Free assessment
Find out if your records can handle Brazil's Tax Reform
The Tax Reform Readiness Test measures, in a few minutes, whether your company's material and product records are ready for the new fields that IBS and CBS require — reviewed NCM codes, cClassTrib and CST for every item. You answer objective questions and find out where the risk of a rejected invoice or lost tax credit is concentrated.
Why it is worth answering
What is at stake in your records
Invoices rejected for empty mandatory fields
cClassTrib and the new CST need to be filled in item by item. A generic description or an outdated NCM code stops invoicing right when it matters most.
IBS and CBS credit left on the table
A misclassified item means tax overpaid or credit not used, month after month — and both only show up during an audit or tax return.
Reclassifying under pressure costs more
The transition runs until 2033, but the timeline is deceptive: reclassifying a large database takes months, and whoever starts late competes with everyone else for the same specialists.Start the Tax Reform readiness test
Before you start
Questions from people who hesitate to fill out a form
A few minutes, in objective questions about your current tax records — much faster than pulling the same information into a spreadsheet.
No. A tax analyst, purchasing analyst or buyer who deals with tax classification and records day to day answers more precisely than someone who only sees the consolidated result later.
We ask for name, corporate email and phone only to send the full diagnosis, and we do not sell your contact to third parties. 4MDG is not a tax advisory firm — the test measures the state of your records, it does not replace guidance from your own tax team.
You might, if your result points to a risk worth discussing — but the diagnosis is yours either way. Authorizing WhatsApp contact is a separate, optional choice.
It takes less time than pulling the spreadsheet
Measure now whether your records are ready
The new fields are already being required in practice. Find out today where your records have items without a valid NCM or descriptions too vague to classify — before the window closes.