Fonoa

Spec sheet

What it does

Fonoa describes itself as an AI platform for global indirect tax, connecting tax ID validation, tax calculation, e-invoicing, and tax returns.Read 12 Oct 2026 · fonoa.com

Integrations

Fonoa’s products share a platform data model; its E-Invoicing page says invoice data can flow into return preparation when Returns is connected.Read 11 Oct 2026 · fonoa.com

Security

Fonoa says it hashes user credentials, encrypts transactional data using protocols such as TLS, and conducts security assessments and penetration testing.Read 12 Oct 2026 · fonoa.com

Compliance

Fonoa states that it is GDPR compliant and uses independent third-party security firms for regular penetration tests, with reports available under NDA.Read 12 Oct 2026 · fonoa.com

Support

Fonoa’s API documentation says customers obtain an API subscription key after onboarding by contacting its technical support team.Read 11 Oct 2026 · docs.fonoa.com

Headquarters

Dublin, IrelandRead 28 Sep 2026 · fonoa.com

API access

Fonoa says API keys can be obtained by contacting it directly, and its e-invoicing quickstart requires an account and product configuration by a Fonoa solutions engineer.Read 12 Oct 2026 · docs.fonoa.com

API integration

Fonoa's API documentation describes a REST API for tax automation products including tax ID validation, tax calculation, invoice generation, and real-time transaction reporting.Read 12 Oct 2026 · docs.fonoa.com

Audit

Fonoa Audit records transaction decisions and approvals, supports queries across transaction history, and alerts on anomalies.Read 11 Oct 2026 · fonoa.com

Company scale

Fonoa's about page states that its tax engine covers 190+ jurisdictions, its tax ID validation covers 100+ countries, and it processes 500 million transactions annually.Read 12 Oct 2026 · fonoa.com

E-invoicing

Fonoa's e-invoicing API can issue electronic invoices and fiscally relevant documents, report transactions to tax authorities in real time, and generate human-readable documents such as invoices, credit notes, and receipts.Read 12 Oct 2026 · docs.fonoa.com

Filing support level

automatedRead 20 Sep 2026 · fonoa.com

Intended customers

Fonoa describes its platform as serving digital businesses that need to manage indirect tax across markets; its about page says its founders saw the challenge while working at Uber.Read 11 Oct 2026 · fonoa.com

Notable limit

Fonoa says its current API authentication requires a subscription key on every request, and the key is obtained after onboarding.Read 11 Oct 2026 · docs.fonoa.com

Pricing availability

The product pages invite visitors to book a demo; they do not state a price on those pages.Read 11 Oct 2026 · fonoa.com

Regulatory knowledge

Fonoa Knowledge provides cited answers about indirect tax rules and personalized regulatory alerts connected to the customer’s business profile.Read 11 Oct 2026 · fonoa.com

Return filing

YesRead 20 Sep 2026 · fonoa.com

Returns and reporting

Fonoa’s API product suite includes invoice generation and real-time transaction reporting to tax authorities where required.Read 11 Oct 2026 · docs.fonoa.com

Sales tax calculation

YesRead 20 Sep 2026 · fonoa.com

Sandbox limits

The API sandbox has unlimited usage but serves hardcoded data rather than live integrations with tax authorities; the demo environment has limited usage.Read 12 Oct 2026 · docs.fonoa.com

Security testing

Fonoa says it engages independent third-party security firms for regular penetration tests and can share reports under NDA.Read 11 Oct 2026 · fonoa.com

Supported tax types

VAT,GST,Sales TaxRead 20 Sep 2026 · fonoa.com

Tax calculation

Its tax engine calculates VAT, GST, and sales tax across 100+ jurisdictions, with sub-200ms processing stated on the homepage.Read 12 Oct 2026 · fonoa.com

Tax ID validation

Fonoa says its validation product checks tax IDs in real time across 120+ countries and supports search by name and fuzzy matching.Read 12 Oct 2026 · fonoa.com

Tax intelligence

Fonoa Knowledge is described as a tax legislation intelligence layer that provides answers with cited sources.Read 12 Oct 2026 · fonoa.com

Tax returns

The homepage describes multi-country automated return filing with lineage from each return box to its source transaction.Read 12 Oct 2026 · fonoa.com

Webhook support

The API supports webhook notifications for transaction results, and Fonoa recommends webhooks over polling.Read 12 Oct 2026 · docs.fonoa.com

Who it is for

Fonoa says its founders developed the platform after seeing tax automation challenges while working at Uber, and its API documentation describes its products as serving internet companies.Read 12 Oct 2026 · fonoa.com

Where Specifiction places it

• e-Invoicing Software#8 of 227.3
• Tax Compliance Software#70 of 1057.3