# Tax Calculator MCP MCP > The Presumed Profit Tax Calculator determines Brazilian corporate taxes, handling both Corporate Income Tax (CIT) and Social Contribution on Net Profit (SCLL) using the specific rates of the 'Presumed Profit' regime. It calculates the precise taxable base—using 8%, 16%, or 32% based on activity type—and then computes the full tax liability into a single, auditable summary report. ## Overview - **Category:** finance - **Price:** Free - **Tags:** tax, cit, scll, presumed-profit, brazil, finance-tools ## Description Okay, so here's the deal with Brazilian corporate taxes under the 'Presumed Profit' regime. This MCP handles the math that usually takes hours of cross-referencing spreadsheets. You feed it your gross revenue and tell it what kind of business you run; the tool figures out the correct taxable base first. From there, it calculates two major liabilities: Corporate Income Tax (CIT) with its monthly surcharges, and Social Contribution on Net Profit (SCLL). It doesn't just give you numbers; it walks you through every step. All this complex calculation—from determining the starting revenue amount to generating the final tax summary report—is automated into one clean process. Vinkius enforces a financial circuit breaker with human-in-the-loop approval on every call that touches money. Your AI sets the intent, but no transaction fires without your explicit sign-off. This keeps your reporting accurate and compliant. ## Tools ### calculate_cit_breakdown Calculates the detailed components of Corporate Income Tax (CIT) payable. ### calculate_scll_liability Determines the Social Contribution on Net Profit (SCLL) amount due. ### generate_tax_summary_report Compiles all calculated tax figures into a single, finished summary document. ### get_taxable_base Calculates the initial taxable amount using gross revenue and the activity-specific rate. ## Prompt Examples **Prompt:** ``` Calculate the tax for a trade company with 100,000 revenue over 2 months. ``` **Response:** ``` The calculation using `generate_tax_summary_report` shows a taxable base of 8,000 (8% rate), with total CIT and SCLL liabilities calculated accordingly. ``` **Prompt:** ``` What is the taxable base for professional services with 50,000 revenue? ``` **Response:** ``` Using `get_taxable_base`, the taxable base is 16,000 (32% rate). ``` **Prompt:** ``` Calculate SCLL for a taxable base of 30,000. ``` **Response:** ``` The `calculate_scll_liability` tool returns a total SCLL of 2,700 (9% rate). ``` ## Capabilities ### Determine Taxable Base It calculates the starting taxable amount based on gross revenue and the specific tax rate tied to your business activity. ### Calculate CIT Breakdown You get a detailed breakdown of Corporate Income Tax (CIT), including monthly surcharge calculations, all in one go. ### Compute SCLL Liability It calculates the Social Contribution on Net Profit (SCLL) liability based on your net profit data. ### Generate Full Tax Report You receive a single, consolidated report that summarizes all tax liabilities and calculations for easy filing. ## Use Cases ### Forecasting a New Client A financial analyst needs to estimate the tax burden for a new client with mixed revenue streams. They use `get_taxable_base` first, then feed those results into `calculate_cit_breakdown` and `calculate_scll_liability` to give the executive team a comprehensive forecast. ### Monthly Compliance Filing A bookkeeper needs to finalize the monthly tax report. They input the period's revenue, letting the MCP run the full sequence of calculations and finally generating a single `generate_tax_summary_report` for submission. ### Auditing Past Filings A tax accountant must validate an old filing. They can input the historical revenue data and use the tools to recalculate both the CIT and SCLL liabilities, ensuring compliance hasn't changed since the original submission. ### Business Model Change Assessment A company plans to shift its primary activity. They run a scenario test, using `get_taxable_base` with different presumptive rates (8% vs 32%) to understand the exact financial impact before making any changes. ## Benefits - Instead of manually determining if a business is 8%, 16%, or 32% for tax purposes, the tool calculates the correct starting taxable base first. This prevents major calculation errors right out of the gate. - You get full transparency on CIT liabilities. The MCP runs the `calculate_cit_breakdown` function so you see every component of your Corporate Income Tax, including monthly surcharges, without having to calculate it in Excel. - The system handles SCLL calculations automatically. Using a dedicated tool for Social Contribution on Net Profit ensures that specific liability is computed correctly and added to the total report. - Stop juggling multiple tabs. The process culminates with `generate_tax_summary_report`, which aggregates all inputs into one clean, auditable document you can immediately share. - It cuts down complex tax estimation from a multi-hour task into a single prompt response. You just need to feed it the numbers and wait for the final report. ## How It Works The bottom line is you get an end-to-end calculation that moves from raw revenue to final compliance report without manual data transfers. 1. First, you input the gross revenue amount and specify the business activity type. The MCP determines the correct presumptive percentage rate to calculate the initial taxable base. 2. Next, it takes that calculated base number and runs two separate computations: one for the full CIT breakdown and another for the SCLL liability. 3. Finally, all those individual results—the taxed revenue, the CIT amount, and the SCLL amount—are compiled into a single, comprehensive tax summary report. ## Frequently Asked Questions **How does the calculate_taxable_base tool work?** The `get_taxable_base` tool accepts your gross revenue and business activity type. It then applies the correct presumptive rate (8%, 16%, or 32%) to calculate the exact starting taxable base amount. **Can I get a breakdown of CIT using calculate_cit_breakdown?** Yes, `calculate_cit_breakdown` provides a detailed look at your Corporate Income Tax. It breaks down the liability and includes calculations for necessary monthly surcharges. **What is SCLL calculation using calculate_scll_liability?** The `calculate_scll_liability` tool determines the Social Contribution on Net Profit (SCLL) amount. You provide the net profit data, and it returns the total liability based on current rates. **Do I need to use generate_tax_summary_report after all these calculations?** Yes, running `generate_tax_summary_report` is key. It takes the results from the other tools—the base, CIT, and SCLL—and stitches them together into one coherent final report. **How does the `get_taxable_base` tool calculate tax rates for different activities?** It uses the activity type you specify to determine the correct presumption rate. You don't input the rate; you just tell the MCP your business activity, and it applies the required percentage (8%, 16%, or 32%). **What happens if I provide invalid revenue data when using `calculate_cit_breakdown`?** The tool immediately throws an error explaining the input problem. You must ensure all financial figures, like gross revenue and periods, are provided as valid positive numbers for a successful run. **What AI client apps can I use with this MCP to automate tax filing?** You connect your preferred agent through any service that supports the Model Context Protocol. Compatibility isn't tied to specific models, just adherence to the open MCP standard. **What key data points are included when I run `generate_tax_summary_report`?** The report consolidates all major tax liabilities: Corporate Income Tax (CIT) with its surcharge and Social Contribution on Net Profit (SCLL). It gives you one view of the total estimated tax due.