Compound Interest Calculator São Paulo

Compound Interest Calculator for São Paulo

Savings accounts and deposits in São Paulo are priced off the Central Bank of Brazil policy rate, which stood at 13.75% at the end of September 2026. National consumer price inflation was 4.58% in September 2026, so a saver earning exactly the policy rate would have a real return of 8.77% a year before tax.

Facts that change the answer

• Central Bank of Brazil policy rate: 13.75% (September 2026, BIS series)
• Annual CPI inflation: 4.58% (September 2026)
• Real return at the policy rate: 8.77% per year (computed as (1 + 13.75%) / (1 + 4.58%) minus 1)
• Policy rate at each December: 2016 13.75%, 2017 7%, 2018 6.5%, 2019 4.5%, 2020 2%, 2021 9.25%, 2022 13.75%, 2023 11.75%, 2024 12.25%, 2025 15%
• Policy rate moves since January 2020 (month-end data): February 2020 4.5% to 4.25%; March 2020 4.25% to 3.75%; May 2020 3.75% to 3%; June 2020 3% to 2.25%; August 2020 2.25% to 2%; March 2021 2% to 2.75%; May 2021 2.75% to 3.5%; June 2021 3.5% to 4.25%; August 2021 4.25% to 5.25%; September 2021 5.25% to 6.25%; October 2021 6.25% to 7.75%; December 2021 7.75% to 9.25%; February 2022 9.25% to 10.75%; March 2022 10.75% to 11.75%; May 2022 11.75% to 12.75%; June 2022 12.75% to 13.25%; August 2022 13.25% to 13.75%; August 2023 13.75% to 13.25%; September 2023 13.25% to 12.75%; November 2023 12.75% to 12.25%; December 2023 12.25% to 11.75%; February 2024 11.75% to 11.25%; March 2024 11.25% to 10.75%; May 2024 10.75% to 10.5%; September 2024 10.5% to 10.75%; November 2024 10.75% to 11.25%; December 2024 11.25% to 12.25%; January 2025 12.25% to 13.25%; March 2025 13.25% to 14.25%; May 2025 14.25% to 14.75%; June 2025 14.75% to 15%; March 2026 15% to 14.75%; April 2026 14.75% to 14.5%; June 2026 14.5% to 14.25%; August 2026 14.25% to 14%; September 2026 14% to 13.75%
• In 9 of the last 10 years the December policy rate was above that year's average inflation

Worked example for São Paulo

Start with BRL 50,000, add BRL 500 a month and use 13.75% compounded monthly. After 10 years you would have BRL 323,819 from BRL 110,000 of deposits; after 20 years BRL 1,398,359 from BRL 170,000. These amounts in Brazilian real are only examples; real deposit rates offered by banks in São Paulo are usually below or above the policy rate depending on the term and the bank.

To see what that balance is worth in today's money, take inflation into account: at 4.58% a year, BRL 323,819 in ten years has the buying power of about BRL 207,003 now. Recent history for São Paulo's currency: 2020: 2% rate vs 3.2% inflation, 2021: 9.25% rate vs 8.3% inflation, 2022: 13.75% rate vs 9.3% inflation, 2023: 11.75% rate vs 4.6% inflation, 2024: 12.25% rate vs 4.4% inflation, 2025: 15% rate vs 5.0% inflation.

If you hold the money in a fixed deposit, the rate you lock in matters more than the compounding frequency. On BRL 50,000 over 10 years at 13.75%, switching from yearly to monthly compounding adds only BRL 14,878, while a rate 1 point higher adds BRL 20,382.

Sources: BIS central bank policy rates · BIS consumer price statistics. Checked 5 November 2026. For how the maths works, see the Compound Interest Calculator guide.