Companies House Identity Verification: Why Missing the 18 November Deadline Is a Cash Flow Risk

Companies House identity verification becomes fully mandatory from Wednesday 18 November 2026. The 12-month transition period that began last year ends on Tuesday 17 November, and after that every company director and every person with significant control (PSC) must have verified their identity with Companies House. If you have not, the practical consequences land fast: your company may be unable to file, you cannot be appointed to new roles, and you may be committing an offence simply by continuing to act as a director.

Most of the coverage frames this as a form-filling chore. It is more than that. A blocked filing is the start of a chain that runs straight into your working capital – late-filing penalties, a dented credit score, and in the worst case a breach of the covenants on your invoice finance or bank facility. This guide explains who is caught, what actually stops working if you are not verified, the cash-flow damage that follows, and exactly how to verify this weekend so Monday is a non-event.

What Changes on 18 November

Identity verification was introduced by the Economic Crime and Corporate Transparency Act 2023 (ECCTA), the biggest shake-up of Companies House since it was founded. The aim is to stop fraudsters registering companies and appointing directors under fake or stolen names. The requirement became law on 18 November 2025, and Companies House allowed a 12-month transition period for the millions of people already on the register to catch up. That transition period runs through Tuesday 17 November 2026. From Wednesday 18 November, the rules apply in full with no grace period.

The important thing to understand is that verification is not a one-off national deadline where everyone acts on the same day. For existing directors it has been linked to your company’s confirmation statement: you were expected to verify by the date of your first confirmation statement falling on or after 18 November 2025. For many companies that date has already passed earlier in 2026. The 18 November 2026 date is the backstop – the point at which the transition is over and verification is simply a condition of being a director or PSC at all. If you have been assuming you have until “the 18th”, check your own confirmation statement date, because your personal deadline may be sooner, or may already have slipped by.

Who Has to Verify

Three groups are caught. First, every company director, whether of a tiny single-director company or a large board. Second, every person with significant control – broadly, anyone who owns or controls more than 25% of the shares or voting rights, or otherwise exercises significant influence. Third, members of limited liability partnerships (LLPs), who are treated like directors for this purpose.

If you wear more than one hat – and in a typical owner-managed company the same person is a director and the majority shareholder, so also a PSC – you have to connect your verified identity to each role separately. Verifying once as a director does not automatically cover your PSC position; the PSC confirmation runs through a separate Companies House service. PSCs who are not also directors have their own timing: broadly, the first 14 days of their birth month. Agents who file on your behalf, such as your accountant, will come into scope later, with Companies House currently indicating no earlier than November 2027. For now, the obligation is on the individuals – you and your fellow directors and PSCs – not on your filing agent.

What Actually Stops Working If You Are Not Verified

This is where the compliance point turns into an operational one. From 18 November, an unverified director cannot be appointed to a new company, and an unverified person cannot register a new company. More damaging for an existing business: a company cannot file its confirmation statement unless every one of its directors has verified. One unverified director freezes a filing that the whole company depends on. And an individual who carries on acting as a director after the deadline without verifying may be committing a criminal offence, with the company potentially committing one too. Enforcement can include financial penalties or, at the extreme, prosecution.

Consider Daniel and Steph, who run a plumbing and bathroom-supplies merchant in Bristol turning over £1.9 million as its two directors. Daniel verified back in the spring when his accountant nudged him. Steph, who runs the trade counter and rarely touches the paperwork, kept meaning to and never did. Their confirmation statement is due in the first week of December. Because the company cannot file that statement unless both directors are verified, Steph’s omission freezes the filing for the entire business – Daniel’s diligence counts for nothing on its own. To compound it, they are midway through bringing in an external investor as a third director, and that appointment is blocked too until the house is in order. A ten-minute task that one director overlooked has stalled both the company’s statutory filing and a piece of its growth.

The Cash-Flow Damage Most Coverage Ignores

A frozen filing would be a nuisance if it stopped there. It rarely does, because Companies House filings sit upstream of several things that move cash.

Start with the penalties. If a blocked confirmation statement or a knock-on delay pushes your annual accounts past their filing deadline, Companies House issues an automatic late-filing penalty on a fixed scale: £150 if you are up to a month late, £375 for one to three months, £750 for three to six months, and £1,500 for more than six months. Those figures double if you file late two years running. They are a straight cash cost for nothing in return, and unlike a tax bill you cannot defer or negotiate them.

Take Priya, who runs a £480,000-turnover design consultancy in Leeds and funds payroll between client payments on a £90,000 invoice-discounting facility. Suppose her confirmation statement is blocked because she has not verified, and the distraction lets her accounts drift two months past their deadline: that is a £375 penalty, or £750 if it also happened last year. Irritating, but survivable. The real exposure is the £90,000 facility. Invoice finance and asset-based lending agreements almost always carry a covenant requiring the borrower to keep its statutory filings current and remain in good standing at Companies House. A missed filing can be a technical breach – enough for the lender to review the facility, cut the advance rate, or in a nervous market withdraw it. For a business that meets payroll out of that line, losing even part of it is an immediate working-capital crisis that dwarfs the penalty. If you are weighing how much of your cash cycle rests on a facility like this, our guide to working capital finance options for UK SMEs is worth a read, as is our comparison of invoice finance versus a bank overdraft.

There is a slower-burning hit too. Companies House data feeds the business credit reference agencies – Experian, Creditsafe, Dun & Bradstreet and the rest. Overdue filings or a flag against your company depress your business credit score, and that score is what your suppliers’ credit controllers and your customers’ trade-credit insurers look at. A lower score tends to mean suppliers shorten your terms or ask for payment up front, squeezing your days payable outstanding, while a customer’s insurer may quietly trim the cover it extends on your invoices. Both tighten your cash cycle at exactly the moment you least want it. At the far end of the chain, a company that simply never files risks being struck off the register, at which point its bank accounts are frozen and its assets pass to the Crown – a terminal event for working capital. None of this is likely from a single late filing, but the direction of travel is clear, and it all starts with an identity check you can complete in a quarter of an hour.

How to Verify: The 15-Minute Route

The good news is that verifying is quick, and the direct route is free. There are two ways to do it.

The first is to verify yourself directly with Companies House through GOV.UK One Login. You create or sign in to a One Login account and prove your identity, either using the GOV.UK ID Check app with a biometric document such as a passport or UK photocard driving licence, or by answering security questions, or in person at a Post Office if you would rather not do it online. The service accepts a range of documents and costs nothing. Once you pass, Companies House issues you a personal code – a unique identifier that links your verified identity to your roles. Keep it somewhere safe; you will need to quote it whenever you are appointed to a company, and you give it separately for your director role and your PSC role.

The second route is to verify through an Authorised Corporate Service Provider (ACSP) – typically your accountant, company secretary or formation agent, if they are registered. They carry out the identity check and submit it for you. This is convenient if you already deal with them, though an ACSP may charge a fee where the direct route does not. Either way, the output is the same personal code, and the code is what you or your agent then provides to Companies House against each of your roles.

Your Weekend Checklist

Before Monday

Because today is the weekend and the transition closes on Tuesday, you have time to deal with this before it becomes a Monday-morning scramble. Start by listing everyone in your company who needs to verify – every director, every PSC and, in an LLP, every member – and check who has already done it. Do not assume a co-director has got round to it; as Daniel and Steph found, one gap freezes the whole filing. Then have each unverified person complete GOV.UK One Login verification, which you can do online this weekend, and record each personal code in a safe shared place such as your company secretarial file.

Then Confirm the Codes Are Connected

Verifying your identity and connecting that identity to your company roles are two steps. Make sure each person’s personal code has been provided to Companies House against their director role, and separately against their PSC role where they hold one. Finally, check your next confirmation statement date on the public register and make sure the verification is in place well before it, so the filing goes through cleanly. If your accountant acts as your ACSP, a single email this weekend asking them to confirm everyone is verified and connected may be all you need to send.

What to Do Next

If everyone in your company is already verified, you are done – note the personal codes on file and move on. If anyone is not, treat it as this weekend’s priority rather than next week’s, because the cost of the task is fifteen minutes and the cost of missing it is measured in blocked filings, automatic penalties and a wobble in the facilities your cash flow leans on. It is the cheapest piece of risk management on your desk.

It is also worth seeing this deadline in context. Identity verification is one strand of a wider tightening of the rules around UK business – the same direction of travel as the late-payment reforms we cover in our explainer on the Commercial Payments Bill 2026. Keeping your filings clean is becoming less of a back-office formality and more a condition of trading and borrowing. Once verification is sorted, the most useful follow-on is to make sure a compliance slip never catches your cash short in the first place: a rolling 13-week cash flow forecast will show you whether you could absorb a penalty or a facility review without missing payroll, which is the real question underneath all of this.