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Corporate tax provision · November 2026 Edition

Bloomberg Tax Provision vs CSC Corptax Accounting for Income Taxes

Seven of fourteen models named Bloomberg Tax Provision first on the direct prompt; zero named CSC Corptax Accounting for Income Taxes. Bloomberg Tax Provision was named by fourteen of the fourteen models and CSC Corptax Accounting for Income Taxes by twelve and Bloomberg Tax Provision carries 42 labels and CSC Corptax Accounting for Income Taxes 28, so the shares are not directly comparable.

Bloomberg Tax Provision

accepted challenger

Named in one category this edition.

Named in one category this edition.

First-choice share19%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate17%32%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#7A position in a field of 11; printed, not drawn.
Labels4228A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Bloomberg Tax Provision 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 Thomson Reuters ONESOURCE Tax Provision · Bloomberg Tax Provision vs Longview Tax · Bloomberg 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.
Bloomberg Tax ProvisionFirst choices, of fourteen modelsCSC Corptax Accounting for Income Taxes
Direct701 against CSC Corptax Accounting for Income Taxes
Paraphrase21
Comparative01
Budget-constrained106 against Bloomberg Tax Provision · 5 against CSC Corptax Accounting for Income Taxes
Scale-constrained10
Negative001 against Bloomberg Tax Provision · 3 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, Bloomberg Tax Provision and CSC Corptax Accounting for Income Taxes were named in the same answer fifty-six times, of the 103 answers naming Bloomberg Tax Provision and the 94 naming CSC Corptax Accounting for Income Taxes. In those answers CSC Corptax Accounting for Income Taxes took the first choice two times and Bloomberg Tax Provision thirteen.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Bloomberg Tax Provision 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
Bloomberg Tax ProvisionCC CSC Corptax Accounting for Income Taxes first choice named as an alternative argued againstblank: not namedEach cell is one answer, Bloomberg Tax Provision 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 Bloomberg Tax Provision and CSC Corptax Accounting for Income Taxes stood in it.

Bloomberg Tax Provision first, CSC Corptax Accounting for Income Taxes an alternative

7 of 14 modelsCSC Corptax Accounting for Income Taxes was named in the answer but not as the choice, or not at all.
Claude Haiku 4.5Bloomberg Tax Provision, OneStream Tax Provision alternatives: CCH Axcess Tax from Wolters Kluwer, CSC Corptax AIT
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
Perplexity SonarBloomberg Tax Provision alternatives: Longview Tax, Thomson Reuters ONESOURCE Tax Provision
Mistral SmallBloomberg Tax Provision, Thomson Reuters ONESOURCE Tax Provision alternatives: Taxfyle
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
MiniMax M2.5Bloomberg Tax Provision, Thomson Reuters ONESOURCE Tax Provision alternatives: Account Ability, Longview Tax

Neither was the first choice, one was named

4 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Grok 4.20Thomson Reuters ONESOURCE Tax Provision alternatives: Bloomberg Tax Provision, CSC Corptax Accounting for Income Taxes, Exactera Tax Provision, Longview Tax
DeepSeek V4 FlashThomson Reuters ONESOURCE Tax Provision alternatives: Bloomberg Tax Provision, Longview Tax
GLM 4.7 FlashXAvalara, Thomson Reuters ONESOURCE Tax Provision alternatives: Bloomberg Tax Provision, Commenda, Longview Tax
Muse Glimmer 30BTaxfyle alternatives: Avalara, Bloomberg Tax Provision, Longview Tax by insightsoftware, Thomson Reuters ONESOURCE Tax Provision

Neither was named

3 of 14 modelsThe answer made no first choice from these two in this category.
GPT-5.4 miniWolters Kluwer CCH Tagetik Tax Provision alternatives: Longview Tax, Thomson Reuters ONESOURCE Tax Provision
Llama 4 MaverickTaxfyle alternatives: Avalara, Longview Tax, Thomson Reuters ONESOURCE Tax Provision
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
Bloomberg Tax Provision leads by twelve points.
Bloomberg Tax Provision12%#2 of 11
CSC Corptax Accounting for Income Taxes0%#11 of 11
The full small business standing →
Mid-marketThe figures above
Bloomberg Tax Provision leads by seventeen points.
Bloomberg Tax Provision19%#1 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
Bloomberg Tax Provision0%#6 of 10
The full enterprise standing →

What the models said about Bloomberg Tax Provision

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 These If Budget-Constrained - Bloomberg Tax Provision — very powerful, but pricing is quote-only and typically $30K–$150K/year.” DeepSeek V4 Flash · budget prompt · hard negative
“Avoid Enterprise Tools: ONESOURCE, Bloomberg, or Longview ... often not viable under $10k–$20k/year.” Grok 4.20 · budget prompt · hard negative
“some tax provision tools that should be avoided or used with caution include: 1. Bloomberg Tax Provision” Llama 4 Maverick · negative prompt · hard negative
“Highly regarded for mid-market and mid-tier companies; strong ASC 740 engine, clean user interface, and relatively fast implementation.” Gemini 3.5 Flash · scale prompt · first choice
“Start with Bloomberg Tax Provision if you're a true mid-market company focused on ASC 740 accuracy with minimal complexity.” Kimi K2 · direct prompt · first choice
“Bloomberg Tax is a tax management and automation software suite supporting corporate tax research, calculation, and compliance” Claude Haiku 4.5 · paraphrase 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.