Getting a Decision in Principle (DIP)

A Decision in Principle confirms what we'd be prepared to lend to you. It’s also known as an Agreement in Principle (AIP) or a Lending Certificate.

An estate agent may ask to see your Decision in Principle before they will let you view a property. You’ll be able to download your Decision in Principle certificate from our online application portal.

Check your application and download your documents

If you're applying with an LTV between 85.01% and 95%

  • The most we can lend is £500,000.
  • We will only accept applications if you’re buying a house or a bungalow – not for flats, maisonettes, coach house flats or coach houses.
  • We will only accept applications to buy pre-owned properties, not new build homes.

Existing Nationwide mortgage members

  • If you’re applying for a new mortgage, an Early Repayment Charge (ERC) may apply. You’ll find details of any ERC payable on your latest mortgage offer.
  • If you want to keep your existing product features, moving your existing deal (porting) to your new home could be right for you.

Learn about moving your mortgage


House prices can go up and down. If property prices fall, there's a risk that the equity in your home could drop too. This could affect your future plans.


Think carefully before securing other debts against your home. Mortgages are secured on your home. You could lose your home if you do not keep up payments on your mortgage. Mortgages are subject to underwriting and criteria. Minimum age 18, UK residents only.