Fonoa AI features and pricing (October 2026)

Fonoa is an indirect tax platform for companies selling across many countries, especially digital businesses. It validates tax IDs, calculates tax, issues e-invoices and files returns, and adds AI that tracks law changes and answers tax questions with cited sources.

Fonoa describes itself as tax infrastructure covering the full indirect tax lifecycle on one platform. Its core products are Validate for tax ID checks, a Tax Engine for calculation, E-Invoicing and Returns for filing, and two newer AI products, Knowledge and Audit. The company's registered office is in Dublin, and its website features customer stories from companies such as Coda, Wellhub and Remote. Fonoa targets digital economy businesses and enterprises with obligations in more than 150 countries.

• Monitors indirect tax law changesFonoa Knowledge sends personalized alerts about changes in indirect tax law and ranks them by materiality based on what it knows about the company's structure, transaction types and markets. Tax teams see the changes that matter to them first instead of reading every bulletin.
• Answers tax questions with citationsKnowledge answers indirect tax questions in plain language and cites primary legislation in every response so the answer can be checked. This gives in-house tax staff a quick, verifiable first answer before they involve local advisers.
• Pushes rule changes into calculationBecause Knowledge is connected to the Fonoa Tax Platform, rule changes it identifies can be deployed to the company's systems. Teams reduce the gap between learning about a new rate or rule and having it applied in live transactions.
• Documents every tax determinationFonoa Audit keeps a record of every tax determination, override and approval, shows which rule applied at the time and adds an AI confidence score that flags uncertainty. Tax teams can assemble the audit trail for a jurisdiction and period when auditors or authorities ask.

• Combines tax ID validation, tax calculation, e-invoicing and returns with AI research on one platform for more than 150 countries.
• Ranks law change alerts by materiality for the specific company rather than sending the same bulletin to every customer.
• AI agents for automating tax workflows were listed as coming soon when we checked in September 2026 and are not part of the current offer.

Fonoa is headquartered in Dublin and offers tax ID validation, tax calculation, e-invoicing and returns for more than 150 countries without naming a focus market.

Fonoa sets prices after a demo, so compare quotes per product and country. Ask which e-invoicing formats and clearance models are covered for your markets and how invoices are archived. The security page offers third-party penetration test reports under NDA. Request the data processing agreement, the subprocessor list and SSO options, and ask where platform data is stored, since the public pages did not state this in September 2026.

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