The Platform

Everything you need to stay compliant — in five modules.

TaxStreem is built as a modular platform on a single intelligent core. Adopt the whole platform or just the pieces you need. Each module is powerful alone and seamless together.

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01 — The modules

Numens

Intelligence Engine

The brain of TaxStreem. Reads and understands financial data, applies tax logic, and powers computation across every other module.

Prism

AP/AR + E-invoicing

Automated, AI-powered accounts payable and receivable with compliant e-invoicing built in.

Atlas

Bookkeeping & Accounting

AI-powered books: automatic categorisation, reconciliation and real-time financial statements.

Flux

Automated Tax Filing

Agentic filing engine that files your taxes accurately and on time — even without government APIs.

Martina

AI Tax Assistant

Conversational AI that answers tax questions and delivers insights tailored to your business.

One core.
Five modules.

Everything shares the Numens intelligence engine. Start with one, add the rest as you grow.

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02 — A closed loop
How they work together

Data in. Compliance out. No manual gaps.

Atlas keeps your books clean. Prism handles every invoice and keeps you e-invoicing compliant. Numens reads it all and computes your tax in real time. Flux files it. Martina explains it.

AtlasClean books
PrismEvery invoice
NumensComputes tax
FluxFiles it
MartinaExplains everything · across all modules
Built to be embedded

Every module is also an API.

Platforms can embed any capability — computation, e-invoicing, bookkeeping or filing — directly into their own products. No need to build any of it from scratch.

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POST /v1/computeNumens
POST /v1/invoicesPrism
GET  /v1/ledgerAtlas
POST /v1/filingsFlux
POST /v1/askMartina

One platform. Every obligation.

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