High-Interest Savings vs. Bonds ROI Calculator
Common Investment Details
High-Interest Savings Account (HISA) Details
Bond Details
Note: For simplicity, this calculator does not account for reinvestment of bond coupon payments or complex bond market price fluctuations beyond the assumed sale price if sold early. Bond ROI is calculated for the shorter of Investment Horizon or Bond's Years to Maturity.
ROI Comparison Results
Please enter your investment details on the 'Investment Inputs' tab and click 'Calculate ROI'.
Quick Summary Table
| Metric | HISA | Bond |
|---|
Considerations & Notes
Final Value: ${formatCurrency(hisaFinalValue)}
Total Interest Earned: ${formatCurrency(hisaTotalInterest)}
Total ROI: ${formatPercent(hisaRoi)}
Annualized ROI: ${formatPercent(hisaAnnualizedRoi)}
Bond Investment
Bond Name: ${getStrVal('bondName') || 'N/A'}
Actual Purchase Price: ${formatCurrency(bondActualPurchasePrice)} (for Face Value of ${formatCurrency(bondFaceValue)})
Effective Period Considered: ${effectiveBondPeriod.toFixed(1)} years
Total Coupon Payments Received: ${formatCurrency(totalCouponPayments)}
Capital Gain/(Loss): ${formatCurrency(capitalGainLoss)}
Total Return from Bond: ${formatCurrency(bondTotalReturn)}
Final Value (Sale/Maturity Proceeds + Coupons): ${formatCurrency(finalBondValueForInvestor + totalCouponPayments)}
Total ROI: ${formatPercent(bondRoi)}
Annualized ROI (over effective period): ${formatPercent(bondAnnualizedRoi)}
HISA vs. Bond ROI Analysis
`; html += `Report Date: ${new Date().toLocaleDateString()}
`; // Inputs html += `Initial Investment Details
`; html += `Principal Investment Amount: ${formatCurrency(getNumVal('principalAmount'))}
`; html += `Investment Horizon: ${getNumVal('investmentHorizon')} years
`; html += `HISA Details (Input)
`; html += `Annual Interest Rate: ${getNumVal('hisaRate')}%
`; html += `Compounding Frequency: ${document.getElementById('hisaCompoundFreq').options[document.getElementById('hisaCompoundFreq').selectedIndex].text}
`; html += `Bond Details (Input)
`; html += `Bond Name: ${getStrVal('bondName') || 'N/A'}
`; html += `Face Value: ${formatCurrency(getNumVal('bondFaceValue'))}
`; html += `Purchase Price: ${getNumVal('bondPurchasePricePercent')}% of Face Value
`; html += `Annual Coupon Rate: ${getNumVal('bondCouponRate')}%
`; html += `Coupon Frequency: ${document.getElementById('bondCouponFreq').options[document.getElementById('bondCouponFreq').selectedIndex].text}
`; html += `Years to Maturity: ${getNumVal('bondYTM')} years
`; html += `Assumed Sale Price if Early: ${getNumVal('bondSalePricePercentIfEarly')}% of Face Value
`; // Results const resultsDiv = document.getElementById('resultsOutput'); if (resultsDiv && resultsDiv.children.length === 2) { html += `Comparison Results
`; html += `HISA Results
${resultsDiv.children[0].innerHTML.replace(//g, '').replace(//g, '')}`; html += `Bond Results
${resultsDiv.children[1].innerHTML.replace(//g, '').replace(//g, '')}`; } // Summary Table const summaryTableEl = document.querySelector('#comparisonSummaryTableContainer .comparison-summary-table'); if (summaryTableEl) { html += `Quick Summary Table
${summaryTableEl.outerHTML}`; } // Notes html += `Considerations & Notes
`; html += `HISA Notes:
${getStrVal('hisaNotes') || 'Not specified.'}
`; html += `Bond Notes:
${getStrVal('bondNotes') || 'Not specified.'}
`; html += `General Notes:
${getStrVal('generalNotes') || 'Not specified.'}
