Amortization Schedule Calculator — Loan & Mortgage Repayment Table
Free amortization schedule calculator with extra payment options. Generate full monthly & yearly loan payoff tables, calculate interest savings, and estimate early loan payoff.
How to use this calculator
👉 Fill in the boxes below and your answer appears instantly — no maths needed, we do it all for you! 🎉
In plain English — what does this do?
🏠 You want to buy something big (like a house or car) but you don’t have all the money right now. A bank gives you the money today, and you pay it back little by little every month. This tool tells you ‘how much do I pay each month?’
An amortization schedule calculator generates a month-by-month and year-by-year table showing how every loan payment is allocated between principal and interest. It calculates exact interest savings when making recurring extra monthly payments or one-time lump-sum principal paydowns.
Monthly Payment
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Total Interest
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Total Cost
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Interest Saved
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Time Saved
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Monthly schedule
| Month | Payment | Principal | Interest | Balance |
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What is Amortization Schedule Calculator — Loan & Mortgage Repayment Table?
An amortization schedule calculator generates a month-by-month and year-by-year table showing how every loan payment is allocated between principal and interest. It calculates exact interest savings when making recurring extra monthly payments or one-time lump-sum principal paydowns.
How to use it
- 1️⃣ Enter your total loan amount (principal), annual interest rate, and loan term in years.
- 2️⃣ Optionally enter a recurring extra monthly payment to calculate early payoff acceleration.
- 3️⃣ Optionally add a one-time lump-sum payment and specify the month it will be applied.
- 4️⃣ Toggle between Monthly breakdown and Yearly summary views for the amortization table.
- 5️⃣ Review your total interest savings and the exact number of years cut off your loan term.
Formula
💡 See it in action — a real example
❓ Common questions
- How does an amortization schedule with extra payments work?
- Adding extra payments directly reduces your loan principal balance. Because monthly interest is calculated as a percentage of your remaining principal, extra payments permanently lower future interest charges and accelerate your payoff date.
- What is the difference between principal and interest in an amortization table?
- In early loan years, the majority of your monthly payment pays off interest accrued on the large balance. As the balance decreases over time, a larger portion of each payment goes directly toward paying down the principal.
- How much interest can I save by making one extra payment per year?
- Making one extra monthly payment each year (or dividing your monthly payment by 12 and adding that amount monthly) on a 30-year mortgage typically shaves 4 to 5 years off your loan term and saves tens of thousands in interest.
- Can I print or view the yearly vs monthly amortization breakdown?
- Yes. Toggle between 'Monthly View' for a detailed 360-month line-item schedule or 'Yearly View' to analyze total annual principal paid, total annual interest, and remaining end-of-year balance.
- What is a lump-sum principal payment?
- A lump-sum principal payment is a single one-time extra payment (such as a bonus or tax refund) applied directly to your loan principal. Making a lump-sum payment early in your loan yields the highest long-term interest savings.