Generate a detailed amortization schedule showing how each mortgage payment splits between principal and interest over the life of your loan.
Amortization Schedule Calculator helps you make informed financial decisions using current rates and proven formulas. Adjust the inputs below to match your situation and see your personalized results update in real time.
Results are estimates only. Not financial advice.
🔒 Financial Disclaimer: These calculations are estimates for informational purposes only. Results are not financial advice. Consult a qualified financial advisor before making major financial decisions.
Calculations based on publicly available data from government agencies. Actual results may vary based on individual circumstances.
30-year fixed-rate mortgages — updated April 2026
| Lender | Rate | APR | Est. Payment | Action |
|---|---|---|---|---|
Community Credit UnionBest Rate | 6.125% | 6.280% | $1,217/mo | |
National Lending Co | 6.250% | 6.410% | $1,231/mo | |
Big Bank Mortgage | 6.375% | 6.520% | $1,247/mo | |
Premier Mortgage | 6.450% | 6.580% | $1,258/mo | |
Digital Home Loans | 6.500% | 6.630% | $1,264/mo |
Rates shown are for illustrative purposes. Actual rates may vary based on credit score, loan amount, down payment, and market conditions. Contact lenders directly for personalized rate quotes.
The Amortization Schedule Calculator generates a month-by-month breakdown of every payment over your mortgage term, showing exactly how much of each payment goes toward interest versus principal. The methodology uses standard loan amortization where each payment is calculated using the same amortization formula: M = P[r(1+r)^n]/[(1+r)^n-1]. In the early payments, the interest portion is highest because it is calculated on the largest remaining principal balance. As you make payments, the principal portion of each payment grows while the interest portion shrinks, until the final payments are almost entirely principal. The schedule also shows your cumulative principal paid, cumulative interest paid, and remaining loan balance after each payment. This structure is why mortgages are said to be front-loaded with interest — on a 30-year loan at 6.5%, the first payment might allocate $1,354 to interest and only $226 to principal. This calculator is valuable for homeowners who want to understand exactly where their money is going, buyers comparing loan offers side-by-side, financial planners modeling the impact of extra payments, and accountants tracking deductible mortgage interest. It helps answer questions like when will I hit 50% principal on my payments, how much do I save by making extra principal payments, and how long have I actually paid down on this loan. The table can also be used to track year-by-year interest deductions for tax purposes. The calculator assumes a fixed interest rate for the entire term and does not model adjustable-rate mortgages where the rate changes periodically. It also does not account for escrow accounts that pay property taxes and insurance directly, which can slightly alter the effective balance reduction each month. If you make prepayments, the actual schedule will differ from this projection. For loans with balloon payments, interest-only periods, or stepped payment plans, a different amortization model would be needed. This schedule represents the theoretical payoff path assuming perfectly equal payments and no rate changes over time.
Result: A $250,000 loan at 6.5% over 30 years yields 360 monthly payments of $1,580.17. In month 1, $1,354.17 goes to interest and $226.00 reduces principal. By month 180 (year 15), $1,028 goes to principal and $552 to interest — the split reverses. Over the life of the loan, you pay $318,861 in total payments, of which $68,861 is interest.
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