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Mortgage Overpayment Calculator

How much will extra payments reduce my mortgage?

Even a small extra payment each month can take years off a mortgage term and save thousands in interest, because every pound you overpay stops being charged interest for the rest of the term. Type in your balance, rate, remaining term and the extra amount, and the calculator below shows how much sooner you could be mortgage free and roughly what you would save. It is guidance only: most lenders cap penalty free overpayments at around 10% of the balance a year, and going over that can trigger an early repayment charge. For the rules, the trade offs and whether overpaying is right for you, read mortgage overpayments: how much could you really save.

Mortgage overpayment calculator

See what paying a bit extra each month, or a one-off lump sum, does to your interest bill and how many years it takes off the mortgage.

£
%

The rate on your current mortgage.

years
£
£

Optional. Paid now, on top of the monthly extra.

Interest you would save

£0

Side by side

This assumes the rate stays the same for the whole term and that the overpayments start now. Most fixed and tracker mortgages let you overpay up to 10% of the balance each year without an early repayment charge; go over that and the charge can wipe out the saving, so check your mortgage offer or ask me before paying in a large lump sum. If you are coming to the end of a fixed rate, it is often worth looking at remortgaging and overpaying together.

HTG Mortgages Limited 1017945 is an Appointed Representative of Switch Financial Network, who is authorised and regulated by the Financial Conduct Authority. Your home may be repossessed if you do not keep up repayments on your mortgage.

Thinking about overpaying?

Whether overpaying makes sense depends on your rate, your terms and what else the money could do, and that is a conversation rather than a calculator. Leave your first name and mobile and I will talk it through with you.

Harry Goodliffe, HTG MortgagesYou’ll speak to me, Harry, not a call centre.
★★★★★ 5.0 on Google

No credit check. No obligation. I’ll ring you, usually the same working day.

Figures are for illustration only, based on the assumptions shown, and are not a quote or a guarantee of what you can borrow or what a lender will accept. Lender criteria and rates change often. Read the full important information.

Lenders I work with include

Halifax
Nationwide
HSBC UK
Santander
NatWest
Barclays
Virgin Money
TSB
Skipton Building Society
Metro Bank
Coventry Building Society
Leeds Building Society
Accord Mortgages
The Mortgage Works
BM Solutions
Aldermore
Kensington Mortgages
Leek Building Society

Access your free comprehensive credit report.

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By clicking the button below, you can access your full multi-agency credit report via checkmyfile, which includes data from Equifax, Experian, TransUnion, and Crediva.

Once you click, you’ll be redirected to their site where you can register and download your credit report for free during the initial 30-day trial period*. You can cancel anytime within that period without charge, but if you decide to continue, checkmyfile will charge £14.99 per month thereafter.

This report gives us valuable insight into your credit history, helping us at HTG Mortgages to offer you tailored advice and recommendations based on your situation.

Please note that lenders won’t use this report for your application; they will conduct their own credit checks. If you’re thinking about your options more broadly, our remortgage page and fixed vs variable rates guide may help, or get a mortgage quote.

Related: Mortgage Quote.

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Why use HTG’s mortgage services?

Quick to reply, usually the same working day

We are an independently owned, whole-of-market mortgage broker offering first-charge mortgages

You deal with me personally from the first chat to completion

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