What's NatWest's overpayment allowance?

Most NatWest fixed and tracker mortgages allow penalty-free overpayments of up to 10% of the outstanding balance each year. Always check your individual mortgage offer for confirmation.

Can I overpay my NatWest mortgage every month?

Yes. Many NatWest customers set up a regular standing order so an extra amount goes onto the mortgage each month alongside the normal Direct Debit. Make sure your total annual overpayment stays within your allowance.

Does NatWest charge for overpaying?

Not if you stay within the 10% annual cap on a fixed or tracker deal. Above that, an early repayment charge typically applies. On the NatWest Standard Variable Rate, you can usually overpay freely.

MortgageOverpays

NatWest edition

For NatWest mortgage customers

NatWest mortgage overpayment calculator

See exactly how many years and how much interest you'd save by overpaying your NatWest 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

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Overpaying your NatWest mortgage

NatWest is one of the UK's biggest mortgage providers, part of the NatWest Group along with RBS and Ulster Bank. Their overpayment policy is broadly in line with the rest of the high street. Use this calculator to see exactly what overpaying your NatWest mortgage would do to your interest bill and payoff date.

What to know about NatWest overpayments

NatWest typically lets you overpay up to 10% of the outstanding balance per year without early repayment charges during a fixed or tracker deal.
Overpayments can be made via the NatWest app, Online Banking, by standing order, or by phone. The app processes lump sums within one working day.
NatWest's default behaviour is to reduce your mortgage term, keeping your monthly payment unchanged — the most efficient way to save interest.
Going above the 10% cap during a fix usually triggers an ERC of 1–5% of the overpaid amount. Once you roll onto NatWest's Standard Variable Rate, overpayments are generally unlimited and fee-free.

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

NatWest overpayment FAQs

Common questions from NatWest mortgage customers.

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

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