The Companies House phone number is 0303 1234 500, and it connects you to their Cardiff-based contact centre. But getting through is only half the story — knowing why you're calling, what to have ready, and whether a call is even the right route can save you a significant amount of time.
This article covers how to contact Companies House by phone, what SMEs typically call about, what the alternatives are, and how the administrative burden of running a registered business connects to the broader cost of running Google Ads effectively.
Companies House Phone Number and When to Use It
The official Companies House phone number for general enquiries is 0303 1234 500. Lines are open Monday to Friday, 8:30am to 6:00pm. Calls are charged at local rates, so they should be covered by most inclusive phone plans.
Before you dial the companies house phone line, it is worth knowing which service you actually need. Companies House covers company registration, annual confirmation statements, filing accounts, and changes to registered details. If your query relates to tax, VAT, or PAYE, that falls under HMRC — a separate government department entirely with its own contact details.
For straightforward queries — checking a company number, understanding filing deadlines, or querying a rejection notice — the Companies House WebFiling service and their online help centre resolve the majority of issues without a call. The phone line is most useful when you have received a formal notice, have a filing that has been rejected without a clear reason, or need to discuss a strike-off action that is already in progress.
Having your company registration number, registered address, and the name of any relevant directors to hand before you call will speed things up considerably. The contact centre handles high volumes and they cannot look up accounts without identifying information.
What SMEs Actually Call Companies House About
After nine years running a marketing agency, we dealt with a fair number of company administration tasks — new incorporations, address changes, and the occasional panicked call about a missed filing. The companies house phone line came up more than you might expect, and the calls almost always fell into one of a handful of categories.
The most common reason SMEs call is to chase a filing confirmation or query why a document submitted through WebFiling has not been processed. Processing times can vary, particularly around peak periods like the financial year-end rush in the autumn. Companies House publishes current processing times on their website, which is worth checking before calling.
The second most common reason is strike-off queries. If a company has not filed its confirmation statement or accounts, Companies House can initiate a strike-off process. A letter arrives at the registered address, and if that address is not being monitored — something that catches many SMEs out when they use a registered agent — the first a director knows about it can be a statutory notice with a tight deadline. In these cases, the companies house phone line is the right first step.
Director and shareholder changes, name changes, and SIC code queries also generate a reasonable volume of calls. Most of these can be handled online, but there are edge cases — particularly with changes involving dissolved companies or complex share structures — where speaking to someone is genuinely faster.
| Query Type | Best Channel | Phone Useful? |
|---|---|---|
| Check company number | WebFiling or Companies House search | No |
| Filing confirmation chase | Online processing tracker | Sometimes |
| Strike-off notice received | Phone or formal objection form | Yes |
| Director/address change | WebFiling | Rarely |
| Rejected filing query | Phone or email | Yes |
| Account filing deadline | Online help centre | No |
Alternative Ways to Reach Companies House
The companies house phone line is not always the fastest route. For many queries, the online services are quicker and leave a paper trail, which matters if you are dealing with a compliance issue.
Email: enquiries@companieshouse.gov.uk handles general queries. Response times vary but are typically within a few working days for non-urgent matters.
WebFiling: The WebFiling service at find-and-update.company-information.service.gov.uk allows you to submit and amend filings directly. Most routine tasks can be completed here without any contact with the team.
Live chat: Companies House offers a live chat function during office hours via their main website. For straightforward questions this is often faster than the phone line, with shorter wait times during mid-morning slots.
Post: For formal objections to strike-offs or requests involving physical documents, written correspondence to Companies House, Crown Way, Cardiff, CF14 3UZ remains the appropriate channel. Always send recorded.
For SMEs who use a registered agent or company secretary service, many of these queries will be handled on your behalf. If you are incorporating for the first time, it is worth considering whether that overhead is worth outsourcing — the fee is usually modest and removes the need to monitor filing deadlines yourself.
See also our related article on Company House Number: What SMEs Actually Need and Call Companies House: What SMEs Actually Need for more detail on specific contact scenarios.
What Running a Registered Business Costs in Practice
This is where the companies house phone number question connects to something SMEs deal with constantly: administrative overhead. Every hour spent on compliance, filing, and company administration is an hour not spent on the thing that actually generates revenue — marketing, sales, and customer delivery.
The same logic applies to Google Ads. Most SME owners we have worked with over the years fall into one of two patterns: they either spend too much time managing campaigns manually (logging in daily, adjusting bids, trying to interpret search term reports) or they hand it to an agency and lose visibility of what is actually happening with their budget.
How Overtime manages Google Ads for SMEs shows a different approach — an AI agent that handles bid adjustments, pauses underperforming keywords, reallocates budget between campaigns, and sends weekly summaries. No manual login required, no retainer invoices to query.
If you are spending time on both company administration and Google Ads management, the cumulative drain on your attention is significant. Reducing either — or both — is not about cutting corners. It is about being deliberate with where your focus goes. For a realistic view of how much Google Ads actually costs for SMEs, the numbers are often more accessible than agencies suggest.
What Does Not Work When Contacting Companies House
This is worth saying plainly because it comes up regularly. There is no direct email address for individual processing teams within Companies House. You cannot email a specific caseworker. You cannot escalate a routine query by emailing a director or department head — all external correspondence routes through the central enquiries address.
Similarly, the companies house phone line cannot expedite standard processing times. If your accounts were filed on time but have not yet appeared as processed, calling will not move them up the queue. The team can confirm receipt and give you an estimated processing date, but that is the extent of it.
Social media is not an appropriate channel for compliance queries involving your company's filing history. Companies House maintains a presence on X (formerly Twitter) but this is for general information only.
If you have missed a filing deadline, do not wait. Companies House issues financial penalties for late accounts, and these escalate quickly. Filing late — even if you cannot pay the penalty immediately — stops further penalties accruing. The companies house phone line can confirm the current penalty position and outline your options.
For broader context on managing the costs that come with running Google Ads alongside your business admin, our guide on ad cost on Google for SMEs is a useful reference point. And if you are thinking about how paid search fits into your wider marketing spend in 2026, the best way to advertise your business covers the trade-offs across channels.
Overtime is built for SMEs who want their Google Ads managed without the overhead of an agency or the time cost of doing it themselves. See Overtime's pricing to understand what that looks like in practice.
If you have already searched for the companies house phone number and found what you need, the next most useful thing you can do today is audit where else your business is losing time to administrative tasks — including paid advertising — and decide which of those you can hand off without losing control.
Learn how Overtime manages Google Ads and see whether it fits the way your business already operates.
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Frequently Asked Questions
What is the Companies House phone number?
The Companies House phone number is 0303 1234 500. Lines are open Monday to Friday, 8:30am to 6:00pm, and calls are charged at local rates, meaning they are included in most standard phone plans.
How long does Companies House take to answer the phone?
Wait times vary depending on the time of day and time of year. Calling mid-morning on a Tuesday or Wednesday tends to result in shorter waits. Avoid calling in late September and October when filing volumes peak.
What should I have ready before calling Companies House?
Have your company registration number, registered company name, and registered office address ready before you call. If you are querying a specific filing, having the reference number from your WebFiling submission will help the team locate it faster.
Why should I use the online service instead of the Companies House phone line?
The online WebFiling service handles the majority of routine tasks — filing accounts, confirmation statements, and director changes — faster than a phone call and leaves a clear record of submission. The phone line is better suited to complex or urgent situations, such as a strike-off notice or a rejected filing with no clear explanation.
Can I dispute a Companies House penalty by phone?
You can call to understand your penalty position and the options available, but formal appeals must be submitted in writing. Companies House provides a late filing penalty appeal form which should be completed and returned to their Cardiff office, ideally sent by recorded delivery.