UK Company Financial Data from Companies House: What You Actually Get

All UK company financial statements are available for free through Companies House. You can search any company by name or number at find-and-update.company-information.service.gov.uk and download their filed accounts as a PDF. No registration or subscription is needed. For programmatic access, Companies House also provides a free REST API (600 requests per 5 minutes) and free daily bulk downloads of all electronically filed accounts in iXBRL/XBRL format. The UK is the only major economy where all company filings, bulk data, and API access are completely free.

It depends on the company's size. Large and medium companies file full financial statements including a balance sheet, profit and loss account, cash flow statement, directors' report, auditor's report, and detailed notes. This gives you revenue, cost of sales, operating expenses, and net profit. Small companies file only a balance sheet with limited notes — no revenue, no P&L, no cash flow. Micro-entity companies file only a minimal balance sheet showing total assets, liabilities, and equity. Since the majority of the UK's 5+ million companies are classified as small or micro, most filings do not contain revenue or profitability data.

No. Under current UK filing rules, small companies (turnover under £15 million, balance sheet under £7.5 million, fewer than 50 employees) are not required to file a profit and loss statement. Their publicly filed accounts contain only a balance sheet — total assets, liabilities, and shareholder equity. Revenue, cost of sales, gross margin, operating expenses, and net profit are not disclosed. This is the single biggest limitation of UK company financial data and affects the majority of companies on the register. The government planned to require P&L filing for small companies from April 2027 under the ECCTA 2023, but this reform is currently under review and has been postponed indefinitely.

The Companies House API is a free REST API that returns company profile data, officer information, filing history, charges, insolvency records, and Persons with Significant Control (PSC) data in JSON format. It requires a free API key and is rate-limited to 600 requests per 5 minutes. However, the API does not return parsed financial line items — it does not give you balance sheet totals, revenue, or profit figures directly. To get actual financial numbers, you need to use the API to locate the filing document, download it (usually as PDF or iXBRL), and parse the financial data yourself. For bulk extraction, the daily XBRL download product is more practical than the API.

Companies House publishes a free bulk accounts data product at download.companieshouse.gov.uk. It includes daily ZIP files (published each morning, Tuesday through Saturday) and monthly ZIP files covering the previous 12 months. Each ZIP contains individual account filings in iXBRL (.html) or XBRL (.xml) format. Approximately 97% of electronic filings are in iXBRL. These files are both human-readable (they render in a web browser) and machine-parseable (they contain embedded XBRL taxonomy tags). You will need an XBRL parser to extract structured financial line items. The bulk product only includes electronically filed accounts — approximately 60–75% of total annual filings. Paper and scanned PDF filings are not included.

Companies House reports that only 60–75% of the approximately 2.2 million annual account filings are submitted electronically in XBRL or iXBRL format. The remaining 25–40% — between 550,000 and 880,000 sets of accounts per year — are filed on paper or uploaded as scanned PDF images. These paper filings are stored as image-based PDFs that contain no machine-readable text. They are excluded from the bulk XBRL download product entirely. To extract financial data from these filings, you need optical character recognition (OCR) to convert the scanned images into text, followed by AI-based parsing to identify and structure the financial line items. Older filings are disproportionately non-digital, so building 5+ years of history for smaller companies often requires processing image PDFs.

UK private companies have 9 months after their financial year-end to file accounts with Companies House (6 months for public companies). Most companies file close to the deadline. Once filed, the accounts typically appear on the register within a few days and are included in the next daily XBRL bulk download. This means the most recent financial data available for any given company is typically 6 to 15 months old. There is no quarterly or interim reporting requirement for UK private companies, so statutory accounts are the only public financial data available. For time-sensitive use cases like credit monitoring or active deal due diligence, this data lag is a significant constraint.

Yes. Since 2016, UK companies are required to identify and file details of their Persons with Significant Control (PSC) — individuals who hold more than 25% of shares or voting rights, or who otherwise exercise significant control over the company. This PSC data is publicly accessible through the Companies House web portal, the REST API, and a free bulk JSON download. The UK is one of the few countries in the world where beneficial ownership data is fully public. By contrast, most EU countries restricted public access to UBO registers following the 2022 European Court of Justice ruling, and the US only began collecting beneficial ownership data in 2024 through FinCEN with no public access.

The Economic Crime and Corporate Transparency Act 2023 (ECCTA) included provisions that would require all small companies to file profit and loss accounts and directors' reports for the first time, eliminating the option to file abridged or filleted accounts. This was originally expected to take effect from April 2027. However, in January 2026, Companies House confirmed that these changes will not be introduced in April 2027 and that the reforms are still under review. No new timeline has been announced. Companies will receive at least 21 months' notice before any new requirements take effect. If and when implemented, this would be the most significant expansion of UK financial transparency in decades — adding revenue and profitability data for millions of companies that currently file only a balance sheet.

If a US (or any non-UK) company operates a subsidiary incorporated as a UK limited company, that subsidiary must file annual accounts with Companies House under UK rules — regardless of the parent company's home jurisdiction or the fact that the US has no equivalent public filing requirement. This is a widely used technique in compliance, credit risk, and due diligence workflows. For example, if you cannot access financial data on a US-headquartered company directly, checking whether it has a UK subsidiary (searchable by name on Companies House) can provide balance sheet data and, if the subsidiary is medium or large, full P&L and cash flow information. The same approach works for Chinese, Japanese, or other foreign parent companies with UK operations.

Full accounts include a complete balance sheet, profit and loss statement, cash flow statement, directors' report, auditor's report (if applicable), and detailed notes covering accounting policies, fixed assets, debtors, creditors, and related-party transactions. Abridged accounts are a reduced filing option available to small companies — they include only a summarised balance sheet and limited notes. There is no profit and loss statement, no cash flow, no directors' report, and no auditor's report. Micro-entity accounts are even more limited: a bare-minimum balance sheet showing total assets, liabilities, and equity with no notes at all. The practical impact is that abridged and micro filings tell you what a company owns and owes, but not what it earns or spends.

As of March 2025, Companies House maintains records of over 5.44 million active companies. This includes approximately 5.11 million private limited companies (Ltd), around 4,000 public limited companies (PLC), approximately 49,000 limited liability partnerships (LLP), and about 5,400 registered branches of overseas companies. The register has grown by approximately 1.67 million companies over the past decade. Around 2.2 million sets of financial accounts are filed each year, with approximately 5,000 electronic filings processed per day.