Fonoa

Fonoa automates the full indirect tax lifecycle: validating tax IDs in 120-plus countries, determining VAT, GST and sales tax in over 100 jurisdictions in under 200 milliseconds, issuing e-invoices through a unified API connected to accredited government portals, and filing multi-country returns with full data lineage. The company layers an AI compliance engine on top that executes workflows while humans approve.

Fonoa raised $110 million in funding and used part of that capital to acquire PwC's Indirect Tax Edge, according to the firm's own website. The transaction added PwC's indirect tax capabilities to Fonoa's existing platform, broadening its global tax intelligence coverage. No external publication independently confirmed the deal terms.

Fonoa does not publicly name its customer logos. The firm states that every customer who started 2025 with them renewed, citing G2 reviewer feedback on response times and end-to-end collaboration. It positions itself as a core piece of indirect tax infrastructure for digital economy businesses.

The platform covers VAT, GST and sales tax across more than 100 jurisdictions. It validates tax IDs in over 120 countries, monitors 480 pieces of tax legislation and tracks hundreds of tax regimes through a living global tax intelligence layer that provides cited answers to complex questions.

Fonoa sells an API-first software platform that digital businesses integrate directly into their transaction stacks. Tax determination runs with sub-200ms latency, and the e-invoicing module uses one standard data model across mandates. An AI agent layer handles compliance execution, but the firm emphasizes that humans supervise and approve every action.