Back Rent Owed Calculator
ANA›Life Services Authority›National Calculator Authority›Back Rent Owed Calculator
.calc-container { max-width: 640px; margin: 2rem 0; padding: 1.5rem; background: #fff; border: 1px solid #ddd; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); font-family: system-ui, -apple-system, sans-serif; } .calc-container h3 { font-family: Georgia, serif; font-size: 1.15rem; color: #1a1a1a; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; } .calc-row label { min-width: 160px; font-size: 0.9rem; color: #333; font-weight: 500; } .calc-row input[type="number"], .calc-row select { flex: 1; min-width: 120px; max-width: 200px; padding: 0.5rem 0.6rem; border: 1px solid #ccc; border-radius: 4px; font-size: 0.9rem; font-family: system-ui, sans-serif; color: #1a1a1a; background: #fafaf8; } .calc-row input:focus, .calc-row select:focus { outline: none; border-color: var(--ac, #3d5a80); box-shadow: 0 0 0 2px rgba(26,74,138,0.12); } .calc-row .unit { font-size: 0.82rem; color: #888; min-width: 30px; } .calc-btn { display: inline-block; margin-top: 0.5rem; padding: 0.55rem 1.5rem; background: var(--ac, #3d5a80); color: #fff; border: none; border-radius: 4px; font-size: 0.9rem; font-weight: 600; cursor: pointer; font-family: system-ui, sans-serif; } .calc-btn:hover { opacity: 0.9; } .calc-result { margin-top: 1.25rem; padding: 1rem 1.25rem; background: #f0f6fc; border-left: 3px solid var(--ac, #3d5a80); border-radius: 0 6px 6px 0; display: none; } .calc-result.visible { display: block; } .calc-result-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: #666; margin-bottom: 0.25rem; } .calc-result-value { font-size: 1.6rem; font-weight: 700; color: var(--ac, #3d5a80); } .calc-result-detail { font-size: 0.85rem; color: #555; margin-top: 0.5rem; line-height: 1.5; } .calc-note { margin-top: 1rem; font-size: 0.8rem; color: #888; font-style: italic; } .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 0.75rem; } .calc-grid-item { padding: 0.6rem 0.8rem; background: #f8f9fa; border-radius: 4px; border: 1px solid #eee; } .calc-grid-item .label { font-size: 0.75rem; color: #888; text-transform: uppercase; letter-spacing: 0.04em; } .calc-grid-item .value { font-size: 1.1rem; font-weight: 600; color: #1a1a1a; } @media (max-width: 720px) { .calc-row { flex-direction: column; align-items: flex-start; gap: 0.3rem; } .calc-row label { min-width: auto; } .calc-row input[type="number"], .calc-row select { max-width: 100%; width: 100%; } .calc-grid { grid-template-columns: 1fr; } } .calc-chart { margin: 1rem 0; text-align: center; } .calc-chart svg { max-width: 100%; height: auto; } .calc-chart-legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem 1.2rem; margin-top: 0.6rem; font-size: 0.8rem; color: #555; } .calc-chart-legend span { display: inline-flex; align-items: center; gap: 0.3rem; } .calc-chart-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; font-style: normal; } .calc-related { max-width: 640px; margin: 2rem 0 1rem; padding: 1.25rem 1.5rem; background: #f8f9fa; border: 1px solid #e8e8e8; border-radius: 8px; } .calc-related h3 { font-family: Georgia, serif; font-size: 1rem; color: #1a1a1a; margin: 0 0 0.75rem; padding-bottom: 0.4rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-related-list { list-style: none; padding: 0; margin: 0 0 0.75rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem 1.5rem; } .calc-related-list li a { font-size: 0.88rem; color: var(--ac, #3d5a80); text-decoration: none; } .calc-related-list li a:hover { text-decoration: underline; } .calc-browse-all { margin: 0.5rem 0 0; font-size: 0.9rem; font-weight: 600; } .calc-browse-all a { color: var(--ac, #3d5a80); text-decoration: none; } .calc-browse-all a:hover { text-decoration: underline; } @media (max-width: 720px) { .calc-related-list { grid-template-columns: 1fr; } }
Back Rent Owed Calculator
Calculate the total amount of back rent owed, including any applicable late fees and daily interest accrued over the missed payment period.
Monthly Rent Amount ($)
Number of Months Missed
Partial Payments Already Made ($)
Late Fee Per Month ($)
Annual Interest Rate on Unpaid Rent (%)
Total Days Overdue (for interest calculation)
Calculate
function bacCalc() { var resultDiv = document.getElementById('bac-result'); resultDiv.style.display = 'none'; resultDiv.innerHTML = '';
var monthlyRent = parseFloat(document.getElementById('bac-monthly-rent').value); var monthsMissed = parseFloat(document.getElementById('bac-months-missed').value); var partialPaid = parseFloat(document.getElementById('bac-partial-paid').value) || 0; var lateFeePerMonth= parseFloat(document.getElementById('bac-late-fee').value) || 0; var annualRate = parseFloat(document.getElementById('bac-annual-interest').value)|| 0; var daysOverdue = parseFloat(document.getElementById('bac-days-overdue').value) || 0;
// --- Validation --- var errors = []; if (isNaN(monthlyRent) || monthlyRent 100) errors.push("Annual interest rate must be between 0 and 100."); if (daysOverdue 0) { resultDiv.style.display = 'block'; resultDiv.innerHTML = 'Please fix the following:' + errors.map(function(e){ return ''; }).join('') + ''; return; }
// --- Core Formula --- // 1. Gross Rent Owed = Monthly Rent × Months Missed var grossRent = monthlyRent * monthsMissed;
// 2. Total Late Fees = Late Fee Per Month × Months Missed var totalLateFees = lateFeePerMonth * monthsMissed;
// 3. Net Unpaid Principal = Gross Rent Owed − Partial Payments Already Made var netUnpaid = grossRent - partialPaid; if (netUnpaid ' + 'Gross Rent Owed' + fmt(grossRent) + '' + 'Less: Partial Payments Made− ' + fmt(partialPaid) + '' + 'Net Unpaid Principal' + fmt(netUnpaid) + '' + 'Total Late Fees (' + monthsMissed + ' × ' + fmt(lateFeePerMonth) + ')' + fmt(totalLateFees) + '' + 'Interest Accrued (' + annualRate.toFixed(2) + '% / yr × ' + daysOverdue + ' days)' + fmt(interestAccrued) + '' + '' + 'Total Back Rent Owed' + '' + fmt(totalOwed) + '' + '' + ''; }
#### Formula
Gross Rent Owed = Monthly Rent × Months Missed Net Unpaid Principal = Gross Rent Owed − Partial Payments Made Total Late Fees = Late Fee Per Month × Months Missed Daily Interest Rate = Annual Interest Rate ÷ 365 Interest Accrued = Net Unpaid Principal × Daily Interest Rate × Days Overdue Total Back Rent Owed = Net Unpaid Principal + Total Late Fees + Interest Accrued
#### Assumptions & References
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