Audit ready in minutes, not weeks
Audit keeps every transaction detail on record, fully reasoned, and queryable in seconds. Get audit ready in minutes and walk into any review with complete confidence.
Capabilities
Trace every transaction, every decision, every anomaly. Instantly.
Cut time on audit prep
One command assembles every determination, override, and approval trail for any jurisdiction and period. No manual work required.
Trace back every decision
Prove exactly which rule was active when a decision was made. Immutable, versioned, and queryable.
Query your tax data instantly
Plain language queries return instant answers from your entire transaction history. No data analyst, no lead time, no waiting around.
Real-time alerts on anomalies
Proactive dashboard alerts fire when Audit flags unusual rate applications, jurisdiction mismatches, or classification outliers.
Built for SOX, SOC 2, and enterprise governance
Native segregation of duties, logged approval processes, and phased overrides keep your team compliant.
AI confidence score
Audit monitors model accuracy and flags uncertainty rather than guessing. Every determination records how confident the AI was when it made the decision.
How teams use Agents
Use case
What Fonoa solves
Tax authority enquiries
Assembles every determination, override, and approval trail before anyone asks. Ready to share in minutes.
Closing the period with confidence
Flags incomplete determinations, missing certificates, and unresolved variances before the deadline hits.
Keeping finance and internal audit satisfied
Meets SOX and internal audit requirements for public companies and IPO-stage businesses without a single manual data pull.
The onboarding with Fonoa has been exceptional. There was no delay on their end and our tax engine was up and running within two months. It’s hands down the best onboarding experience we’ve had with any tax finance provider.
.avif)
Fonoa lets us sleep at night. We don’t have to worry about compliance while we scale.
Everyone we work with at Fonoa is nothing short of amazing. The responsiveness, the willingness to help, the speed at which we can get on a call and solve problems—it’s unlike anything we’ve experienced with other vendors. They actually listen, they care, and they deliver.
Client testimonial
Don’t just take our word for it.
Why companies around the world prefer Fonoa.
Fonoa is a core piece of indirect tax infrastructure." —One Jae Paik, Tax Director at Intercom
Client testimonial
Don’t just take our word for it.
Why companies around the world prefer Fonoa.
You have to understand your company's needs. There is no “one size fits all" approach when it comes to e-invoicing." — Alexandra Dubois
Client testimonial
Don’t just take our word for it.
Why companies around the world prefer Fonoa.
When we talk about scaling, we want to automatically trigger an API to see if the tax ID is valid or not. Fonoa’s API was a huge differentiator." — Renan Bastazini
Client testimonial
Don’t just take our word for it.
Why companies around the world prefer Fonoa.
With Fonoa, I don't have to constantly think about invoicing while we grow. That's the best thing that could happen–fully trusting our invoice provider. — Tobias Laber
Client testimonial
Don’t just take our word for it.
Why companies around the world prefer Fonoa.
Fonoa’s solutions aren’t just saving us time, they’re helping us stay ahead of regulatory change, globally." –Kirsten Best, Head of VAT at Remote
Rated by the people who rely on us
Built on trust. Measured in results.
Customer retention
Every customer who started 2025 with us renewed.
Ease of doing business
G2 reviewers highlighted end-to-end collaboration and availability.
Quality of support
G2 reviewers highlighted response times and expertise.
Gartner Peer Insights rating
Independent reviews from verified enterprise users.
