Guide

What you need before you bid

Most of what a public buyer asks for is the same from one tender to the next. Get it together once, keep it current, and each new bid becomes a matter of adapting what you have. Just as useful is knowing what a buyer cannot demand of a small firm, because the law changed in 2025 and many checklists online have not caught up.

Last checked: 6 October 2026

The short list

WhatWhen you need it
Find a Tender registration, with your supplier informationAny tender run under the Procurement Act 2023
Insurance certificates (or quotes for the levels asked)In place by contract award, not before
AccountsMost tenders; audited only if the law already requires yours to be
Health and safety, equality, environmental and data protection policiesMost tenders, in proportion to the work
Cyber EssentialsCentral government and NHS contracts handling personal or government data
Modern slavery statementLegally required at £36 million turnover; smaller firms may be asked about it
Carbon reduction planCentral government contracts above £5 million a year
Three or four case studiesEvery tender with experience questions

Register on Find a Tender

Tenders in England, Wales and Northern Ireland run under the Procurement Act 2023 use the government's Central Digital Platform, which is Find a Tender. It is free. You register once and complete your core supplier information: basic details about your organisation, your economic and financial standing, any connected persons, and whether any exclusion grounds apply to you. A company gives its legal form and the law it is governed by; a sole trader does not.

When a buyer asks for it, you generate a share code on Find a Tender and give it to the buyer, so you do not retype the same information into every tender. Keep it up to date: the Central Digital Platform factsheet explains how it works. The bidding itself usually still happens on the buyer's own e-tendering system: where tenders are published covers those.

Insurance and accounts: what a buyer cannot demand up front

Two rules in section 22 of the Procurement Act 2023 help small firms directly. A buyer cannot require insurance relating to the contract to be in place before it awards the contract. And it cannot require audited accounts from a supplier that is not legally required to have its accounts audited.

Neither means you can ignore them. You will need the cover once you win, at the levels the buyer sets in the tender documents for that work. Ask your broker now what the levels you typically see would cost and how quickly they could be in place. For accounts, every condition must be proportionate to the contract, and there is no longer a fixed turnover rule: winning your first contract explains the financial standing guidance.

Policies, in your own words

Most tenders ask for health and safety, equality and diversity, environmental and data protection policies, and some ask about safeguarding, business continuity or quality management. A buyer is looking for evidence that you have thought about the risks of this work, so a two-page policy that describes what your business actually does beats a downloaded template. Date each one, name who is responsible, and review them every year.

  • Modern slavery. The duty to publish a transparency statement applies at a turnover of £36 million or more (Modern Slavery Act 2015, section 54). Central government and NHS buyers may ask smaller organisations about it only where that is proportionate (PPN 009).
  • Cyber Essentials. Central government and NHS bodies must require it, or equivalent controls, for contracts that handle personal information or certain government data and ICT (PPN 014). It is inexpensive and worth having if you handle data at all.
  • Carbon reduction plan. Required for central government contracts worth more than £5 million a year including VAT. Below that, an environmental policy and some honest measures are usually enough.
  • Quality and other certifications such as ISO 9001 are not legal requirements. Some buyers ask for them on larger or higher-risk contracts; read the conditions of participation before you decide whether it is worth getting one.

Case studies you can adapt

Experience questions are where small firms most often lose marks, usually because the example is vague. Write three or four case studies now, each with the client, the problem, what you did, the result in numbers and a contact who will take a call. Private sector work counts, and a buyer cannot require you to have held a contract with it before. Social value is a section of its own in many tenders: social value for small businesses covers what to write.

Keep it in one place

A folder with your registration details, certificates, policies, accounts, case studies and standard answers, each with a review date, turns a two-week scramble into a two-day bid. Update it every year, and every time you win something worth writing up.

Get ready, then get the right tenders

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Common questions

Before you bid

Do I need insurance before I can bid for a public contract?

Not in place before the award. Under the Procurement Act 2023 a buyer cannot require insurance relating to the contract to be in place before it awards the contract. It can require the cover once the contract is awarded, so know what the levels would cost you and how quickly you could arrange them.

Does a small business need a modern slavery statement to bid?

The legal duty to publish a statement applies to organisations with a turnover of £36 million or more. Central government and NHS buyers may still ask smaller suppliers about modern slavery where it is proportionate, so a short, honest description of how you check your own supply chain is worth having.

Do I need audited accounts to bid?

Only if the law already requires your company to have its accounts audited. A buyer cannot demand audited accounts from a supplier that is not legally required to have them. Most small companies are not, and can offer filed accounts, management accounts or a reference from the bank instead.

Is registering on Find a Tender free?

Yes. Find a Tender is the government's Central Digital Platform and is free to use. Tenders run under the Procurement Act 2023 ask you to register there and share your supplier information, usually by giving the buyer a share code.