How we calculate
CDB is taxed on a regressive scale (22.5% to 15%). LCI, LCA and savings are tax-exempt for individuals in Brazil.
Formula used
Each option projects gross value via compound interest; CDB has regressive tax deducted from the return.
Compara o valor líquido final de CDB (tributado), LCI/LCA e poupança (isentas de IR)
Practical example
A 100% CDI CDB may net less than a 90% CDI LCI over the same term, because LCI pays no income tax.
How to interpret the result
Compare the final net amount of each option — it already accounts for taxation (or exemption).
Limitations
CDI rate and the savings rule use reference values that may be outdated.