Mid-market▲+4Since September 2026: 5% → 9%, +4 points. Inside the 10-point floor: within noise. Read over the models both editions asked.
9%from 5% in September 2026
Inside the floor by 6 pointsRank 7 → 4 of 94
Thomson Reuters · 1 category · RankedThomson Reuters ONESOURCE Income Tax
12Judge labels
10First choices
0Negative labels
8 / 14Models named it
1Category
October 2026 Edition. Every number here is derived from the raw labels under vendor table v2026-10.7, every buyer segment counted.
Best standing
9% in Corporate tax provision for mid-market buyers
Rank 4 of 102 in the mid-market standing
0 of 14 models made it the first choice on the direct prompt; 0% of its 6 labels there were negative.
By buyer segmentRead the same way at every buyer size.
Small business56 of 108
0%1 label
under the label threshold
Mid-market4 of 102
9%6 labels
under the label threshold
Enterprise3 of 95
10%5 labels
under the label threshold
In corporate tax provision · each standing computed within its segment · bars are 0 to 100 · the accent bar is the product's own best reading
Standing by category
Every category where a model named Thomson Reuters ONESOURCE Income Tax for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.
| Category | Function | Share | Rank | Negative rate | Labels | Quadrant | Since September 2026 |
|---|---|---|---|---|---|---|---|
| Corporate tax provision | Tax and compliance | 9% | 4 of 102 | 0% | 6 | under 10 labels · led by Thomson Reuters ONESOURCE Tax Provision at 21% | ▲+4Since September 2026: 5% → 9%, +4 points. Inside the 10-point floor: within noise. Read over the models both editions asked. |
Movement
Since September 2026, Thomson Reuters ONESOURCE Income Tax held within the floor in its one category: no change cleared 10 points.
Best category · Corporate tax provision · by segment
Enterprise▲+7Since September 2026: 2% → 9%, +7 points. Inside the 10-point floor: within noise. Read over the models both editions asked.
9%from 2% in September 2026
Inside the floor by 3 pointsRank 12 → 3 of 88
All categories · Mid-market
| Category | September 2026 | Now | Change | Reading | Rank |
|---|---|---|---|---|---|
| Corporate tax provision | 5% | 9% | ▲+4Since September 2026: 5% → 9%, +4 points. Inside the 10-point floor: within noise. Read over the models both editions asked. | Within noise | Rank 7 → 4 of 102 |
Shares here are read over the models both editions asked, so they can differ by a point or two from the standing above, which counts every model in this edition.
The floor is 10 points of share, measured: how far the models move a leader on their own when the same questions are asked twice with nothing changed. A larger change is movement; a smaller one is noise, and both are shown. Movement is read over the twelve models both editions asked; GPT-6 Luna, Muse Glimmer 30B joined this edition and are in the standing but not yet in the comparison. How the floor is measured · The editions
By model
How each model treated Thomson Reuters ONESOURCE Income Tax across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.ShowHide
By model
How each model treated Thomson Reuters ONESOURCE Income Tax across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.
ShowHide| Model | First choice | Alternative | Mention | Negative | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-5.4 mini | 1 | 0 | 0 | 0 | 1 |
| Gemini 3.5 Flash | 0 | 0 | 0 | 0 | 0 |
| Perplexity Sonar | 1 | 0 | 0 | 0 | 1 |
| Grok 4.1 Fast | 0 | 0 | 0 | 0 | 0 |
| Mistral Small | 0 | 1 | 0 | 0 | 1 |
| DeepSeek V4 Flash | 1 | 0 | 0 | 0 | 1 |
| Llama 4 Maverick | 0 | 0 | 0 | 0 | 0 |
| Qwen 3.7 Flash | 0 | 0 | 0 | 0 | 0 |
| Kimi K2 | 0 | 0 | 0 | 0 | 0 |
| GLM 4.7 FlashX | 0 | 0 | 0 | 0 | 0 |
| MiniMax M2.5 | 1 | 0 | 0 | 0 | 1 |
| GPT-6 Luna | 1 | 0 | 0 | 0 | 1 |
| Muse Glimmer 30B | 0 | 0 | 0 | 0 | 0 |
By framing
Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.
FramingLabels by classFirst choices
Direct0 labelsNone
Paraphrase12 labels10
Comparative0 labelsNone
Budget-constrained0 labelsNone
Scale-constrained0 labelsNone
Negative0 labelsNone
First choiceAlternativeMentionNegative12 labels in all, every segment counted; 10 of the 10 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.
What the models said for it
Verbatim evidence the judge attached to positive labels.
“### 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 · paraphrase prompt · first choice
“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 · paraphrase prompt · first choice
“I would recommend Thomson Reuters ONESOURCE Income Tax if your priority is corporate income tax compliance” Perplexity Sonar · Corporate tax provision · paraphrase prompt · first choice
“my default recommendation would be Thomson Reuters ONESOURCE Income Tax” GPT-5.4 mini · Corporate tax provision · paraphrase prompt · first choice
And against it
Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.
No model argued against it.
Named alongside
The products named in the same answers as Thomson Reuters ONESOURCE Income Tax, over the 12 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Thomson Reuters ONESOURCE Income Tax was named but was not.ShowHide
Named alongside
The products named in the same answers as Thomson Reuters ONESOURCE Income Tax, over the 12 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Thomson Reuters ONESOURCE Income Tax was named but was not.
ShowHideProductSame answerTook the first choice insteadHead to head
A head-to-head page exists where both products are among a category's top eight. The other rows are the same fact without a page behind them, so they link to the product instead.
What carried it into the answer
The sites and pages cited by the answers that named Thomson Reuters ONESOURCE Income Tax. A fact about retrieval, not a lever on the model.
Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 12 of the 12 answers that named Thomson Reuters ONESOURCE Income Tax and are not a share of its labels.
Domains cited
tax.thomsonreuters.comYour site12
guideflow.com9
fueler.io6
us.fitgap.com6
avalara.com5
gitnux.org5
trustradius.com4
wolterskluwer.com4
articsledge.com3
gartner.com3
Forty-five of the fifty-seven domain citations in answers naming Thomson Reuters ONESOURCE Income Tax came from somebody else's page.
Pages cited
Pages are listed as the models cited them.
Search and answers
thomsonreuters.com ranks 2 on Google for the category's searches. In the answers, Thomson Reuters ONESOURCE Income Tax takes 9% of first choices and Thomson Reuters ONESOURCE Tax Provision takes 21%.ShowHide
Search and answers
thomsonreuters.com ranks 2 on Google for the category's searches. In the answers, Thomson Reuters ONESOURCE Income Tax takes 9% of first choices and Thomson Reuters ONESOURCE Tax Provision takes 21%.
ShowHideIn search
Google, US estimatesPosition for “tax provision tools”
3
Position for “corporate tax provision software”
2
- Searches for its name, Google
- 10 a month (“thomson reuters onesource income tax”)
- AI search demand for its name, est.
- 0 a month
- Its company's site
- thomsonreuters.com shared with Thomson Reuters's other products; the figures are the site's
- Organic visits to its site
- about 3,055,379 a month
- Searches its site ranks for
- 250,459 · 24,416 in the top three
- Sites linking to it
- 97,191
- Paid Google search
- 10 searches its ads show for, about 41 clicks and $313 a month (estimate)
In answers
This editionShare of first choices
9%
rank 4 of 102 in corporate tax provision
Segment leader
21%
Thomson Reuters ONESOURCE Tax Provision
- First choices
- 10 across its categories
- Named in
- 12 answers
- Its own site cited
- in 12 of the answers that named it
Search figures are US estimates from DataForSEO, read September 28, 2026; AI search demand is its modeled, directional estimate, not a count of queries to any assistant. The answers are this edition's. Two measurements side by side: neither is read as the cause of the other.
Names read as Thomson Reuters ONESOURCE Income Tax
What the judge wrote, as written, with how often. The vendor table decides that these count as Thomson Reuters ONESOURCE Income Tax; a claim can dispute any of them.
Thomson Reuters Onesource Income Tax 2
Follow Thomson Reuters ONESOURCE Income Tax
An email the morning each edition publishes: where this product moved, where it held, and by how much against the noise floor. One address, confirmed by a click; a stop link in every email.
Already following? Everything you follow, with a stop for each.
The company
Thomson Reuters is the company behind Thomson Reuters ONESOURCE Income Tax.ShowHide
The company
Thomson Reuters is the company behind Thomson Reuters ONESOURCE Income Tax.
ShowHideOn record
Company recordsIn its own words
Stated by the vendor, not checked- Positioning
- Corporate income tax software
- For
- tax professionals
- Not stated on the pages read
- Price, starting price, free plan or trial, integrations, certifications, hosting, customers
What Thomson Reuters ONESOURCE Income Tax's own pages state, read October 5, 2026: tax.thomsonreuters.com/en/products/onesource-income-tax, thomsonreuters.com/en/reports/total-economic-impact-of-thomson-reuters-onesource, thomsonreuters.com/en/institute/topics/corporate-tax-technology-report, thomsonreuters.com/en/institute/reports/corporate-tax-department-technology-report-2026. A claimed page can correct any of them.
Is this your product?
Claim this page
Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Thomson Reuters ONESOURCE Income Tax's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Thomson Reuters ONESOURCE Income Tax, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.
What a new claim receivesHide what a new claim receives
A new claim receives the current edition's vendor brief for Thomson Reuters ONESOURCE Income Tax by email, built from the raw record of the edition. It shows:
- where Thomson Reuters ONESOURCE Income Tax is named, by buyer and by framing, and which cells hold its first choices;
- the claims the models make when they name it, ranked, with the strongest and the weakest quoted;
- its vocabulary against the segment leader's, and the pages the models cited;
- who was chosen in the answers that did not name Thomson Reuters ONESOURCE Income Tax, and every reason the record gives;
- a battlecard for each top rival: the head-to-head split, why they win, and the reservation quoted against them;
- one page of published figures cleared to show a buyer.