4.97 out of 5 based on 2,400+ reviews

Mortgage Repayment Calculator

Compare different borrowing structures

See your mortgage balance over time

Understand how overpayments could help reduce your mortgage faster

Rated 4.97 out of 5 from 2,400+ reviews

Mortgage Repayment Calculator

£
%
Repayment Types
Capital and interest: Repays both the mortgage balance and interest over the agreed term, meaning the loan is fully repaid at the end of the mortgage.
Interest only: Pays only the interest charged on the mortgage. The original loan balance remains outstanding and will need to be repaid separately at the end of the term.
Part and part: A combination of repayment and interest-only borrowing, where part of the mortgage balance reduces over time and part remains outstanding until the end of the mortgage term.

Loan Value Over Time

See how your selected borrowing structure affects the loan balance over time, and add a monthly overpayment to model how the debt could reduce faster.

£
Estimated Time Saved 0 months
Estimated Interest Saved £0.00

Most lenders allow overpayments up to 10% of your outstanding mortgage balance each year without incurring an early repayment charge during a fixed or discounted rate period. Limits and conditions vary by lender and mortgage product. Check your mortgage offer before making overpayments.

Selected mortgage With monthly overpayments
Year Selected Mortgage Balance With Overpayments Capital Paid Interest Paid

This calculator is for illustration only. It does not include fees, lender rules, early repayment charges, product changes, or changes to interest rates.

Important Information

Please note the information provided by this mortgage repayment calculator serves as a guide only and should not be relied on as a recommendation or advice that any particular mortgage is suitable for you. All mortgages are subject to the applicant(s) meeting the eligibility criteria of lenders. Loans are subject to status and valuation and are not available to persons under 18 years of age. Written quotations available from individual lenders. For secured loans the lender will require a charge on your property and in the case of endowment mortgages, an endowment/life policy for the amount of the advance and a charge over the property. For interest only mortgages, the above calculations do not take into account the cost of any endowment, pension or other savings plan being used to repay the loan. In addition, the figures shown in respect of both repayment and interest only mortgages do not include the cost of additional life cover.

This information does not contain all of the details you need to choose a mortgage.

The information provided by these calculators is for illustrative purposes only and does not constitute a mortgage offer, decision in principle or mortgage advice.

Take Your Mortgage Search Further

Our mortgage calculators are a great starting point, but they can only provide an estimate of what may be possible.

For a clearer understanding of your options, personalised mortgage advice, and access to a wider range of products, speak to one of our mortgage experts today.

Loan Value Over Time Explained

Understanding how your loan balance changes throughout your mortgage term can help you see how much you are likely to owe at different stages and how your chosen mortgage type affects the amount outstanding.

With a repayment mortgage, each payment covers both interest and part of the amount borrowed. As a result, the outstanding balance gradually decreases and is typically repaid in full by the end of the mortgage term.

With an interest-only mortgage, your monthly payments cover only the interest charged on the loan. The amount borrowed does not reduce, meaning the full balance remains outstanding and must be repaid at the end of the term.

If you have a part and part mortgage, where part of the loan is on a repayment basis and part is interest-only, only the repayment portion reduces during the mortgage term. The interest-only portion remains outstanding and will still need to be repaid when the term ends.

Mortgage Repayment types Explained

Repayment Mortgage

A repayment mortgage, also known as a capital and interest mortgage, is the most popular option amongst borrowers for residential property. The mortgage repayments are made up of a capital payment used to repay the initial capital borrowed and some interest.

Interest-Only Mortgage Calculation

The monthly repayments only pay off the interest of the loan and not the initial capital borrowed. At the end of the mortgage term, the full mortgage amount will have to be repaid.

Part and Part Mortgage

A part and part mortgage offers a combination of both a repayment mortgage and an interest-only mortgage.

Frequently Asked Questions

The interest rate available to you depends on a range of factors, including your credit profile, income, loan amount, property value, and the size of your deposit or equity. Lenders assess each application individually.

Our repayment calculator can help you understand how different interest rates could affect your monthly mortgage payments before you apply and help you understand what you could afford.

The amount you can borrow is typically based on factors such as your income, existing financial commitments, credit history, and the lender’s affordability criteria.

You can use our calculator to get a rough estimate of your borrowing potential in just a few minutes.

For a more accurate assessment tailored to your circumstances, speak with one of our mortgage brokers, who can provide personalised advice and help you understand the options available to you.

With a repayment mortgage, each monthly payment reduces both the interest and the outstanding loan balance, so the debt is fully cleared by the end of the term. With an interest-only mortgage, monthly payments cover only the interest, meaning the full loan balance remains due at the end of the term and must be repaid separately.
A longer mortgage term spreads the cost of borrowing over more years, which reduces your monthly payments but increases the total amount of interest you pay over the life of the loan. A shorter term means higher monthly payments but a lower overall interest cost. Use the calculator to compare different term lengths and find the right balance for your budget.

Interest rates play a key role in determining your monthly mortgage repayments. If you’re on a variable or tracker mortgage, changes to interest rates can cause your payments to rise or fall. Even a small increase in rates could add a significant amount to your monthly costs over time.

If you’re on a fixed-rate mortgage, your payments will remain unchanged until your fixed term ends, regardless of any changes to interest rates during that period.

Our repayment calculator helps you explore different interest rate scenarios, showing how changes could affect your monthly payments and helping you plan ahead with confidence.

Absolutely. The calculator is available to all users regardless of employment status. However, self-employed borrowers should be aware that lenders may assess income differently, and speaking with a specialist adviser is strongly recommended to get an accurate picture of your borrowing capacity.
The right choice depends on your financial circumstances, goals, and risk appetite. A repayment mortgage offers certainty — you will own your property outright at the end of the term. An interest-only mortgage can offer lower monthly costs but requires a credible strategy to repay the capital. Our advisers can help you evaluate the options in the context of your individual situation.

Bespoke Mortgage Requirements?

Whatever your situation, our premier mortgage team can advise on suitable solutions. We specialise in complex and bespoke mortgage solutions to help you find competitive terms.

Comparing over 300 lenders
Free initial consultation with no obligation to proceed
25+ years of industry experience and relationships