An Approval in Principle (AIP) is also known as an Agreement in Principle, Decision in Principle, Mortgage in Principle or a Mortgage Promise. An AIP is useful if you want to know how much you could borrow. If you provide Post Office Money with a few personal details about you and anyone else who will be named on the mortgage we'll give you a statement of how much we'll be able to lend to you in principle (don't worry, we're not committing to anything at this stage). You'll need to request an AIP before completing a full mortgage application.
A Mortgage Offer will set out the terms under which we're prepared to offer you a mortgage. It will be issued once we receive your full application and necessary checks, such as a valuation and confirmation of your details, have been carried out.