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Modern Slavery Statements

BusinessLast reviewed: 1 April 20255 min

The Modern Slavery Act 2015 requires larger UK businesses to publish an annual transparency statement setting out what steps they have taken to ensure their supply chains and operations are free from modern slavery and human trafficking.

Key points

  • Businesses with a global annual turnover of £36 million or more and operating in the UK must publish an annual Modern Slavery statement.
  • The statement must be approved by the board, signed by a director, and published on your website.
  • There is no financial penalty for failing to publish, but non-compliance is publicly listed and can damage reputation and procurement opportunities.
  • Smaller businesses are not legally required to publish a statement but should still consider their supply chain risks.

Who Must Publish a Statement?

Section 54 of the Modern Slavery Act 2015 requires commercial organisations that supply goods or services, carry on part of their business in the UK, and have an annual turnover of £36 million or more to publish a slavery and human trafficking statement for each financial year. The obligation extends to parent companies on behalf of subsidiaries that do not individually meet the threshold.

The Home Office maintains a public registry where statements must be submitted. The statement must be published on your company website (with a prominent link in the homepage footer) and submitted to the registry each year. While there is currently no direct financial penalty for non-compliance, the government has indicated its intention to introduce penalties and has publicly named non-compliant companies.

What the Statement Must Cover

The Act specifies up to six areas a statement may cover — the government's guidance strongly recommends addressing all of them:

  1. Organisation structure and supply chains — what you do and who your key suppliers are
  2. Policies in relation to slavery and human trafficking
  3. Due diligence processes for identifying and addressing risks
  4. Risk assessment — identifying higher-risk parts of your supply chain
  5. Key performance indicators and how effective your policies have been
  6. Training provided to staff

The statement must be approved and signed by a director (or equivalent) and approved by the board. Statements that say "we have found no issues" without any evidence of due diligence are increasingly criticised by investors and NGOs as inadequate.

Smaller Businesses: Good Practice Without the Mandate

If your business does not meet the £36 million threshold, you are not legally required to publish a statement. However, you may be asked to provide evidence of your anti-slavery approach by large customers who are required to publish statements about their supply chains — if you cannot demonstrate compliance, you may lose contracts.

Good practice for any business regardless of size includes: having a basic modern slavery policy; conducting proportionate due diligence on high-risk supply chains (e.g. those involving overseas manufacturing, labour-intensive industries, or complex subcontracting); training relevant staff; and having a mechanism for workers or suppliers to report concerns. The Gangmasters and Labour Abuse Authority (GLAA) can provide guidance for higher-risk sectors.

Frequently asked questions

Does the threshold apply to UK turnover or global turnover?
The £36 million threshold applies to <strong>global annual turnover</strong> — the total consolidated turnover of the business worldwide, not just UK revenue. This catches large multinational businesses even if their UK turnover is below the threshold. The organisation must also supply goods or services and carry on part of its business in the UK.
What happens if we cannot find any issues in our supply chain?
A statement saying "we have conducted due diligence and found no issues" without explaining the process is considered inadequate. The statement should describe what you have actually done — supplier questionnaires, audits, contractual clauses, worker surveys — and what you found. If you genuinely have low risk, explain why. Investors, NGOs, and procurement teams are increasingly scrutinising statement quality.
What are the most common modern slavery risks in supply chains?
Higher-risk factors include: operations or suppliers in countries with weak labour laws; industries with seasonal or migrant labour (agriculture, construction, hospitality, textiles); complex or long supply chains with limited visibility; and use of labour brokers or gangmasters. Common indicators of modern slavery include workers paying recruitment fees, workers sharing accommodation provided by employers, and excessive deductions from pay.

Official bodies and resources

Companies House

Government

Incorporates and dissolves limited companies, registers company information, and makes it available to the public.

HM Revenue & Customs

Government

Responsible for collecting taxes, paying some forms of state support, and administering national insurance.

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Disclaimer

This information is for general guidance only and does not constitute legal advice. You should seek qualified legal help if your situation requires it.