How to run a UK limited company on your own

Running a UK limited company as the sole director means wearing every hat simultaneously — you're the business owner, the compliance officer, the sales team, and the person doing the actual work. Thousands of UK professionals do this successfully every day, but it requires understanding what your obligations are and building systems that keep everything on track without overwhelming you.

This guide covers the practical realities of running a limited company solo — what you're responsible for, what the common pitfalls are, and how to manage it without burning out or missing something important.

What does running a limited company actually involve?

When most people think about running a limited company, they think about the work they sell — consultancy, contracting, design, development, or whatever their specialism is. But running the company itself is a separate, parallel responsibility.

As a sole director, you are legally responsible for:

• Filing annual accounts with Companies House each year
• Filing a confirmation statement annually (formerly the annual return)
• Submitting a Corporation Tax return to HMRC each year
• Running PAYE payroll if you pay yourself a salary
• Submitting VAT returns if you're VAT registered (usually quarterly)
• Maintaining accurate accounting records
• Keeping the company's registered details up to date at Companies House

On top of the legal obligations, there's the day-to-day business management: winning new clients, managing existing ones, delivering work, chasing invoices, and planning ahead.

Most sole directors work with an accountant to handle the financial filings. The accountant takes care of the year-end accounts, Corporation Tax, and often payroll. But the rest — the client management, document organisation, deadline tracking, and daily operations — falls to you.

Companies House obligations for sole directors

Companies House is the UK's register of companies. As a director, you must keep your company's information accurate and file certain documents on time. Missing deadlines results in automatic financial penalties — and in serious cases, striking off.

Confirmation statement (formerly annual return)

Every limited company must file a confirmation statement once a year. This confirms that the information Companies House holds about your company is accurate — registered address, directors, shareholders, and share structure. The deadline is 14 days after the anniversary of your company's incorporation or last confirmation statement. The fee is currently £13 to file online.

Annual accounts

Your annual accounts must be filed with Companies House within 9 months of your company's financial year end. For new companies, the first filing deadline can be up to 21 months after incorporation. The accounts include a balance sheet and, for small companies, a directors' report. Most sole directors use an accountant to prepare these.

Corporation Tax return

Your Corporation Tax return (CT600) must be filed with HMRC within 12 months of your accounting period end. Corporation Tax itself is due 9 months and 1 day after the accounting period ends. This is separate from the Companies House accounts filing, though both are based on the same financial period.

Keeping information up to date

Any changes to your company — registered address, director details, changes to shares — must be notified to Companies House, usually within 14 days. Failing to do this can result in warnings and fines.

Managing clients and projects as a sole director

For most sole directors, client work is the revenue engine of the company. Managing it well — finding new clients, delivering reliably, retaining them — is what determines whether the company grows or struggles.

Building a client pipeline

The most common mistake sole directors make with sales is treating it as something that happens only when the current work dries up. By then it's too late — there's a gap in revenue and a scramble to fill it. The better approach is to maintain a small pipeline of prospects at all times, even when fully booked.

You don't need a complex CRM to do this. A simple record of each prospect — what they need, where they are in the decision process, and when to follow up — is enough to keep you from dropping the ball on warm leads.

Retaining existing clients

Existing clients are the most reliable source of future work. Regular check-ins, proactive communication about upcoming needs, and remembering key dates (contract renewals, budget cycles) all contribute to retention. A record of when you last contacted each client — and a reminder to reach out if you haven't heard from them in a while — is simple to maintain and pays significant dividends.

Tracking contract and invoice status

Sole directors commonly have multiple clients running simultaneously, each at a different stage — some with active projects, some with outstanding invoices, some with renewals approaching. Keeping track of contract end dates, payment terms, and outstanding amounts requires a system. Many directors use a spreadsheet; the better approach is a tool that surfaces this information automatically.

Documents and records every sole director needs to manage

Running a limited company generates a significant volume of important documents — both digital and physical. Losing or misplacing any of these can create serious problems at the wrong moment.

Documents you must keep

• Copies of annual accounts (for at least 6 years)
• Corporation Tax returns and supporting records (6 years)
• VAT records if VAT registered (6 years)
• PAYE records if running payroll (3 years)
• Bank statements and financial records
• Business receipts and expense records
• Contracts with clients and suppliers
• Insurance certificates (employer's liability, professional indemnity, etc.)
• Correspondence from HMRC and Companies House

Organising your documents

The most practical approach is a folder structure that mirrors your compliance calendar — one folder per financial year, with sub-folders for accounts, tax, HMRC correspondence, client contracts, and insurance. Keeping digital copies of physical documents (scanned or photographed) means you can access everything remotely and share with your accountant without posting originals.

Tools that help sole directors run their company

The good news is that running a limited company solo has become significantly more manageable in recent years, as tools built specifically for this audience have emerged. The key is choosing the right tools for each layer of the business, rather than trying to manage everything in a generic spreadsheet.

Accounting software

Xero, FreeAgent, and QuickBooks are the most commonly used accounting platforms by UK sole directors. They handle bank feeds, invoicing, expense tracking, VAT returns, and payroll. Most UK accountants are familiar with all three. FreeAgent is particularly popular with sole directors and contractors and is included free with NatWest/RBS business accounts.

Companies House deadline tracking

The Companies House WebFiling service sends reminder emails, but many directors find these easy to miss — especially if the email goes to an old address. A dedicated tool that surfaces your deadlines on a dashboard you look at daily is more reliable than relying on a single annual email.

Client and pipeline management

A full enterprise CRM is overkill for most sole directors. You need something that tracks your clients and prospects, logs last contact dates, and reminds you when to follow up. A tool that integrates this with your compliance calendar and task list is ideal — so you're not context-switching between multiple applications.

DirectSolo — built specifically for UK sole directors

DirectSolo combines Companies House deadline tracking, client CRM, task management, document storage, and KPI tracking into one platform built specifically for UK limited company directors. It's designed to replace the collection of spreadsheets and browser tabs that most sole directors currently rely on.

The free plan covers Companies House deadlines and basic client records. Paid plans unlock the full platform including document management, pipeline analytics, and accountant collaboration.