Check your credit report before you apply, not after

Most first-time buyers focus entirely on income when thinking about what they can borrow — understandably, since it's the number the whole calculator conversation revolves around. But lenders weigh a second thing just as heavily when deciding what to actually offer you: your credit history.

A thin file, a missed payment from years ago you'd forgotten about, or a simple factual error can be the difference between the enhanced or first-time-buyer boost tier and being quietly defaulted to the standard 4.0-4.5x multiple — even with a strong income. Finding this out from a broker after a soft search, rather than before you start looking at properties, is a common and avoidable source of frustration.

Why checking with one agency isn't enough

The UK has three main credit reference agencies — Experian, Equifax, and TransUnion — and they don't all hold identical information. A lender might pull from any one of them, or a combination, depending on which they use. It's entirely possible for your file to look clean with one agency and carry an error or gap with another.

This is the specific problem a multi-agency report solves: instead of checking three separate places (and potentially paying three separate times), a service like Checkmyfile combines all three into a single report, so you see closer to what a lender might actually see, not just one-third of the picture.

What to actually look for

• Factual errors — a wrong address, a account that isn't yours, a debt marked as unpaid when it's been settled. These are more common than people expect, and disputing them takes time, so finding them early matters.
• Missed or late payments — even small ones, even from several years ago. Most stay on file for 6 years.
• Financial links to other people — a joint account or old joint tenancy can tie your file to someone else's credit history, for better or worse.
• Thin file issues — if you've never had credit (some renters and recent movers to the UK), lenders have less to assess you on, which can work against you as much as a poor history.

What it costs

Checkmyfile offers a free 7-day trial, then £14.99/month, cancelled online any time. That's enough time to pull your combined report, review it properly, and raise any disputes before you need to.