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Official guidance
Information Disclosure Guide

IDG50000 · Information disclosure Gateways with other government departments

  • IDG50100 · Anti-terrorism, Crime and Security Act 2001 (ATCSA)
  • IDG50200 · Charity Commission
  • IDG50300 · Child Maintenance Service (part of Department for Works and Pensions)
  • IDG50400 · Crime Reduction and Safety Partnership
  • IDG50500 · Criminal Cases Review Commission (CCRC)
  • IDG50600 · Criminal Records Bureau and Disclosure Scotland
  • IDG50700 · Criminal Injuries Compensation Authority (CICA)
  • IDG50800 · Department for Business and Trade (DBT)
  • IDG50900 · Department for Education
  • IDG51000 · Port Health Authorities and Local Authorities - Trade in Animals and Related Products
  • IDG51100 · Department for Transport
  • IDG51200 · Department for Work and Pensions (DWP)
  • IDG51300 · Environment Agency
  • IDG51400 · Financial Review Reporting Panel (FRRP)
  • IDG51500 · Financial Conduct Authority and the Prudential Regulation Authority
  • IDG51700 · Gambling Commission
  • IDG51800 · Gangmasters and Labour Abuse Authority (GLAA)
  • IDG51900 · Government ministers
  • IDG52000 · Health and Safety Executive (including Health and Safety Commission): contents
  • IDG52100 · His Majesty’s Inspectorate of Constabulary
  • IDG52200 · HM Treasury (HMT)
  • IDG52300 · Home Office
  • IDG52400 · Independent Police Complaints Commission (IPCC)
  • IDG52500 · Intelligence Services (MI5, MI6, GCHQ)
  • IDG52700 · Irish Criminal Assets Bureau
  • IDG52800 · Legal Aid Agency (formerly Legal Services Commission)
  • IDG52900 · Local Authorities
  • IDG53000 · Ministry of Defence (MOD)
  • IDG53100 · National Audit Office (NAO)
  • IDG53105 · National Crime Agency (formerly Serious Organised Crime Agency (SOCA)
  • IDG53200 · National Minimum Wage
  • IDG53300 · The National Health Service (NHS) and the NHS Counter Fraud Authority
  • IDG53400 · Competition and Markets Authority (CMA)
  • IDG53500 · Office for National Statistics (ONS)
  • IDG53600 · Office for the Scottish Charity Regulator (OSCR)
  • IDG53700 · Official Receiver
  • IDG53800 · The Parliamentary Ombudsman
  • IDG53900 · Pensions Regulator
  • IDG54000 · Police
  • IDG54100 · Police Investigations & Review Commissioner (PIRC) previously The Police Complaints Commissioners for Scotland (PCCS)
  • IDG54200 · Department for Transport
  • IDG54300 · Revenue and Customs Prosecutions Office (RCPO)
  • IDG54500 · Serious Fraud Office (SFO)
  • IDG54700 · Veterans UK
  • IDG54800 · Student Loan Company
  • IDG54900 · Trading Standards (Local Authorities)
  • IDG55000 · Treasury Solicitor and bona vacantia
  • IDG55100 · Home Office (Border Force)
  • IDG55200 · Enterprise Act 2002
  • IDG55300 · Part 5 of the Digital Economy Act 2017- Contents
  • IDG56000 · Disclosure to the Information Commissioner's Office (ICO)
  • IDG55700 · Disclosure to the Devolved Tax Authorities in Scotland and Wales
  • IDG57000 · The Pension Ombudsman (TPO)
  • IDG58000 · The Trade Act 2021
  • IDG58100 · Border Security, Asylum and Immigration Act 2025 (BSAI)
  • IDG59000 · Sharing Information with Relevant Authorities for the purpose of part 5 and part 8 POCA 2002
  • IDG52600 · Insolvency Service and Redundancy Payment Office
  • IDG54400 · Scottish Crime and Drugs Enforcement Agency
  1. Information disclosure Gateways with other government departments: contents
  2. Information disclosure Gateways with other government departments: National Audit Office (NAO)

IDG53100 | Information disclosure Gateways with other government departments: National Audit Office (NAO)

From HM Revenue & Customs · Information Disclosure Guide

The National Audit Office (NAO) is an independent public body which scrutinises public spending on behalf of Parliament. The NAO audits the accounts of all central government departments and agencies, including HMRC. It reports to Parliament on matters such as the efficiency and effectiveness with which HMRC has used public money.

The NAO has a right of access to documents and materials which it reasonably requires to carry out its functions in relation to HMRC.

Procedure to follow

If you receive a request for information from the NAO (which should be in writing), you should ask them to provide a clear explanation of which of their audits it relates to and why they want to see the documents they have requested. You should then refer the request to the HMRC designated contact point (business co-ordinator) for that audit topic and ensure the disclosure is cleared with a senior manager and your directorate’s Security & Information Business Partner (SIBP). Where possible you should make the information available for NAO to review at HMRC premises.

(This content has been withheld because of exemptions in the Freedom of Information Act 2000)

Legislation which allows disclosure

  • Section 8 National Audit Act 1983

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Confidentiality of HMRC's information on passing to NAO

All NAO Staff have a statutory duty of confidentiality under Section 182 Finance Act 1989. As such NAO may only disclose information obtained under Section 8 National Audit Act 1983 in strictly defined circumstances. HMRC Staff should ensure NAO are fully aware of the restrictions on disclosure and consult Information Strategy where required. See IDG80100 for contact details.

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Further guidance

For further guidance on working with NAO please see the NAO liaison pages.

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