What are the UK company size thresholds from 6 April 2025?

For financial years beginning on or after 6 April 2025, the micro thresholds are £1 million turnover, £500,000 balance sheet total and 10 employees. The small thresholds are £15 million turnover, £7.5 million balance sheet total and 50 employees. The medium-sized thresholds are £54 million turnover, £27 million balance sheet total and 250 employees. A company normally meets a size category where it meets at least two of the three criteria.

Does this checker determine audit exemption?

No. Company size is only one part of audit exemption. Group membership, ineligible company status, shareholder requests, articles of association and other rules may change whether an audit is required.

UK Company Size Checker

Check whether a UK company is micro, small, medium-sized or large using the monetary size thresholds for financial years beginning on or after 6 April 2025.

Important: This checker provides an indicative size assessment only. It does not determine audit exemption, filing obligations or whether the company is ineligible. Group companies, first-year companies and companies moving between size categories may need further analysis.

Company size tool

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Thresholds

Main size limits from 6 April 2025

For a financial year beginning on or after 6 April 2025, a company normally falls within a size category when it meets any two of the three criteria.

Category	Turnover	Assets	Employees

For periods beginning before 6 April 2025: micro was £632k turnover and £316k assets; small was £10.2m turnover and £5.1m assets; medium-sized was £36m turnover and £18m assets. Employee limits were unchanged at 10, 50 and 250 respectively. Use the dropdown in the checker when assessing an earlier period.

FAQs

UK company size frequently asked questions

Helpful points to consider when using the size result for reporting or audit planning.

Can a company change size category immediately?

The two-year rule can affect changes in size status. The 2024 transitional provision helps companies benefit from the new thresholds for financial years beginning on or after 6 April 2025 by treating the new thresholds as if they applied in the previous financial year when considering the consecutive-year test.

Does small company status automatically mean audit exempt?

No. Audit exemption depends on further Companies Act rules. Group membership, ineligible company status, shareholder requests and the company's articles can change the outcome.

What is balance sheet total?

Balance sheet total means total assets. It is not net assets.

How is the monthly average number of employees calculated?

The monthly average number of employees is generally calculated by adding together the total number of employees for each month of the financial year and dividing by the number of months in the period. Both full-time and part-time employees are included, and part-time staff are counted as employees rather than being converted into full-time equivalents. The figure is usually based on persons employed under contracts of service.

Does this work for groups?

This calculator is for a single company. Group size assessments can use net or gross thresholds and require consolidation-specific analysis.