Making overpayments
Making a lump sum overpayment or regular monthly overpayments will reduce the balance you owe and the amount of interest you pay. This could help you pay off your mortgage or loan earlier and give you more options if you want to move to another lender in the future.
You can make unlimited overpayments on your mortgage or loan without paying an early repayment charge.
If you’re thinking about paying off your balance in full, there’s more information on our Paying off your account page.
Our overpayments calculator
Our calculator will help to show how overpayments might affect your mortgage or loan. You can use it to show how even relatively small regular monthly overpayments could have a significant effect on the amount of interest you’ll pay over your remaining term.

Overpayment calculator
See the positive impact making overpayments could have on your mortgage or loan.
Whether it’s a regular monthly overpayment or a one-off amount, you might be surprised how much difference it makes.
Using this tool
You’ll need to have an idea of the amount you can afford to overpay. You’ll also need to know the outstanding balance, repayment basis (interest only, part & part or capital & interest), current interest rate and remaining term of your mortgage or loan.
Find out how to quickly see up to date information about your account.
You may have a Together mortgage with an interest only mortgage and an unsecured loan on a capital and interest basis. If so, you’ll need to enter details for each part separately to see the overall impact of making overpayments on your mortgage.
If your mortgage or loan is made up of multiple sub-accounts, you won’t be able to use the calculator and you’ll need to call us to discuss your situation.
Benefits of making overpayments
Overpayments are easy to set up and you won’t be charged any fees by us for making them.
You can make additional payments to reduce your mortgage or loan balance every month or as a one-off lump sum at a particular point.
Each overpayment you make helps reduce your mortgage balance meaning you’ll pay less interest over the term of your mortgage or loan.
If you have a mortgage with us, reducing your balance could also reduce your loan to value ratio (the amount you owe compared to how much your property is worth) which could make it easier for you to remortgage in the future.
Understanding the results
Our calculator shows how making overpayments on a mortgage or loan reduces the total amount of interest paid and balance owed at the end of the term.
The results you’ll see are based on the information you have entered for the overpayment amount, current balance, interest rate, repayment basis and remaining term of your mortgage or loan.
Our calculator uses a simple method to determine the amount of interest you’ll pay, by dividing the total amount of interest you’ll pay over a full year into 12 equal monthly amounts.
Since interest on your mortgage or loan may be calculated differently (such as on a daily basis), then the actual impact of making overpayments on your mortgage or loan may differ slightly to the figures shown in the calculator.
Our calculator also makes several other assumptions about your mortgage or loan, including:
- You make your standard monthly payment every month over the full remaining term.
- You make the same regular monthly overpayment amount (if any) every month over the full remaining term.
- There is no change to your interest rate over the full remaining term
- There are no fees or charges added to the balance you owe.
- There are no other changes to your mortgage or loan which would result in a recalculation of your monthly payment. (e.g. changes to your remaining term or a switch to repayment/interest-only basis)
Since some of these assumptions may not apply to your mortgage, the results of this calculator should only be used as a guide.