Mortgage Amortisation Calculator To Visualise Your Repayments
Quickly see how your monthly payments are split between interest and principal throughout your mortgage term.
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Understanding Mortgage Amortisation
Plan your repayments with clarity
Mortgage amortisation is the gradual repayment of a loan through regular instalments, covering both principal and interest. Our calculator provides a detailed repayment schedule, showing how much of each payment reduces your loan balance versus paying interest. This helps homeowners, landlords, and investors plan finances and track progress effectively.
Calculate Your Repayment Schedule in Seconds
See the full breakdown of principal and interest
Input your mortgage amount, interest rate, term, and repayment type to generate an amortisation table. This provides a clear month-by-month or year-by-year view of principal reduction, interest paid, and remaining balance. It’s ideal for budgeting and understanding long-term repayment strategy.
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Disclaimer: This calculator provides estimates only and should not be considered financial advice.
Designed for Homeowners, Landlords, and Investors
Understand repayment schedules and interest impact
- Homeowners planning long-term mortgage repayment strategies.
- Buy-to-let landlords assessing interest and principal on investment properties.
- First-time buyers wanting clarity on monthly payments.
- Homeowners considering extra payments or refinancing options.
- Investors comparing repayment impact for multiple mortgage products.
Understand Every Payment and Plan Ahead
Track your mortgage progress with precision
Full Repayment Breakdown
See how each payment splits between interest and principal.
Visualise Mortgage Term
Month-by-month or yearly view of your loan amortisation.
Plan Extra Payments
Analyse impact of overpayments on term and interest savings.
Budget Smarter
Understand total interest and principal to plan monthly finances.
Compare Scenarios
Test different interest rates or terms to see financial impact.
Free and Accessible
No registration required; use it anytime for fast, accurate estimates.
Frequently Asked Questions
What is mortgage amortisation?
Amortisation is the process of gradually paying off a mortgage through regular instalments. Each payment covers interest and reduces the principal balance over time.
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How does interest vs principal change over time?
Early in the mortgage, a higher proportion of payments goes to interest. Over time, more of each payment reduces the principal, shortening the loan balance faster.
Can this calculator handle different mortgage terms?
Yes. You can input any mortgage term, from short-term (5–10 years) to long-term (25–40 years), and see how repayment schedules vary.
How can I use this to plan overpayments?
By entering additional payments, the calculator shows how your principal reduces faster, the total interest saved, and the new shortened term.
Will the amortisation schedule change if my interest rate is variable?
Yes. This calculator assumes a fixed interest rate. For variable rates, results may differ as interest recalculates with market changes.
Is this calculator suitable for buy-to-let mortgages?
Absolutely. Landlords can input rental income assumptions, interest rates, and terms to model repayments and cash flow for investment properties.
How accurate is the repayment schedule?
It provides a precise estimate based on inputs, but actual lender calculations may differ slightly due to rounding, compounding frequency, or fees.
Can I compare different mortgages using this tool?
Yes. You can adjust loan amount, term, and rate to compare multiple scenarios and determine which mortgage structure suits your needs best.
Should I speak to a mortgage advisor after using this calculator?
Yes. While the calculator gives a clear overview, a professional can advise on refinancing, overpayments, and optimal mortgage structures tailored to your finances.