The accountant fills in the company's data once and sees the tax-reform impact across the four regimes, year by year, from 2026 to 2033. What was a giant spreadsheet run by hand per client is now a product that reproduces the same math, validated to the cent.
The regime comparison in Calculadora RTE: each regime, year by year from 2026 to 2033. Green is the most advantageous, the border marks the current regime.
Accounting firms compute the tax-reform impact in a giant workbook: a huge spreadsheet, with dozens of tabs, run by hand per client. It works, but it doesn't scale: each analysis takes hours, and a wrong formula in one tab contaminates the eight-year projection. RT360 takes that spreadsheet and turns it into a product.
Computing the reform in the workbook got the job done, but each analysis was manual, fragile and stuck in a file nobody could deliver as a service.
Each client meant running the workbook cell by cell, with no automation.
Seeing the effect across regimes at once meant opening several tabs and redoing the math.
A wrong formula in one tab spread across the eight-year projection unnoticed.
The analysis lived in a file, with no way to become a service you could present to the end client.
New taxes layered on, credits, thresholds and the transition changing the rates every year.
Starting a new analysis meant copying the whole spreadsheet and reconfiguring from scratch.
The accountant fills it once and gets the full comparison across regimes, year by year, with the same math as the firm's spreadsheet.
The official spreadsheet was reproduced in software, with the five taxes and the year-by-year transition. It's the same math as the spreadsheet, with no need to run it cell by cell by hand.
The accountant onboards once and sees the four regimes side by side, with the computation faithful to the spreadsheet, projected P&L, a break-even price simulator, working capital and an automatic diagnosis.
Instead of retyping, the accountant uploads their own Excel file and the system builds the analysis already filled in, ready for review.
The answer has to match the law and the firm's spreadsheet, exactly. That's why the engine is deterministic and validated against the accountant's real spreadsheets, case by case. Every error they flagged became a guardrail so it never comes back.
What was an Excel run by hand per client became an app where the accountant fills it once and gets the comparison across the four regimes over eight years. The partner accountant validated the system against their own spreadsheets: in every case they flagged, the math matched the official spreadsheet to the cent.
Status: pre-launch · validated to the cent in staging, production live, soft launch in preparation