• Starting principal: $75 x 12 = $900 per year
  • Total contributions over 30 years: $900 x 30 = $27,000
  • Total interest earned at 7% per year: $27,000 x 7% = $1,890
  • Future value of investment: $27,000 + $1,890 = $28,890

So, after 30 years, your $75 monthly investment in the S&P 500 could potentially grow to around $28,890, assuming an annual rate of return of 7%. However, it's important to note that this is just an estimate and the actual return may vary based on the performance of the S&P 500 during that time.

Also worth reading: What are the dividend investing basics every beginner should know in 2026? · What is the significance of Robinhood Fein in the world of finance and investing? · What are the benefits of investing in the Columbia Dividend Income Fund?