# Corporate tax provision for small business buyers: what AI models recommend, November 2026

Gane Index, November 2026 Edition. Asked as "corporate tax provision software" and as "income tax compliance software", six framings each, to fourteen models with search on, on behalf of a small B2B company. Page: https://www.gane.ai/index/finance/tax/corporate-tax-provision/2026-11/smb

**Standing:** TaxAct Business leads with 29% of first choices; verdict contested. 48 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [TaxAct Business](https://www.gane.ai/index/finance/vendors/taxact-business/index.md) | 29% | 11% | 37 |
| 2 | [Bloomberg Tax Provision](https://www.gane.ai/index/finance/vendors/bloomberg-tax-provision/index.md) | 12% | 29% | 38 |
| 3 | [TurboTax Business](https://www.gane.ai/index/finance/vendors/turbotax-business/index.md) | 10% | 16% | 31 |
| 4 | [Avalara](https://www.gane.ai/index/finance/vendors/avalara/index.md) | 8% | 13% | 23 |
| 5 | [Longview Tax](https://www.gane.ai/index/finance/vendors/longview-tax/index.md) | 6% | 46% | 28 |
| 8 | [QuickBooks Online](https://www.gane.ai/index/finance/vendors/quickbooks-online/index.md) | 2% | 8% | 12 |
| 10 | [Exactera Tax Provision](https://www.gane.ai/index/finance/vendors/exactera-tax-provision/index.md) | 2% | 27% | 11 |
| 11 | [FreeTaxUSA](https://www.gane.ai/index/finance/vendors/freetaxusa/index.md) | 2% | 25% | 12 |
| 20 | [Xero](https://www.gane.ai/index/finance/vendors/xero/index.md) | 0% | 0% | 11 |
| 110 | [Thomson Reuters ONESOURCE Tax Provision](https://www.gane.ai/index/finance/vendors/thomson-reuters-onesource-tax-provision/index.md) | 0% | 59% | 41 |
| 111 | [CSC Corptax Accounting for Income Taxes](https://www.gane.ai/index/finance/vendors/csc-corptax-accounting-for-income-taxes/index.md) | 0% | 81% | 16 |

Rank is by share of first choices among all 111 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: H&R Block Premium & Business, TurboTax Business; alternatives TaxAct Business
- GPT-5.4 mini: Bloomberg Tax Provision; alternatives Thomson Reuters ONESOURCE Tax Provision
- Gemini 3.5 Flash: Bloomberg Tax Provision; alternatives CCH Axcess Tax, Intuit ProConnect Tax, Tax Series (Provision Module) by Tax Technologies, Inc.
- Perplexity Sonar: Longview Tax; alternatives Bloomberg Tax Provision
- Grok 4.20: TaxAct Business; alternatives Exactera Tax Provision, TurboTax Business
- Mistral Small: TaxAct Business; alternatives Avalara, Taxfyle
- DeepSeek V4 Flash: TaxAct Business; alternatives Avalara, Bloomberg Tax Provision, TurboTax Business
- Llama 4 Maverick: TaxAct Business; alternatives Avalara, Bloomberg Tax Provision, TaxSlayer, Taxprep
- Qwen 3.7 Flash: Tribridge; alternatives Baker Tilly, GlueTrust, Grant Thornton, Wipfli
- Kimi K2: TaxAct Business; alternatives Bloomberg Tax Provision, Longview Tax, TaxDome, TurboTax Business
- GLM 4.7 FlashX: Longview Tax; alternatives Avalara, TaxAct Business
- MiniMax M2.5: Taxfyle; alternatives Avalara, Longview Tax, Taxprep, TurboTax Business
- GPT-6 Luna: Bloomberg Tax Provision; alternatives Thomson Reuters ONESOURCE Tax Provision
- Muse Glimmer 30B: TaxAct Business; alternatives Longview Tax, Taxprep

## Sources the answers cite

75 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- capterra.com: 33 answers, 51 citations
- tax.thomsonreuters.com: 28 answers, 35 citations
- pro.bloombergtax.com: 26 answers, 54 citations
- softwareadvice.com: 26 answers, 38 citations
- getapp.com: 24 answers, 35 citations
- quicken.com: 23 answers, 23 citations
- gane.ai/index: 22 answers, 25 citations
- fitsmallbusiness.com: 16 answers, 16 citations

Pages named in the most answers:

- https://gane.ai/index/finance/tax/corporate-tax-provision/smb (21 answers)
- https://pro.bloombergtax.com/insights/tax-solutions/buyers-guide-how-to-find-the-right-tax-provision-software (20 answers)
- https://quicken.com/blog/best-tax-preparation-and-compliance-tools-for-small-businesses-in-2026 (18 answers)
- https://fitsmallbusiness.com/best-business-tax-software (16 answers)
- https://forbes.com/advisor/taxes/best-tax-software-small-business (15 answers)
- https://getapp.com/finance-accounting-software/corporate-tax (15 answers)
- https://softwareadvice.com/corporate-tax/small-business (14 answers)
- https://axiobench.com/best/corporate-tax-provision-software (13 answers)
- https://softwareadvice.com/corporate-tax (12 answers)
- https://capterra.com/corporate-tax-software (11 answers)

## Warned against

- Thomson Reuters ONESOURCE Tax Provision: 24 of 41 labels negative. "Avoid Thomson Reuters ONESOURCE if... For tax return preparation (use UltraTax), small businesses, or if you don't have international tax complexity." (Muse Glimmer 30B, negative prompt)
- Longview Tax: 13 of 28 labels negative. "Don’t Buy Enterprise Provision Software: Tools like Longview Tax, Onesource, or Trullion cost $10,000+/year." (Qwen 3.7 Flash, budget prompt)
- CSC Corptax Accounting for Income Taxes: 13 of 16 labels negative. "Small businesses should generally avoid Enterprise-Level Tax Provision Software, e.g., Corptax (CSC)" (MiniMax M2.5, negative prompt)
- Bloomberg Tax Provision: 11 of 38 labels negative. "Bloomberg Tax Provision and Thomson Reuters ONESOURCE should be avoided unless the business has a large staff and a budget exceeding $25k–$50k/year" (Muse Glimmer 30B, negative prompt)

## Movement since October 2026

Floor: 10 points of share, measured on the calibration repeat.
Same leader: TaxAct Business at 29%.

- Longview Tax: 0% to 6%, +6. Inside the floor by 4 points · rank 107 → 5 of 111.
- Avalara: 4% to 8%, +4. Inside the floor by 6 points · rank 7 → 4 of 111.
- QuickBooks Online: 6% to 2%, −4. Inside the floor by 6 points · rank 4 → 8 of 111.
- TaxSlayer: 4% to 0%, −4. Inside the floor by 6 points · rank 5 → 25 of 111.
- Bloomberg Tax Provision: 15% to 12%, −3. Inside the floor by 7 points · rank 2 of 111, unchanged.
- TurboTax Business: 13% to 10%, −3. Inside the floor by 7 points · rank 3 of 111, unchanged.
- FreeTaxUSA: 0% to 2%, +2. Inside the floor by 8 points · rank 24 → 11 of 111.
- Xero: 2% to 0%, −2. Inside the floor by 8 points · rank 10 → 20 of 111.
- Thomson Reuters ONESOURCE Tax Provision: 2% to 0%, −2. Inside the floor by 8 points · rank 20 → 110 of 111.
- TaxAct Business: 28% to 29%, +1. Inside the floor by 9 points · rank 1 of 111, unchanged.
- Exactera Tax Provision: 2% to 2%, ±0. Inside the floor by 10 points · rank 9 → 10 of 111.
- Sovos Tax Provision: 0% to 0%, ±0. Inside the floor by 10 points · rank 22 → 31 of 111.

## Record

- Method: https://www.gane.ai/index/finance/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/finance.