What's Nationwide's overpayment limit?

Most Nationwide fixed and tracker mortgages allow penalty-free overpayments of up to 10% of the original loan amount each year. Always confirm in your mortgage offer — older products vary.

Are Nationwide overpayments reduced from term or payment?

Nationwide normally applies overpayments to reduce the term while keeping your monthly payment the same, which saves you the most interest. You can request a payment reduction instead via Internet Bank or by phone.

How quickly do Nationwide overpayments reduce my balance?

Lump sums are usually credited the same day or next working day. Regular overpayments via standing order reduce your balance the day they arrive, so interest savings start straight away.

MortgageOverpays

Nationwide edition

For Nationwide members

Nationwide mortgage overpayment calculator

See exactly how many years and how much interest you'd save by overpaying your Nationwide mortgage — modelled with their typical 10% annual allowance.

Your mortgage

UK calculator

Outstanding balance

Interest rate

Term left

yrs

Monthly overpayment

The amount you'd add on top of your normal payment each month.

Estimated monthly payment£1,254

Your overpayment result

You'll be mortgage-free 6 years 9 months earlier
and save £46,940 in interest.

New payoff

September 2044

was June 2051

Total interest

£109,338

was £156,277

Balance over time

Without overpaying With overpaying

	Without	With overpay
Term	25 years	18 years 3 months
Total interest	£156,277	£109,338
You save		£46,940 · 6y 9m

Want to clear it even faster?

A lower interest rate could save you thousands more on top. See if you could remortgage to a better deal.

Check remortgage rates

We may receive a commission if you remortgage through a partner broker. This never affects the rate you're offered.

Overpaying your Nationwide mortgage

Nationwide Building Society is the UK's largest building society and a popular choice for fixed-rate mortgages. Their overpayment rules are member-friendly — but there's still a cap during a fix. Use this calculator to see how much faster you could be mortgage-free by overpaying your Nationwide mortgage.

What to know about Nationwide overpayments

Nationwide typically lets you overpay up to 10% of your original loan amount per year without early repayment charges while on a fixed or tracker deal.
Some older Nationwide deals reset the allowance based on the anniversary of your mortgage start date — newer deals usually use the calendar year.
You can make overpayments via the Nationwide Internet Bank, app, by phone, or by setting up a standing order. There's no minimum overpayment amount.
Once on the Standard Mortgage Rate (SMR) or Base Mortgage Rate (BMR), unlimited overpayments are generally allowed with no fees.

These are general guidelines — the exact allowance and any early repayment charges depend on your specific Nationwide mortgage product. Always check your mortgage offer or contact Nationwide before making a large overpayment.

Nationwide overpayment FAQs

Common questions from Nationwide mortgage customers.

Embed this calculator on your site

Free to use on any website — blog post, finance guide, comparison page. Paste this snippet into your HTML and the Nationwide overpayment calculator will appear.

<iframe
  src="https://mortgageoverpays.com/embed/overpayment-calculator/nationwide"
  title="Nationwide Mortgage Overpayment Calculator"
  width="100%"
  height="1100"
  style="border:0;max-width:880px;width:100%"
  loading="lazy"
  referrerpolicy="no-referrer-when-downgrade"
></iframe>

The widget is fully responsive and links back to MortgageOverpays. No tracking scripts or cookies beyond what's needed for the calculator to run.

Other UK lender calculators

Halifax Santander Barclays NatWest HSBC Lloyds Bank TSB Virgin Money