Construction Industry Development Board
CIDB registration: grades, classes of works and what each one lets you bid
CIDB registration places your business on the Register of Contractors at a grade, from 1 to 9, and in one or more classes of works. Together those two facts decide which public-sector construction tenders you are legally allowed to bid on: the grade caps the contract value, and the class defines the kind of work. A bid outside either is disqualified before it is evaluated on price.
Facts checked against source on . Fees and thresholds are set by the relevant authority and change — confirm current figures before you budget.
Grade and class are two separate limits, and both bind
Contractors routinely talk about "being a Grade 5" as though the grade were the whole story. It is half of it. Your registration is a grade and a class of works, and a tender states both. A Grade 6 CE contractor cannot bid a Grade 6 general building job, because the class is wrong, and a Grade 3 GB contractor cannot bid a Grade 6 GB job, because the value is above the grade.
The grade is a ceiling on the value of a single contract, running from Grade 1 at the entry level up to Grade 9, which carries no upper limit. The steps between them are wide, so the practical question when a tender appears is rarely "am I registered" — it is "am I registered high enough, in this class".
You can hold several classes at once, at different grades, and many established contractors do. Each class is applied for and paid for separately, which is why it is worth being deliberate about which ones you actually tender in rather than collecting them.
The classes of works
There are five principal classes. GB is general building. CE is civil engineering. ME is mechanical engineering. Electrical engineering is split in two: EB for electrical work in buildings and EP for electrical infrastructure. Choosing between EB and EP is a common early mistake, and the two are not interchangeable on a tender.
Alongside those sit specialist classes, designated with an S prefix, covering trades such as waterproofing, structural steelwork, lifts and escalators, glazing, demolition and security fencing. A specialist class is the right registration for a subcontractor whose work is genuinely that trade, and the wrong one for a general contractor who occasionally does it.
Read the tender for the class before anything else. It is the fastest disqualifier there is, and unlike a weak price it is not a judgement call that could go your way.
Grade 1 is deliberately a different process
Grade 1 exists as a barrier-free entry point for contractors with no construction track record. It requires no financial statements and no completed-project history — the application is administrative rather than an assessment — and at the time of writing it costs R450 per class of works, is typically activated within about 48 working hours of a successful submission and payment, and runs for three years without an annual renewal fee.
That design is the reason a new contractor should not delay. There is nothing to prove and comparatively little to pay, and being on the register is what makes the smallest public-sector work available at all.
The trap is treating Grade 1 as a destination. Because the grade caps single-contract value, staying at Grade 1 caps the business. The path up requires exactly the evidence Grade 1 does not ask for, and that evidence has to be accumulated deliberately from the first job.
Grades 2 to 9: financial capability and works capability
From Grade 2 upwards the CIDB assesses two things. Financial capability looks at your best annual turnover across the two years preceding the application, together with available capital — broadly retained income, shareholder loans and net asset value. Works capability looks at the largest single contract you have completed in the relevant class within the last five years.
The works-capability half is where applications most often fail, and the reason is procedural rather than financial: the contract you are relying on has to be registered on the Register of Projects. Work that was genuinely done, genuinely completed and genuinely paid for does not count towards an upgrade if it was never registered. Registering projects as you complete them, rather than assembling them when you want to upgrade, is the single most useful habit for a contractor intending to grow.
Fees rise steeply with grade. At the time of writing, application fees are around R450 at Grade 2 and R750 for Grades 3 to 9, while annual fees scale from roughly R250 at Grade 2 up to about R55,000 at Grade 9. Verification of financials and track record also makes these applications materially slower than Grade 1 — plan on weeks, not days. Confirm current fees on cidb.org.za before you budget, as they are reviewed periodically.
Where CIDB sits among the other requirements
CIDB registration is specific to construction works, and it does not replace anything else. A public-sector construction tender will typically also require registration on the Central Supplier Database, a valid tax compliance status with SARS, and evidence of your B-BBEE standing — and each of those is a separate register with its own failure modes.
The reason to hold all of them current rather than assembling them per tender is that closing dates do not move. A tender that closes in nine days is not enough time to correct a bank verification on the CSD, obtain a TCS PIN and register a historical project to support a grade you have been claiming informally.
Where Industrial Hub fits
Industrial Hub does not apply to the CIDB for you. It stores the grade and classes you hold and checks each tender against them, so a job in the wrong class or above your grade is flagged as one you cannot bid before you download the document pack. CIDB requirements are frequently stated in a tender’s prose rather than a structured field, which is why they are easy to miss when scanning a portal by eye.
Common questions
- What CIDB grade do I need?
- The grade you need is the one the tender specifies, and it is set by the value of that contract. Grades run from 1, the entry level for small works, up to 9, which carries no upper value limit. You cannot bid a contract above your grade in that class, so the grade you need is a function of the work you intend to chase rather than the size of your business.
- What is the difference between Grade 1 and Grade 2 CIDB registration?
- Grade 1 is administrative: no financial statements, no track record, a modest fee per class, and activation usually within about 48 working hours. From Grade 2 upwards the CIDB assesses financial capability from your turnover and available capital, and works capability from the largest single contract you have completed in that class in the last five years.
- How much does CIDB registration cost?
- At the time of writing Grade 1 is around R450 per class of works with no annual renewal, application fees for higher grades are roughly R450 at Grade 2 and R750 for Grades 3 to 9, and annual fees scale from about R250 at Grade 2 to around R55,000 at Grade 9. Fees are reviewed periodically, so confirm the current schedule on cidb.org.za before budgeting.
- What are the CIDB classes of works?
- The five principal classes are GB for general building, CE for civil engineering, ME for mechanical engineering, and two electrical classes — EB for electrical work in buildings and EP for electrical infrastructure. Specialist classes carrying an S prefix cover individual trades such as waterproofing, structural steelwork, lifts, glazing, demolition and fencing.
- Why was my CIDB upgrade refused when I have done the work?
- The usual reason is the Register of Projects. Works capability is assessed on a completed contract that is registered there, so a project that was genuinely built and paid for does not count towards an upgrade if it was never registered. Register projects as you complete them rather than when you want to upgrade.
- Do I need CIDB registration for every government tender?
- No. CIDB registration applies to public-sector construction works. Tenders for supplies, services or professional work generally do not require it, though they will still require CSD registration and tax compliance. Always read the specific tender, which states the grade and class it requires if it requires one at all.
Check a tender against your compliance profile before you bid
Store your CIDB grade, CSD registration, tax status and B-BBEE standing once. Every matching government tender is then checked against them, so the ones you cannot bid are flagged before you open the document pack.