Loans
Loan Amortization Calculator
Generate a complete month-by-month amortization schedule showing payment, principal, interest, and remaining balance for every payment of your loan.
🔒 All calculations happen instantly in your browser. No data is sent to any server.
How the Loan Amortization Calculator Works
Each row of the schedule is calculated as:
Interest Portion = Remaining Balance × (Annual Rate ÷ 12)
Principal Portion = Monthly Payment − Interest Portion
New Balance = Previous Balance − Principal Portion
Because balance decreases each month, the interest portion shrinks and the principal portion grows, a process called negative amortization reversal. Early payments are mostly interest; late payments are mostly principal.
Loan Amortization Calculator Insights & Strategic Planning
Good estimates help you plan your money with confidence. Use the numbers from the Loan Amortization Calculator to set realistic goals, cut extra costs, and make smart financial decisions.
Planning Ahead
Small changes add up fast over time. Checking your numbers often helps you stay on track and build strong savings habits.
Smart Budgeting
Always pair your calculations with real daily spending needs. Keeping an emergency fund gives you peace of mind and flexibility.
Loan Amortization Calculator Frequently Asked Questions
What is an amortization schedule?
A table showing every payment of a loan, broken down into how much goes to interest and how much to principal, plus the remaining balance after each payment. It reveals the true cost of borrowing over time.
Why is my early payments almost all interest?
At the start, your balance is at its highest. Interest = balance × monthly rate, so it's highest early on. As the balance falls, less goes to interest and more to principal. This is called front-loaded interest.
How do I use this schedule for tax purposes?
Mortgage interest on a primary residence is often tax-deductible in the US. The amortization schedule shows exactly how much interest you paid in each calendar year, useful for itemising deductions on Schedule A.
What is the tipping point where principal exceeds interest?
On a 30-year mortgage at 7%, the tipping point is around month 222 (year 18-19), past that, more of each payment goes to principal than interest. The calculator table shows this visually as the principal column grows.
Can I use this for a mortgage, car loan, or student loan?
Yes, for any fixed-rate amortizing loan. Enter the original amount, rate, and full term. For the remaining schedule mid-loan, enter your current balance, current rate, and remaining months (converted to years).
How does an extra payment affect the schedule?
Extra payments reduce the principal faster, so the schedule shortens and interest on all remaining rows decreases. Use the Extra Payment Loan Calculator to model this; the amortization schedule assumes standard payments only.
Are the numbers I enter into this calculator saved or tracked?
No. Every calculation runs right inside your browser using local code. Your salary, debts, and loan numbers stay completely private. Nothing is ever saved or sent to any server.
How should I account for taxes, inflation, and unexpected fees?
Most formulas show baseline estimates. In real life, keep local taxes, inflation, and bank fees in mind so your budget matches your actual costs.
Financial Calculation Disclaimer
The results from the Loan Amortization Calculator are for general informational and educational use only. They are based on standard mathematical formulas and the numbers you enter.
BeYourTools is not a bank, lender, or financial advisor. This tool does not provide official tax or legal advice. Real rates and fees depend on your lender and local rules. For major financial decisions, please speak with a qualified professional. Read our complete Financial & Legal Disclaimer.