Rent Subsidy Eligibility Calculator
ANA›Life Services Authority›National Calculator Authority›Rent Subsidy Eligibility Calculator
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Rent Subsidy Eligibility Calculator
Estimate your eligibility for rent subsidy assistance (Section 8 / Housing Choice Voucher Program) based on your household income, size, and local fair market rent. Results are estimates only — contact your local Public Housing Authority (PHA) for official determination.
Household Size (persons)
Annual Gross Household Income ($)
Actual Monthly Rent ($)
Area Median Income — AMI ($, annual)
Find your area's AMI at HUD Income Limits.
Fair Market Rent — FMR (monthly, $)
Find your area's FMR at HUD Fair Market Rents.
Monthly Utility Allowance ($, if tenant pays utilities)
Calculate Eligibility
function renCalc() { // --- Gather inputs --- var householdSize = parseFloat(document.getElementById('ren-household-size').value); var annualIncome = parseFloat(document.getElementById('ren-annual-income').value); var monthlyRent = parseFloat(document.getElementById('ren-monthly-rent').value); var ami = parseFloat(document.getElementById('ren-area-median-income').value); var fmr = parseFloat(document.getElementById('ren-fair-market-rent').value); var utilityAllow = parseFloat(document.getElementById('ren-utility-allowance').value) || 0;
var resultDiv = document.getElementById('ren-result'); resultDiv.style.display = 'block';
// --- Validation --- var errors = []; if (isNaN(householdSize) || householdSize 0) { resultDiv.className = 'calc-result error'; resultDiv.innerHTML = 'Please fix the following errors:' + errors.map(function(e){ return ''; }).join('') + ''; return; }
// --- HUD Income Limit Thresholds (% of AMI, adjusted for household size) --- // HUD adjusts AMI by household size using standard multipliers // Base AMI is typically for a 4-person household var sizeMultipliers = {1: 0.70, 2: 0.80, 3: 0.90, 4: 1.00, 5: 1.08, 6: 1.16, 7: 1.24, 8: 1.32}; var sizeKey = Math.min(Math.max(Math.round(householdSize), 1), 8); var sizeMultiplier = sizeMultipliers[sizeKey] || 1.32; // cap at 8+
var adjustedAMI = ami * sizeMultiplier;
// HUD income categories var extremelyLowLimit = adjustedAMI * 0.30; // 30% AMI var veryLowLimit = adjustedAMI * 0.50; // 50% AMI (primary Section 8 threshold) var lowLimit = adjustedAMI * 0.80; // 80% AMI
// --- Eligibility Determination --- // Section 8 / HCV: Must be at or below 50% AMI to qualify // By law, 75% of new vouchers must go to households at or below 30% AMI var eligible = annualIncome 0 ? (tenantShare / monthlyAdjustedIncome) * 100 : 0;
// Annual subsidy value var annualSubsidy = hap * 12;
// --- Income category label --- var incomeCategory = ''; if (annualIncome Extremely Low Income (≤30% AMI)'; } else if (annualIncome Very Low Income (31–50% AMI)'; } else if (annualIncome Low Income (51–80% AMI)'; } else { incomeCategory = 'Above Low Income (>80% AMI)'; }
// --- Build output --- resultDiv.className = 'calc-result ' + (eligible ? 'success' : 'warning');
var html = '### ' + (eligible ? '✅ Likely Eligible for Rent Subsidy' : '❌ Likely Not Eligible for Section 8 / HCV') + ' ';
html += ''; html += 'FactorValue';
html += 'Household Size' + householdSize + ' person(s)'; html += 'Annual Gross Income$' + annualIncome.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}) + ''; html += 'Size-Adjusted AMI$' + adjustedAMI.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}) + ''; html += 'Income Category' + incomeCategory + ''; html += 'Extremely Low Income Limit (30% AMI)$' + extremelyLowLimit.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}) + ''; html += 'Very Low Income Limit (50% AMI)$' + veryLowLimit.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}) + ''; html += 'Low Income Limit (80% AMI)$' + lowLimit.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}) + '';
if (eligible) { html += 'Fair Market Rent (FMR)$' + fmr.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}) + '/mo'; html += 'Gross Rent (Rent + Utilities)$' + grossRent.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}) + '/mo'; html += 'Tenant Total Payment (TTP)$' + ttp.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}) + '/mo'; html += 'Estimated Housing Assistance Payment (HAP)$' + hap.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}) + '/mo'; html += 'Estimated Annual Subsidy Value$' + annualSubsidy.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}) + '/yr'; html += 'Your Share of Rent$' + tenantShare.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}) + '/mo'; html += 'Rent Burden Before Subsidy' + rentBurdenBefore.toFixed(1) + '% of monthly income'; html += 'Rent Burden After Subsidy' + rentBurdenAfter.toFixed(1) + '% of monthly income';
if (priorityEligible) { html += '⚠️ Priority Status: Your income is at or below 30% AMI. By law, 75% of new HCV vouchers must be issued to households in this category — you have priority placement.'; }
if (grossRent > fmr * 1.10) { html += '⚠️ Your gross rent exceeds 110% of FMR. PHAs generally will not approve units above this threshold. You may need to find a lower-cost unit or negotiate rent with your landlord.'; } } else { html += 'Your income ($' + annualIncome.toLocaleString() + ') exceeds the Very Low Income limit of $' + veryLowLimit.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}) + ' (50% of size-adjusted AMI). You do not qualify for Section 8 / HCV at this income level. You may qualify for other rental assistance programs — contact your local PHA or 211 helpline.'; }
html += '';
html += '⚠️ This is an estimate only. Actual eligibility and subsidy amounts depend on PHA-specific payment standards, deductions (dependents, disabilities, medical expenses), waiting list availability, and unit inspection approval. Contact your local PHA for an official determination.
';
resultDiv.innerHTML = html; }
#### Formulas Used
1. Size-Adjusted AMI: Adjusted AMI = Published AMI × Size Multiplier (Multipliers: 1-person=70%, 2=80%, 3=90%, 4=100%, 5=108%, 6=116%, 7=124%, 8+=132%)
2. Income Limits: Extremely Low Income = Adjusted AMI × 30% Very Low Income = Adjusted AMI × 50% ← Section 8 / HCV eligibility threshold Low Income = Adjusted AMI × 80%
3. Gross Rent: Gross Rent = Monthly Rent + Utility Allowance
4. Tenant Total Payment (TTP): TTP = max(30% × Monthly Adjusted Income, 10% × Monthly Gross Income, $50 minimum rent)
5. Housing Assistance Payment (HAP): Effective Payment Standard = min(FMR, Gross Rent) HAP = max(0, Effective Payment Standard − TTP)
6. Tenant's Share: Tenant Share = Gross Rent − HAP
7. Rent Burden: Rent Burden = (Monthly Housing Cost ÷ Monthly Income) × 100% (HUD considers >30% cost-burdened; >50% severely cost-burdened)
#### Assumptions & References
- Eligibility is based on the Section 8 Housing Choice Voucher (HCV) Program under 42 U.S.C. § 1437f and 24 CFR Part 982.
- The primary income eligibility threshold is 50% of Area Median Income (AMI), adjusted for household size. By law, 75% of new vouchers must go to households at or below 30% AMI.
- The Payment Standard is assumed equal to 100% of FMR. PHAs may set payment standards between 90% and 110% of FMR (24 CFR § 982.503).
- The Tenant Total Payment (TTP) formula follows 24 CFR § 982.305 and § 5.628. This calculator uses gross income as a proxy for adjusted income; actual adjusted income accounts for deductions (dependents: $480/child, elderly/disabled: $400, medical expenses exceeding 3% of income, childcare costs).
- AMI data source: HUD Income Limits Dataset.
- FMR data source: HUD Fair Market Rents Dataset.
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