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Corporate tax provision · November 2026 Edition

Avalara vs CSC Corptax Accounting for Income Taxes

One of fourteen models named Avalara first on the direct prompt; zero named CSC Corptax Accounting for Income Taxes. Avalara was named by eleven of the fourteen models and CSC Corptax Accounting for Income Taxes by twelve and Avalara carries 19 labels and CSC Corptax Accounting for Income Taxes 28, so the shares are not directly comparable.

Avalara

accepted challenger

Named in four categories this edition.

Named in one category this edition.

First-choice share5%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate21%32%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#4#7A position in a field of 11; printed, not drawn.
Labels1928A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Avalara reading right to left. Rank and label count are printed, not drawn.Thomson Reuters ONESOURCE Tax Provision was named alongside these two in thirteen of the fourteen direct answers. Bloomberg Tax Provision vs Avalara · Bloomberg Tax Provision vs CSC Corptax Accounting for Income Taxes · Thomson Reuters ONESOURCE Tax Provision vs Avalara

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the corporate tax provision page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
AvalaraFirst choices, of fourteen modelsCSC Corptax Accounting for Income Taxes
Direct101 against CSC Corptax Accounting for Income Taxes
Paraphrase212 against Avalara
Comparative012 against Avalara
Budget-constrained005 against CSC Corptax Accounting for Income Taxes
Scale-constrained00
Negative003 against CSC Corptax Accounting for Income Taxes
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Across every category in the November 2026 Edition, Avalara and CSC Corptax Accounting for Income Taxes were named in the same answer fourteen times, of the 78 answers naming Avalara and the 94 naming CSC Corptax Accounting for Income Taxes. In those answers CSC Corptax Accounting for Income Taxes took the first choice one time and Avalara zero.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Avalara and CSC Corptax Accounting for Income Taxes stood in it.
ModelDirectCCParaphraseCCComparativeCCBudget-constrainedCCScale-constrainedCCNegativeCC
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 FlashCCCCCCCCCCCC
Perplexity SonarCCCC
Grok 4.20CCCC
Mistral SmallCC
DeepSeek V4 FlashCCCCCC
Llama 4 MaverickCC
Qwen 3.7 FlashCC
Kimi K2CCCC
GLM 4.7 FlashXCC
MiniMax M2.5CCCC
GPT-6 Luna
Muse Glimmer 30BCCCC
AvalaraCC CSC Corptax Accounting for Income Taxes first choice named as an alternative argued againstblank: not namedEach cell is one answer, Avalara on the left and CSC Corptax Accounting for Income Taxes on the right.

The direct prompt

The plain question, one answer per model, grouped by where Avalara and CSC Corptax Accounting for Income Taxes stood in it.

Avalara first, CSC Corptax Accounting for Income Taxes not the choice

1 of 14 modelsCSC Corptax Accounting for Income Taxes was named in the answer but not as the choice, or not at all.
GLM 4.7 FlashXAvalara, Thomson Reuters ONESOURCE Tax Provision alternatives: Bloomberg Tax Provision, Commenda, Longview Tax

Neither was the first choice, one was named

6 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Gemini 3.5 FlashBloomberg Tax Provision alternatives: CSC Corptax Accounting for Income Taxes, OneStream Tax Provision, Oracle Tax Reporting, Thomson Reuters ONESOURCE Tax Provision, Workiva Tax and Provision
Grok 4.20Thomson Reuters ONESOURCE Tax Provision alternatives: Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, Exactera Tax Provision, Longview Tax
Llama 4 MaverickTaxfyle alternatives: Avalara, Longview Tax, Thomson Reuters ONESOURCE Tax Provision
Qwen 3.7 FlashBloomberg Tax Provision, Thomson Reuters ONESOURCE Tax Provision alternatives: CSC Corptax Accounting for Income Taxes, Longview Tax
Kimi K2Bloomberg Tax Provision alternatives: CSC Corptax Accounting for Income Taxes, Longview Tax, Thomson Reuters ONESOURCE Tax Provision
Muse Glimmer 30BTaxfyle alternatives: Avalara, Bloomberg Tax Provision, Longview Tax by insightsoftware, Thomson Reuters ONESOURCE Tax Provision

Neither was named

7 of 14 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5Bloomberg Tax Provision, OneStream Tax Provision alternatives: CCH Axcess Tax from Wolters Kluwer, CSC Corptax AIT
GPT-5.4 miniWolters Kluwer CCH Tagetik Tax Provision alternatives: Longview Tax, Thomson Reuters ONESOURCE Tax Provision
Perplexity SonarBloomberg Tax Provision alternatives: Longview Tax, Thomson Reuters ONESOURCE Tax Provision
Mistral SmallBloomberg Tax Provision, Thomson Reuters ONESOURCE Tax Provision alternatives: Taxfyle
DeepSeek V4 FlashThomson Reuters ONESOURCE Tax Provision alternatives: Bloomberg Tax Provision, Longview Tax
MiniMax M2.5Bloomberg Tax Provision, Thomson Reuters ONESOURCE Tax Provision alternatives: Account Ability, Longview Tax
GPT-6 LunaThomson Reuters ONESOURCE Tax Provision alternatives: Corptax AIT, Longview Tax, Tax Series

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Avalara leads by eight points.
Avalara8%#4 of 11
CSC Corptax Accounting for Income Taxes0%#11 of 11
The full small business standing →
Mid-marketThe figures above
Avalara leads by three points.
Avalara5%#4 of 11
CSC Corptax Accounting for Income Taxes2%#7 of 11
The full mid-market standing →
Enterprise
The order flips: CSC Corptax Accounting for Income Taxes leads at enterprise.
CSC Corptax Accounting for Income Taxes8%#2 of 10
Avalara0%#10 of 10
The full enterprise standing →

What the models said about Avalara

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of seven in this category shown.

“Avalara should generally not be treated as a primary ASC 740 provision tool” Perplexity Sonar · comparative prompt · hard negative
“it's not primarily a corporate income tax compliance tool... it shouldn't be your primary income tax compliance system” DeepSeek V4 Flash · paraphrase prompt · soft negative
“Cons: Primarily focused on indirect tax, not corporate income tax.” Qwen 3.7 Flash · paraphrase prompt · soft negative
“I recommend Avalara as the top choice for comprehensive income tax compliance and related regulatory needs” Grok 4.20 · paraphrase prompt · first choice
“Avalara would be my primary recommendation because it specifically addresses B2B compliance needs” MiniMax M2.5 · paraphrase prompt · first choice
“Thomson Reuters ONESOURCE Tax Provision and Avalara are the top choices” GLM 4.7 FlashX · direct prompt · first choice

What the models said about CSC Corptax Accounting for Income Taxes

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.

“Avoid as a first choice on a tight budget: ONESOURCE, CSC Corptax, and similar enterprise suites” Perplexity Sonar · budget prompt · hard negative
“Avoid ONESOURCE and Corptax unless you have a Fortune-500-style tax department.” Muse Glimmer 30B · negative prompt · hard negative
“should be avoided or used with caution include: ... Corptax” Llama 4 Maverick · negative prompt · hard negative
“Choose CSC Corptax or ONESOURCE if you have a dedicated in-house corporate tax manager needing end-to-end provision and return automation.” Gemini 3.5 Flash · paraphrase prompt · first choice
“Choose ONESOURCE or Corptax for a broad corporate-tax platform” Perplexity Sonar · comparative prompt · first choice
“Often recommended for companies that want to combine their provision work with state/federal return preparation in one place.” Qwen 3.7 Flash · direct prompt · alternative
Also compared

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.