This public procurement record has 3 releases in its history.

Award

25 Sep 2026 at 19:28

Award

28 Feb 2026 at 22:05

Tender

15 Aug 2025 at 19:50

Summary of the contracting process

The National Audit Office (NAO), the UK’s independent public spending watchdog, buys financial audit and assurance services for public-sector bodies. Partner firms audit defined portfolios of entities across 14 areas: the Crown Estate, Northern Ireland, complex provisions, National Savings & Investments, Defra, health, pensions, three charity portfolios, infrastructure, debt management, Ministry of Justice entities and UK Export Finance. The work supports parliamentary accountability and better public-sector financial reporting and management. Audits must apply internationally recognised standards while addressing the public-sector reporting framework, including the Government Financial Reporting Manual, and checking that spending is authorised and used for its intended purpose. The delivery location is across the United Kingdom.

The open-procedure procurement is complete: awards were made on 25 February 2026, and contracts have been signed. Forvis Mazars won the Crown Estate portfolio (£3,974,103 gross) and, following a split of the health lot, audits for NHS Blood and Transplant and NHS Business Services Authority (£2,703,351.87 gross). EY won Northern Ireland (£3,343,918.46), health audits for the Care Quality Commission and NHS Counter Fraud Authority (£2,703,351.87), and Ministry of Justice entities (£3,567,258.17). KPMG won complex provisions (£6,954,679.70), National Savings & Investments (£4,739,945.39) and debt management (£4,905,533). Grant Thornton won Defra entities (£3,618,089.32) and infrastructure (£5,919,757.12); Deloitte won pensions (£10,894,051.98) and UK Export Finance (£6,785,192.35); PwC won all three charity portfolios (£3,311,752.24, £3,146,164.63 and £2,152,638.95 respectively). Contracts run from 1 September 2026 to 31 August 2029, with options for two further 12-month extensions through 31 August 2031. The original procurement estimate was up to £68.293 million including VAT. Quality was the award criterion; economic and technical selection criteria also applied. Suppliers could bid for up to eight lots.

This award shows demand for specialist public-sector financial audit delivered as a portfolio of engagements, with scope spanning distinct government departments, agencies, public bodies, charities and complex financial areas. A credible competitor will need an established audit practice able to allocate experienced teams across a defined portfolio and meet the NAO’s quality-control expectations. The selected firms had to demonstrate a proven record of International Standards on Auditing-compliant audits; delivery must also reflect public-sector accounting rules and test regularity, not just financial statements. Suppliers need the capacity to manage audit milestones, reports and shadow certificates to agreed timetables, maintain satisfactory engagement quality so work can proceed to Comptroller and Auditor General certification, and achieve satisfactory feedback from audited bodies. The multi-lot structure indicates scope to compete for selected portfolios, while awards to large audit firms show the strength of established providers in this market.

How relevant is this notice?

Notice Information

Notice Title

CPT_25_02 Financial Audit and Assurance Services Contract

Notice Description

The National Audit Office (NAO) is the UK's independent public spending watchdog. The NAO supports Parliament in holding government to account and helps improve public services through its high-quality audits. The NAO reprocured the Financial Audit and Assurance Services to support the high-quality delivery our portfolio of financial audits within the public sector. Financial Audit and Assurance Services Contract NAO sought to continue working in partnership with supplier firms to deliver high quality audits, which support effective accountability and lead to better financial reporting and financial management by public bodies. NAO plan to contract out a series of audit engagements through a lot based structure. The Financial Audit and Assurance Services Contract will also include provision for the opportunity to procure additional financial audit related services throughout the lifetime of the contract. For audit engagements under the contract, the Comptroller and Auditor General (C&AG) will retain overall responsibility for signing the audit opinion and the NAO will work with supplier firms to ensure audit and assurance services are carried out in line with the relevant standards and quality expectations. Audits will need to be carried out to internationally recognised auditing standards but also adapted to the public sector reporting framework, which includes the Government Financial Reporting Manual, and checking that transactions have been applied to the purposes intended by Parliament and conform to the authorities which govern them ('regularity'). The National Audit Office (NAO) will be awarding Financial Audit and Assurance Services contracts across a number of lots. Under the Financial Audit and Assurance Services contract Partner Firms will deliver audit services for a defined portfolio of audited entities. The contracts will be awarded to experienced Partner Firms who have a proven record of delivering ISA (International Standards on Auditing) compliant audits. The new Financial Audit and Assurance Services contract will cover the provision of audit services from the 2026-27 audit cycle (year ended 31 March 2027 (unless specified otherwise)). The Financial Audit and Assurance Services Contract will initially cover 3 audit cycles from 2026-27 to 2028-29 with the option to extend for a further 2 audit cycles up to 2030-31. All audits within the lots have a 31 March year end, unless specified otherwise. NAO sought Partner Firms to provide audit services under the following 14 lots: * Lot 1 Crown Estate * Lot 2 Northern Ireland * Lot 3 Complex Provisions * Lot 4 National Savings & Investments * Lot 5 Defra (Department for Environment, Food & Rural Affairs) Entities * Lot 6 Health * Lot 7 Pensions * Lot 8 Charities 1 * Lot 9 Charities 2 * Lot 10 Charities 3 * Lot 11 Infrastructure * Lot 12 Debt Management * Lot 13 Ministry of Justice (MOJ) Entities * Lot 14 United Kingdom Export Finance (UKEF) Interested suppliers were able to submit a bid for the lots of their choice (maximum of 8 lots). This means if a single supplier bids for the maximum 8 lots and is the preferred supplier based on the award and price evaluation on all 8 lots; they would be awarded all 8 lots that they have bid for. However suppliers were not be permitted to submit bids for more than 8 lots. The new contract will run for an initial period of 3 years from Tuesday 1st September 2026 until Friday 31st August 2029 with the option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031 with the estimated overall value of the contract being up to PS68.293m inclusive of VAT (PS13.659m per annum). No guarantee is given as to the actual value of the contract. This figure includes an element of contingency and assumptions over additional services that may be procured in addition to contracted-out audit engagements as set out in Appendix A - Statement of Requirement.

Lot Information

Crown Estate

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

Northern Ireland

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

Complex Provisions

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

National Savings & Investments

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

Defra Entities

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

Health

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

Pensions

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

Charities 1

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

Charities 2

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

Charities 3

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

Infrastructure

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

Debt Management

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

Ministry of Justice (MOJ) Entities

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

United Kingdom Export Finance (UKEF)

Renewal: There will be an option to further extend for a period of up to 2 years (by 2 periods of 12 months) until Sunday 31st August 2031

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-058956
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/091201-2026
Current Stage
Award
All Stages
Tender, Award

Procurement Classification

Notice Type
UK7 - Contract Details Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Open
Procurement Method Details
Open procedure
Tender Suitability
SME, VCSE
Awardee Scale
Large

Common Procurement Vocabulary (CPV)

CPV Divisions

79 - Business services: law, marketing, consulting, recruitment, printing and security


CPV Codes

79210000 - Accounting and auditing services

Notice Value(s)

Tender Value
£55,055,833 £10M-£100M
Lots Value
£55,055,833 £10M-£100M
Awards Value
£56,837,795 £10M-£100M
Contracts Value
£56,911,047 £10M-£100M

Notice Dates

Publication Date
25 Sep 20261 weeks ago
Submission Deadline
10 Nov 2025Expired
Future Notice Date
Not specified
Award Date
25 Feb 20267 months ago
Contract Period
1 Sep 2026 - 31 Aug 2029 3-4 years
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Complete
Awards Status
Active
Contracts Status
Active

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
National Audit Office
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
LONDON
Postcode
SW1W 9SP
Postcode Area
South West London
Country
England

Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI3 Inner London - West
Small Region (ITL 3)
TLI35 Westminster and City of London
Delivery Location
Not specified

Local Authority
Westminster
Electoral Ward
Pimlico North
Westminster Constituency
Cities of London and Westminster

Supplier Information

Number of Suppliers
6
Supplier Names

Forvis Mazars LLP

Ernst & Young LLP

KPMG LLP

Grant Thornton UK LLP

Deloitte LLP

PricewaterhouseCoopers LLP

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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