There's a moment in most business loan applications that nobody tells you about. You submit the form, and before any human reads your carefully-written explanation of what the money is for, an automated check pulls your company's credit file and scores it. If the score is poor enough, the application is declined by software. The story you wanted to tell never gets told.
That file exists whether or not you have ever looked at it, and most owners never have. Here is what's in it, who builds it, and what genuinely moves the number.
You don't have one score — you have several
There is no single official business credit score. Several commercial credit reference agencies — Experian, Equifax, Creditsafe and Dun & Bradstreet are the main ones operating in the UK — each build their own file on your company and score it on their own scale. A lender might use one, or two, or feed the raw data into a model of their own.
So 'my credit score is fine' is a statement about one agency's view of you. It is entirely possible to look healthy on one file and thin on another, usually because the agencies collect trade payment data from different suppliers.
Sole traders and partnerships are assessed differently again. With no filed company accounts to analyse, lenders lean much harder on your personal credit file and your business bank statements. The same is true of a limited company under two years old with barely any filing history behind it.
What actually feeds the file
Almost all of it is public record or data supplied by third parties, and most of it is within your control:
**Companies House filings.** Your annual accounts, your confirmation statement, and — critically — whether each was filed on time. Filing dates are public and permanent.
**Court judgments.** CCJs registered against the company on the Register of Judgments, Orders and Fines.
**Trade payment data.** Some suppliers report how promptly you settle their invoices. This is the part most owners have no idea is being watched.
**Director history.** Your other directorships, and any past insolvencies attached to you personally.
**Company profile.** Age, sector, size, and how much your filed figures move around from one year to the next.
Late filing is the cheapest damage to avoid
Companies House late filing penalties for a private company are £150 if you are less than a month late, £375 for up to three months, £750 for up to six, and £1,500 beyond that. They double if you file late in two successive financial years — so a company four months late two years running pays £1,500 rather than £750.
The fine is the smaller problem. The filing date sits on the public record permanently, and it is precisely the sort of signal an automated credit model treats as a warning. A business that can't file its accounts on time reads, statistically, as a business with something to hide or nobody minding the shop. Fair or not, that is how it scores.
Nothing you write in a loan application will undo a pattern of late filings. Fix the filing calendar first, write the application second.
The filing loophole is closing
Small and micro companies have long been able to file heavily stripped-back accounts, keeping the profit and loss account off the public record so competitors and credit agencies saw only a balance sheet. That is ending. From 1 April 2028, small companies must deliver a profit and loss account to Companies House and abridged accounts are abolished; micro-entities must file a P&L too, with an option to keep it off the public register.
The change was pushed back from April 2027 to give companies a full accounting year plus nine months to prepare. The practical point for anyone planning to borrow in the next few years is that your trading figures are about to become far more visible, and a thin balance sheet you could previously hide behind will be read alongside real numbers. That's an argument for accounts that are genuinely presentable, not merely compliant.
A CCJ has a one-month escape hatch
If a customer or supplier takes you to court and wins, the judgment goes on the public register and stays there for six years. Pay the full amount within one month of the judgment, though, and it is removed from the register entirely — you apply for a certificate of cancellation using court form N443. Pay any later than that and the best available outcome is the entry marked 'satisfied', still visible for the full six years.
That one-month window is worth knowing about before it ever applies to you, because it is very easy to spend the first month arguing about whether you should have to pay at all. If you're on the other side of one of these, we've covered what actually happens if a customer takes you to small claims court.
Five things that move the score
**1. File early, not on the deadline.** Early filing costs nothing and removes the single most common avoidable negative on a small company file.
**2. Read your own file before a lender does.** Every one of the main agencies will show you what they hold on your company. Errors are common — a wrong SIC code, a judgment against a similarly-named business, a director who resigned three years ago and is still listed.
**3. Pay suppliers on their terms.** Particularly the larger ones, who are the most likely to report payment data.
**4. Don't max the overdraft the month before you apply.** Facility utilisation is visible, and an overdraft sitting permanently at its limit reads as distress rather than as prudent use of a facility.
**5. Keep the register accurate.** Registered office, directors, shareholders, confirmation statement. Stale data reads as a business nobody is running.
What to do this week
Pull your own file from at least one agency and read it the way a lender would — starting with the filing history, then the judgments, then the payment data. Then check your Companies House record for the next accounts deadline and diarise it with a month to spare.
If borrowing is genuinely on the horizon, it's worth understanding what sits behind the credit decision as well. What investors actually look for before they write a cheque covers the equity side, and personal guarantees on business loans covers the thing most small business lending really rests on in the end, which is you.
Common questions
Does checking my own business credit file lower the score?
No. Looking at your own company's file is recorded, if at all, as a different kind of search from a lender's credit application search, and it does not damage the score. What can leave a mark is a run of formal credit applications in a short space of time, because several hard searches close together reads as a business shopping desperately for money. That's a good reason to use a broker or an eligibility check rather than submitting applications to five banks one after another. Look at your own file as often as you like, ideally well before any application so there is time to correct errors.
How long does it take to improve a business credit score?
Longer than most owners hope, because the strongest inputs are historic. A wrong entry corrected at the agency can update within weeks. A late filing, a CCJ or a run of slow supplier payments works its way out over years rather than months, and CCJs sit on the register for six years unless paid within a month of judgment. The realistic plan is to start roughly twelve months before you expect to borrow: file early, clear disputes, settle any judgments, and keep the overdraft off its limit for the few months either side of the application.
Do sole traders have a business credit score?
Not in the same way. Without a limited company there are no filed accounts and usually very little on a separate business file, so lenders fall back on your personal credit file and your business bank statements. In practice that means your personal payment history — mortgage, credit cards, phone contract — carries much of the weight in a business lending decision. It also means a business setback can damage your personal credit directly, because there is no legal separation between the two. If you are weighing up incorporating, that is one factor among several rather than a reason on its own.
Can I be turned down purely because of my industry?
Yes, and it happens more often than lenders like to admit. Most credit models include sector as an input, and some lenders maintain outright exclusion lists — construction subcontracting, hospitality and anything taking large amounts of customer cash upfront are common examples. It is not a judgement about your particular business; it is a statistical view of failure rates across your sector. The useful response is to stop applying blind. Ask a broker which lenders actively write in your sector, or approach specialists who understand it, rather than collecting hard searches from banks that were never going to say yes.



