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When Applying R$ 250 Per Month In The Caixa Savings Account For 10 Years, The Investor Accumulates About R$ 45.5 Thousand, Of Which R$ 30 Thousand Comes From Contributions And Little More Than R$ 15.5 Thousand From Earnings, According To Central Bank Rules And Simulation With Compound Interest
Investing R$ 250 Monthly In The Caixa Savings Account Over 10 Years Results In An Approximate Final Balance Of R$ 45,532, Considering The Current Remuneration Rules Defined By The Central Bank And The Basic Interest Rate At A High Level.
The Simulation Reveals That, Despite The Security And The Tax Exemption, The Savings Account Delivers A Limited Return In The Long Term.
How The Caixa Savings Account Earning Works
The Caixa Savings Account Follows The Same Rules Applied To Any Savings Account In Brazil. These Regulations Are Defined By The Central Bank Of Brazil And Do Not Vary According To The Bank. This Means That The Earning Is Identical In Public Or Private Institutions.
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The Determining Factor For The Calculation Is The Selic Rate. When The Selic Is Above 8.5% Per Year — As In The Considered Scenario, Around 15% — The Savings Account Yields 0.5% Per Month, Plus The Reference Rate (TR). When The Selic Is Equal To Or Below 8.5%, The Earnings Become 70% Of The Selic, Also Added To The TR.
In Practice, This Model Causes The Savings Account Not To Fully Follow The Interest Rate Hikes, Limiting The Investor’s Earning Potential.
30-Day Rule Influences Return
A Central Aspect Of The Caixa Savings Account Is The So-Called Anniversary Rule. For The Money To Earn, It Needs To Remain Invested For A Full 30 Days. If The Investor Withdraws The Amount Before This Period, There Is No Remuneration.
If The Withdrawal Is Partial, The Earnings Apply Only To The Amount That Remains In The Account Until Completing The Cycle. This Means That Frequent Transactions Further Reduce The Effective Return, Especially For Those Who Use The Savings Account As A Check Account.
Monthly Rate Used In The Simulation
In The Presented Simulation, A Monthly Yield Of Approximately 0.66% Was Considered. This Percentage Results From The Sum Of The Fixed 0.5% With The Reference Rate Of The Analyzed Period, Which Was Close To 0.16% In The Reference Month.
This Rate Was Applied Compounded, Meaning That The Interest Each Month Is Incorporated Into The Balance And Starts To Earn Along With The New Contributions Made In The Following Months.
How Much The Investor Puts In From Their Own Pocket
When Investing R$ 250 Every Month For 10 Years In The Caixa Savings Account, The Total Amount Disbursed Is R$ 30 Thousand. This Amount Corresponds Exclusively To The Capital Invested, Without Considering Any Earnings.
Each Month, The New Contribution Is Added To The Existing Balance, Forming The Base For The Calculation Of Compound Interest. It Is This Accumulating Effect That Allows The Final Amount To Be Significantly Greater Than The Total Invested.
Final Result After 10 Years
At The End Of The 120 Months, The Accumulated Balance Reaches About R$ 45,532. Of This Total, Approximately R$ 15,532 Corresponds To Earnings, While The Remaining R$ 30 Thousand Is The Capital Invested Over The Period.
In Practice, The Earnings Obtained From Interest Amount To Just Over Half Of The Total That Came From The Investor’s Pocket Over The Decade.
Tax Exemption Is A Relevant Advantage
One Of The Main Attractions Of The Caixa Savings Account Is The Exemption From Income Tax. Unlike Investments Such As CDBs Or Fixed Income Funds, The Final Amount Calculated Is Completely Net, With No Tax Discounts.
Additionally, The Savings Account Benefits From The Protection Of The Credit Guarantee Fund, Within Established Limits, Which Reinforces The Perception Of Security For Small Investors.
Comparison With Investments Linked To The CDI
Despite The Simplicity And Security, The Savings Account Is Often Considered One Of The Least Profitable Investments In The Market. In A High-Interest Scenario, Investments Yielding 100% Of The CDI Tend To Show Significantly Superior Results Over The Same Period, Even After The Income Tax Has Been Applied.
This Difference Occurs Because The Savings Account Has A Limited Yield, While Products Linked To The CDI More Closely Follow The Basic Interest Rate Of The Economy.
The Role Of Discipline And The Long Term
The Simulation Shows That Consistency In Contributions Is A Decisive Factor For Wealth Formation. Even With A Modest Rate, Investing Every Month Transforms Small Amounts Into A Significant Sum Over The Years.
At The Same Time, The Exercise Highlights That The Choice Of Financial Product Directly Impacts The Final Result, Especially Over Long Horizons Such As 10, 20, Or 30 Years.
This Article Was Prepared Based On Information Presented On The Channel Tiago Siqueira On YouTube, Which Used Official Data From The Central Bank And A Simulation Of Compound Interest To Demonstrate The Performance Of The Caixa Savings Account Over 10 Years.
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