SBD 4 — Bidder's Disclosure (the old Declaration of Interest), Explained
SBD 4 is the Bidder's Disclosure — the Standard Bidding Document most people still call the Declaration of Interest. It is where you disclose any connection between your business and the institution running the tender, or between your business and another bidder. Since 31 March 2022 it does more than that: National Treasury consolidated the old SBD 4, SBD 8 and SBD 9 into this single form, so one document now carries your conflict-of-interest declaration, your past supply chain conduct and your confirmation that you priced the bid independently. The thing that actually causes trouble is almost never the connection itself — it is failing to declare one.

What SBD 4 asks you to declare
SBD 4 is a set of yes/no questions with space to give names and details wherever the answer is yes. Broadly, it asks whether:
- you, or any director, member, partner or shareholder of the bidding business, is employed by the state;
- anyone connected to your business is related to a person involved in the tender — someone who may evaluate, adjudicate or influence the award;
- your business is connected to another bidder on the same tender, through shared directors, shared ownership or family;
- any director or member has a relationship with a person employed by the buying institution.
Where you answer yes, the form asks for the person's name, the institution they work for and the position they hold. The declaration is signed, and it is submitted with your bid as one of the returnable documents.
Who counts as "connected" to the state
Two things surprise people here. The first is how far past the business itself the form reaches: it covers directors, members, partners and shareholders, and their close family — not just the person signing the bid.
The second is how broad "the state" is. It is not only the department that issued the tender. It covers national and provincial departments, municipalities and public entities such as Eskom, Transnet and the water boards. A director whose spouse works for a municipality on the other side of the country is still a connection that belongs on the form, even though it has nothing to do with the tender in front of you.
Declaring a connection is not the same as being disqualified
This is the part that costs people bids, because they get it exactly backwards. SBD 4 is a disclosure form, not an exclusion form. A declared connection goes to the buyer, who assesses whether it creates a conflict for that particular tender. Plenty of declared connections are assessed and the bid proceeds normally.
What creates real risk is a declaration that is later found to be false. The form itself carries a warning to that effect: an untrue declaration can see the bid rejected, any resulting contract cancelled, and the bidder facing further action including restriction from doing business with the state. Weighed against that, disclosing an awkward connection is the cheap option every time.
The practical consequence: never leave SBD 4 out because you think you have nothing to declare. A bid without it is an incomplete bid, and incomplete bids are set aside before price is ever considered.
SBD 4 now absorbs SBD 8 and SBD 9 — check which version is in your pack
This is the detail that catches people working from older guides and older templates. On 31 March 2022 National Treasury consolidated three separate forms into one:
- SBD 4 — Declaration of Interest (your connections);
- SBD 8 — Declaration of the bidder's past supply chain management practices;
- SBD 9 — Certificate of Independent Bid Determination (that you priced your bid alone, without colluding).
All three now sit inside the consolidated SBD 4 Bidder's Disclosure. Instead of asking you a series of yes/no questions about past convictions and restrictions, the current form states upfront that any bidder on National Treasury's Register for Tender Defaulters or List of Restricted Suppliers is disqualified, and your signature certifies your past conduct.
The rollout is uneven, so do not assume. Plenty of tender packs still contain the old separate SBD 4, SBD 8 and SBD 9 — complete all three if that is what you have been given. If your pack has the single consolidated SBD 4, that one form covers all of it. Match the pack in front of you, and complete every part of whichever version it contains. See how all the SBD forms fit together →
Where SBD 4 comes from
You do not source SBD 4 separately. It arrives inside the tender document pack you download from the National Treasury eTenders portal, alongside the other Standard Bidding Documents that bid requires. You complete the copy in that pack, sign it, and return it with everything else on the returnable-documents schedule. The full tender application process, step by step →
Knowing what the form is asking is the easy half. Working through a real tender's pack — every form it includes, in the order the evaluators check them — is what the Tender Ready SA toolkit walks first-time bidders through.
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Get the R399 toolkit → learn to winFrequently asked questions
What is SBD 4?
SBD 4 is the Bidder's Disclosure, the form most people still call the Declaration of Interest. You use it to declare any connection between your business and the institution running the tender, or between your business and another bidder. Since 31 March 2022 it also carries the declarations that used to sit on SBD 8 and SBD 9. It is a returnable document you sign and submit with your bid.
Why do tenders require a Declaration of Interest?
To prevent conflicts of interest and undisclosed favouritism. Because government buys with public money, it needs to know before awarding a contract whether a bidder is connected to the people running the process, or to a competing bidder. SBD 4 puts that on record in writing.
Do I still have to complete SBD 4 if I have no connection to government?
Yes. You complete it and answer no to the questions. The form is only doing its job if every bidder submits one, so an omitted or blank SBD 4 counts as an incomplete bid — which is usually set aside before the price is looked at.
Can I still bid if a director works for government?
Declaring it does not automatically bar you. The buyer assesses the declared connection against that specific tender and decides whether it creates a conflict. What does create serious risk is not declaring it — a declaration later found to be untrue can see the bid rejected and any contract cancelled.
What is the difference between SBD 4 and SBD 9?
There is usually no longer a difference. SBD 9, the Certificate of Independent Bid Determination, was consolidated into SBD 4 on 31 March 2022, along with SBD 8. If your tender pack contains a single SBD 4 Bidder's Disclosure, it covers both. If your pack still lists SBD 8 and SBD 9 separately — and many older packs do — complete all three.
Where do I get the SBD 4 form?
It comes inside the tender document pack you download from eTenders for that specific tender. You do not download it separately — you complete the copy included in the pack you are bidding on.
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