Donation Value Calculator

Donation Value Calculator: Maximize Your Impact :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –shadow-color: rgba(0, 0, 0, 0.1); } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(–background-color); color: var(–text-color); line-height: 1.6; margin: 0; padding: 0; display: flex; flex-direction: column; align-items: center; padding-top: 20px; padding-bottom: 40px; } .container { width: 95%; max-width: 960px; background-color: #fff; padding: 30px; border-radius: 8px; box-shadow: 0 4px 15px var(–shadow-color); margin: 0 auto; text-align: center; } h1, h2, h3 { color: var(–primary-color); margin-bottom: 15px; } h1 { font-size: 2.5em; margin-bottom: 25px; } h2 { font-size: 1.8em; border-bottom: 2px solid var(–primary-color); padding-bottom: 8px; margin-top: 30px; text-align: left; } h3 { font-size: 1.4em; margin-top: 20px; text-align: left; } .calculator-section { background-color: #f0f2f5; 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Donation Value Calculator

Understand the full financial impact of your charitable giving, including potential tax benefits.

Calculate Your Donation's Value

Enter the total amount you plan to donate.
Enter your highest income tax rate (e.g., 25 for 25%).
Cash or Check Appreciated Stock Other Property Select the type of asset donated.
Enter the original purchase price of the stock.
Enter the current market value of the donated property.
Enter the original purchase price of the property.

Your Donation Impact

$0.00
Tax Deduction Value:
Net Cost of Donation:
Potential Capital Gains Tax Avoided:
The Net Cost of Donation is calculated as: Donation Amount – Tax Deduction Value. The Tax Deduction Value is calculated as: Donation Amount * Marginal Tax Rate (for cash/check). For appreciated stock, the Tax Deduction Value is the lesser of the donation amount or the fair market value, and Capital Gains Tax Avoided is calculated based on the difference between fair market value and cost basis.

Donation Value Breakdown

Visualizing the components of your donation's value.

Donation Scenarios

Comparison of Donation Scenarios
Scenario Donation Amount Tax Deduction Net Cost Capital Gains Tax Avoided Total Value
Cash Donation
Appreciated Stock

Understanding the Donation Value Calculator

What is the Donation Value Calculator?

The Donation Value Calculator is a sophisticated tool designed to help individuals and organizations quantify the true financial worth of charitable contributions. It goes beyond the simple face value of a donation to incorporate crucial elements like tax deductibility and, in the case of appreciated assets, the avoidance of capital gains taxes. This calculator is essential for anyone looking to maximize their philanthropic impact while understanding the personal financial implications of their generosity. It helps donors make informed decisions, ensuring their contributions are both meaningful to the recipient and financially advantageous to themselves.

Who should use it?

  • Individuals planning to make charitable donations, especially those itemizing deductions.
  • Donors considering giving appreciated assets like stocks or property.
  • Financial advisors assisting clients with philanthropic planning.
  • Non-profit organizations seeking to educate potential donors on the benefits of giving.

Common misconceptions about donation value include:

  • Thinking the donation value is solely the amount given: The tax benefits can significantly alter the net cost.
  • Underestimating the value of donating appreciated assets: This can often provide a double benefit of deduction and tax avoidance.
  • Assuming all donations are fully deductible: There are limits based on Adjusted Gross Income (AGI) and the type of charity.

Donation Value Calculator Formula and Mathematical Explanation

The core of the Donation Value Calculator lies in accurately assessing the tax benefits associated with a charitable contribution. The calculation differs based on the type of donation.

Cash or Check Donations:

For cash or check donations, the primary benefit is the tax deduction. The calculator determines the value of this deduction based on your marginal tax rate.

Formula:

Tax Deduction Value = Donation Amount * (Marginal Tax Rate / 100)

The Net Cost of Donation is then:

Net Cost of Donation = Donation Amount - Tax Deduction Value

The Net Donation Value (or Total Impact) is essentially the Donation Amount, as this is the value received by the charity, but the Net Cost reflects your personal financial outlay after tax benefits.

Appreciated Stock Donations:

Donating appreciated stock (held for over a year) offers a potentially greater benefit. You can typically deduct the fair market value (FMV) of the stock, and you avoid paying capital gains tax on the appreciation.

Formulas:

Potential Capital Gains Tax Avoided = (Fair Market Value - Cost Basis) * (Capital Gains Tax Rate / 100)

Tax Deduction Value = MIN(Donation Amount (FMV), Deduction Limit based on AGI)

Note: For simplicity in this calculator, we assume the donation amount (FMV) is within AGI limits. The actual deduction limit can be up to 30% of AGI for appreciated assets to public charities.

Net Cost of Donation = Donation Amount - Tax Deduction Value

The Net Donation Value (Total Impact) is the FMV of the stock, plus the Capital Gains Tax Avoided, minus the Net Cost of Donation.

Variables Table:

Donation Value Calculator Variables
Variable Meaning Unit Typical Range
Donation Amount The total monetary value or fair market value of the asset donated. Currency ($) $1 – $1,000,000+
Marginal Tax Rate Your highest income tax bracket percentage. Percentage (%) 0% – 50%+
Cost Basis The original purchase price of an asset (e.g., stock). Currency ($) $0 – Donation Amount
Fair Market Value (FMV) The current market price of an asset. Currency ($) $0 – Donation Amount
Capital Gains Tax Rate The tax rate applied to profits from selling assets. (Assumed same as marginal income tax rate for simplicity here). Percentage (%) 0% – 30%+
Tax Deduction Value The amount of the donation that can be deducted from taxable income. Currency ($) $0 – Donation Amount
Net Cost of Donation The actual out-of-pocket expense after tax benefits. Currency ($) $0 – Donation Amount
Capital Gains Tax Avoided The amount of tax saved by not selling the appreciated asset. Currency ($) $0 – Significant Amount

Practical Examples (Real-World Use Cases)

Example 1: Cash Donation

Sarah is in the 24% marginal tax bracket and decides to donate $5,000 to her local animal shelter via check.

  • Inputs:
  • Donation Amount: $5,000
  • Marginal Tax Rate: 24%
  • Donation Type: Cash
  • Calculations:
  • Tax Deduction Value = $5,000 * 0.24 = $1,200
  • Net Cost of Donation = $5,000 – $1,200 = $3,800
  • Capital Gains Tax Avoided: $0 (Not applicable for cash)
  • Net Donation Value (to charity): $5,000

Interpretation: While Sarah gave $5,000, her actual out-of-pocket cost after the tax deduction is $3,800. The total value of her contribution, considering the tax savings, is $5,000 to the charity and $1,200 in tax savings for her.

Example 2: Appreciated Stock Donation

John holds shares of a tech company he bought for $2,000, now worth $10,000. He's in the 32% marginal tax bracket and plans to donate these shares to a university.

  • Inputs:
  • Donation Amount (FMV): $10,000
  • Cost Basis: $2,000
  • Marginal Tax Rate: 32%
  • Capital Gains Tax Rate (assumed): 15%
  • Donation Type: Appreciated Stock
  • Calculations:
  • Potential Capital Gains Tax Avoided = ($10,000 – $2,000) * 0.15 = $8,000 * 0.15 = $1,200
  • Tax Deduction Value = $10,000 (assuming within AGI limits)
  • Net Cost of Donation = $10,000 – $10,000 = $0
  • Net Donation Value (to charity): $10,000

Interpretation: By donating the stock, John gets a $10,000 tax deduction and avoids $1,200 in capital gains tax. His net cost is effectively $0 because he would have paid capital gains tax if he sold it. This strategy maximizes his philanthropic impact and personal financial benefit compared to selling the stock and donating the cash.

How to Use This Donation Value Calculator

Using the Donation Value Calculator is straightforward. Follow these steps to understand the financial implications of your charitable giving:

  1. Enter Donation Amount: Input the total value of the asset you intend to donate. For cash, this is the amount. For stock or property, it's the current Fair Market Value.
  2. Specify Donation Type: Select 'Cash or Check', 'Appreciated Stock', or 'Other Property' from the dropdown. This adjusts the calculation logic.
  3. Input Cost Basis (if applicable): If donating stock or property, enter its original purchase price (cost basis).
  4. Enter Your Marginal Tax Rate: Provide your highest income tax rate as a percentage (e.g., 25 for 25%). This is crucial for calculating the tax deduction.
  5. Click 'Calculate': The calculator will instantly display:
    • Net Donation Value: The value the charity receives.
    • Tax Deduction Value: The amount you can deduct from your taxable income.
    • Net Cost of Donation: Your actual out-of-pocket expense after tax benefits.
    • Potential Capital Gains Tax Avoided: Relevant for appreciated assets.
  6. Interpret the Results: The primary highlighted result shows your net cost. The intermediate values provide a breakdown of the financial benefits.
  7. Use the Table and Chart: Compare different scenarios or visualize the components of your donation's value.
  8. Reset or Copy: Use the 'Reset' button to clear fields and start over, or 'Copy Results' to save the key figures.

Decision-making guidance: This calculator helps you see if donating an appreciated asset is more beneficial than selling it and donating cash. It also highlights the significant impact tax deductions have on reducing the net cost of your generosity.

Key Factors That Affect Donation Value Results

Several factors influence the calculated value of your donation. Understanding these can help you optimize your giving strategy:

  1. Marginal Tax Rate: This is the most direct factor affecting the tax deduction's value. A higher tax rate means a larger tax saving for the same donation amount. Ensure you use your correct marginal rate.
  2. Type of Asset Donated: As shown, cash, appreciated stock, and other property have different deduction rules and potential tax implications (like capital gains). Donating long-term appreciated assets often yields the highest overall benefit.
  3. Holding Period of Assets: For assets like stock, if held for one year or less (short-term capital gain property), the deduction is typically limited to your cost basis, not the fair market value. This calculator assumes long-term holding.
  4. Fair Market Value vs. Cost Basis: The greater the difference (appreciation), the higher the potential capital gains tax avoided when donating appreciated assets. Accurate valuation is key.
  5. Charity Type and Limits: Deductions are generally limited to a percentage of your Adjusted Gross Income (AGI) – typically 60% for cash and 30% for appreciated assets to public charities. This calculator simplifies by assuming you are within these limits. Exceeding limits may allow carryforwards.
  6. Tax Laws and Regulations: Tax codes change. Current laws dictate deductibility, valuation rules, and AGI limits. Always consult a tax professional for the latest information and personalized advice.
  7. Cash Flow and Liquidity Needs: While donating assets can be tax-efficient, consider your own financial situation. Ensure you don't deplete necessary cash reserves or retain insufficient assets for your own needs.

Frequently Asked Questions (FAQ)

What is the difference between the donation amount and the net cost?

The donation amount is the value given to the charity. The net cost is your actual out-of-pocket expense after accounting for the tax deduction you receive. For example, donating $1,000 when you're in the 20% tax bracket means you give $1,000, but your net cost is $800 ($1,000 – $200 tax saving).

Can I deduct the full fair market value of any asset I donate?

Generally, yes, for long-term appreciated assets donated to public charities, you can deduct the fair market value, up to certain AGI limits. However, for short-term appreciated assets or donations to private non-operating foundations, the deduction is usually limited to your cost basis. Always verify with tax regulations.

What if my donation exceeds the AGI limits for deductions?

If your charitable contributions exceed the AGI limits (e.g., 60% for cash, 30% for appreciated assets), you can typically carry forward the excess deduction to the next five tax years, subject to the same AGI limitations in those years.

How do I determine the Fair Market Value (FMV) of donated property?

FMV is the price a willing buyer would pay and a willing seller would accept, neither being compelled to act and both having reasonable knowledge of relevant facts. For unique items like art or real estate, you may need a qualified appraisal. For publicly traded stock, it's the average of the high and low on the date of donation.

Is donating appreciated stock always better than donating cash?

Often, yes, especially if you would have otherwise sold the stock and paid capital gains tax. Donating appreciated stock allows you to deduct the FMV and avoid capital gains tax. However, if the asset has minimal appreciation, donating cash might be simpler. Consider your tax bracket and the asset's holding period.

Do I need a receipt from the charity?

Yes. For donations of $250 or more, you need a contemporaneous written acknowledgment from the charity. For non-cash donations valued over $500, you'll also need to file IRS Form 8283.

What is the difference between a tax deduction and a tax credit?

A tax deduction reduces your taxable income. A tax credit directly reduces the amount of tax you owe. Charitable donations typically provide a tax deduction, reducing your tax bill indirectly.

Can I deduct the value of my time or services donated?

No, you cannot deduct the value of your time or services. However, you can deduct out-of-pocket expenses you incur while volunteering for a qualified charity (e.g., mileage, supplies).

var donationAmountInput = document.getElementById('donationAmount'); var marginalTaxRateInput = document.getElementById('marginalTaxRate'); var donationTypeSelect = document.getElementById('donationType'); var stockBasisInput = document.getElementById('stockBasis'); var propertyFairMarketValueInput = document.getElementById('propertyFairMarketValue'); var propertyCostBasisInput = document.getElementById('propertyCostBasis'); var donationAmountError = document.getElementById('donationAmountError'); var marginalTaxRateError = document.getElementById('marginalTaxRateError'); var donationTypeError = document.getElementById('donationTypeError'); var stockBasisError = document.getElementById('stockBasisError'); var propertyFairMarketValueError = document.getElementById('propertyFairMarketValueError'); var propertyCostBasisError = document.getElementById('propertyCostBasisError'); var netDonationValueDisplay = document.getElementById('netDonationValue'); var taxDeductionDisplay = document.getElementById('taxDeduction'); var netCostDisplay = document.getElementById('netCost'); var capitalGainsTaxAvoidedDisplay = document.getElementById('capitalGainsTaxAvoided'); var tableCashDonation = document.getElementById('tableCashDonation'); var tableCashDeduction = document.getElementById('tableCashDeduction'); var tableCashNetCost = document.getElementById('tableCashNetCost'); var tableCashGainsTax = document.getElementById('tableCashGainsTax'); var tableCashTotalValue = document.getElementById('tableCashTotalValue'); var tableStockDonation = document.getElementById('tableStockDonation'); var tableStockDeduction = document.getElementById('tableStockDeduction'); var tableStockNetCost = document.getElementById('tableStockNetCost'); var tableStockGainsTax = document.getElementById('tableStockGainsTax'); var tableStockTotalValue = document.getElementById('tableStockTotalValue'); var chart = null; var chartContext = null; var donationChartCanvas = document.getElementById('donationChart'); var ASSUMED_CAPITAL_GAINS_RATE = 0.15; // Assuming 15% for simplicity function formatCurrency(amount) { return "$" + amount.toFixed(2); } function formatPercentage(rate) { return (rate * 100).toFixed(2) + "%"; } function validateInput(inputElement, errorElement, minValue, maxValue) { var value = parseFloat(inputElement.value); var isValid = true; errorElement.textContent = "; if (isNaN(value)) { errorElement.textContent = 'Please enter a valid number.'; isValid = false; } else if (value maxValue) { errorElement.textContent = 'Value exceeds maximum limit.'; isValid = false; } return isValid ? value : null; } function updateInputVisibility() { var type = donationTypeSelect.value; document.getElementById('stockBasisGroup').style.display = 'none'; document.getElementById('propertyValueGroup').style.display = 'none'; document.getElementById('propertyCostBasisGroup').style.display = 'none'; if (type === 'stock') { document.getElementById('stockBasisGroup').style.display = 'block'; } else if (type === 'other') { document.getElementById('propertyValueGroup').style.display = 'block'; document.getElementById('propertyCostBasisGroup').style.display = 'block'; } } function calculateDonationValue() { // Clear previous errors donationAmountError.textContent = "; marginalTaxRateError.textContent = "; stockBasisError.textContent = "; propertyFairMarketValueError.textContent = "; propertyCostBasisError.textContent = "; // Validate inputs var donationAmount = validateInput(donationAmountInput, donationAmountError, 0); var marginalTaxRatePercent = validateInput(marginalTaxRateInput, marginalTaxRateError, 0, 100); var stockBasis = null; var propertyFairMarketValue = null; var propertyCostBasis = null; var donationType = donationTypeSelect.value; if (donationAmount === null || marginalTaxRatePercent === null) { return; // Stop calculation if basic inputs are invalid } var marginalTaxRate = marginalTaxRatePercent / 100; var taxDeductionValue = 0; var netCost = 0; var capitalGainsTaxAvoided = 0; var netDonationValue = donationAmount; // Value to charity if (donationType === 'cash') { taxDeductionValue = donationAmount * marginalTaxRate; netCost = donationAmount – taxDeductionValue; capitalGainsTaxAvoided = 0; // Not applicable } else if (donationType === 'stock') { stockBasis = validateInput(stockBasisInput, stockBasisError, 0); if (stockBasis === null) return; // For appreciated stock, deduction is FMV (donationAmount), avoid CGT taxDeductionValue = donationAmount; // Assuming FMV is deductible netCost = donationAmount – taxDeductionValue; // Should be 0 if fully deductible capitalGainsTaxAvoided = (donationAmount – stockBasis) * ASSUMED_CAPITAL_GAINS_RATE; // Ensure capital gains tax avoided isn't negative if basis > FMV (unlikely for "appreciated") if (capitalGainsTaxAvoided < 0) capitalGainsTaxAvoided = 0; } else if (donationType === 'other') { propertyFairMarketValue = validateInput(propertyFairMarketValueInput, propertyFairMarketValueError, 0); propertyCostBasis = validateInput(propertyCostBasisInput, propertyCostBasisError, 0); if (propertyFairMarketValue === null || propertyCostBasis === null) return; // For simplicity, assume FMV is deductible and donationAmount is FMV taxDeductionValue = propertyFairMarketValue; netCost = propertyFairMarketValue – taxDeductionValue; // Should be 0 if fully deductible capitalGainsTaxAvoided = (propertyFairMarketValue – propertyCostBasis) * ASSUMED_CAPITAL_GAINS_RATE; if (capitalGainsTaxAvoided < 0) capitalGainsTaxAvoided = 0; } // Update displays netDonationValueDisplay.textContent = formatCurrency(netDonationValue); taxDeductionDisplay.textContent = formatCurrency(taxDeductionValue); netCostDisplay.textContent = formatCurrency(netCost); capitalGainsTaxAvoidedDisplay.textContent = formatCurrency(capitalGainsTaxAvoided); // Update table and chart updateScenarioTable(donationAmount, marginalTaxRate, taxDeductionValue, netCost, capitalGainsTaxAvoided, donationType, stockBasis, propertyFairMarketValue, propertyCostBasis); updateChart(donationAmount, taxDeductionValue, netCost, capitalGainsTaxAvoided, donationType); } function updateScenarioTable(cashDonationAmount, marginalTaxRate, cashTaxDeduction, cashNetCost, cashGainsTax, donationType, stockBasis, stockFMV, stockCostBasis) { // Cash Scenario tableCashDonation.textContent = formatCurrency(cashDonationAmount); tableCashDeduction.textContent = formatCurrency(cashTaxDeduction); tableCashNetCost.textContent = formatCurrency(cashNetCost); tableCashGainsTax.textContent = formatCurrency(0); // No capital gains for cash tableCashTotalValue.textContent = formatCurrency(cashDonationAmount); // Value to charity // Stock Scenario (using current inputs for comparison) var currentDonationAmount = parseFloat(donationAmountInput.value); var currentMarginalTaxRate = parseFloat(marginalTaxRateInput.value) / 100; var currentStockBasis = null; var currentStockFMV = null; var currentStockCostBasis = null; var currentStockTaxDeduction = 0; var currentStockNetCost = 0; var currentStockGainsTaxAvoided = 0; if (donationType === 'stock') { currentStockBasis = parseFloat(stockBasisInput.value); currentStockFMV = currentDonationAmount; // Use the main donation amount as FMV for stock currentStockCostBasis = currentStockBasis; // Use the basis input currentStockTaxDeduction = currentStockFMV; // Assume FMV is deductible currentStockNetCost = currentStockFMV – currentStockTaxDeduction; currentStockGainsTaxAvoided = (currentStockFMV – currentStockCostBasis) * ASSUMED_CAPITAL_GAINS_RATE; if (currentStockGainsTaxAvoided < 0) currentStockGainsTaxAvoided = 0; } else if (donationType === 'other') { currentStockFMV = parseFloat(propertyFairMarketValueInput.value); currentStockCostBasis = parseFloat(propertyCostBasisInput.value); currentStockTaxDeduction = currentStockFMV; currentStockNetCost = currentStockFMV – currentStockTaxDeduction; currentStockGainsTaxAvoided = (currentStockFMV – currentStockCostBasis) * ASSUMED_CAPITAL_GAINS_RATE; if (currentStockGainsTaxAvoided < 0) currentStockGainsTaxAvoided = 0; } else { // Default to cash values if not stock/property for comparison currentStockFMV = currentDonationAmount; currentStockCostBasis = currentDonationAmount; // Assume basis = FMV if not specified currentStockTaxDeduction = currentDonationAmount * currentMarginalTaxRate; currentStockNetCost = currentDonationAmount – currentStockTaxDeduction; currentStockGainsTaxAvoided = 0; } tableStockDonation.textContent = formatCurrency(currentStockFMV); tableStockDeduction.textContent = formatCurrency(currentStockTaxDeduction); tableStockNetCost.textContent = formatCurrency(currentStockNetCost); tableStockGainsTax.textContent = formatCurrency(currentStockGainsTaxAvoided); tableStockTotalValue.textContent = formatCurrency(currentStockFMV); // Value to charity } function updateChart(donationAmount, taxDeductionValue, netCost, capitalGainsTaxAvoided, donationType) { var ctx = donationChartCanvas.getContext('2d'); // Destroy previous chart instance if it exists if (chart) { chart.destroy(); } var labels = ['Value to Charity', 'Tax Deduction Benefit', 'Capital Gains Tax Avoided']; var data = []; var colors = ['#28a745', '#004a99', '#ffc107']; // Green, Blue, Yellow if (donationType === 'cash') { data = [ donationAmount, // Value to Charity taxDeductionValue, // Tax Deduction Benefit 0 // Capital Gains Tax Avoided ]; labels = ['Donation Amount', 'Tax Deduction Benefit']; data = [donationAmount, taxDeductionValue]; colors = ['#28a745', '#004a99']; } else { // Stock or Other Property data = [ donationAmount, // Value to Charity (FMV) taxDeductionValue, // Tax Deduction Benefit (FMV) capitalGainsTaxAvoided // Capital Gains Tax Avoided ]; labels = ['Donation FMV', 'Tax Deduction Benefit', 'Capital Gains Tax Avoided']; colors = ['#28a745', '#004a99', '#ffc107']; } chart = new Chart(ctx, { type: 'doughnut', // Changed to doughnut for better visualization of parts data: { labels: labels, datasets: [{ label: 'Donation Value Components', data: data, backgroundColor: colors, hoverOffset: 4 }] }, options: { responsive: true, maintainAspectRatio: false, plugins: { legend: { position: 'top', }, title: { display: true, text: 'Breakdown of Your Donation\'s Value' } } } }); } function resetCalculator() { donationAmountInput.value = '1000'; marginalTaxRateInput.value = '25'; donationTypeSelect.value = 'cash'; stockBasisInput.value = '500'; propertyFairMarketValueInput.value = '1000'; propertyCostBasisInput.value = '300'; // Clear errors donationAmountError.textContent = ''; marginalTaxRateError.textContent = ''; stockBasisError.textContent = ''; propertyFairMarketValueError.textContent = ''; propertyCostBasisError.textContent = ''; updateInputVisibility(); calculateDonationValue(); // Recalculate with default values } function copyResults() { var donationAmount = donationAmountInput.value; var marginalTaxRate = marginalTaxRateInput.value; var donationType = donationTypeSelect.options[donationTypeSelect.selectedIndex].text; var taxDeduction = taxDeductionDisplay.textContent; var netCost = netCostDisplay.textContent; var capitalGainsTaxAvoided = capitalGainsTaxAvoidedDisplay.textContent; var netDonationValue = netDonationValueDisplay.textContent; var assumptions = "Key Assumptions:\n"; assumptions += "- Donation Type: " + donationType + "\n"; if (donationType === 'Appreciated Stock' || donationType === 'Other Property') { assumptions += "- Cost Basis: " + document.getElementById('stockBasis').value + " (or Property Basis: " + document.getElementById('propertyCostBasis').value + ")\n"; assumptions += "- Fair Market Value: " + document.getElementById('propertyFairMarketValue').value + "\n"; } assumptions += "- Marginal Tax Rate: " + marginalTaxRate + "%\n"; assumptions += "- Assumed Capital Gains Rate: " + (ASSUMED_CAPITAL_GAINS_RATE * 100) + "%\n"; var textToCopy = "— Donation Value Calculation Results —\n\n"; textToCopy += "Donation Amount: " + formatCurrency(parseFloat(donationAmount)) + "\n"; textToCopy += "Value to Charity: " + netDonationValue + "\n"; textToCopy += "Tax Deduction Value: " + taxDeduction + "\n"; textToCopy += "Net Cost of Donation: " + netCost + "\n"; textToCopy += "Potential Capital Gains Tax Avoided: " + capitalGainsTaxAvoided + "\n\n"; textToCopy += assumptions; // Use a temporary textarea to copy text var tempTextArea = document.createElement("textarea"); tempTextArea.value = textToCopy; document.body.appendChild(tempTextArea); tempTextArea.select(); try { document.execCommand("copy"); alert("Results copied to clipboard!"); } catch (err) { console.error("Failed to copy: ", err); alert("Failed to copy results. Please copy manually."); } document.body.removeChild(tempTextArea); } function toggleFaq(element) { var paragraph = element.nextElementSibling; if (paragraph.style.display === "block") { paragraph.style.display = "none"; } else { paragraph.style.display = "block"; } } // Initial setup document.addEventListener('DOMContentLoaded', function() { updateInputVisibility(); calculateDonationValue(); // Perform initial calculation // Add event listeners for real-time updates donationAmountInput.addEventListener('input', calculateDonationValue); marginalTaxRateInput.addEventListener('input', calculateDonationValue); donationTypeSelect.addEventListener('change', function() { updateInputVisibility(); calculateDonationValue(); }); stockBasisInput.addEventListener('input', calculateDonationValue); propertyFairMarketValueInput.addEventListener('input', calculateDonationValue); propertyCostBasisInput.addEventListener('input', calculateDonationValue); // Initialize chart context chartContext = donationChartCanvas.getContext('2d'); });

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