An initial indication
An agreement in principle, sometimes called a decision or mortgage in principle, gives an indication of what a lender might consider lending after an initial review of information. It can help you start thinking about a property budget.
Further checks still matter
It is not a formal mortgage offer. A full application and further checks may be needed, including an assessment of the property. Changes to your circumstances or the information provided can affect the outcome.
Questions to ask
- What information has the lender checked?
- What type of credit search is involved?
- How long is the indication valid?
- What will be required for the full application?
Confirm these details with the lender or adviser rather than assuming every agreement works in the same way.
Keep the wider buying budget in view too: the mortgage and deposit are only part of the cost of buying a home.
Sources and further reading
- MoneyHelper — What happens when I get a mortgage in principle?
- MoneyHelper — Mortgage fees and moving costs
Sources checked on 25 October 2026. General information only; this article is not a personal mortgage recommendation.