CD Investment Profit Calculator ToolBy / CD Profit Calculator CD Profit Calculator Initial Deposit ($): Annual Interest Rate (%): Investment Period (Years): Compounding Frequency: Annually Semi-Annually Quarterly Monthly Daily Tax Rate on Interest (%): Calculate Profit Total Profit After Tax This calculator determines the net profit from your CD investment after deducting applicable taxes. The calculations include compounding effects and show how interest builds over time based on your input.