{"product_id":"partially-amortized-loan","title":"Partially Amortized Loan Calculator","description":"\u003cstyle\u003e\n.pal-calculator{--ink:#0f172a;--muted:#475569;--border:#e2e8f0;--surface:#ffffff;--tint:#f8fafc;--primary:#1d4ed8;--accent:#c2410c;--accent-hover:#9a3412;--chart-1:#1e40af;--chart-2:#0d9488;--chart-3:#7c3aed;--chart-4:#be185d;--chart-5:#334155;container-type:inline-size;color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,\"Segoe UI\",sans-serif;font-size:15px;line-height:1.55;max-width:1200px;margin:0 auto;padding:16px;background:var(--tint);border:1px solid var(--border);border-radius:8px}\n.pal-calculator,.pal-calculator *,.pal-calculator *::before,.pal-calculator *::after{box-sizing:border-box}\n.pal-calculator *{min-width:0}\n.pal-calculator h2,.pal-calculator h3,.pal-calculator p{margin-top:0}\n.pal-calculator h2{font-size:24px;line-height:1.25;font-weight:700;margin-bottom:8px;letter-spacing:-.02em}\n.pal-calculator h3{font-size:18px;line-height:1.35;font-weight:650;margin-bottom:12px}\n.pal-header{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:24px;box-shadow:0 1px 2px rgba(15,23,42,.06)}\n.pal-subtitle{color:var(--muted);margin-bottom:16px;max-width:760px}\n.pal-pills{display:flex;flex-wrap:wrap;gap:8px}\n.pal-pill{display:inline-flex;align-items:center;gap:6px;min-height:32px;padding:6px 10px;border:1px solid var(--border);border-radius:999px;background:var(--tint);font-size:13px;font-weight:600;color:var(--muted);font-variant-numeric:tabular-nums}\n.pal-pill strong{color:var(--ink)}\n.pal-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin:16px 0}\n.pal-btn{appearance:none;border:1px solid transparent;border-radius:6px;min-height:44px;padding:11px 18px;font:600 15px\/1.2 inherit;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:10px;transition:background-color .15s ease,border-color .15s ease,box-shadow .15s ease,transform .15s ease;white-space:nowrap}\n.pal-btn:hover{box-shadow:0 2px 5px rgba(15,23,42,.12)}\n.pal-btn:active{transform:translateY(1px)}\n.pal-btn:focus-visible,.pal-input:focus-visible,.pal-select:focus-visible,.pal-link:focus-visible{outline:3px solid rgba(29,78,216,.34);outline-offset:2px}\n.pal-download{background:var(--accent);color:#fff;border-color:var(--accent)}\n.pal-download:hover{background:var(--accent-hover);border-color:var(--accent-hover)}\n.pal-reset{background:var(--surface);color:var(--ink);border-color:#94a3b8}\n.pal-reset:hover{background:#f1f5f9;border-color:#64748b}\n.pal-icon{width:18px;height:18px;display:block;flex:0 0 auto}\n.pal-workspace{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;align-items:start}\n.pal-panel,.pal-card,.pal-chart-card,.pal-table-card,.pal-education{background:var(--surface);border:1px solid var(--border);border-radius:8px;box-shadow:0 1px 2px rgba(15,23,42,.06)}\n.pal-panel,.pal-card,.pal-chart-card,.pal-table-card{padding:20px}\n.pal-form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px}\n.pal-field{display:flex;flex-direction:column;gap:6px}\n.pal-label{font-size:14px;font-weight:600;color:var(--ink)}\n.pal-control-wrap{position:relative}\n.pal-input,.pal-select{width:100%;min-height:44px;border:1px solid #94a3b8;border-radius:6px;background:#fff;color:var(--ink);font:400 15px\/1.2 inherit;padding:10px 12px;font-variant-numeric:tabular-nums}\n.pal-input:hover,.pal-select:hover{border-color:#64748b}\n.pal-helper,.pal-error,.pal-caption,.pal-table-note{font-size:13px;line-height:1.45;font-weight:500;color:var(--muted)}\n.pal-helper{min-height:38px}\n.pal-error{color:#b91c1c;min-height:19px}\n.pal-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}\n.pal-result-primary{grid-column:1\/-1;padding:18px;border:1px solid #bfdbfe;border-radius:8px;background:#eff6ff}\n.pal-result-label{font-size:13px;font-weight:600;color:var(--muted);margin-bottom:4px}\n.pal-primary-value{font-size:30px;line-height:1.2;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;overflow-wrap:anywhere}\n.pal-result-card{padding:14px;border:1px solid var(--border);border-radius:8px;background:var(--tint)}\n.pal-result-value{font-size:20px;line-height:1.25;font-weight:700;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}\n.pal-live{margin-top:12px;padding:10px 12px;border-left:3px solid var(--primary);background:#f8fafc;color:var(--muted);font-size:13px;font-weight:500}\n.pal-section{margin-top:16px}\n.pal-breakdown{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}\n.pal-metric{padding:14px;border:1px solid var(--border);border-radius:8px;background:var(--surface)}\n.pal-metric-name{font-size:13px;font-weight:600;color:var(--muted);margin-bottom:5px}\n.pal-metric-value{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums}\n.pal-meter{height:8px;border-radius:999px;background:#e2e8f0;margin-top:10px;overflow:hidden}\n.pal-meter-fill{height:100%;width:0;background:var(--chart-3);border-radius:999px;transition:width .2s ease}\n.pal-chart-head{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:16px}\n.pal-chart-intro{color:var(--muted);font-size:13px;font-weight:500;max-width:680px;margin:0}\n.pal-chart-stack{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;align-items:start}\n.pal-plot-wrap{width:100%;max-width:820px;margin:0 auto}\n.pal-chart-svg{display:block;width:100%;height:auto;min-height:270px;overflow:visible}\n.pal-chart-empty{display:none;padding:18px;border:1px dashed #94a3b8;border-radius:6px;background:var(--tint);text-align:center;color:var(--muted);font-size:13px;font-weight:600}\n.pal-legend{display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center}\n.pal-legend-row{display:grid;grid-template-columns:12px auto auto;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--muted)}\n.pal-swatch{width:12px;height:12px;border-radius:3px}\n.pal-legend-value{color:var(--ink);font-variant-numeric:tabular-nums}\n.pal-chart-data{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:8px;margin-top:16px}\n.pal-chart-data-item{padding:10px 12px;border:1px solid var(--border);border-radius:6px;background:var(--tint)}\n.pal-chart-data-label{font-size:13px;font-weight:600;color:var(--muted)}\n.pal-chart-data-value{font-size:15px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}\n.pal-chart-callout{margin-top:16px;padding:10px 12px;border:1px solid var(--border);border-radius:6px;background:#f8fafc;color:var(--muted);font-size:13px;font-weight:500}\n.pal-safe-stack .pal-chart-stack{grid-template-columns:minmax(0,1fr)!important;gap:20px!important}\n.pal-safe-stack .pal-chart-callout{margin-top:20px!important}\n.pal-table-head{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:12px;margin-bottom:14px}\n.pal-table-control{display:flex;flex-direction:column;gap:6px;min-width:180px}\n.pal-table-overflow{width:100%;overflow-x:auto;border:1px solid var(--border);border-radius:6px;background:#fff}\n.pal-table{width:100%;min-width:760px;border-collapse:collapse;font-size:13px;font-variant-numeric:tabular-nums}\n.pal-table th,.pal-table td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:right;white-space:nowrap}\n.pal-table th:first-child,.pal-table td:first-child{text-align:left}\n.pal-table th{background:#0f2747;color:#fff;font-weight:700}\n.pal-table tbody tr:hover{background:#f8fafc}\n.pal-table tbody tr:last-child td{border-bottom:0;font-weight:700}\n.pal-table-note{margin-top:16px;padding:10px 12px;border:1px solid var(--border);border-radius:6px;background:var(--tint)}\n.pal-safe-table-stack .pal-table-note{margin-top:20px!important;position:static!important;transform:none!important}\n.pal-education{padding:24px;margin-top:16px}\n.pal-education h2{margin-top:28px;font-size:21px}\n.pal-education h2:first-child{margin-top:0}\n.pal-education h3{margin-top:20px}\n.pal-education p,.pal-education li{color:#334155}\n.pal-education ul{padding-left:22px;margin:0 0 16px}\n.pal-link{color:var(--primary);text-decoration:underline;text-underline-offset:2px;font-weight:600}\n.pal-link:hover{color:#1e40af}\n.pal-formula{padding:14px;border:1px solid #cbd5e1;border-radius:6px;background:var(--tint);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;overflow-wrap:anywhere;color:#1e293b}\n.pal-visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}\n@container (min-width:900px){.pal-workspace{grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr)}.pal-results{grid-template-columns:repeat(2,minmax(0,1fr))}}\n@container (max-width:639px){.pal-calculator{padding:12px}.pal-header,.pal-panel,.pal-card,.pal-chart-card,.pal-table-card,.pal-education{padding:16px}.pal-results{grid-template-columns:minmax(0,1fr)}.pal-result-primary{grid-column:auto}.pal-toolbar{align-items:stretch}.pal-btn{flex:1 1 100%}.pal-primary-value{font-size:26px}.pal-chart-svg{min-height:230px}.pal-legend{display:grid;grid-template-columns:minmax(0,1fr);gap:8px}.pal-legend-row{grid-template-columns:12px auto auto;justify-content:start}.pal-chart-callout{margin-top:16px}.pal-table-note{margin-top:14px}}\n@media (prefers-reduced-motion:reduce){.pal-calculator *{scroll-behavior:auto!important;transition:none!important}}\n\u003c\/style\u003e\n\u003cdiv class=\"pal-calculator\" data-calculator-root\u003e\n  \u003csection class=\"pal-header\"\u003e\n    \u003ch2\u003ePartially Amortized Loan Calculator\u003c\/h2\u003e\n    \u003cp class=\"pal-subtitle\"\u003eEstimate the monthly payment, balloon balance, total interest, and full cash obligation for a loan whose payment term ends before its amortization schedule.\u003c\/p\u003e\n    \u003cdiv class=\"pal-pills\" aria-label=\"Live loan summary\"\u003e\n      \u003cspan class=\"pal-pill\"\u003ePayment \u003cstrong data-pal-pill-payment\u003e—\u003c\/strong\u003e\u003c\/span\u003e\n      \u003cspan class=\"pal-pill\"\u003eBalloon \u003cstrong data-pal-pill-balloon\u003e—\u003c\/strong\u003e\u003c\/span\u003e\n      \u003cspan class=\"pal-pill\"\u003eTerm \u003cstrong data-pal-pill-term\u003e—\u003c\/strong\u003e\u003c\/span\u003e\n      \u003cspan class=\"pal-pill\"\u003eBalloon share \u003cstrong data-pal-pill-share\u003e—\u003c\/strong\u003e\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003cdiv class=\"pal-toolbar\" aria-label=\"Calculator actions\"\u003e\n    \u003cbutton class=\"pal-btn pal-download\" type=\"button\" data-pal-download\u003e\n      \u003csvg class=\"pal-icon\" viewbox=\"0 0 24 24\" aria-hidden=\"true\"\u003e\u003cpath fill=\"currentColor\" d=\"M5 2h10l4 4v16H5V2Zm9 2H7v16h10V7h-3V4Zm-3 5h2v5.17l1.59-1.58L16 14l-4 4-4-4 1.41-1.41L11 14.17V9Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n      \u003cspan\u003eDownload Excel\u003c\/span\u003e\n    \u003c\/button\u003e\n    \u003cbutton class=\"pal-btn pal-reset\" type=\"button\" data-pal-reset\u003eReset\u003c\/button\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"pal-workspace\"\u003e\n    \u003csection class=\"pal-panel\" aria-labelledby=\"pal-input-heading\"\u003e\n      \u003ch3 id=\"pal-input-heading\"\u003eLoan assumptions\u003c\/h3\u003e\n      \u003cdiv class=\"pal-form-grid\"\u003e\n        \u003cdiv class=\"pal-field\"\u003e\n          \u003clabel class=\"pal-label\" for=\"pal-loan\"\u003eFull loan amount\u003c\/label\u003e\n          \u003cdiv class=\"pal-control-wrap\"\u003e\u003cinput class=\"pal-input\" id=\"pal-loan\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" data-pal-input=\"loan\" data-pal-kind=\"currency\" value=\"$1,000,000.00\"\u003e\u003c\/div\u003e\n          \u003cdiv class=\"pal-helper\"\u003eOriginal principal advanced by the lender.\u003c\/div\u003e\n          \u003cdiv class=\"pal-error\" data-pal-error=\"loan\" aria-live=\"polite\"\u003e\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"pal-field\"\u003e\n          \u003clabel class=\"pal-label\" for=\"pal-rate\"\u003eAnnual interest rate\u003c\/label\u003e\n          \u003cdiv class=\"pal-control-wrap\"\u003e\u003cinput class=\"pal-input\" id=\"pal-rate\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" data-pal-input=\"rate\" data-pal-kind=\"percent\" value=\"10.00%\"\u003e\u003c\/div\u003e\n          \u003cdiv class=\"pal-helper\"\u003eNominal annual rate divided into monthly periods.\u003c\/div\u003e\n          \u003cdiv class=\"pal-error\" data-pal-error=\"rate\" aria-live=\"polite\"\u003e\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"pal-field\"\u003e\n          \u003clabel class=\"pal-label\" for=\"pal-amortization\"\u003eAmortization time\u003c\/label\u003e\n          \u003cdiv class=\"pal-control-wrap\"\u003e\u003cinput class=\"pal-input\" id=\"pal-amortization\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" data-pal-input=\"amortization\" data-pal-kind=\"years\" value=\"30\"\u003e\u003c\/div\u003e\n          \u003cdiv class=\"pal-helper\"\u003eYears used to calculate the regular payment.\u003c\/div\u003e\n          \u003cdiv class=\"pal-error\" data-pal-error=\"amortization\" aria-live=\"polite\"\u003e\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"pal-field\"\u003e\n          \u003clabel class=\"pal-label\" for=\"pal-term\"\u003ePayment period\u003c\/label\u003e\n          \u003cdiv class=\"pal-control-wrap\"\u003e\u003cinput class=\"pal-input\" id=\"pal-term\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" data-pal-input=\"term\" data-pal-kind=\"years\" value=\"10\"\u003e\u003c\/div\u003e\n          \u003cdiv class=\"pal-helper\"\u003eYears of regular payments before the balloon is due.\u003c\/div\u003e\n          \u003cdiv class=\"pal-error\" data-pal-error=\"term\" aria-live=\"polite\"\u003e\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/section\u003e\n\n    \u003csection class=\"pal-panel\" aria-labelledby=\"pal-results-heading\"\u003e\n      \u003ch3 id=\"pal-results-heading\"\u003eLive results\u003c\/h3\u003e\n      \u003cdiv class=\"pal-results\"\u003e\n        \u003cdiv class=\"pal-result-primary\"\u003e\n          \u003cdiv class=\"pal-result-label\"\u003eMonthly payment\u003c\/div\u003e\n          \u003cdiv class=\"pal-primary-value\" data-pal-output=\"payment\"\u003e—\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"pal-result-card\"\u003e\n          \u003cdiv class=\"pal-result-label\"\u003eBalloon payment\u003c\/div\u003e\n          \u003cdiv class=\"pal-result-value\" data-pal-output=\"balloon\"\u003e—\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"pal-result-card\"\u003e\n          \u003cdiv class=\"pal-result-label\"\u003eTotal regular payments\u003c\/div\u003e\n          \u003cdiv class=\"pal-result-value\" data-pal-output=\"regularTotal\"\u003e—\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"pal-result-card\"\u003e\n          \u003cdiv class=\"pal-result-label\"\u003eTotal paid including balloon\u003c\/div\u003e\n          \u003cdiv class=\"pal-result-value\" data-pal-output=\"totalPaid\"\u003e—\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"pal-result-card\"\u003e\n          \u003cdiv class=\"pal-result-label\"\u003eTotal interest cost\u003c\/div\u003e\n          \u003cdiv class=\"pal-result-value\" data-pal-output=\"totalInterest\"\u003e—\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pal-live\" aria-live=\"polite\" data-pal-live\u003eEnter valid loan assumptions to calculate the payment and balloon balance.\u003c\/div\u003e\n    \u003c\/section\u003e\n  \u003c\/div\u003e\n\n  \u003csection class=\"pal-card pal-section\" aria-labelledby=\"pal-breakdown-heading\"\u003e\n    \u003ch3 id=\"pal-breakdown-heading\"\u003eRepayment profile\u003c\/h3\u003e\n    \u003cdiv class=\"pal-breakdown\"\u003e\n      \u003cdiv class=\"pal-metric\"\u003e\n\u003cdiv class=\"pal-metric-name\"\u003ePrincipal repaid during term\u003c\/div\u003e\n\u003cdiv class=\"pal-metric-value\" data-pal-output=\"principalRepaid\"\u003e—\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"pal-metric\"\u003e\n\u003cdiv class=\"pal-metric-name\"\u003eInterest paid during term\u003c\/div\u003e\n\u003cdiv class=\"pal-metric-value\" data-pal-output=\"interestDuringTerm\"\u003e—\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"pal-metric\"\u003e\n\u003cdiv class=\"pal-metric-name\"\u003eBalloon as % of original loan\u003c\/div\u003e\n\u003cdiv class=\"pal-metric-value\" data-pal-output=\"balloonShare\"\u003e—\u003c\/div\u003e\n\u003cdiv class=\"pal-meter\" aria-hidden=\"true\"\u003e\u003cdiv class=\"pal-meter-fill\" data-pal-meter\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"pal-metric\"\u003e\n\u003cdiv class=\"pal-metric-name\"\u003eScheduled payment count\u003c\/div\u003e\n\u003cdiv class=\"pal-metric-value\" data-pal-output=\"paymentCount\"\u003e—\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"pal-chart-card pal-section\" data-pal-chart-card aria-labelledby=\"pal-chart-heading\"\u003e\n    \u003cdiv class=\"pal-chart-head\"\u003e\n      \u003cdiv\u003e\n        \u003ch3 id=\"pal-chart-heading\"\u003eBalance and cumulative payments\u003c\/h3\u003e\n        \u003cp class=\"pal-chart-intro\" data-pal-chart-intro\u003eThe chart compares the remaining principal with cumulative regular payments over the selected payment period.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"pal-chart-stack\"\u003e\n      \u003cdiv class=\"pal-plot-wrap\" data-pal-plot-wrap\u003e\n        \u003csvg class=\"pal-chart-svg\" data-pal-chart role=\"img\" aria-labelledby=\"pal-chart-title pal-chart-desc\" viewbox=\"0 0 760 330\" preserveaspectratio=\"xMidYMid meet\"\u003e\n          \u003ctitle id=\"pal-chart-title\"\u003eLoan balance and cumulative payment chart\u003c\/title\u003e\n          \u003cdesc id=\"pal-chart-desc\" data-pal-chart-desc\u003eEnter values to generate the chart.\u003c\/desc\u003e\n        \u003c\/svg\u003e\n        \u003cdiv class=\"pal-chart-empty\" data-pal-chart-empty\u003eEnter values above to see the balance chart.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"pal-legend\" data-pal-legend aria-label=\"Chart legend\"\u003e\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"pal-chart-data\" data-pal-chart-data aria-label=\"Chart data summary\"\u003e\u003c\/div\u003e\n    \u003cdiv class=\"pal-chart-callout\" data-pal-chart-caption\u003eThe final remaining balance is the balloon payment due after the last regular monthly installment.\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"pal-table-card pal-section\" data-pal-table-card aria-labelledby=\"pal-table-heading\"\u003e\n    \u003cdiv class=\"pal-table-head\"\u003e\n      \u003cdiv\u003e\n\u003ch3 id=\"pal-table-heading\"\u003eAmortization schedule\u003c\/h3\u003e\n\u003cp class=\"pal-caption\"\u003eRegular monthly payments are shown separately from the balloon amount due at maturity.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"pal-table-control\"\u003e\n        \u003clabel class=\"pal-label\" for=\"pal-table-view\"\u003eSchedule detail\u003c\/label\u003e\n        \u003cselect class=\"pal-select\" id=\"pal-table-view\" data-pal-table-view\u003e\n          \u003coption value=\"annual\"\u003eAnnual summary\u003c\/option\u003e\n          \u003coption value=\"monthly\"\u003eMonthly detail\u003c\/option\u003e\n        \u003c\/select\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"pal-table-overflow\" data-pal-table-overflow\u003e\n      \u003ctable class=\"pal-table\"\u003e\n        \u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003ePeriod\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eOpening balance\u003c\/th\u003e\n\u003cth scope=\"col\"\u003ePayment\u003c\/th\u003e\n\u003cth scope=\"col\"\u003ePrincipal\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eInterest\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEnding balance\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n        \u003ctbody data-pal-table-body\u003e\u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"pal-table-note\" data-pal-table-note\u003eAt the end of the payment period, the ending balance becomes the balloon payment. The balloon is not included in the regular payment column.\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"pal-education\"\u003e\n    \u003ch2\u003eWhat this calculator estimates\u003c\/h2\u003e\n    \u003cp\u003eA partially amortized loan uses a long amortization schedule to determine a relatively low recurring payment, but the contractual payment term ends earlier. Because the monthly installments do not reduce the balance to zero by maturity, the borrower must pay the remaining principal in one lump sum, refinance it, or repay it from sale proceeds. This calculator estimates the regular monthly installment, the total of those installments, the balloon balance, the total cash paid when the balloon is included, and the interest cost over the selected term.\u003c\/p\u003e\n    \u003cp\u003eThe model assumes a fixed nominal annual rate, equal monthly payments, monthly compounding, and payments made at the end of each month. It does not include origination fees, points, taxes, insurance, escrow, late charges, prepayment penalties, or a changing interest rate. The \u003ca class=\"pal-link\" href=\"https:\/\/www.consumerfinance.gov\/ask-cfpb\/what-is-a-balloon-payment-en-104\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eConsumer Financial Protection Bureau\u003c\/a\u003e explains why balloon obligations require careful planning, while the \u003ca class=\"pal-link\" href=\"https:\/\/www.federalreserve.gov\/consumerscommunities.htm\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eFederal Reserve consumer resources\u003c\/a\u003e provide broader context for comparing credit terms.\u003c\/p\u003e\n\n    \u003ch2\u003eHow to enter the loan assumptions\u003c\/h2\u003e\n    \u003ch3\u003eFull loan amount\u003c\/h3\u003e\n    \u003cp\u003eEnter the original principal borrowed, not the purchase price or property value. This field is required and should be a positive dollar amount. A larger principal increases the monthly payment, balloon balance, and total interest approximately in direct proportion. A common mistake is to subtract future principal payments or add closing costs that are not actually financed. If a fee is rolled into the debt, include it only when it becomes part of the lender's principal balance.\u003c\/p\u003e\n    \u003ch3\u003eAnnual interest rate\u003c\/h3\u003e\n    \u003cp\u003eEnter the stated nominal annual rate as a percentage. The calculator divides it by 12 to obtain a monthly periodic rate. A higher rate raises the monthly payment and generally leaves a larger balloon balance because more of each payment is absorbed by interest. A zero rate is supported and produces straight-line principal reduction. Do not enter the monthly rate in this field, and do not convert a quoted percentage into a decimal yourself; enter 7.5 for 7.5%.\u003c\/p\u003e\n    \u003ch3\u003eAmortization time\u003c\/h3\u003e\n    \u003cp\u003eEnter the number of years over which the regular payment is calculated. This is not necessarily the legal maturity of the loan. Longer amortization lowers the monthly installment but slows principal reduction and increases the balloon amount at a shorter maturity. Shorter amortization raises the monthly payment and reduces the residual balance faster. The amortization time must be positive and cannot be shorter than the payment period.\u003c\/p\u003e\n    \u003ch3\u003ePayment period\u003c\/h3\u003e\n    \u003cp\u003eEnter the number of years during which regular monthly payments are made before the remaining balance becomes due. This field is sometimes called the loan term or maturity. A longer payment period gives the borrower more time to reduce principal and therefore lowers the balloon. If the payment period equals the amortization time, the loan becomes fully amortizing and the balloon approaches zero. Fractional years are accepted and converted to the nearest whole month.\u003c\/p\u003e\n\n    \u003ch2\u003eHow the calculations work\u003c\/h2\u003e\n    \u003cp\u003eThe monthly installment is the standard level-payment annuity amount based on the original principal, monthly interest rate, and total amortization months. The remaining balance after the contractual payment months is the present value of the unpaid scheduled installments, which is equivalent to carrying the balance forward month by month after each payment.\u003c\/p\u003e\n    \u003cdiv class=\"pal-formula\"\u003eMonthly payment = Principal × monthly rate ÷ (1 − (1 + monthly rate)\u003csup\u003e−amortization months\u003c\/sup\u003e)\u003c\/div\u003e\n    \u003cp\u003eFor a zero interest rate, the monthly payment equals principal divided by amortization months. Each schedule row then applies interest to the opening balance, allocates the rest of the payment to principal, and calculates the ending balance. The final ending balance is reported as the balloon payment. The \u003ca class=\"pal-link\" href=\"https:\/\/www.investopedia.com\/terms\/a\/amortized_loan.asp\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eamortized loan overview from Investopedia\u003c\/a\u003e provides additional background on how level payments shift from interest-heavy to principal-heavy over time.\u003c\/p\u003e\n\n    \u003ch2\u003eHow to interpret every result\u003c\/h2\u003e\n    \u003ch3\u003eMonthly payment and total regular payments\u003c\/h3\u003e\n    \u003cp\u003eThe monthly payment is the recurring cash requirement before any balloon is paid. Total regular payments equals that installment multiplied by the number of scheduled months. A lower monthly payment can improve near-term cash flow, but it does not necessarily mean the loan is cheaper because more principal may remain outstanding at maturity.\u003c\/p\u003e\n    \u003ch3\u003eBalloon payment and balloon share\u003c\/h3\u003e\n    \u003cp\u003eThe balloon payment is the principal still owed immediately after the last regular installment. Balloon share expresses that amount as a percentage of the original loan. A value near 100% means very little principal is being retired during the term, while a low percentage indicates substantial amortization. A zero result means the payment period is long enough to fully amortize the debt under the stated assumptions. The most important risk is not the arithmetic but the repayment plan: sale proceeds, cash reserves, or refinancing may be uncertain when the balloon becomes due.\u003c\/p\u003e\n    \u003ch3\u003eTotal paid and total interest\u003c\/h3\u003e\n    \u003cp\u003eTotal paid combines every regular installment with the final balloon. Total interest is total paid minus the original principal. These figures isolate financing cost under the model, but they exclude lender fees and transaction costs. Comparing only monthly payments can be misleading; compare the balloon and full cash obligation as well.\u003c\/p\u003e\n    \u003ch3\u003eRepayment profile, chart, and schedule\u003c\/h3\u003e\n    \u003cp\u003ePrincipal repaid during the term equals the original loan minus the balloon. Interest paid during the term equals regular payments minus principal reduction. The chart tracks the declining balance against cumulative regular payments, while the schedule shows the opening balance, payment, principal component, interest component, and ending balance for each period. The annual view aggregates monthly rows for easier scanning; the monthly view exposes the exact payment progression. Lenders may apply day-count conventions or rounding rules that create small differences from a monthly model.\u003c\/p\u003e\n\n    \u003ch2\u003ePractical tradeoffs and common mistakes\u003c\/h2\u003e\n    \u003cp\u003ePartially amortized structures can reduce required monthly debt service and may fit projects expected to be sold or refinanced before maturity. The tradeoff is concentration of repayment risk in a large final obligation. Sensitivity is especially high to the interest rate, amortization length, and gap between amortization and maturity. Test a higher rate, a shorter refinance window, and a lower expected sale value rather than relying only on the base case.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003eDo not confuse amortization time with the contractual payment period.\u003c\/li\u003e\n      \u003cli\u003eDo not treat the balloon as optional; it is part of the total amount due.\u003c\/li\u003e\n      \u003cli\u003eDo not assume refinancing will be available on the same terms at maturity.\u003c\/li\u003e\n      \u003cli\u003eDo not omit financed fees when they are included in principal.\u003c\/li\u003e\n      \u003cli\u003eDo not compare offers using payment alone; compare rate, term, fees, balloon, and total cash paid.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eFor regulated banks and commercial credit practices, the \u003ca class=\"pal-link\" href=\"https:\/\/www.occ.treas.gov\/topics\/supervision-and-examination\/credit\/commercial-credit\/index-commercial-credit.html\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOffice of the Comptroller of the Currency\u003c\/a\u003e publishes credit-risk materials. This calculator is educational and does not provide personalized financial, legal, tax, or lending advice.\u003c\/p\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e","brand":"FinancialModelsLab","offers":[{"title":"Default Title","offer_id":49909485732083,"sku":"partially-amortized-loan","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0522\/6191\/2762\/files\/partially-amortized-loan.webp?v=1783935482","url":"https:\/\/financialmodelslab.com\/products\/partially-amortized-loan","provider":"Financial Models Lab","version":"1.0","type":"link"}