |

## What the models said for it

- "I'd generally recommend starting with Thomson Reuters ONESOURCE Income Tax" (GPT-5.4 mini, Corporate tax provision)
- "Thomson Reuters ONESOURCE Income Tax is the strongest overall choice" (DeepSeek V4 Flash, Corporate tax provision)

## Record

- Method: https://finance-ai-index.com/methodology/
- Raw judge labels and full responses: https://finance-ai-index.com/data/
- License: CC BY 4.0. Cite as Finance AI Recommendation Index, September 2026 Edition, finance-ai-index.com.