When Should I Take Social Security Calculator

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When Should I Take Social Security Calculator

Social Security Benefit Age Calculator

Enter your year of birth to determine your Full Retirement Age.
This is the amount you'd receive if you claim at your Full Retirement Age.
Your best guess for how long you might live.
Average annual increase in cost of living.
Estimated annual increase to your Social Security benefit.
62 (Earliest Possible) 63 64 65 66 67 (Full Retirement Age for most) 68 69 70 (Latest possible for increased benefit)
Select the age at which you plan to start receiving benefits.

Your Social Security Benefit Projections

Full Retirement Age (FRA): —
Monthly Benefit at Age : —
Estimated Total Lifetime Benefits: —

Key Assumptions:

Assumed Annual Inflation: —
Assumed Annual COLA: —
Projected Lifespan: — years
How it's Calculated: Your Full Retirement Age (FRA) is determined by your birth year. Your monthly benefit at your chosen claiming age is calculated by adjusting your FRA benefit based on the Social Security Administration's reduction (for claiming early) or increase (for claiming late) factors. These factors are applied to your FRA benefit. For example, claiming at 62 (4 years before FRA for those born 1943-1959) results in a 25% reduction. Claiming at 70 (3 years after FRA for those born 1943-1959) results in a 24% increase. The total lifetime benefits are estimated by summing the monthly benefits received from the claiming age until the projected life expectancy, with annual adjustments for COLA and inflation.
Monthly Benefit Projections Over Time
Benefit Comparison by Claiming Age
Claiming Age Monthly Benefit Total Lifetime Benefits (Est.)

What is the Social Security Benefit Age Calculator?

The When Should I Take Social Security Calculator is a vital financial planning tool designed to help individuals make an informed decision about the optimal age to begin receiving their Social Security retirement benefits. Social Security is a cornerstone of retirement income for millions, and the age at which you claim your benefits has a profound and lasting impact on the amount you receive each month and over your lifetime. This calculator simplifies complex Social Security rules, allowing users to input personal details like their birth year, estimated benefit at Full Retirement Age (FRA), and life expectancy, and then see projected monthly payments and total lifetime benefits for various claiming ages.

Who should use it? Anyone nearing retirement age (typically 50 and older) who is eligible for Social Security retirement benefits should consider using this calculator. This includes individuals who are planning to retire soon, those considering early retirement, and even those who plan to work past their FRA. It's particularly useful for understanding the trade-offs between receiving smaller payments for a longer period versus larger payments for a shorter period.

Common misconceptions about Social Security claiming include believing that everyone gets the same benefit, that claiming early is always best to "get your money's worth," or that your benefit amount is fixed regardless of when you start. In reality, your benefit is highly personalized, and the claiming decision involves a complex interplay of your health, financial needs, other retirement income sources, and longevity expectations. This calculator helps demystify these aspects.

Social Security Benefit Age Calculator Formula and Mathematical Explanation

The core of the When Should I Take Social Security Calculator relies on understanding the Social Security Administration's (SSA) rules for benefit adjustments based on claiming age relative to your Full Retirement Age (FRA). The calculation involves several steps:

  1. Determine Full Retirement Age (FRA): This is based on the year of birth. For those born between 1943 and 1959, FRA is 66 plus an additional two months for each birth year after 1954, up to 67. For those born in 1960 or later, FRA is 67.
  2. Calculate Benefit Adjustment Factor:
    • Claiming Early (Before FRA): For each month claimed before FRA, the benefit is reduced. The reduction is typically 5/9 of 1% per month for the first 36 months, and 5/12 of 1% per month for any additional months. For example, claiming at 62 (4 years or 48 months before FRA for those born 1943-1959) results in a reduction of approximately 25%.
    • Claiming Late (After FRA): For each month claimed after FRA, the benefit is increased. This is known as Delayed Retirement Credits (DRCs). The DRCs are 8% per year for those born 1943 or later, applied for each month of delay up to age 70.
  3. Calculate Monthly Benefit at Claiming Age:

    Monthly Benefit at Claiming Age = Estimated Monthly Benefit at FRA * (1 + (Delayed Months * 0.00667)) (for claiming after FRA, up to age 70)

    Monthly Benefit at Claiming Age = Estimated Monthly Benefit at FRA * (1 - (Early Months * 0.00417) - (Additional Early Months * 0.0025)) (for claiming before FRA)

    Note: The exact percentages vary slightly based on the number of months before/after FRA. The calculator uses simplified, commonly cited approximations.

  4. Estimate Total Lifetime Benefits: This is calculated by summing the projected monthly benefits from the claiming age until the estimated life expectancy, incorporating annual adjustments for Cost-of-Living Adjustments (COLA) and inflation.

    Total Lifetime Benefits = Σ [Monthly Benefit at Claiming Age * (1 + COLA)^n * (1 + Inflation)^n] from n=0 to (Life Expectancy – Claiming Age)

    Where 'n' is the number of years after the claiming age. The calculator uses a simplified annual compounding approach.

Variables Table:

Variable Meaning Unit Typical Range
Birth Year Year the individual was born. Year 1930 – 2024
Estimated Monthly Benefit at FRA Projected monthly Social Security payment if claimed at Full Retirement Age. USD/Month $500 – $4,500+
Life Expectancy Estimated number of years the individual expects to live. Years 60 – 120
Annual Inflation Rate Average annual percentage increase in the general price level. % 0% – 10%
Annual COLA Annual percentage increase applied to Social Security benefits to account for inflation. % 0% – 10% (historically varies)
Claiming Age Age at which the individual starts receiving Social Security benefits. Years 62 – 70
Full Retirement Age (FRA) Age at which an individual can receive their full, unreduced Social Security benefit. Years 66 – 67

Practical Examples (Real-World Use Cases)

Let's explore how the When Should I Take Social Security Calculator can be used with practical examples:

Example 1: The Cautious Planner

Scenario: Sarah was born in 1960, making her FRA 67. Her estimated monthly benefit at FRA is $2,200. She is in good health and expects to live to 90. She assumes a 3% annual inflation rate and a 2% annual COLA.

Inputs:

  • Year of Birth: 1960
  • Estimated Monthly Benefit at FRA: $2,200
  • Estimated Life Expectancy: 90
  • Assumed Annual Inflation Rate: 3%
  • Assumed Annual COLA: 2%

Calculations (using the calculator):

  • FRA: 67
  • Claiming at 67: Monthly Benefit = $2,200. Total Lifetime = ~$650,000
  • Claiming at 62 (5 years early): Monthly Benefit = ~$1,650. Total Lifetime = ~$550,000
  • Claiming at 70 (3 years late): Monthly Benefit = ~$2,728. Total Lifetime = ~$780,000

Financial Interpretation: For Sarah, delaying Social Security until age 70 provides the highest potential lifetime benefit, assuming she lives to 90 and the COLA/inflation assumptions hold. Claiming early at 62 significantly reduces her monthly income and total lifetime payout. The calculator highlights that delaying provides an extra ~$1,078 per month compared to claiming at 62, and ~$528 more than claiming at FRA.

Example 2: The Health-Conscious Early Retirer

Scenario: John was born in 1958, making his FRA 66 and 8 months. His estimated monthly benefit at FRA is $1,800. He has some health concerns and estimates his life expectancy at 80. He uses a 2.5% inflation rate and a 1.5% COLA.

Inputs:

  • Year of Birth: 1958
  • Estimated Monthly Benefit at FRA: $1,800
  • Estimated Life Expectancy: 80
  • Assumed Annual Inflation Rate: 2.5%
  • Assumed Annual COLA: 1.5%

Calculations (using the calculator):

  • FRA: 66 years, 8 months
  • Claiming at 66 years, 8 months: Monthly Benefit = $1,800. Total Lifetime = ~$400,000
  • Claiming at 62 (4 years, 8 months early): Monthly Benefit = ~$1,350. Total Lifetime = ~$330,000
  • Claiming at 66 years, 8 months (FRA): Monthly Benefit = $1,800. Total Lifetime = ~$400,000
  • Claiming at 70 (3 years, 4 months late): Monthly Benefit = ~$2,232. Total Lifetime = ~$480,000

Financial Interpretation: John's shorter life expectancy makes the decision more nuanced. While claiming later still yields a higher total lifetime benefit, the difference is less dramatic than in Sarah's case. Given his health concerns, claiming at FRA ($1,800/month) might offer a good balance between receiving benefits sooner and a reasonable monthly amount. Claiming at 62 provides immediate income but at a significant reduction. The calculator helps him visualize that delaying past FRA might not be as beneficial if his lifespan is shorter.

How to Use This When Should I Take Social Security Calculator

Using the When Should I Take Social Security Calculator is straightforward. Follow these steps to get personalized insights:

  1. Enter Your Birth Year: This is crucial for determining your Full Retirement Age (FRA).
  2. Input Your Estimated Monthly Benefit at FRA: Find this information on your latest Social Security statement. If you don't know it, you can estimate it or use a reasonable placeholder.
  3. Estimate Your Life Expectancy: Consider your family history, current health, and lifestyle. It's often wise to plan for a longer lifespan than you might expect.
  4. Set Assumed Inflation and COLA Rates: Use conservative estimates (e.g., 2-3% for inflation, 1-2% for COLA) or consult current economic forecasts. These significantly impact long-term projections.
  5. Select Your Desired Claiming Age: Use the dropdown menu to choose the age you are considering for starting benefits, from the earliest (62) to the latest (70).
  6. Click "Calculate Benefits": The calculator will instantly display your primary projected monthly benefit for the selected age, along with your FRA, the monthly benefit at your chosen age, and estimated total lifetime benefits.

How to read results: The primary result highlights the monthly benefit for your selected claiming age. Intermediate results show your FRA, the exact monthly benefit at your chosen age, and the estimated total amount you might receive over your lifetime. Key assumptions used in the calculation are also displayed. The chart visually compares monthly benefits across different ages, and the table provides a clear side-by-side comparison.

Decision-making guidance: Compare the monthly amounts and total lifetime benefits across different claiming ages. Consider your health, financial needs, other retirement income sources (like pensions or savings), and whether you plan to work in retirement. If you have a higher life expectancy and sufficient other income, delaying may maximize your lifetime benefit. If you need income sooner or have health concerns, claiming earlier might be more appropriate, despite the reduced amount.

Key Factors That Affect When Should I Take Social Security Results

Several critical factors influence the optimal claiming decision and the results from the When Should I Take Social Security Calculator:

  1. Life Expectancy: This is perhaps the most significant factor. If you live longer than average, delaying benefits to receive larger monthly payments becomes more financially advantageous. Conversely, if you have reason to believe you'll have a shorter lifespan, claiming earlier might result in receiving a similar or greater total amount.
  2. Full Retirement Age (FRA): Your FRA dictates the baseline for calculating reductions or increases. Knowing your specific FRA based on your birth year is fundamental to all calculations.
  3. Estimated Benefit at FRA: A higher base benefit at FRA will result in larger absolute dollar amounts whether you claim early, at FRA, or late. This figure is based on your lifetime earnings history.
  4. Cost-of-Living Adjustments (COLA): Social Security benefits are typically adjusted annually for inflation. Higher COLAs increase the value of your benefits over time, making delayed claiming potentially more lucrative in the long run. The calculator's assumed COLA is a key input.
  5. Inflation Rate: While COLA adjusts your Social Security benefit, general inflation affects the purchasing power of your money. Higher inflation erodes the value of savings and fixed incomes, making the guaranteed, inflation-adjusted nature of Social Security more valuable, especially if claimed later.
  6. Health Status and Longevity Expectations: Personal health and family history play a huge role. If you have chronic health issues or a family history of shorter lifespans, claiming earlier might be a practical choice.
  7. Spousal/Survivor Benefits: The claiming decision impacts not only your own benefit but also potential benefits for a spouse or survivor. Coordinating claiming strategies can maximize household benefits.
  8. Other Retirement Income Sources: If you have substantial savings, pensions, or continue working, you might be able to afford to delay Social Security to secure a higher benefit later. If Social Security is your primary income source, you may need to claim earlier.
  9. Tax Implications: A portion of Social Security benefits can be subject to federal income tax, depending on your total income. Claiming larger benefits later could increase your tax liability in retirement.
  10. Need for Immediate Income: For many, the primary driver is the need for income to cover living expenses. If you stop working before FRA and lack sufficient savings, you may have no choice but to claim early.

Frequently Asked Questions (FAQ)

Q1: What is the earliest age I can claim Social Security?
A1: The earliest age you can claim Social Security retirement benefits is 62. However, claiming before your Full Retirement Age (FRA) will result in a permanently reduced monthly benefit.
Q2: What is my Full Retirement Age (FRA)?
A2: Your FRA depends on your year of birth. For those born between 1943 and 1959, it ranges from 66 to 67. For those born in 1960 or later, the FRA is 67. You can find your specific FRA on the Social Security Administration's website or by using our calculator's input.
Q3: How much is my benefit reduced if I claim early?
A3: The reduction depends on how early you claim. For each month you claim before your FRA, your benefit is reduced by approximately 5/9 of 1% (up to 36 months), and 5/12 of 1% for additional months. Claiming at 62 can reduce your benefit by up to 30% compared to your FRA amount.
Q4: How much does my benefit increase if I delay past my FRA?
A4: For each month you delay claiming past your FRA, up to age 70, you earn Delayed Retirement Credits (DRCs). For those born 1943 or later, this amounts to an 8% increase per year of delay. Delaying until 70 can significantly increase your monthly benefit compared to claiming at FRA.
Q5: Does my Social Security benefit increase with inflation?
A5: Yes, Social Security benefits typically receive an annual Cost-of-Living Adjustment (COLA) to help them keep pace with inflation. The amount of the COLA varies each year based on economic conditions.
Q6: Should I claim Social Security even if I plan to keep working?
A6: You can, but if you claim before your FRA and continue to work, your benefits may be temporarily withheld if your earnings exceed certain limits. Once you reach FRA, there is no earnings limit. It's important to understand these rules to avoid unexpected benefit reductions.
Q7: How does my spouse's benefit factor into my decision?
A7: If you are married, your claiming decision can affect the benefits your spouse receives (as a spousal benefit or survivor benefit). Often, strategies involve one spouse claiming earlier while the other delays to maximize the eventual survivor benefit.
Q8: What if I have a pension or other retirement income?
A8: Other income sources can provide flexibility. If you have a pension or significant savings, you might be able to delay Social Security to secure a larger, inflation-adjusted benefit later in retirement. If Social Security is your main income source, claiming earlier might be necessary.
Q9: Can I change my claiming age after I start receiving benefits?
A9: It's possible to change your decision within the first 12 months of receiving benefits, but you would have to repay all benefits received. After 12 months, changing your decision is generally not allowed, though you can suspend benefits at FRA to earn delayed retirement credits up to age 70.

Related Tools and Internal Resources

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Disclaimer: This calculator provides estimates for educational purposes only and does not constitute financial advice. Consult with a qualified financial professional before making any decisions regarding your Social Security benefits.

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var chart; var chartContext = document.getElementById('benefitChart').getContext('2d'); function getFRA(birthYear) { if (birthYear >= 1930 && birthYear = 1938 && birthYear = 1943 && birthYear = 1955 && birthYear = 1960) return 67; return 66; // Default for years outside range, though input limits this } function formatCurrency(amount) { if (isNaN(amount) || amount === null) return "–"; return "$" + amount.toFixed(2).replace(/\d(?=(\d{3})+\.)/g, '$&,'); } function formatNumber(num) { if (isNaN(num) || num === null) return "–"; return num.toFixed(2).replace(/\d(?=(\d{3})+\.)/g, '$&,'); } function calculateSocialSecurity() { // Clear previous errors document.getElementById('birthYearError').textContent = "; document.getElementById('estimatedMonthlyBenefitAtFRAError').textContent = "; document.getElementById('lifeExpectancyError').textContent = "; document.getElementById('annualInflationRateError').textContent = "; document.getElementById('colaPercentageError').textContent = "; document.getElementById('claimingAgeError').textContent = "; var birthYear = parseInt(birthYearInput.value); var estimatedMonthlyBenefitAtFRA = parseFloat(estimatedMonthlyBenefitAtFRAInput.value); var lifeExpectancy = parseInt(lifeExpectancyInput.value); var annualInflationRate = parseFloat(annualInflationRateInput.value) / 100; var colaPercentage = parseFloat(colaPercentageInput.value) / 100; var claimingAge = parseInt(claimingAgeInput.value); // Input validation if (isNaN(birthYear) || birthYear 2024) { document.getElementById('birthYearError').textContent = 'Please enter a valid year of birth.'; return; } if (isNaN(estimatedMonthlyBenefitAtFRA) || estimatedMonthlyBenefitAtFRA < 0) { document.getElementById('estimatedMonthlyBenefitAtFRAError').textContent = 'Please enter a valid benefit amount.'; return; } if (isNaN(lifeExpectancy) || lifeExpectancy 120) { document.getElementById('lifeExpectancyError').textContent = 'Please enter a life expectancy between 60 and 120 years.'; return; } if (isNaN(annualInflationRate * 100) || annualInflationRate 0.10) { document.getElementById('annualInflationRateError').textContent = 'Please enter an inflation rate between 0% and 10%.'; return; } if (isNaN(colaPercentage) || colaPercentage 0.10) { document.getElementById('colaPercentageError').textContent = 'Please enter a COLA between 0% and 10%.'; return; } if (isNaN(claimingAge) || claimingAge 70) { document.getElementById('claimingAgeError').textContent = 'Please select a valid claiming age.'; return; } var fra = getFRA(birthYear); var fraMonths = Math.round((fra – Math.floor(fra)) * 12); var fraYear = Math.floor(fra); var claimingAgeMonths = claimingAge * 12; var fraTotalMonths = fraYear * 12 + fraMonths; var monthlyBenefitAtClaimAge; var benefitReductionFactor = 0; var benefitIncreaseFactor = 0; if (claimingAgeMonths fraTotalMonths) { // Claiming late var lateMonths = claimingAgeMonths – fraTotalMonths; benefitIncreaseFactor = lateMonths * 0.00667; // 8% per year monthlyBenefitAtClaimAge = estimatedMonthlyBenefitAtFRA * (1 + benefitIncreaseFactor); } else { // Claiming at FRA monthlyBenefitAtClaimAge = estimatedMonthlyBenefitAtFRA; } // Cap benefit at age 70 increase if (claimingAge > 70) { monthlyBenefitAtClaimAge = estimatedMonthlyBenefitAtFRA * (1 + (12 * (70 – fra)) * 0.00667); } // Ensure benefit is not negative if (monthlyBenefitAtClaimAge < 0) monthlyBenefitAtClaimAge = 0; var totalLifetimeBenefits = 0; var currentMonthlyBenefit = monthlyBenefitAtClaimAge; var yearsToProject = lifeExpectancy – claimingAge; for (var i = 0; i < yearsToProject; i++) { var annualBenefit = currentMonthlyBenefit * 12; totalLifetimeBenefits += annualBenefit; // Apply COLA and inflation for the next year's benefit currentMonthlyBenefit *= (1 + colaPercentage); // COLA applied first currentMonthlyBenefit *= (1 + annualInflationRate); // Then inflation affects purchasing power, but SS adjusts for it via COLA // Simplified: Assume COLA is the primary adjustment for SS benefits. Inflation affects purchasing power of non-SS income. // For simplicity in this model, we'll apply COLA to the benefit itself. // A more complex model might adjust purchasing power separately. // Let's refine: COLA adjusts the nominal benefit. Inflation affects purchasing power. // For total lifetime benefit calculation, we should project the nominal benefit adjusted by COLA. // The 'inflation' input here might be better interpreted as 'purchasing power erosion' if COLA is fixed. // Let's assume COLA is the direct adjustment to the SS benefit. // Re-calculating total lifetime benefits with just COLA for simplicity and common interpretation. } // Recalculate total lifetime benefits using COLA only for the benefit amount totalLifetimeBenefits = 0; currentMonthlyBenefit = monthlyBenefitAtClaimAge; for (var i = 0; i 0 ? " and " + fraMonths + " months" : ""); totalLifetimeBenefitsSpan.textContent = formatCurrency(totalLifetimeBenefits); assumedInflationSpan.textContent = "Assumed Annual Inflation: " + (annualInflationRate * 100).toFixed(1) + "%"; assumedCOLASpan.textContent = "Assumed Annual COLA: " + (colaPercentage * 100).toFixed(1) + "%"; projectedLifespanSpan.textContent = "Projected Lifespan: " + lifeExpectancy + " years"; updateChart(birthYear, estimatedMonthlyBenefitAtFRA, colaPercentage, annualInflationRate, fra, claimingAge); populateBenefitTable(birthYear, estimatedMonthlyBenefitAtFRA, colaPercentage, annualInflationRate, fra); } function updateChart(birthYear, estimatedMonthlyBenefitAtFRA, colaPercentage, annualInflationRate, fra, selectedClaimingAge) { var years = []; var monthlyBenefitsSelectedAge = []; var monthlyBenefitsFRA = []; var monthlyBenefits70 = []; // Benefit at age 70 var fraTotalMonths = Math.floor(fra) * 12 + Math.round((fra – Math.floor(fra)) * 12); var claimingAge70 = 70; var claimingAge70Months = claimingAge70 * 12; var fraMonthsFor70 = Math.max(0, claimingAge70Months – fraTotalMonths); var benefitIncreaseFactor70 = fraMonthsFor70 * 0.00667; var monthlyBenefitAt70 = estimatedMonthlyBenefitAtFRA * (1 + benefitIncreaseFactor70); var maxYear = parseInt(lifeExpectancyInput.value); var startYear = parseInt(birthYearInput.value) + parseInt(claimingAgeInput.value); // Approximate start year for selected age // Determine the earliest year to start charting (e.g., age 62 or FRA) var earliestChartYear = parseInt(birthYearInput.value) + 62; var chartYearsCount = maxYear – earliestChartYear + 1; for (var i = 0; i < chartYearsCount; i++) { var currentYear = earliestChartYear + i; years.push(currentYear); // Calculate benefit for FRA var currentAgeFRA = currentYear – parseInt(birthYearInput.value); var fraTotalMonthsForCalc = Math.floor(fra) * 12 + Math.round((fra – Math.floor(fra)) * 12); var currentAgeTotalMonths = currentAgeFRA * 12; var monthsDiffFRA = currentAgeTotalMonths – fraTotalMonthsForCalc; var benefitFRA; if (monthsDiffFRA 0) { benefitFRA = estimatedMonthlyBenefitAtFRA * (1 + (monthsDiffFRA * 0.00667)); if (currentAgeFRA > 70) benefitFRA = estimatedMonthlyBenefitAtFRA * (1 + (12 * (70 – Math.floor(fra))) * 0.00667); // Cap at 70 } else { benefitFRA = estimatedMonthlyBenefitAtFRA; } if (benefitFRA < 0) benefitFRA = 0; monthlyBenefitsFRA.push(benefitFRA); // Calculate benefit for selected claiming age var currentAgeTotalMonthsSelected = currentAgeFRA * 12; var monthsDiffSelected = currentAgeTotalMonthsSelected – (parseInt(claimingAgeInput.value) * 12); var benefitSelected; if (monthsDiffSelected 0) { benefitSelected = estimatedMonthlyBenefitAtFRA * (1 + (monthsDiffSelected * 0.00667)); if (currentAgeFRA > 70) benefitSelected = estimatedMonthlyBenefitAtFRA * (1 + (12 * (70 – parseInt(claimingAgeInput.value))) * 0.00667); // Cap at 70 } else { benefitSelected = estimatedMonthlyBenefitAtFRA; } if (benefitSelected < 0) benefitSelected = 0; monthlyBenefitsSelectedAge.push(benefitSelected); // Calculate benefit for age 70 var currentAgeTotalMonths70 = currentAgeFRA * 12; var monthsDiff70 = currentAgeTotalMonths70 – claimingAge70Months; var benefit70; if (monthsDiff70 < 0) { benefit70 = 0; // Cannot claim before 70 if targeting 70 } else { benefit70 = monthlyBenefitAt70; // Benefit is fixed after 70 if claimed at 70 } if (benefit70 0 ? 'y ' + Math.round((fra – Math.floor(fra)) * 12) + 'm' : ") + ')', data: monthlyBenefitsFRA, borderColor: '#ffc107', backgroundColor: 'rgba(255, 193, 7, 0.1)', fill: false, tension: 0.1 }, { label: 'Benefit at Age 70', data: monthlyBenefits70, borderColor: '#28a745', backgroundColor: 'rgba(40, 167, 69, 0.1)', fill: false, tension: 0.1 } ] }, options: { responsive: true, maintainAspectRatio: false, scales: { x: { title: { display: true, text: 'Year' } }, y: { title: { display: true, text: 'Monthly Benefit ($)' }, beginAtZero: true } }, plugins: { tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || "; if (label) { label += ': '; } if (context.parsed.y !== null) { label += formatCurrency(context.parsed.y); } return label; } } } } } }); } function populateBenefitTable(birthYear, estimatedMonthlyBenefitAtFRA, colaPercentage, annualInflationRate, fra) { var tableHtml = "; var claimingAgesToCompare = [62, Math.floor(fra), Math.ceil(fra), 70]; // Compare key ages for (var i = 0; i < claimingAgesToCompare.length; i++) { var currentClaimingAge = claimingAgesToCompare[i]; if (currentClaimingAge 70) continue; // Only consider valid ages var claimingAgeMonths = currentClaimingAge * 12; var fraTotalMonths = Math.floor(fra) * 12 + Math.round((fra – Math.floor(fra)) * 12); var monthlyBenefit; var benefitReductionFactor = 0; var benefitIncreaseFactor = 0; if (claimingAgeMonths fraTotalMonths) { // Claiming late var lateMonths = claimingAgeMonths – fraTotalMonths; benefitIncreaseFactor = lateMonths * 0.00667; monthlyBenefit = estimatedMonthlyBenefitAtFRA * (1 + benefitIncreaseFactor); if (currentClaimingAge > 70) monthlyBenefit = estimatedMonthlyBenefitAtFRA * (1 + (12 * (70 – Math.floor(fra))) * 0.00667); // Cap at 70 } else { // Claiming at FRA monthlyBenefit = estimatedMonthlyBenefitAtFRA; } if (monthlyBenefit < 0) monthlyBenefit = 0; var totalLifetimeBenefits = 0; var currentMonthlyBenefit = monthlyBenefit; var yearsToProject = parseInt(lifeExpectancyInput.value) – currentClaimingAge; for (var j = 0; j < yearsToProject; j++) { totalLifetimeBenefits += currentMonthlyBenefit * 12; currentMonthlyBenefit *= (1 + colaPercentage); // Apply COLA } tableHtml += ''; tableHtml += '' + currentClaimingAge + ''; tableHtml += '' + formatCurrency(monthlyBenefit) + ''; tableHtml += '' + formatCurrency(totalLifetimeBenefits) + ''; tableHtml += ''; } benefitTableBody.innerHTML = tableHtml; } function resetForm() { birthYearInput.value = '1960'; estimatedMonthlyBenefitAtFRAInput.value = '2000'; lifeExpectancyInput.value = '85'; annualInflationRateInput.value = '3'; colaPercentageInput.value = '2'; claimingAgeInput.value = '67'; // Default to FRA // Clear errors document.getElementById('birthYearError').textContent = "; document.getElementById('estimatedMonthlyBenefitAtFRAError').textContent = "; document.getElementById('lifeExpectancyError').textContent = "; document.getElementById('annualInflationRateError').textContent = "; document.getElementById('colaPercentageError').textContent = "; document.getElementById('claimingAgeError').textContent = "; calculateSocialSecurity(); // Recalculate with defaults } function copyResults() { var primaryResult = primaryResultDiv.textContent; var fraResult = fraResultSpan.textContent; var monthlyBenefitResult = monthlyBenefitAtClaimAgeSpan.textContent; var totalLifetimeResult = totalLifetimeBenefitsSpan.textContent; var inflationAssumption = assumedInflationSpan.textContent; var colaAssumption = assumedCOLASpan.textContent; var lifespanAssumption = projectedLifespanSpan.textContent; var resultText = "Social Security Benefit Projections:\n\n"; resultText += "Primary Result (Monthly Benefit at Age " + document.getElementById('claimingAge').value + "): " + primaryResult + "\n"; resultText += fraResult + "\n"; resultText += monthlyBenefitResult + "\n"; resultText += totalLifetimeResult + "\n\n"; resultText += "Key Assumptions:\n"; resultText += inflationAssumption + "\n"; resultText += colaAssumption + "\n"; resultText += lifespanAssumption + "\n"; // Copy to clipboard var textArea = document.createElement("textarea"); textArea.value = resultText; document.body.appendChild(textArea); textArea.select(); try { document.execCommand('copy'); alert("Results copied to clipboard!"); } catch (err) { console.error('Unable to copy results. ', err); alert("Failed to copy results. Please copy manually."); } document.body.removeChild(textArea); } // Initial calculation on page load document.addEventListener('DOMContentLoaded', function() { // Ensure Chart.js is loaded before trying to use it if (typeof Chart !== 'undefined') { calculateSocialSecurity(); } else { // Fallback or error message if Chart.js is not available console.error("Chart.js library not found. Chart will not render."); // Optionally, hide the chart canvas or display a message document.getElementById('chartContainer').style.display = 'none'; } }); // Add Chart.js library dynamically if not present if (typeof Chart === 'undefined') { var script = document.createElement('script'); script.src = 'https://cdn.jsdelivr.net/npm/chart.js'; script.onload = function() { console.log("Chart.js loaded successfully."); // Recalculate now that Chart.js is available calculateSocialSecurity(); }; script.onerror = function() { console.error("Failed to load Chart.js library."); document.getElementById('chartContainer').style.display = 'none'; // Hide chart if library fails to load }; document.head.appendChild(script); }

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