Mortgage & Loan Amortization Calculator
Calculate monthly home loan payments, interest payoff schedules, and amortization matrices for 15-year or 30-year mortgages.
Calculate home loan monthly payments, compare bank repayment methods (Equal Principal vs Installment), and view full amortization schedules.
1. Loan & Property Parameters
First Month Payment
23,625,000 ₫
Last month: 8,811,979 ₫
Total Interest
1,792,437,500 ₫
Total Principal + Interest
3,892,437,500 ₫
Amortization Schedule
| Year | Principal | Interest | Total Paid | End Balance |
|---|---|---|---|---|
| Year 1 | 105,000,000 ₫ | 174,409,375 ₫ | 279,409,375 ₫ | 1,995,000,000 ₫ |
| Year 2 | 105,000,000 ₫ | 165,484,375 ₫ | 270,484,375 ₫ | 1,890,000,000 ₫ |
| Year 3 | 105,000,000 ₫ | 156,559,375 ₫ | 261,559,375 ₫ | 1,785,000,000 ₫ |
| Year 4 | 105,000,000 ₫ | 147,634,375 ₫ | 252,634,375 ₫ | 1,680,000,000 ₫ |
| Year 5 | 105,000,000 ₫ | 138,709,375 ₫ | 243,709,375 ₫ | 1,575,000,000 ₫ |
| Year 6 | 105,000,000 ₫ | 129,784,375 ₫ | 234,784,375 ₫ | 1,470,000,000 ₫ |
| Year 7 | 105,000,000 ₫ | 120,859,375 ₫ | 225,859,375 ₫ | 1,365,000,000 ₫ |
| Year 8 | 105,000,000 ₫ | 111,934,375 ₫ | 216,934,375 ₫ | 1,260,000,000 ₫ |
| Year 9 | 105,000,000 ₫ | 103,009,375 ₫ | 208,009,375 ₫ | 1,155,000,000 ₫ |
| Year 10 | 105,000,000 ₫ | 94,084,375 ₫ | 199,084,375 ₫ | 1,050,000,000 ₫ |
| Year 11 | 105,000,000 ₫ | 85,159,375 ₫ | 190,159,375 ₫ | 945,000,000 ₫ |
| Year 12 | 105,000,000 ₫ | 76,234,375 ₫ | 181,234,375 ₫ | 840,000,000 ₫ |
| Year 13 | 105,000,000 ₫ | 67,309,375 ₫ | 172,309,375 ₫ | 735,000,000 ₫ |
| Year 14 | 105,000,000 ₫ | 58,384,375 ₫ | 163,384,375 ₫ | 630,000,000 ₫ |
| Year 15 | 105,000,000 ₫ | 49,459,375 ₫ | 154,459,375 ₫ | 525,000,000 ₫ |
| Year 16 | 105,000,000 ₫ | 40,534,375 ₫ | 145,534,375 ₫ | 420,000,000 ₫ |
| Year 17 | 105,000,000 ₫ | 31,609,375 ₫ | 136,609,375 ₫ | 315,000,000 ₫ |
| Year 18 | 105,000,000 ₫ | 22,684,375 ₫ | 127,684,375 ₫ | 210,000,000 ₫ |
| Year 19 | 105,000,000 ₫ | 13,759,375 ₫ | 118,759,375 ₫ | 105,000,000 ₫ |
| Year 20 | 105,000,000 ₫ | 4,834,375 ₫ | 109,834,375 ₫ | 0 ₫ |
How do I use Mortgage & Loan Amortization Calculator?
Enter Home Price, Down Payment (`$` or `%`), Loan Term (years), and Interest Rate (`%`), or click "Load Sample Data".
Include optional Property Tax, Home Insurance, HOA fees, and PMI to see your true monthly PITI payment.
Inspect the interactive breakdown and full month-by-month amortization schedule.
What features does Mortgage & Loan Amortization Calculator offer?
Monthly principal and interest payment breakdown
Supports 10, 15, 20, and 30-year mortgage terms
Full monthly amortization schedule grid
1-Click CSV schedule export & 100% Client Privacy
Fixed-Rate Mortgage Amortization Formula & PITI Components
Monthly principal and interest ($M$) is calculated via $M = P \cdot \frac{r(1 + r)^n}{(1 + r)^n - 1}$, where $P$ is principal, $r = \text{APR}/12$, and $n = \text{years} \times 12$.
| Cost Component | Calculation Basis | Equity Impact | Cancellation / Adjustment Rule |
|---|---|---|---|
| Principal (P) | $M - (P_{\text{rem}} \times r)$ each month | Directly builds home equity | Portion increases exponentially over loan term |
| Interest (I) | $P_{\text{remaining}} \times (\text{Annual Rate} / 12)$ | Pure borrowing cost (0% equity) | Front-loaded in early years of amortization |
| Property Taxes (T) | Assessed Value × Local Millage Rate / 12 | Escrow pass-through to municipality | Reassessed annually by county/city |
| Home Insurance (I) | Annual Hazard Policy Premium / 12 | Protects collateral structure | Adjustable via deductible or carrier switch |
| Private Mortgage Ins. (PMI) | 0.5% – 1.2% of loan annually / 12 | Protects lender when Down Payment < 20% | Auto-terminates at 78% LTV (Homeowners Protection Act) |
Frequently Asked Questions about Mortgage & Loan Amortization Calculator
Why does most of my monthly mortgage payment go toward interest during the first 7 years?
Because interest each month is calculated on the remaining principal balance ($P_{\text{rem}} \times r$). On a $400,000 loan at 6.5%, month 1 interest is $2,166.67, leaving only $361.60 for principal reduction.
When is Private Mortgage Insurance (PMI) required and how can it be removed?
Conventional lenders require PMI whenever your down payment is less than 20% (`Loan-to-Value > 80%`). You can request PMI removal once principal reaches 80% LTV, and lenders must terminate it automatically at 78% LTV.
How much interest does one extra principal payment per year (bi-weekly strategy) save?
Making 26 half-payments per year equals 13 full monthly payments instead of 12. On a 30-year fixed loan at 6.5%, that single extra annual principal payment shaves roughly 4.5 to 5.5 years off the mortgage term.
What is the difference between Interest Rate and APR on a mortgage?
The Interest Rate calculates your monthly principal and interest payment, whereas APR (Annual Percentage Rate) folds in upfront lender origination fees, discount points, and mortgage insurance to reflect true annualized borrowing cost.
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