Corporate tax provision for enterprise buyers
Asked as “corporate tax provision software”, and as “income tax compliance software”, on behalf of an enterprise B2B company. 52 first choices recorded across the direct, paraphrase, budget and scale prompts, fourteen models each.
Standing · first-choice share
77%
Clear leader
77Thomson Reuters ONESOURCE Tax Provision08CSC Corptax Accounting for Income Taxes04Vertex12others
77% of first choices, clear leader.
Since October 2026▲+31Since October 2026: 46% → 77%, +31 points. Past the 10-point floor: movement.Thomson Reuters ONESOURCE Tax Provision held the lead, +31 points on 46%, past the floor.
By buyer segment
The same question asked on behalf of a different buyer. Each standing is computed within its segment; they sit side by side and are never added together.
Small business
TaxAct Business29%Contested▲+1Since October 2026: 28% → 29%, +1 point. Inside the 10-point floor: within noise.Standing →Mid-market
Bloomberg Tax Provision19%Contested↗new leaderNew leader since October 2026: Bloomberg Tax Provision (19%) replaces Thomson Reuters ONESOURCE Tax Provision (21% then, 17% now), 2 points clear, inside the 10-point floor.Standing →Enterprise
Thomson Reuters ONESOURCE Tax Provision77%Clear leader▲+31Since October 2026: 46% → 77%, +31 points. Past the 10-point floor: movement.This page
TaxAct Business29%Contested▲+1Since October 2026: 28% → 29%, +1 point. Inside the 10-point floor: within noise.Standing →Mid-marketBloomberg Tax Provision19%Contested↗new leaderNew leader since October 2026: Bloomberg Tax Provision (19%) replaces Thomson Reuters ONESOURCE Tax Provision (21% then, 17% now), 2 points clear, inside the 10-point floor.Standing →EnterpriseThomson Reuters ONESOURCE Tax Provision77%Clear leader▲+31Since October 2026: 46% → 77%, +31 points. Past the 10-point floor: movement.This pageThe standing
Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all fourteen models, for an enterprise B2B company. Ordered by share.
ProductFirst-choice shareNegative rateLabelsQuadrantSince October 2026
01Thomson Reuters ONESOURCE Tax Provision77%7%68endorsed leader▲+31Since October 2026: 46% → 77%, +31 points. Past the 10-point floor: movement.46% → 77%
Thomson Reuters ONESOURCE Tax Provision77%7%68endorsed leader▲+31Since October 2026: 46% → 77%, +31 points. Past the 10-point floor: movement.46% → 77%02CSC Corptax Accounting for Income Taxes8%6%50accepted challenger▼−4Since October 2026: 12% → 8%, −4 points. Inside the 10-point floor: within noise.12% → 8%
03
Vertex4%27%15criticized challenger▲+2Since October 2026: 2% → 4%, +2 points. Inside the 10-point floor: within noise.2% → 4%
Vertex4%27%15criticized challenger▲+2Since October 2026: 2% → 4%, +2 points. Inside the 10-point floor: within noise.2% → 4%04
Longview Tax2%8%38accepted challenger=heldSince October 2026: 2% → 2%, ±0 points. Inside the 10-point floor: within noise.2% → 2%
Longview Tax2%8%38accepted challenger=heldSince October 2026: 2% → 2%, ±0 points. Inside the 10-point floor: within noise.2% → 2%05
OneStream Tax Provision2%0%15accepted challenger▲+2Since October 2026: 0% → 2%, +2 points. Inside the 10-point floor: within noise.0% → 2%
OneStream Tax Provision2%0%15accepted challenger▲+2Since October 2026: 0% → 2%, +2 points. Inside the 10-point floor: within noise.0% → 2%Show the five products at 0%, ordered by negative rate
10
Avalara0%25%12criticized challenger▼−2Since October 2026: 2% → 0%, −2 points. Inside the 10-point floor: within noise.2% → 0%
Avalara0%25%12criticized challenger▼−2Since October 2026: 2% → 0%, −2 points. Inside the 10-point floor: within noise.2% → 0%07
Oracle Tax Reporting0%17%18accepted challenger=heldSince October 2026: 0% → 0%, ±0 points. Inside the 10-point floor: within noise.0% → 0%
Oracle Tax Reporting0%17%18accepted challenger=heldSince October 2026: 0% → 0%, ±0 points. Inside the 10-point floor: within noise.0% → 0%09
Sovos Tax Provision0%14%14accepted challenger▼−2Since October 2026: 2% → 0%, −2 points. Inside the 10-point floor: within noise.2% → 0%
Sovos Tax Provision0%14%14accepted challenger▼−2Since October 2026: 2% → 0%, −2 points. Inside the 10-point floor: within noise.2% → 0%06Bloomberg Tax Provision0%14%29accepted challenger▼−4Since October 2026: 4% → 0%, −4 points. Inside the 10-point floor: within noise.4% → 0%
Bloomberg Tax Provision0%14%29accepted challenger▼−4Since October 2026: 4% → 0%, −4 points. Inside the 10-point floor: within noise.4% → 0%08
Vertex Tax Accounting0%0%10accepted challenger=heldSince October 2026: 0% → 0%, ±0 points. Inside the 10-point floor: within noise.0% → 0%
Vertex Tax Accounting0%0%10accepted challenger=heldSince October 2026: 0% → 0%, ±0 points. Inside the 10-point floor: within noise.0% → 0%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 can't be told apart from repeat variation, and both are shown. Each index measures its own floor from its own repeat, over its own categories, so the floor differs from one index to the next. Both editions asked the same fourteen models. How the floor is measured
Bars are the share of first choices, 0 to 100Every product with at least 10 labels here. Every product name links to its product page.
For buyers
Head to head
Bloomberg Tax Provision vs Thomson Reuters ONESOURCE Tax ProvisionBloomberg Tax Provision vs Longview TaxBloomberg Tax Provision vs Avalara
Head-to-head pages are published for mid-market buyers, so these open on mid-market figures, not enterprise.All twenty-one head-to-head pages: the top seven products, each against each
Bloomberg Tax Provision vs OneStream Tax ProvisionBloomberg Tax Provision vs Sovos Tax ProvisionBloomberg Tax Provision vs CSC Corptax Accounting for Income TaxesThomson Reuters ONESOURCE Tax Provision vs Longview TaxThomson Reuters ONESOURCE Tax Provision vs AvalaraThomson Reuters ONESOURCE Tax Provision vs OneStream Tax ProvisionThomson Reuters ONESOURCE Tax Provision vs Sovos Tax ProvisionThomson Reuters ONESOURCE Tax Provision vs CSC Corptax Accounting for Income TaxesLongview Tax vs AvalaraLongview Tax vs OneStream Tax ProvisionLongview Tax vs Sovos Tax ProvisionLongview Tax vs CSC Corptax Accounting for Income TaxesAvalara vs OneStream Tax ProvisionAvalara vs Sovos Tax ProvisionAvalara vs CSC Corptax Accounting for Income TaxesOneStream Tax Provision vs Sovos Tax ProvisionOneStream Tax Provision vs CSC Corptax Accounting for Income TaxesSovos Tax Provision vs CSC Corptax Accounting for Income Taxes
One product takes 77% of first choices here, so the chart would put nine markers in one corner and one at the far edge. The two measurements it plots are columns in the standing above: share, and the negative label rate. Two products carry a negative rate above 25% in this category.
What they warned about
Ten of fourteen models held their first choice under the paraphrase. Mistral Small, Qwen 3.7 Flash, MiniMax M2.5 and GPT-6 Luna changed. A high negative share on a product with few labels is a warning. A low share on a product with many labels is salience, not sentiment.
Excel
100%
5 of 5 labels negative · 5 of 14 models · 4 hard negative
“While Excel is still widely used, it is error-prone, lacks audit trails, and does not scale well for large, multi-entity organizations.” Mistral Small, negative prompt
Thomson Reuters ONESOURCE Tax Provision7%
5 of 68 labels negative · 4 of 14 models · 2 hard negative
“Avoid pure standalone Tax engines with per-seat licensing: Named-user fees for 1,000+ users on specialized tax engines are rarely cost-effective.” Gemini 3.5 Flash, budget prompt
CSC Corptax Accounting for Income Taxes
6%
3 of 50 labels negative · 3 of 14 models · 1 hard negative
“avoid or be cautious about Longview, ONESOURCE, Workiva, Oracle Tax Reporting, and Corptax” Muse Glimmer 30B, negative prompt
Oracle Tax Reporting17%
3 of 18 labels negative · 3 of 14 models · 1 hard negative
“avoid or be cautious about Longview, ONESOURCE, Workiva, Oracle Tax Reporting, and Corptax” Muse Glimmer 30B, negative prompt
What they cite
Fourteen of the fourteen models returned a source list in this edition: five return the pages they cited and nine the search results they consulted.
Sites the answers cite
75 of 84 answers in this category came back with a source list, from 14 of 14 models: citations where the model returns them, or the search results it consulted. 939 links across 226 sites, every framing counted. Ranked by the number of answers carrying the site or page. 85 of the 252 answers across every segment cited this index's own page for the category; the method page measures whether that reading tilts an answer.
vendor site · Thomson Reuters53 answers · 148 citations · 14 models
publisher (Gane)38 answers · 42 citations · 10 models
vendor site · Bloomberg Tax20 answers · 36 citations · 10 models
20 answers · 30 citations · 12 models
18 answers · 27 citations · 11 models
17 answers · 25 citations · 9 models
vendor site · Sourceforge15 answers · 15 citations · 9 models
12 answers · 17 citations · 8 models
12 answers · 13 citations · 6 models
12 answers · 12 citations · 9 models
vendor site · G212 answers · 12 citations · 8 models
vendor site · insightsoftware11 answers · 13 citations · 8 models
Pages the answers cite
The ten pages named in the most answers, by full address. A page here is one the models returned with a recommendation, not one the index endorses.
35 answers · 10 models
19 answers · 9 models
15 answers · 10 models
15 answers · 9 models
13 answers · 10 models
12 answers · 9 models
12 answers · 8 models
12 answers · 9 models
12 answers · 6 models
11 answers · 9 models
Search against answers
Each company's standing in the answers beside its site's footprint in Google search, one row a site: the products the models named on it with their shares, and the share they add up to; monthly searches on Google, and DataForSEO's estimate of AI search demand (modeled from search signals, directional, not a count of queries to any assistant), for the most-searched of the company's and its products' names (the name is in each row's hover text); estimated monthly organic visits to the site; and its best position in Google's top ten for “best corporate tax provision software”, “corporate tax provision software”, “tax provision tools”. US estimates from DataForSEO and Google's Ads Transparency Center. A small company's site, or a mid-sized company's site for its flagship, is marked company; a product on a large parent's site (Google, Microsoft) has no site figures. A column with no figures for this category is left out, and an empty cell means none were seen, not none exist. Two measurements side by side: neither is read as the cause of the other.
| Company and products | Share | Own site cited | Name searches, Google | AI search demand, est. | Organic visits | Paid search a month, est. | Google ads, last 30 days | Best Google position |
|---|---|---|---|---|---|---|---|---|
| Thomson Reuters thomsonreuters.com Thomson Reuters ONESOURCE Tax Provision 77%, Thomson Reuters ONESOURCE Income Tax 0% | 77% | 149 | 20 | 0 | 3,055,379 company | $313 | 120 | 2 |
| CSC cscglobal.com CSC Corptax Accounting for Income Taxes 8%, CSC Corptax AIT 0% | 8% | 87 | 100,643 company | $72 | 49 | 5 | ||
| Vertex vertexinc.com Vertex 4%, Vertex Tax Accounting 0%, Vertex Tax Provision 0%, Vertex Corporate Tax 0% | 4% | 190 | 110,000 | 13,807 | 32,080 | $3,975 | 69 | |
| OneStream onestream.com OneStream Tax Provision 2%, OneStream 2% | 4% | 553 | 12,100 | 703 | 32,233 | $36 | 120 | 1 |
| Longview longviewsystems.com Longview Tax 2% | 2% | 115 | 50 | 59 | 1,157 company | |||
| Avii Workspace | 2% | |||||||
| Thomson Reuters – CorpTax | 2% | |||||||
| Wolters Kluwer CCH solutions | 2% | |||||||
| Bloomberg Tax bloombergtax.com Bloomberg Tax Provision 0% | 0% | 99 | 90 | 0 | 189,229 company | 37 | 1 | |
| Oracle parent site Oracle Tax Reporting 0%, Oracle EPM 0% | 0% | 36 | 450,000 | 66,611 |
Google's top ten for the three searches hold 15 sites; 6 of them are among the sites the models cited here (cbh.com, cscglobal.com, insightsoftware.com, pro.bloombergtax.com, sourceforge.net, tax.thomsonreuters.com). The first result for “best corporate tax provision software” is theaccessgroup.com.
How they answered
Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.ShowHide
How they answered
Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.
ShowHideModelDirect“What is the best corporate tax provision software for an enterprise B2B company?”Paraphrase“Which income tax compliance software would you recommend to a large B2B company with thousands of employees?”Comparative“What are the top enterprise-grade tax provision tools and how do they differ?”Budget-constrained“What is the best corporate tax provision software for a large company that needs predictable total cost across thousands of users?”Scale-constrained“We are a 5,000 person company with SSO, SOC 2 and procurement review requirements evaluating a corporate tax provision software. What should we look at?”Negative“Which tax provision tools should a large enterprise avoid or be cautious about?”
Claude Haiku 4.5Thomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax ProvisionHeldThomson Reuters ONESOURCE Tax ProvisionAvii Workspaceno first choiceagainst: Excel spreadsheets
Five alternatives
Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, OneStream Tax Provision, SAP Tax Compliance, Vertex Tax ProvisionTwo alternatives
ADP Workforce Now, CSC Corptax Accounting for Income TaxesThree alternatives
Bloomberg Tax Provision, CSC Corptax AIT, Longview TaxTwo alternatives
Bloomberg Tax Provision, Thomson Reuters ONESOURCE Tax ProvisionGPT-5.4 miniThomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax ProvisionHeldThomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax Provisionno first choicenothing named
Three alternatives
Longview Tax, Oracle Tax Reporting, Wolters KluwerFour alternatives
Avalara, Longview Tax, Vertex, Wolters Kluwer CCH / CorpTaxThree alternatives
CCH Tagetik Tax Provision & Reporting, Longview Tax, Oracle Tax ReportingOne alternative
Longview TaxGemini 3.5 FlashThomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax ProvisionHeldThomson Reuters ONESOURCE Tax ProvisionOneStreamagainst: Bloomberg Tax Provision, Thomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax Provisionagainst: Anaplan, CSC Corptax Accounting for Income Taxes, Oracle EPM Tax, Thomson Reuters ONESOURCE Tax Provision, Vertex, Wolters Kluwer CCH Integrator, Workday Adaptive Planning
Six alternatives
Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, Longview Tax, OneStream Tax Provision, Oracle Tax Reporting, Workiva Tax and ProvisionThree alternatives
CSC Corptax Accounting for Income Taxes, Longview Tax, Wolters Kluwer CCH IntegratorFive alternatives
CCH Tagetik Corporate Tax Provision, CSC Corptax Accounting for Income Taxes, Longview Tax, OneStream, Oracle EPMThree alternatives
CSC Corptax Accounting for Income Taxes, Oracle Fusion Cloud EPM, Wolters Kluwer CCH Tagetik Tax ProvisionFour alternatives
Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, Longview Tax, Wolters KluwerPerplexity SonarThomson Reuters ONESOURCE Tax Provisionagainst: VertexThomson Reuters ONESOURCE Tax ProvisionHeldagainst: VertexThomson Reuters ONESOURCE Tax Provisionagainst: Avalara, Vertex Income TaxThomson Reuters ONESOURCE Tax Provisionno first choicenothing named
Three alternatives
CSC Corptax Accounting for Income Taxes, Longview Tax, Oracle Tax ReportingTwo alternatives
CSC Corptax Accounting for Income Taxes, Sovos Tax ProvisionSix alternatives
Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, Longview Tax, Oracle Tax Reporting, PowerPlan, SAP tax capabilitiesOne alternative
CSC Corptax Accounting for Income TaxesGrok 4.20Thomson Reuters ONESOURCE Tax Provisionagainst: Sovos Tax ProvisionThomson Reuters ONESOURCE Tax ProvisionHeldagainst: AvalaraThomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax Provisionagainst: Oracle Tax Management, SAP Tax Provisioning, Workday Taxagainst: Standalone Spreadsheets
Three alternatives
CSC Corptax Accounting for Income Taxes, Longview Tax, Vertex Corporate TaxOne alternative
CSC Corptax Accounting for Income TaxesFive alternatives
Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, Exactera Tax Provision, Longview Tax, Vertex Tax AccountingTwo alternatives
Bloomberg Tax Provision, CSC Corptax Accounting for Income TaxesFour alternatives
Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, Longview Tax, Wolters Kluwer CCH Tagetik Tax ProvisionMistral SmallThomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax Provision, VertexChangedThomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax Provisionno first choiceagainst: Excel
Two alternatives
CCH Axcess Tax, CSC Corptax Accounting for Income TaxesOne alternative
AvalaraSeven alternatives
Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, Longview Tax, OneStream Tax Provision, Oracle Tax Reporting, PowerPlan, Vertex Tax AccountingTwo alternatives
OneStream Tax Provision, Vertex Tax AccountingDeepSeek V4 FlashThomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax ProvisionHeldagainst: Vertex, Wolters KluwerThomson Reuters ONESOURCE Tax ProvisionCSC Corptax Accounting for Income Taxes, Thomson Reuters ONESOURCE Tax Provisionagainst: Bloomberg Tax Provision, Longview Tax, Oracle Tax ReportingThomson Reuters ONESOURCE Tax Provisionagainst: Bloomberg Tax Provision, Lucasys Tax Provisionagainst: Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, Excel, Longview Tax, TaxAct Business, Thomson Reuters ONESOURCE Tax Provision, TurboTax Business
Two alternatives
Bloomberg Tax Provision, CSC Corptax Accounting for Income TaxesOne alternative
CSC Corptax Accounting for Income TaxesFive alternatives
Bloomberg Tax Provision, CCH Tagetik Tax Provision & Reporting, OneStream Tax Provision, Oracle Tax Reporting, Vertex Tax AccountingTwo alternatives
CSC Corptax Accounting for Income Taxes, Longview TaxLlama 4 MaverickThomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax ProvisionHeldno first choiceThomson Reuters ONESOURCE Tax Provisionno first choiceagainst: Excel
Five alternatives
Avalara, CSC Corptax Accounting for Income Taxes, OneStream Tax Provision, Taxfyle, Vertex Tax AccountingTwo alternatives
Rhino Making Tax Digital, Sovos Tax ProvisionQwen 3.7 FlashCSC Corptax Accounting for Income Taxes, Thomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax ProvisionChangedThomson Reuters ONESOURCE Tax Provision, Wolters KluwareOneStream Tax Provisionno first choicenothing named
One alternative
Longview TaxThree alternatives
Avalara, Sovos Systems, VertexThree alternatives
BlackLine, OneWorld Tax Solutions, SRTTwo alternatives
CSC Corptax Accounting for Income Taxes, Thomson Reuters ONESOURCE Tax ProvisionKimi K2Thomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax ProvisionHeldThomson Reuters ONESOURCE Tax ProvisionCSC Corptax Accounting for Income TaxesThomson Reuters ONESOURCE Tax Provisionagainst: NetSuite
Three alternatives
Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, Longview TaxTwo alternatives
Avalara, VertexFour alternatives
Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, Longview Tax, OneStream Tax ProvisionTwo alternatives
Thomson Reuters ONESOURCE Tax Provision, VertexFour alternatives
Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, Diligent, Longview TaxGLM 4.7 FlashXThomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax ProvisionHeldThomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax Provisionno first choiceagainst: Bloomberg Tax provision solutions, Oracle Hyperion Tax Provision, Thomson Reuters ONESOURCE Tax Provision
Three alternatives
CSC Corptax Accounting for Income Taxes, Vertex Corporate Tax, Wolters Kluwer CCH Tagetik Tax ProvisionTwo alternatives
Sovos Tax Provision, VertexTwelve alternatives
Avalara, Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, Longview Tax, OneStream Tax Provision, Oracle Hyperion Tax Provision, SAP ONESOURCE Tax Provision for SAP S/4HANA, Sovos Tax Provision, Taxfyle, Vertex Tax Accounting, Vertex Tax Provision, Wolters Kluwer CCH Tagetik Tax ProvisionOne alternative
CSC Corptax Accounting for Income TaxesMiniMax M2.5Thomson Reuters – CorpTaxagainst: Avalara, Sovos Tax Provision, Workiva Tax and ProvisionThomson Reuters ONESOURCE Tax Provision, VertexChangedBloomberg Tax Provision, CSC Corptax Accounting for Income TaxesThomson Reuters ONESOURCE Tax Provisionagainst: CCH Axcess, UltraTaxno first choicenothing named
Four alternatives
Oracle Tax Reporting, SAP Tax Compliance, Thomson Reuters – OneSource Tax Provision, VertexThree alternatives
Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, GoSystem Tax RSFour alternatives
Sovos Tax Provision, Thomson Reuters ONESOURCE Tax Provision, Vertex, Vertex Income TaxThree alternatives
Longview Tax, OneStream Tax Provision, Sovos Tax ProvisionGPT-6 LunaThomson Reuters ONESOURCE Tax ProvisionCSC Corptax Accounting for Income TaxesChangedThomson Reuters ONESOURCE Tax ProvisionLongview Taxagainst: Oracle Tax Reportingno first choiceagainst: Excel
Three alternatives
CSC Corptax AIT, Longview Tax, Oracle Tax ReportingTwo alternatives
Thomson Reuters ONESOURCE Income Tax, Wolters Kluwer CCH IntegratorSeven alternatives
Bloomberg Tax Provision, CCH Tagetik Tax Provision & Reporting, CSC Corptax Accounting for Income Taxes, Longview Tax, OneStream Tax Provision, Oracle Tax Reporting, Tax Technologies Tax Series ProvisionTwo alternatives
CSC Corptax Accounting for Income Taxes, Thomson Reuters ONESOURCE Tax ProvisionMuse Glimmer 30BThomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax ProvisionHeldThomson Reuters ONESOURCE Tax ProvisionThomson Reuters ONESOURCE Tax Provisionagainst: CCH Tagetik Tax Provision & ReportingThomson Reuters ONESOURCE Tax Provision, Wolters Kluwer CCH solutionsagainst: CSC Corptax Accounting for Income Taxes, Excel, Longview Tax, NetSuite, Oracle Tax Reporting, Thomson Reuters ONESOURCE Tax Provision, Workiva Tax and Provision
Four alternatives
CSC Corptax Accounting for Income Taxes, OneStream Tax Provision, Sovos Tax Provision, Vertex Tax AccountingTwo alternatives
Longview Tax, SymmetrySix alternatives
CSC Corptax Accounting for Income Taxes, Insightsoftware Longview Tax Provision, Oracle Tax Reporting, SAP Tax Compliance, Vertex Tax Accounting, Wolters Kluwer CCH Tagetik Tax ProvisionTwo alternatives
Longview Tax, Oracle Tax ReportingBold is the first choiceAlternatives are counted; the count opens them.What the answer argued against
The record
One row per call: the version string exactly as returned, whether the model searched, sources cited, and latency.
Eighty-four rows: every prompt, every model, every answer.
| Prompt | Model | Version string | Time (UTC) | Searched | Sources | Latency |
|---|---|---|---|---|---|---|
| Direct recommendation | Claude Haiku 4.5 | claude-haiku-4-5-20251001 | 2026-11-01 08:47 | yes | 15 | 9 s |
| Direct recommendation | GPT-5.4 mini | gpt-5.4-mini-2026-03-17 | 2026-11-01 12:27 | yes | 5 | 6 s |
| Direct recommendation | Gemini 3.5 Flash | gemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version) | 2026-11-01 11:00 | yes | 10 | 21 s |
| Direct recommendation | Perplexity Sonar | sonar | 2026-11-01 12:53 | yes | 10 | 4 s |
| Direct recommendation | Grok 4.20 | spacexai/grok-4.20-non-reasoning via xai | 2026-11-01 13:21 | yes | 10 | 26 s |
| Direct recommendation | Mistral Small | mistral/mistral-small via mistral | 2026-11-01 12:10 | yes | 5 | 3 s |
| Direct recommendation | DeepSeek V4 Flash | deepseek/deepseek-v4-flash via deepinfra | 2026-11-01 10:35 | yes | 15 | 21 s |
| Direct recommendation | Llama 4 Maverick | meta/llama-4-maverick via bedrock | 2026-11-01 12:02 | yes | 5 | 2 s |
| Direct recommendation | Qwen 3.7 Flash | alibaba/qwen3.7-flash via alibaba | 2026-11-01 11:49 | yes | 18 | 96 s |
| Direct recommendation | Kimi K2 | moonshotai/kimi-k2 via novita | 2026-11-01 09:18 | yes | 13 | 75 s |
| Direct recommendation | GLM 4.7 FlashX | zai/glm-4.7-flashx via zai | 2026-11-01 08:58 | yes | 24 | 105 s |
| Direct recommendation | MiniMax M2.5 | minimax/minimax-m2.5 via minimax | 2026-11-01 11:07 | no | 0 | 78 s |
| Direct recommendation | GPT-6 Luna | gpt-6-luna | 2026-11-01 10:06 | yes | 4 | 13 s |
| Direct recommendation | Muse Glimmer 30B | meta/muse-glimmer-30b via togetherai | 2026-11-01 09:18 | yes | 15 | 17 s |
| Paraphrase | Claude Haiku 4.5 | claude-haiku-4-5-20251001 | 2026-11-01 09:40 | yes | 20 | 9 s |
| Paraphrase | GPT-5.4 mini | gpt-5.4-mini-2026-03-17 | 2026-11-01 08:51 | yes | 3 | 6 s |
| Paraphrase | Gemini 3.5 Flash | gemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version) | 2026-11-01 09:41 | no | 0 | 16 s |
| Paraphrase | Perplexity Sonar | sonar | 2026-11-01 09:08 | yes | 10 | 4 s |
| Paraphrase | Grok 4.20 | spacexai/grok-4.20-non-reasoning via xai | 2026-11-01 13:06 | yes | 5 | 31 s |
| Paraphrase | Mistral Small | mistral/mistral-small via mistral | 2026-11-01 11:52 | yes | 5 | 23 s |
| Paraphrase | DeepSeek V4 Flash | deepseek/deepseek-v4-flash via deepinfra | 2026-11-01 11:39 | yes | 25 | 21 s |
| Paraphrase | Llama 4 Maverick | meta/llama-4-maverick via bedrock | 2026-11-01 11:08 | yes | 5 | 3 s |
| Paraphrase | Qwen 3.7 Flash | alibaba/qwen3.7-flash via alibaba | 2026-11-01 09:47 | yes | 5 | 24 s |
| Paraphrase | Kimi K2 | moonshotai/kimi-k2 via novita | 2026-11-01 12:15 | yes | 15 | 25 s |
| Paraphrase | GLM 4.7 FlashX | zai/glm-4.7-flashx via zai | 2026-11-01 11:21 | yes | 18 | 22 s |
| Paraphrase | MiniMax M2.5 | minimax/minimax-m2.5 via minimax | 2026-11-01 11:20 | yes | 5 | 24 s |
| Paraphrase | GPT-6 Luna | gpt-6-luna | 2026-11-01 12:21 | yes | 4 | 11 s |
| Paraphrase | Muse Glimmer 30B | meta/muse-glimmer-30b via togetherai | 2026-11-01 11:19 | yes | 12 | 21 s |
| Comparative | Claude Haiku 4.5 | claude-haiku-4-5-20251001 | 2026-11-01 09:49 | yes | 13 | 9 s |
| Comparative | GPT-5.4 mini | gpt-5.4-mini-2026-03-17 | 2026-11-01 09:46 | yes | 5 | 13 s |
| Comparative | Gemini 3.5 Flash | gemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version) | 2026-11-01 09:47 | yes | 11 | 22 s |
| Comparative | Perplexity Sonar | sonar | 2026-11-01 10:03 | yes | 10 | 6 s |
| Comparative | Grok 4.20 | spacexai/grok-4.20-non-reasoning via xai | 2026-11-01 13:17 | yes | 10 | 32 s |
| Comparative | Mistral Small | mistral/mistral-small via mistral | 2026-11-01 09:25 | yes | 5 | 6 s |
| Comparative | DeepSeek V4 Flash | deepseek/deepseek-v4-flash via deepinfra | 2026-11-01 10:04 | yes | 23 | 28 s |
| Comparative | Llama 4 Maverick | meta/llama-4-maverick via bedrock | 2026-11-01 12:57 | yes | 5 | 3 s |
| Comparative | Qwen 3.7 Flash | alibaba/qwen3.7-flash via alibaba | 2026-11-01 12:16 | no | 0 | 37 s |
| Comparative | Kimi K2 | moonshotai/kimi-k2 via novita | 2026-11-01 10:47 | yes | 19 | 39 s |
| Comparative | GLM 4.7 FlashX | zai/glm-4.7-flashx via zai | 2026-11-01 10:41 | yes | 13 | 53 s |
| Comparative | MiniMax M2.5 | minimax/minimax-m2.5 via minimax | 2026-11-01 09:21 | yes | 24 | 68 s |
| Comparative | GPT-6 Luna | gpt-6-luna | 2026-11-01 11:35 | yes | 8 | 23 s |
| Comparative | Muse Glimmer 30B | meta/muse-glimmer-30b via togetherai | 2026-11-01 10:30 | yes | 14 | 31 s |
| Budget constrained | Claude Haiku 4.5 | claude-haiku-4-5-20251001 | 2026-11-01 11:06 | yes | 19 | 8 s |
| Budget constrained | GPT-5.4 mini | gpt-5.4-mini-2026-03-17 | 2026-11-01 10:04 | yes | 2 | 5 s |
| Budget constrained | Gemini 3.5 Flash | gemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version) | 2026-11-01 10:25 | yes | 16 | 29 s |
| Budget constrained | Perplexity Sonar | sonar | 2026-11-01 09:16 | yes | 10 | 4 s |
| Budget constrained | Grok 4.20 | spacexai/grok-4.20-non-reasoning via xai | 2026-11-01 13:18 | yes | 10 | 27 s |
| Budget constrained | Mistral Small | mistral/mistral-small via mistral | 2026-11-01 09:06 | yes | 5 | 4 s |
| Budget constrained | DeepSeek V4 Flash | deepseek/deepseek-v4-flash via deepinfra | 2026-11-01 11:20 | yes | 25 | 24 s |
| Budget constrained | Llama 4 Maverick | meta/llama-4-maverick via bedrock | 2026-11-01 10:24 | yes | 5 | 2 s |
| Budget constrained | Qwen 3.7 Flash | alibaba/qwen3.7-flash via alibaba | 2026-11-01 12:02 | yes | 5 | 37 s |
| Budget constrained | Kimi K2 | moonshotai/kimi-k2 via novita | 2026-11-01 12:50 | yes | 24 | 32 s |
| Budget constrained | GLM 4.7 FlashX | zai/glm-4.7-flashx via zai | 2026-11-01 12:27 | yes | 24 | 65 s |
| Budget constrained | MiniMax M2.5 | minimax/minimax-m2.5 via minimax | 2026-11-01 12:37 | yes | 24 | 51 s |
| Budget constrained | GPT-6 Luna | gpt-6-luna | 2026-11-01 10:18 | yes | 3 | 22 s |
| Budget constrained | Muse Glimmer 30B | meta/muse-glimmer-30b via togetherai | 2026-11-01 10:58 | yes | 25 | 38 s |
| Scale constrained | Claude Haiku 4.5 | claude-haiku-4-5-20251001 | 2026-11-01 09:48 | yes | 18 | 11 s |
| Scale constrained | GPT-5.4 mini | gpt-5.4-mini-2026-03-17 | 2026-11-01 12:16 | no | 0 | 7 s |
| Scale constrained | Gemini 3.5 Flash | gemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version) | 2026-11-01 09:25 | no | 0 | 21 s |
| Scale constrained | Perplexity Sonar | sonar | 2026-11-01 09:03 | yes | 10 | 9 s |
| Scale constrained | Grok 4.20 | spacexai/grok-4.20-non-reasoning via xai | 2026-11-01 13:13 | yes | 14 | 39 s |
| Scale constrained | Mistral Small | mistral/mistral-small via mistral | 2026-11-01 10:39 | no | 0 | 7 s |
| Scale constrained | DeepSeek V4 Flash | deepseek/deepseek-v4-flash via deepinfra | 2026-11-01 12:34 | yes | 24 | 40 s |
| Scale constrained | Llama 4 Maverick | meta/llama-4-maverick via bedrock | 2026-11-01 11:56 | yes | 5 | 3 s |
| Scale constrained | Qwen 3.7 Flash | alibaba/qwen3.7-flash via alibaba | 2026-11-01 11:30 | no | 0 | 29 s |
| Scale constrained | Kimi K2 | moonshotai/kimi-k2 via novita | 2026-11-01 10:02 | no | 0 | 62 s |
| Scale constrained | GLM 4.7 FlashX | zai/glm-4.7-flashx via zai | 2026-11-01 12:17 | yes | 22 | 193 s |
| Scale constrained | MiniMax M2.5 | minimax/minimax-m2.5 via minimax | 2026-11-01 12:53 | yes | 20 | 28 s |
| Scale constrained | GPT-6 Luna | gpt-6-luna | 2026-11-01 10:24 | yes | 4 | 23 s |
| Scale constrained | Muse Glimmer 30B | meta/muse-glimmer-30b via togetherai | 2026-11-01 11:44 | yes | 25 | 35 s |
| Negative framing | Claude Haiku 4.5 | claude-haiku-4-5-20251001 | 2026-11-01 11:54 | yes | 19 | 9 s |
| Negative framing | GPT-5.4 mini | gpt-5.4-mini-2026-03-17 | 2026-11-01 10:28 | yes | 6 | 5 s |
| Negative framing | Gemini 3.5 Flash | gemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version) | 2026-11-01 11:28 | no | 0 | 17 s |
| Negative framing | Perplexity Sonar | sonar | 2026-11-01 10:24 | yes | 10 | 4 s |
| Negative framing | Grok 4.20 | spacexai/grok-4.20-non-reasoning via xai | 2026-11-01 13:27 | yes | 5 | 27 s |
| Negative framing | Mistral Small | mistral/mistral-small via mistral | 2026-11-01 08:55 | yes | 5 | 7 s |
| Negative framing | DeepSeek V4 Flash | deepseek/deepseek-v4-flash via deepinfra | 2026-11-01 10:53 | yes | 22 | 55 s |
| Negative framing | Llama 4 Maverick | meta/llama-4-maverick via bedrock | 2026-11-01 10:23 | yes | 5 | 3 s |
| Negative framing | Qwen 3.7 Flash | alibaba/qwen3.7-flash via alibaba | 2026-11-01 12:55 | yes | 8 | 48 s |
| Negative framing | Kimi K2 | moonshotai/kimi-k2 via novita | 2026-11-01 09:21 | yes | 19 | 27 s |
| Negative framing | GLM 4.7 FlashX | zai/glm-4.7-flashx via zai | 2026-11-01 12:15 | yes | 20 | 77 s |
| Negative framing | MiniMax M2.5 | minimax/minimax-m2.5 via minimax | 2026-11-01 12:24 | yes | 14 | 48 s |
| Negative framing | GPT-6 Luna | gpt-6-luna | 2026-11-01 09:21 | yes | 4 | 17 s |
| Negative framing | Muse Glimmer 30B | meta/muse-glimmer-30b via togetherai | 2026-11-01 08:48 | yes | 22 | 30 s |
Normalization in this category
Every judgment call made between the raw labels and the numbers above, listed so it is visible and reversible.
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Category-scoped readings
Bloomberg read as Bloomberg Tax Provision
Bloomberg Tax Technology read as Bloomberg Tax Provision
CCH Tagetik (Wolters Kluwer) read as Wolters Kluwer CCH Tagetik Tax Provision
CSC Corptax read as CSC Corptax Accounting for Income Taxes
CSC Corptax (Corptax Provision) read as CSC Corptax Accounting for Income Taxes
CSC Corptax (Wolters Kluwer) read as CSC Corptax Accounting for Income Taxes
CSC Corptax (with AIT for Provision) read as CSC Corptax Accounting for Income Taxes
Corptax read as CSC Corptax Accounting for Income Taxes
Corptax (CSC Global) read as CSC Corptax Accounting for Income Taxes
Insightsoftware (Longview Tax) read as Longview Tax
Longview read as Longview Tax
Lucasys read as Lucasys Tax Provision
ONESOURCE read as Thomson Reuters ONESOURCE Tax Provision
Oracle Cloud EPM Tax Reporting read as Oracle Tax Reporting
Sovos read as Sovos Tax Provision
Thomson Reuters read as Thomson Reuters ONESOURCE Tax Provision
Thomson Reuters (onCore™ / EcoSys) read as Thomson Reuters ONESOURCE Tax Provision
Thomson Reuters ONESOURCE read as Thomson Reuters ONESOURCE Tax Provision
Wolters Kluwer CCH Tagetik read as Wolters Kluwer CCH Tagetik Tax Provision
Workiva read as Workiva Tax and Provision
Workiva (Tax Provision & Reporting) read as Workiva Tax and Provision
Workiva Tax Provision read as Workiva Tax and Provision
Unresolved, counted raw
ADP Workforce Now
Avalara AvaTax for Enterprise
Avii Workspace
Bloomberg Tax provision solutions
CCH Tagetik Corporate Tax Provision (Wolters Kluwer)
Deltek Cosmos (formerly TaxProManager)
NetSuite tax automation
OneWorld Tax Solutions
Oracle EPM Tax
Oracle Tax Management
Rhino Making Tax Digital
SAP ONESOURCE Tax Provision for SAP S/4HANA
SAP Tax Provisioning
SAP tax capabilities
SRT (Specialized Tax Resources)
Sovos Systems
Standalone Spreadsheets (e.g., Excel-based models)
Symmetry
Thomson Reuters – CorpTax
Thomson Reuters – OneSource Tax Provision
Wolters Kluware (CCH® Axcess® Provenance™)
Wolters Kluwer CCH / CorpTax
Wolters Kluwer CCH solutions
Workday Tax
Discontinued, still offered
No shut-down product was recommended here.