# CSC Corptax alternatives: what AI models name instead, September 2026

Finance AI Recommendation Index, September 2026 Edition. 181 of the 216 answers in the 1 category where CSC Corptax holds a standing named it neither first nor as an alternative; these are the first choices those answers made. Page: https://finance-ai-index.com/vendors/csc-corptax/alternatives/

## Named instead, most often (every category and segment added)

- Thomson Reuters ONESOURCE Tax Provision: 25
- Bloomberg Tax Provision: 17
- Thomson Reuters ONESOURCE: 10
- Avalara: 6
- Exactera Tax Provision: 6
- TurboTax Business: 4

## Corporate tax provision

**Small business**: 70 of 72 answers did not name CSC Corptax (CSC Corptax is #7 of 9 at 2%).

- Bloomberg Tax Provision: first choice in 11 of those 70
- TurboTax Business: first choice in 4 of those 70
- Avalara: first choice in 3 of those 70
- Drake Tax: first choice in 3 of those 70
- Drake Tax Provision: first choice in 3 of those 70
- Exactera: first choice in 3 of those 70
- Exactera Tax Provision: first choice in 3 of those 70
- QuickBooks Online: first choice in 3 of those 70

**Mid-market**: 61 of 72 answers did not name CSC Corptax (CSC Corptax is #9 of 9 at 0%).

- Thomson Reuters ONESOURCE Tax Provision: first choice in 11 of those 61
- Bloomberg Tax Provision: first choice in 5 of those 61
- Thomson Reuters ONESOURCE: first choice in 4 of those 61
- Avalara: first choice in 3 of those 61
- Exactera Tax Provision: first choice in 3 of those 61
- Longview Tax: first choice in 2 of those 61
- OneStream: first choice in 2 of those 61
- Aptean Alphatax: first choice in 1 of those 61

**Enterprise**: 50 of 72 answers did not name CSC Corptax (CSC Corptax is #3 of 9 at 5%).

- Thomson Reuters ONESOURCE Tax Provision: first choice in 14 of those 50
- Thomson Reuters ONESOURCE: first choice in 6 of those 50
- Sovos Tax Provision: first choice in 3 of those 50
- ADP SmartCompliance: first choice in 2 of those 50
- Bloomberg Tax Provision: first choice in 1 of those 50
- CCH Tagetik: first choice in 1 of those 50
- CCH Tagetik Tax Provision & Reporting: first choice in 1 of those 50
- Fonoa: first choice in 1 of those 50

Published under CC BY 4.0. The output is the models' output; nothing here is a recommendation by the index.