Make an overpayment

Making payments on top of your normal monthly payment is known as an overpayment. Overpaying could save you money as you’ll pay less interest over the term of your mortgage.

When your mortgage is on a fixed interest rate, you can normally pay off up to 10% of your outstanding balance without paying an Early Repayment Charge (ERC). The balance is based on the amount outstanding on 31st March of the previous financial year.

Check how making regular or one-off lump sum payments can reduce your monthly payment or length of your mortgage.

Overpayment calculator

You have different options to make overpayments online. Just choose the one that suits you best. When you’re ready, you’ll be taken to a secure payment page, so your details are always protected.

How can I make my overpayment online?

Overpayments up to £12,000 can be made using the button below or through your hub. Payments over this limit will need to be paid via bank transfer.

What details will I need?

To pay online, you’ll need:

  • Your mortgage account number – you’ll find this in your hub or on your Annual Mortgage Statement
  • The postcode of the mortgaged property
  • Your debit/credit card.

When making your payment, please remember:

  • You must pay by 6pm on the last day of the month if you want it applied to your account in the same month
  • If you pay between 6pm and midnight on the last day of the month, it will be applied to your account during the next month. This means when we add the interest to your account for the current month, your payment won’t be included.

This doesn’t affect your credit score.

Can I pay by credit card?

Yes, but think about whether this is your best option. You should bear in mind:

  • Your card company may charge you fees and interest for making the payment
  • Once payments are made, they can’t be refunded
  • Paying by credit card can lead to increased debt. Visit our help and support page if you’re struggling to pay your mortgage.


Make a payment

How do I make my overpayment using my bank account?

Choose one of the options below. Please make sure you use the correct details for your mortgage account.

Please use your mortgage account number as the reference. You’ll find this in your hub or on your Annual Mortgage Statement.

IBAN numbers are only needed if you’re making your payment from abroad.

Please allow up to five working days for your payment to show on your bank account. We’ll write to you once your overpayment has been applied to your account.

For mortgage accounts starting with 82 Sort code: 56-00-05
Account number: 21153876
IBAN: GB78NWBK56000521153876
Sort code: 56-00-05
Account number: 21153884
For all other mortgage account numbers Sort code: 57-11-84
Account number: 53731530
IBAN: GB02NWBK56000553731530
Sort code: 56-00-05
Account number: 41734556
IBAN: GB89NWBK56000541734556

When will you reduce my monthly payment?

We’ll automatically reduce your monthly payment if your payment is £500 or more, or when the balance of smaller overpayments reaches £500. For example, if you overpay £100 per month, we’ll reduce your payment after five months. Until then, your overpayments will be paid to your account, so you’ll pay less interest, but it won’t affect the monthly amount. Once we’ve applied your overpayment to your account, the new payment will take effect from the following month. This means if we apply your overpayment in June, your monthly payment will be lower from July. We’ll confirm this in writing before we make any change to your mortgage.

Can I reduce the length of my mortgage instead?

You can apply to reduce the length of your mortgage if you want to keep your payment about the same as it was before you made your overpayment. Your overpayment must be at least £500 and enough to reduce your term by one month’s payment. Read our reduce your term page for other details.

What happens if I have more than one account on my mortgage?

We’ll apply your overpayment to any interest only accounts then the account with the highest interest rate. Get in touch if you want us to apply your overpayment in a different way. Each account may have a different allowance which you can find in your hub.

It’s always nice to be able to overpay on your mortgage. Before you do, here are five things to bear in mind:

  1. If your mortgage is on a fixed interest rate, you’ll have to pay an Early Repayment Charge (ERC), when:
    • You ask us to apply payments to your mortgage account which are less than £500
    • You pay more than your allowance in any financial year
  2. Details of the ERC that apply to your account can be found in your mortgage Offer.
  3. There are no limits to the amount you can overpay when your fixed rate has ended. Get in touch if your overpayment balance is below £500 and you want it applied to your account.
  4. Once an overpayment has been applied to your account, we’ll write to you to confirm how much your payment will be, unless you apply for a term reduction.
  5. You can apply for a new rate up to six months before your current deal ends. To overpay and switch at the same time, give us a few details and we’ll be in touch.


Your property may be repossessed if you do not keep up repayments on your mortgage