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Mortgage Cost and Repayments Calculator

It helps to know how much your mortgage could cost each month and that it is affordable. Our mortgage cost calculator shows the cost of your mortgage repayments in seconds. Enter the interest rate, mortgage amount, mortgage term and type of mortgage you’re looking for. We’ll give you an indication your monthly repayments. You can also compare two mortgages or the effect of a rate change on your repayments.

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See deals you qualify for & how much you could borrow with L&Cs mortgage finder

Your home or property may be repossessed if you do not keep up the repayments on your mortgage. Representative example: A mortgage of £218,181 payable over 24 years, initially on a fixed rate until 31/07/26 at 4.71% and then on a variable rate of 6.99% for the remaining 22 years would require 27 payments of £1,266.09 followed by 261 payments of £1,541.62. The total amount payable would be £437,546 made up of the loan amount plus interest (£218,366) and fees (£999). The overall cost for comparison is 6.7% APRC representative.

How much will my mortgage cost?

Mortgage cost calculator

Our mortgage cost calculator will help you get an idea of what your mortgage is likely to cost based on the amount you borrow, the interest rate and the number of years you plan to take to repay it. However, the rates and figures shown are for illustrative purposes and realistically the interest rate you pay will change during your chosen mortgage term. Before taking any mortgage out you should get a personalised illustration showing the full costs and charges, and if you have any questions, it is best to speak to a mortgage adviser.

What determines how much your mortgage will cost?

The cost of your mortgage depends on several factors, including how much you’re borrowing, your mortgage term, and the rate of interest you’re paying. If your mortgage is a repayment mortgage you’ll make monthly mortgage repayments which cover both the amount you borrowed and the interest due. If it’s interest only you’ll just be paying the interest rather than reducing the amount you owe. 

Can I make my monthly repayments more affordable?

On a repayment mortgage the longer the mortgage term you choose the cheaper your monthly payments will be, but you’ll end up paying back more overall. If you choose a shorter term, your monthly payments might be higher, but you’ll reduce the total amount of interest you need to pay back, as you’ll be paying off the loan more quickly.

If you’re not sure which mortgage deal is likely to be most cost-effective for you based on your individual circumstances, our mortgage partners at L&C can run you through the available options to make sure you’re getting the best deal possible.

Can I use the mortgage cost calculator if I’m remortgaging?

Yes. The mortgage cost calculator can be useful not just when you initially take out a mortgage but at any time your mortgage may be changing or you are considering remortgaging. It can help you work out the estimated cost for a new mortgage rate deal and you can compare the cost of two different mortgages.

Other mortgage costs — mortgage fees:

When choosing a mortgage, it’s important to consider any additional mortgage fees and charges you might have to pay.

Lenders usually charge two types of mortgage fee: an arrangement fee and a booking fee. The booking fee is a non-refundable charge paid on application that allows you to reserve the mortgage you want.

The arrangement fee is, as the name suggests, a fee charged by a lender to set up the mortgage on your behalf. It’s charged when your mortgage completes.

You’ll also need to factor in the valuation fee, charged by lenders for commissioning a mortgage valuation, which is a basic inspection of your property.

It’s also worth bearing in mind that if you do take a fixed or discounted rate then often these will come with Early Repayment Charges, which mean that if you want to repay your mortgage before the deal is up you could incur a large fee. 

How do I compare mortgage deals? 

Often the mortgage deals with the lowest rates carry the biggest fees, so it’s important to factor these in when trying to work out the best deal for you. If you’re taking out a relatively small mortgage, for example, it may be cheaper to choose a deal with a slightly higher interest rate but lower fees. If, however, you’re taking out a larger mortgage, it might be more cost-effective to take out a mortgage with a lower rate.

Our mortgage partners at L&C recommend annual cost as the best way to see which mortgage deal offers the best value for the size of mortgage you’re looking to take.

They calculate the annual cost by:

  • Adding up all the fees associated with the mortgage deal and deducting any cash back to find total fees
  • Dividing the total fees by the number of months the initial mortgage rate lasts to find the total fees per month
  • Adding the total fees per month to your monthly mortgage payment and multiplying by 12 to calculate the annual cost

By comparing mortgage deals looking at annual cost you can see which one would be cheapest for you taking into account fees as well as the interest rate. The annual cost only applies to the initial deal as its always best to consider switching once the initial deal is over to see if you could save money.

How do I find the best mortgage rate?

This depends on the type of mortgage you want, your deposit, lender fees and more. Banks and building societies change their mortgage rates quite frequently, so let expert, fee-free brokers L&C to do the hard work for you. If you want to get an idea of the best rates available today, see our review of this month’s best mortgage rates.

Why get a mortgage with L&C?

If you’re not sure which mortgage deal is likely to be most cost-effective for you based on your individual circumstances, L&C’s expert advisers can run you through the available options to make sure you’re getting the best deal possible.

We have teamed up with L&C to bring you FREE mortgage advice. No hidden costs, just great service. You can start your mortgage online to see the deals you qualify for and how much you can borrow or speak to an expert adviser at L&C now on 0800 073 2326.

When should I apply for a mortgage?

The best advice is to start the process before you start seriously looking for somewhere to buy. Most estate agents and home sellers will expect you to have a mortgage agreement in principle (AIP) when you make an offer. Once you have an offer accepted on a property, you make your full mortgage application.

When should I remortgage?

It is good practice to remortgage every few years to ensure you are on the best deal and are not paying over the odds. Set a reminder for three months before your fixed deal is due to end. This will give you plenty of time to shop around and get your remortgage application completed in time for you to simply switch onto a better deal. 

How to Remortgage

Remortgaging your property essentially involves you switching from one mortgage to another.

You might be switching to a new and better deal with your existing lender, or you might decide to move to a new mortgage with a different lender.

There are lots of reasons to remortgage. You may have found a cheaper deal which can help you reduce your monthly outgoings, or want to increase the amount you’re borrowing, perhaps to fund home improvements. Read more about how to remortgage.

Do I need a mortgage broker?

Mortgage brokers – like the experts at L&C – can scour the market for you, looking for the right deal to suit your situation. They can help you save money on your current mortgage and make sure you’re not paying over the odds with your current deal. You can use a mortgage broker to help with a remortgage even if you plan to stay with your existing lender. They are also particularly helpful if you are self employed, buying a buy-to-let or think your situation is unusual in any way. They will know the lenders and deals that will work for you.

How do I get a mortgage?

You can start your mortgage or remortgage online to see the deals available to you or speak to an expert adviser at L&C now on 0800 073 2326. They are open 9-8 Mon-Thurs, 9-5.30 Fri, 9-5 Sat, 10-4 Sun.

Over 2 million people have come to L&C for mortgage advice

They compare 1,000s of mortgage deals so you don’t have to
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Frequently Asked Questions

How are payments calculated on a repayment mortgage?

Mortgage payments have two separate parts: the total amount you’ve borrowed (the capital) and the interest charged on your loan. With a repayment mortgage, your monthly payments cover both, with a portion of your monthly payment going towards the capital, and the other part covering the interest on your debt. The amount of interest you pay is calculated on the remaining capital amount owing and will reduce over time as a result. A mortgage cost calculator is the easiest way to get an idea of your monthly repayments.

How much should my mortgage repayments be?

Some experts advise that your mortgage repayments should not be more than 28% of your gross income. And that you should keep under 36% of gross income for the total amount you spend on all borrowing, including your mortgage. It is always best to get expert mortgage advice.

How do I reduce my mortgage repayments?

The best way to reduce your repayments is to review your mortgage deal. The most expensive mistake many mortgage borrowers make is staying on the standard variable rate (SVR) mortgage after their introductory rate (whether tracker or fixed rate) has expired. Alternatively, you can look to extend your mortgage term, so you pay more over the mortgage but less each month or see if you can switch to an interest only mortgage for a few years where you don’t repay the capital, just the interest. If you have savings, offsetting your mortgage could be an option.

What is an offset mortgage?

An offset mortgage is a mortgage which is linked to a savings account. The balance on these savings are used to reduce the interest charged against the mortgage (thereby saving money). This is different to a ‘conventional’ mortgage in which interest is charged against the total borrowed amount.
The savings balance is not actually used to repay a mortgage but ‘sits’ alongside. It is essentially treated as a provisional ‘over payment’ which reduces your monthly mortgage cost – while also allowing customers to dip into their account as and when the need arises.

How much interest will I pay on my mortgage?

The exact amount of interest you’ll pay depends on the mortgage rate you’re on. This can change over time. You might be on a low mortgage rate now, but if interest rates rise during this period, you could end up paying a higher mortgage rate when you remortgage, or if you move onto your lender’s standard variable rate.

This calculator shows how much you would pay each month and over your mortgage term, assuming the rate remains the same. If your mortgage rate changes, you can use the calculator again to show what your payments would be on your new rate, as well as the change to the total amount over the term.

You can see the impact of paying a higher or lower interest rate on your mortgage payments by adjusting the interest rate on the calculator.

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