CDB 110% CDI ou LCI/LCA 93% DO CDI? Aprenda a calcular na prática qual rende mais!

Introduction

In this tutorial, we will explore how to calculate which investment yields more: a CDB (Certificado de Depósito Bancário) at 110% of CDI or an LCI/LCA (Letra de Crédito Imobiliário/Agronegócio) at 93% of CDI. Understanding these calculations is essential for making informed investment decisions, especially considering the tax implications of each option.

Step 1: Understand the Basics of CDI

• What is CDI?

  • CDI stands for Certificado de Depósito Interbancário, which serves as a benchmark for various financial products in Brazil.

• Why is it important?

  • The CDI rate is used to compare the profitability of different investments, as many fixed-income products are tied to it.

Step 2: Gather Investment Details

• For CDB:

  • Rate: 110% of CDI
  • Tax: Subject to Income Tax

• For LCI/LCA:

  • Rate: 93% of CDI
  • Tax: Exempt from Income Tax

Step 3: Calculate the CDI Rate

• Find the current CDI rate.
  • Check a financial news website or your bank for the latest CDI rate. For example, let’s assume the CDI is 13.65% per year.

Step 4: Calculate Gross Returns

1. CDB Calculation:

   • Formula:
     • Gross Return (CDB) = CDI Rate * CDB Percentage
   • Example:
     • Gross Return (CDB) = 13.65% * 1.10 = 15.015%

2. LCI/LCA Calculation:

   • Formula:
     • Gross Return (LCI/LCA) = CDI Rate * LCI/LCA Percentage
   • Example:
     • Gross Return (LCI/LCA) = 13.65% * 0.93 = 12.7005%

Step 5: Calculate Net Returns After Tax

• CDB:

  • Apply the income tax rate (which varies based on investment duration).
  • Example Tax Rates:
    • 22.5% for investments held for less than 180 days
    • 20% for investments held for 181 to 360 days
    • 17.5% for investments held for 361 to 720 days
    • 15% for investments held for over 720 days

• Calculation Example:

  • If you hold the CDB for 2 years (15% tax):
  • Net Return (CDB) = Gross Return (CDB) * (1 - Tax Rate)
  • Net Return (CDB) = 15.015% * (1 - 0.15) = 12.76275%

• LCI/LCA:

  • Since LCI/LCA is tax-exempt, the net return is the same as the gross return.
  • Net Return (LCI/LCA) = Gross Return (LCI/LCA) = 12.7005%

Step 6: Compare the Results

• Final Comparison:

  • CDB Net Return: 12.76275%
  • LCI/LCA Net Return: 12.7005%

• Conclusion on Investment Choice:

  • In this example, the CDB yields a higher return after tax compared to the LCI/LCA.

Conclusion

By following these steps, you can accurately assess which investment option is more profitable based on current market rates and tax implications. Always remember to check the latest CDI rates and consider your investment duration for accurate tax calculations. Evaluating these factors will help you make educated financial decisions tailored to your investment strategy.