AI assistants most often recommend ContaAzul for tax software in 🇧🇷 Brazil (Português), naming it in 100% of the buyer questions we tested, followed by Sage and NFe.io. We asked an AI model the questions buyers ask about tax software and tallied which brands it named most — "share of voice" in AI answers, who AI recommends when no human is watching.
| # | Brand | AI share of voice |
|---|---|---|
| 1 | ContaAzul | 6/6 (100%) |
| 2 | Sage | 6/6 (100%) |
| 3 | NFe.io | 3/6 (50%) |
| 4 | QuickBooks | 3/6 (50%) |
| 5 | Nubank Conta | 2/6 (33%) |
| 6 | SPED | 1/6 (17%) |
| 7 | Speedio | 1/6 (17%) |
| 8 | Omnie | 1/6 (17%) |
Method: 6 representative buyer questions via a large language model, 🇧🇷 Brazil (Português). Updated 7/5/2026. A proxy for how AI assistants describe this category.
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