What is mortgage affordability stress testing for homebuyers?

Beyond headline rates

Affordability combines verified income, verified commitments, and stress assumptions designed to cope with future rate rises.

Practical prep

Reduce undisclosed debt surprises before application.

Stabilise income evidence where you are newly self-employed.

Model bills honestly for living costs where lenders ask.

Your broker or lender provides the authoritative outcome.

Using Property Passport UK

Start from the address on [Property Search](/search). When you own or manage the home, [claim your Property Passport](/claim/start) and upload Documents with clear dates and sources. Browse more explainers in the [Property Guides library](/guides). This article is general information, not legal, tax, mortgage, or survey advice.