September 2026 Edition, published · The permanent record of that edition, superseded since. The current standing is on the category page →
Index › Finance › Tax and compliance › Sales tax automation › Enterprise · September 2026 Edition

Sales tax automation for enterprise buyers

Asked as “sales tax compliance software”, and as “sales tax calculation and filing tool”, on behalf of an enterprise B2B company. 50 first choices recorded across the direct, paraphrase, budget and scale prompts, twelve models each.
Standing · first-choice share
44%
Clear leader
44Avalara AvaTax38Vertex04Taxwire14others

44% of first choices, clear leader.

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.

The standing

Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all twelve models, for an enterprise B2B company. Ordered by share.
ProductFirst-choice shareNegative rateLabelsQuadrant
01Avalara AvaTax44%24%67endorsed leader
02Vertex38%11%64endorsed leader
03Zamp4%8%12accepted challenger
04Thomson Reuters ONESOURCE2%17%24accepted challenger
05Anrok2%31%16criticized challenger
Show the two products at 0%, ordered by negative rate
07TaxJar0%65%26criticized challenger
06Sovos Intelligent Compliance Cloud0%15%41accepted challenger
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.
Head to headHead-to-head pages are published for mid-market buyers, so these open on mid-market figures, not enterprise.
All ten head-to-head pages: the top five products, each against each

Recommended versus criticized

Every product with at least 10 labels here, on both axes. The 30% line names a quadrant, not the verdict above: that one needs more than 40%.

Criticized challengerCriticized default
Negative label rate →
01
02
03
04
05
S06
07
Accepted challengerEndorsed leader
0%First-choice share → · lines at 30% share and 25% negative60%
Key
01Avalara AvaTax44%
02Vertex38%
03Zamp4%
04Thomson Reuters ONESOURCE2%
05Anrok2%
06Sovos Intelligent Compliance Cloud0%
07TaxJar0%

What they warned about

Seven of twelve models held their first choice under the paraphrase. Perplexity Sonar, Mistral Small, DeepSeek V4 Flash, Llama 4 Maverick and MiniMax M2.5 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.
Avalara AvaTax
24%
16 of 67 labels negative · 11 of 12 models · 1 hard negative
“Why You Should Avoid "Variable SaaS" Platforms (Like Avalara AvaTax)” Gemini 3.5 Flash, budget prompt
TaxJar
65%
17 of 26 labels negative · 9 of 12 models · 7 hard negative
“Smaller "plug-in" tools like TaxJar are generally a poor fit at your scale (US-only, SMB pricing tiers, fewer enterprise security controls).” DeepSeek V4 Flash, scale prompt
Vertex
11%
7 of 64 labels negative · 7 of 12 models
“While established players (like early versions of Avalara or Vertex) have longevity, very old platforms may lack the agility to handle modern complexities” GLM 4.7 FlashX, negative prompt
TaxCloud
86%
6 of 7 labels negative · 6 of 12 models · 3 hard negative
“Why to avoid: While strong for mid-market US e-commerce, it is US-centric and lacks the international VAT/GST depth” DeepSeek V4 Flash, negative prompt

What they cite

Twelve of the twelve models returned a source list in this edition: four return the pages they cited and eight the search results they consulted.

Sites the answers cite

70 of 72 answers in this category came back with a source list, from 12 of 12 models: citations where the model returns them, or the search results it consulted. 1046 links across 152 sites, every framing counted. Ranked by the number of answers carrying the site or page.

vendor site · TaxCloud49 answers · 80 citations · 11 models
vendor site · Avalara45 answers · 94 citations · 12 models
vendor site · Zamp44 answers · 86 citations · 12 models
vendor site · G242 answers · 42 citations · 12 models
vendor site · Guideflow40 answers · 74 citations · 11 models
vendor site · Galvix36 answers · 42 citations · 10 models
vendor site · Taxwire33 answers · 45 citations · 11 models
vendor site · Anrok27 answers · 30 citations · 10 models
22 answers · 22 citations · 8 models
vendor site · G218 answers · 39 citations · 7 models
vendor site · TaxJar18 answers · 20 citations · 6 models
vendor site · Worldmetrics16 answers · 26 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.

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 sales tax compliance software”, “sales tax compliance software”, “sales tax 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 productsShareOwn site citedName searches, GoogleAI search demand, est.Organic visitsPaid search a month, est.Google ads, last 30 daysBest Google position
Avalara avalara.com
Avalara AvaTax 44%
44%17227,1007032,604,517 company$21,4701081
Vertex vertexinc.com38%190110,00013,80732,080$3,975696
Zamp zamp.com4%492,90026224,260$5888
Taxwire taxwire.com4%38480332,5450
Thomson Reuters thomsonreuters.com
Thomson Reuters ONESOURCE 2%
2%5759053,055,379 company$3131203
Anrok anrok.com2%783,6004312,295$1,852855
Prophit.ai prophit.ai2%1
Sphere getsphere.com2%28
Numeral numeral.com2%4614,80038,00666,125$26120
Sovos sovos.com
Sovos Intelligent Compliance Cloud 0%
0%773,60022095,951 company93

Google's top ten for the three searches hold 15 sites; 5 of them are among the sites the models cited here (anrok.com, avalara.com, galvix.com, taxcloud.com, taxjar.com). The first result for “best sales tax compliance software” is avalara.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.
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ModelDirect“What is the best sales tax compliance software for an enterprise B2B company?”Paraphrase“Which sales tax calculation and filing tool would you recommend to a large B2B company with thousands of employees?”Comparative“What are the top enterprise-grade sales tax tools and how do they differ?”Budget-constrained“What is the best sales tax compliance 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 sales tax compliance software. What should we look at?”Negative“Which sales tax tools should a large enterprise avoid or be cautious about?”
Claude Haiku 4.5Avalara AvaTax
Three alternativesCCH SureTax, Vertex, Zamp
Avalara AvaTaxHeld
Two alternativesVertex, Zamp
Avalara AvaTax, Vertex
Two alternativesSovos Intelligent Compliance Cloud, Thomson Reuters ONESOURCE
Sphere
One alternativeVertex
against: Avalara AvaTax
no first choiceagainst: Kintsugi, Numeral
GPT-5.4 miniAvalara AvaTax
Two alternativesSovos Intelligent Compliance Cloud, Vertex
Avalara AvaTaxHeld
One alternativeVertex
Avalara AvaTax
Two alternativesSovos Intelligent Compliance Cloud, Vertex
against: TaxJar
Vertex
Two alternativesSovos Intelligent Compliance Cloud, Zamp
against: Avalara AvaTax
no first choiceagainst: ONESOURCE IDT Determination Original
Gemini 3.5 FlashVertex
Three alternativesAnrok, Avalara AvaTax, Sovos Intelligent Compliance Cloud
VertexHeld
Three alternativesAnrok, Avalara AvaTax, Sovos Intelligent Compliance Cloud
Vertex
Four alternativesAnrok, Avalara AvaTax, Sovos Intelligent Compliance Cloud, Thomson Reuters ONESOURCE
Vertex
Three alternativesGalvix, Kintsugi, Sovos Intelligent Compliance Cloud
against: Anrok, Avalara AvaTax
Anrok
Two alternativesSovos Intelligent Compliance Cloud, Vertex
against: Avalara AvaTax
against: Anrok, Avalara AvaTax, Lemon Squeezy, Paddle, Quaderno, Sovos Intelligent Compliance Cloud, Sphere, Stripe Tax, TaxCloud, TaxJar, Thomson Reuters ONESOURCE, Vertex
Perplexity SonarAvalara AvaTax
One alternativeVertex
VertexChanged
Two alternativesAvalara AvaTax, Sovos Intelligent Compliance Cloud
Avalara AvaTax, Vertex
Two alternativesSovos Intelligent Compliance Cloud, Thomson Reuters ONESOURCE
Taxwire
One alternativeAvalara AvaTax
against: Vertex
Avalara AvaTax, Thomson Reuters ONESOURCE, Vertexagainst: Anrok, Avalara AvaTax, Kintsugi, TaxCloud, TaxJar
Grok 4.20Avalara AvaTax, Vertex
One alternativeSovos Intelligent Compliance Cloud
against: TaxJar
Avalara AvaTax, VertexHeldagainst: CCH SureTax, TaxJar, Zampno first choiceVertex
One alternativeTaxwire
against: Anrok, Avalara AvaTax, Sovos Intelligent Compliance Cloud, TaxJar
Avalara AvaTax
Three alternativesSovos Intelligent Compliance Cloud, Vertex, Zamp
against: Avalara AvaTax, NetSuite, Oracle, Quaderno, SAP, TaxJar
Mistral SmallAvalara AvaTax
Two alternativesSovos Intelligent Compliance Cloud, Vertex
Avalara AvaTax, VertexChangedVertex
Three alternativesAnrok, Avalara AvaTax, Fonoa
Vertex
One alternativeAvalara AvaTax
no first choiceagainst: Avalara AvaTax, Vertex
DeepSeek V4 FlashVertex
Two alternativesAvalara AvaTax, Sovos Intelligent Compliance Cloud
against: TaxJar
Avalara AvaTax, VertexChanged
One alternativeThomson Reuters ONESOURCE
against: TaxJar
Avalara AvaTax
Five alternativesAnrok, Sovos Intelligent Compliance Cloud, TaxJar, Vertex, Zamp
Zamp
One alternativeVertex
against: Avalara AvaTax
Vertex
Three alternativesAvalara AvaTax, Sovos Intelligent Compliance Cloud, Thomson Reuters ONESOURCE
against: TaxJar
against: Anrok, Avalara AvaTax, Fonoa, Lappa, Sovos Intelligent Compliance Cloud, TaxCloud, TaxJar, Thomson Reuters ONESOURCE
Llama 4 MaverickAvalara AvaTaxZampChanged
Three alternativesAvalara AvaTax, CCH SureTax, TaxConnex
no first choiceVertexAvalara AvaTax
One alternativeVertex
against: Avalara AvaTax, Sovos Intelligent Compliance Cloud, Vertex
Qwen 3.7 FlashAvalara AvaTax
Two alternativesAnrok, Vertex
against: TaxJar
Avalara AvaTaxHeld
One alternativeVertex
Avalara AvaTax, Vertex
Two alternativesSovos Intelligent Compliance Cloud, Thomson Reuters ONESOURCE
Taxwire
Two alternativesAvalara AvaTax, Vertex
against: Prophit.ai, Sphere, Stripe Tax, TaxJar
no first choiceagainst: Avalara AvaTax, Kintsugi, Lovat, Numeral, QuickBooks Automated Sales Tax, Shopify Tax, TaxCloud, TaxJar, Thomson Reuters ONESOURCE, Vertex
Kimi K2Vertex
Two alternativesAvalara AvaTax, Sovos Intelligent Compliance Cloud
VertexHeld
Two alternativesAvalara AvaTax, Sovos Intelligent Compliance Cloud
Avalara AvaTax
Three alternativesSovos Intelligent Compliance Cloud, Thomson Reuters ONESOURCE, Vertex
Numeral
Two alternativesThomson Reuters ONESOURCE, Vertex
against: Avalara AvaTax, Sovos Intelligent Compliance Cloud, Stripe Tax
Vertex
Two alternativesAvalara AvaTax, Sovos Intelligent Compliance Cloud
against: Avalara AvaTax, CCH SureTax, Quaderno, QuickBooks Automated Sales Tax, Sovos Intelligent Compliance Cloud, TaxCloud, TaxJar, Thomson Reuters ONESOURCE, Vertex
GLM 4.7 FlashXAvalara AvaTax
Three alternativesAnrok, Thomson Reuters ONESOURCE, Vertex
against: TaxCloud, TaxJar
Avalara AvaTaxHeld
Three alternativesThomson Reuters ONESOURCE, Vertex, Zamp
Avalara AvaTax
Four alternativesFonoa, Quadient, Thomson Reuters ONESOURCE, Vertex
Prophit.ai
Four alternativesAvalara AvaTax, TaxJar, Thomson Reuters ONESOURCE, Vertex
against: DAVO
no first choiceagainst: Avalara AvaTax, Vertex
MiniMax M2.5Avalara AvaTax, Vertexagainst: QuickBooks Automated Sales TaxAvalara AvaTaxChanged
Three alternativesSovos Intelligent Compliance Cloud, Thomson Reuters ONESOURCE, Vertex
Avalara AvaTax
Five alternativesAnrok, Sovos Intelligent Compliance Cloud, TaxJar, Vertex, Zamp
Avalara AvaTax
Two alternativesTaxwire, Vertex
against: Prophit.ai
Avalara AvaTax
One alternativeBoomTax
against: TaxJar
Bold 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.
Seventy-two rows: every prompt, every model, every answer.
PromptModelVersion stringTime (UTC)SearchedSourcesLatency
Direct recommendationClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 19:22yes179 s
Direct recommendationGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 19:49yes26 s
Direct recommendationGemini 3.5 Flashgemini-3.5-flash2026-09-17 18:16yes1823 s
Direct recommendationPerplexity Sonarsonar2026-09-17 18:36yes196 s
Direct recommendationGrok 4.20spacexai/grok-4.1-fast-non-reasoning via vertex (asked for grok-4.20-non-reasoning; the API answered as this version)2026-09-17 18:58yes3617 s
Direct recommendationMistral Smallmistral/mistral-small via mistral2026-09-17 18:22yes1310 s
Direct recommendationDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 19:59yes1011 s
Direct recommendationLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 18:09yes52 s
Direct recommendationQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 18:29yes1039 s
Direct recommendationKimi K2moonshotai/kimi-k2 via novita2026-09-17 18:38yes1441 s
Direct recommendationGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 18:59yes1239 s
Direct recommendationMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 19:04yes1327 s
ParaphraseClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 19:07yes1610 s
ParaphraseGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 20:38yes36 s
ParaphraseGemini 3.5 Flashgemini-3.5-flash2026-09-17 21:17yes1458 s
ParaphrasePerplexity Sonarsonar2026-09-17 19:42yes205 s
ParaphraseGrok 4.20spacexai/grok-4.1-fast-non-reasoning via vertex (asked for grok-4.20-non-reasoning; the API answered as this version)2026-09-17 18:24yes2216 s
ParaphraseMistral Smallmistral/mistral-small via mistral2026-09-17 18:05yes53 s
ParaphraseDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 20:36yes1416 s
ParaphraseLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 19:24yes53 s
ParaphraseQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 21:05yes1023 s
ParaphraseKimi K2moonshotai/kimi-k2 via novita2026-09-17 20:44yes1017 s
ParaphraseGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 21:07yes1466 s
ParaphraseMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 17:57yes851 s
ComparativeClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 19:46yes99 s
ComparativeGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 19:06yes37 s
ComparativeGemini 3.5 Flashgemini-3.5-flash2026-09-17 17:57yes1926 s
ComparativePerplexity Sonarsonar2026-09-17 18:41yes207 s
ComparativeGrok 4.20spacexai/grok-4.1-fast-non-reasoning via vertex (asked for grok-4.20-non-reasoning; the API answered as this version)2026-09-17 20:36yes3318 s
ComparativeMistral Smallmistral/mistral-small via mistral2026-09-17 18:22yes109 s
ComparativeDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 20:38yes2423 s
ComparativeLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 20:52yes53 s
ComparativeQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 20:03yes1027 s
ComparativeKimi K2moonshotai/kimi-k2 via novita2026-09-17 20:43yes1939 s
ComparativeGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 17:55yes2596 s
ComparativeMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 20:35yes1624 s
Budget constrainedClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 18:38yes1410 s
Budget constrainedGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 20:52yes36 s
Budget constrainedGemini 3.5 Flashgemini-3.5-flash2026-09-17 21:19yes1959 s
Budget constrainedPerplexity Sonarsonar2026-09-17 18:42yes205 s
Budget constrainedGrok 4.20spacexai/grok-4.1-fast-non-reasoning via vertex (asked for grok-4.20-non-reasoning; the API answered as this version)2026-09-17 20:57yes3822 s
Budget constrainedMistral Smallmistral/mistral-small via mistral2026-09-17 19:41yes55 s
Budget constrainedDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 20:25yes2729 s
Budget constrainedLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 19:36yes52 s
Budget constrainedQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 20:13yes22168 s
Budget constrainedKimi K2moonshotai/kimi-k2 via novita2026-09-17 19:29yes2558 s
Budget constrainedGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 19:24yes1467 s
Budget constrainedMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 20:36yes1951 s
Scale constrainedClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 20:23yes1813 s
Scale constrainedGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 20:28yes68 s
Scale constrainedGemini 3.5 Flashgemini-3.5-flash2026-09-17 19:01yes626 s
Scale constrainedPerplexity Sonarsonar2026-09-17 21:01yes2011 s
Scale constrainedGrok 4.20spacexai/grok-4.1-fast-non-reasoning via vertex (asked for grok-4.20-non-reasoning; the API answered as this version)2026-09-17 18:52yes2014 s
Scale constrainedMistral Smallmistral/mistral-small via mistral2026-09-17 20:16no08 s
Scale constrainedDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 20:07yes2023 s
Scale constrainedLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 18:47yes53 s
Scale constrainedQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 18:04no038 s
Scale constrainedKimi K2moonshotai/kimi-k2 via novita2026-09-17 20:13yes2349 s
Scale constrainedGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 20:28yes2073 s
Scale constrainedMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 20:58yes530 s
Negative framingClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 18:34yes1711 s
Negative framingGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 19:45yes48 s
Negative framingGemini 3.5 Flashgemini-3.5-flash2026-09-17 18:42yes926 s
Negative framingPerplexity Sonarsonar2026-09-17 18:46yes206 s
Negative framingGrok 4.20spacexai/grok-4.1-fast-non-reasoning via vertex (asked for grok-4.20-non-reasoning; the API answered as this version)2026-09-17 18:20yes2918 s
Negative framingMistral Smallmistral/mistral-small via mistral2026-09-17 19:11yes56 s
Negative framingDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-09-17 19:43yes2867 s
Negative framingLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 21:00yes53 s
Negative framingQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 18:38yes547 s
Negative framingKimi K2moonshotai/kimi-k2 via novita2026-09-17 20:16yes2136 s
Negative framingGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 20:29yes21113 s
Negative framingMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 19:28yes2552 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
Avalara read as Avalara AvaTax
Avalara (AvaTax / Avalara for Enterprise) read as Avalara AvaTax
Avalara (AvaTax Enterprise & CertCapture) read as Avalara AvaTax
Avalara (AvaTax) read as Avalara AvaTax
Avalara (Avalara AvaTax / Avalara Platform) read as Avalara AvaTax
DAVO Sales Tax read as DAVO
ONESOURCE (Thomson Reuters) read as Thomson Reuters ONESOURCE
Quadient Taxware read as Quadient
QuickBooks read as QuickBooks Automated Sales Tax
QuickBooks Tax read as QuickBooks Automated Sales Tax
Shopify read as Shopify Tax
Sovos read as Sovos Intelligent Compliance Cloud
Sovos (Compliance Cloud) read as Sovos Intelligent Compliance Cloud
Sovos (Sovos Compliance Cloud) read as Sovos Intelligent Compliance Cloud
Thomson Reuters read as Thomson Reuters ONESOURCE
Thomson Reuters (ONESOURCE) read as Thomson Reuters ONESOURCE
Vertex O Series read as Vertex
Wolters Kluwer CCH SureTax read as CCH SureTax
Unresolved, counted raw
ONESOURCE IDT Determination Original
Discontinued, still offered
No shut-down product was recommended here.
← Internal controlsTransfer pricing →