Your ERP wasn't built to calculate B2B e-commerce taxes.
Mastery was.
The fiscal layer that was born ready for Brazilian B2B e-commerce: validates the buyer, applies the correct rule on each order and delivers the correct tax in real time.
Your ERP wasn't built for B2B e-commerce.
Fiscal work that becomes a bottleneck
The ERP issues the invoice, but a person still decides if the B2B order can proceed. Manual CNPJ lookup, slow validation, overloaded fiscal team.
Higher price because the fiscal team plays it safe
To avoid tax loss risk, the team anchors the calculation to the highest possible rate.
Tax calculated below correct: loss, rework, and penalties
When the rule isn't applied correctly, tax comes out low. Rework and penalties result.
The fiscal engine your ERP was missing.
Queries the buyer, monitors NCMs and automates fiscal calculation in real time.
Every buyer is validated before the first calculation.
The system queries and enriches buyer data in real time: CNPJ, main CNAE, registration status, tax regime, state, Simples Nacional.
The company's fiscal DNA, mapped, monitored and continuously updated.
Dynamic fiscal classification with A.I.: NCM, CEST, ST, CFOP, incentives, injunctions.
Real-time fiscal calculation, feeding ERP and B2B e-commerce simultaneously.
High-performance engine: crosses buyer × product × destination and returns ICMS, ST, IPI, MVA, DIFAL, PIS/COFINS in real time.
Native preparation for IBS and CBS, with no surprises in the transition.
Mastery operates in dual regime: calculates current taxes and simulates IBS and CBS in parallel.
Every company has its rules, Mastery applies the most advantageous one automatically.
Configuration environment for each client's specific scenarios: state tax benefits, regional incentives, TTD, special regimes.
D2C · CNPJ
+500 D2C orders unlocked with CNPJ fiscal enrichment
Midea operated D2C but systematically canceled CNPJ orders. With Mastery, buyer validation now unlocks over 500 additional orders per month.
"Mastery allowed us to accept PJ orders on D2C without tax risk. What was once a problem became recurring revenue."
Your ERP and B2B e-commerce gain the fiscal brain that B2B digital was missing
ERPs
SAP, TOTVS, Oracle, Microsiga via API REST and real-time webhooks.
E-commerce
VTEX, Magento, WooCommerce with native integration or middleware.
Custom integrations
We develop specific integrations to meet your operation's unique needs.
Built for those who move Brazil
Manufacturers
Manufacturers and brands operating B2B e-commerce or D2C with multi-state tax complexity.
Distributors
Distributors operating in multiple states, channels and tax regimes.
Questions about Mastery?
How does Mastery integrate with our ERP?
Mastery offers API REST, webhooks and pre-built integrators for SAP, TOTVS and Oracle. Typical implementation: 2-4 weeks.
Do you calculate taxes or just look up data?
Mastery is a complete calculation engine. It calculates all taxes in real time with full traceability.
Is Mastery already ready for IBS/CBS?
Yes. Mastery runs dual regime: calculates current taxes AND IBS/CBS in parallel.
What is the implementation time?
For a basic integration: 2-4 weeks. Our implementation team guides the entire process.
Does Mastery work for D2C (direct to consumer)?
Yes. Our Registry D2C product validates and orchestrates CNPJ orders in D2C operations.
How does tax-rule automation work?
Mastery monitors daily changes in municipal, state and federal legislation.
What if my company has its own tax benefits?
The Rules & Tax Benefits module allows you to configure exceptions by company, product or state.
Does Mastery have data security and compliance?
Yes. Infrastructure runs on Google Cloud with encryption in transit and at rest. We follow LGPD best practices.
Technology that transforms lives
Partnership with Liga Digital
Mastery supports Liga Digital , a Brazilian nonprofit founded in 2020 that offers free technology courses to young people in situations of vulnerability. More than 8,000 young people trained e 75+ social institutions served. Digital education as a path to inclusion.
Ready to automate your fiscal operation?
Get in touch and speak with one of the partners. We'll respond within 24 business hours.