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

Finance AI Recommendation Index, October 2026 Edition. Named in 6 judge labels across 1 categories by 6 of 14 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 | 9% | 4 | 0% | 6 |

## What the models said for it

- "### 1. Thomson Reuters Onesource Income Tax - Best for: Mid-to-large organizations needing comprehensive federal, state, and international tax compliance" (MiniMax M2.5, Corporate tax provision)
- "I'd put Thomson Reuters ONESOURCE Income Tax on the shortlist first for a mid-sized company with an in-house tax team" (GPT-6 Luna, Corporate tax provision)
- "I would recommend Thomson Reuters ONESOURCE Income Tax if your priority is corporate income tax compliance" (Perplexity Sonar, Corporate tax provision)
- "my default recommendation would be Thomson Reuters ONESOURCE Income Tax" (GPT-5.4 mini, Corporate tax provision)

## Movement since September 2026

Floor: 10 points of share, measured on the calibration repeat. A larger change is movement; a smaller one is noise.

- Corporate tax provision: 5% to 9%, +4. Inside the floor by 6 points · rank 7 → 4 of 102.

## In its own words

What Thomson Reuters ONESOURCE Income Tax's own pages state, read 2026-10-05. Stated by the vendor, not checked by the index.

- Positioning: Corporate income tax software (https://tax.thomsonreuters.com/en/products/onesource-income-tax)
- For: tax professionals (https://tax.thomsonreuters.com/en/products/onesource-income-tax)

## 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, October 2026 Edition, finance-ai-index.com.