Calculadora de Empréstimo Empresarial
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
PMT = P·r·(1+r)ⁿ / ((1+r)ⁿ − 1)
About this calculator
The Business Loan Calculator is a practical tool for simulating financing for working capital or business expansion. It calculates the fixed monthly installment based on the desired amount, monthly interest rate, and repayment term. The result uses the PMT formula, which considers present value, compound interest, and number of installments. This simulation helps entrepreneurs plan cash flow and compare different credit scenarios before taking out a loan.
How it works: the formula PMT = P * r * (1+r)^n / ((1+r)^n - 1) is applied, where P is the loan amount, r is the monthly interest rate (in decimal), and n is the number of months. The calculator processes these inputs and displays the monthly payment, total amount paid, and total interest. It is useful for assessing the real cost of credit and avoiding financial surprises. Remember that interest rates may vary according to the company's profile and market conditions.
When to use: ideal for micro, small, and medium business owners seeking funds for inventory, machinery, renovations, or working capital. It also helps compare offers from different financial institutions, understanding the impact of interest rates and term on the final amount. Use it before requesting a loan to make safer decisions aligned with the business's repayment capacity.
Cautions: the simulation does not include additional fees such as IOF, registration fees, or insurance, which can increase the credit cost. The interest rate entered should be the effective monthly rate, not the nominal annual rate. Also consider the Total Effective Cost (CET) for accurate comparisons. Companies with a negative credit history may face higher rates. It is recommended to consult an accountant or financial analyst to validate the planning.
Frequently asked questions
What is the difference between nominal and effective interest rate?
The nominal rate is annual without monthly compounding; the effective rate includes compound interest. Always use the effective monthly rate in the calculator.
Can I use this calculator for a personal loan?
Yes, the formula is the same, but interest rates and conditions may differ. The calculator is generic for any fixed-installment loan.
What is IOF and how does it affect the calculation?
IOF is a Brazilian tax on financial operations, charged on the loan amount. It is not included in the simulation; check with your bank for the total cost.
How do I know if the installment fits my cash flow?
Calculate the installment and compare it to the net monthly revenue. Ideally, the commitment should not exceed 30% of revenue to maintain financial health.
Can the interest rate change during the contract?
It depends on the type: fixed-rate loans keep the value; variable-rate loans may adjust. Check the contract before signing.