CIDB & CSD Registration

Who needs to register, and why

Any contractor can register on the CIDB Register of Contractors (RoC), but public-sector clients are bound by the Construction Industry Development (CID) Regulations of 2004, as amended, to only award construction contracts to CIDB-registered contractors (CIDB — Overview of the Register of Contractors). If you want to tender for public construction work, registration isn't optional — it's the entry ticket.

Not everyone needs to register, though. Subcontractors are currently exempt, joint venture (JV) entities don't register as a JV (though every JV partner must be individually registered, with a JV Calculator combining their gradings), home builders fall under the NHBRC instead, and labour-only contractors are exempt.

Separately, if you intend to supply goods or services to any organ of state, you need to register on the Central Supplier Database (CSD) — National Treasury's single source of supplier information across all spheres of government. National Treasury frames it simply: “If you are about to tender for a contract, you are a supplier of goods and services” (National Treasury OCPO — CSD page). You only need to register once to do business with government.

Understanding CIDB grading

The Register of Contractors has 9 grading levels, with Grade 9 the highest. There are no qualifying criteria for Grade 1; Grades 2 to 9 require meeting specific financial and track-record criteria. A grade is shown as one digit and two letters — for example, “4GB” — reflecting the maximum tender value you may execute and the class of works you're certified in. Contractors seeking “emerging” classification get a four-letter code instead, such as “4GBPE.”

Your grade is determined by two things: your track record (the largest contract you've completed in the applicable class of works over the past five years) and, from Grade 3 upward, your financial capability (assessed from your last two years of financial statements, using the better of the two years' turnover). Grades 1 and 2 carry no turnover or capital requirement. If you don't have the capital yourself, a third-party financial sponsorship (a guarantee or surety) can substitute — though if the sponsor isn't a financial institution, its sponsorship can't exceed 15% of its net asset value.

Classes of works are identified by abbreviation codes — General Building (GB), Civil Engineering (CE), Electrical Engineering Works – Building (EB) and Infrastructure (EP), Mechanical Engineering (ME), plus a wide range of specialist classes from asphalt works to waterproofing.

Keeping your grading valid

A CIDB grade is valid for 3 years from your registration anniversary, after which you must apply for renewal. During that 3-year period, you must update your grade annually and pay the applicable annual fee (this annual update doesn't apply to Grade 1) — miss it for two consecutive years, and your registration is suspended. Grade 1 registration happens online and is processed within 48 working hours; Grades 2 to 9 are applied for at your nearest CIDB Provincial Office with supporting documents, with a maximum processing time of 21 working days.

Registering on the Central Supplier Database

CSD registration is handled through the secure.csd.gov.za portal. You'll need to supply information across several categories: supplier details, contact details, address details, bank account information, tax information, ownership information (names and ID numbers of directors or members), any association with other suppliers, and the commodities you can supply. A valid email address, ID number, cell phone number and bank account details are mandatory to register.

Once submitted, your information is verified against external data sources — SARS, CIPC, banking systems and Home Affairs — and you're issued a unique CSD supplier number and security code. This automatic verification continues on a regular basis, and you're required to confirm your CSD data is current at least once a year. The upside: once verified electronically, you're not required to submit physical tax clearance certificates or business registration documents to organs of state.

Where CSD meets SARS tax compliance

The CSD's automatic SARS verification pulls your real-time tax compliance status. If your record shows outstanding returns or SARS debt, this can flag you as tax non-compliant on the CSD — a status that can disqualify you from a tender. Suppliers typically obtain a Tax Compliance Status PIN of the “Tender” type via SARS eFiling and supply this PIN, with their tax reference number, in tender documents such as SBD 1. Staying registered on the CSD and staying tax compliant with SARS are two sides of the same tender-readiness coin — see our SARS & Annual Compliance page for how we help keep the SARS side in order.

How it works

1. We assess your track record and financial capability to determine the CIDB grade you genuinely qualify for.
2. We prepare your CIDB application — a fast online submission for Grade 1, or a full supporting-document application to your CIDB Provincial Office for Grades 2–9.
3. In parallel, we register you on the Central Supplier Database with all required supplier, bank, tax and ownership details.
4. We confirm your SARS Tax Compliance Status is in order, since it feeds directly into your CSD status and tender eligibility.
5. We set annual review reminders so your CIDB grade update and CSD data refresh happen on time, every year.

Grades 3–9 also require minimum annual turnover and available capital (assessed from your last two years' financials) — ask us for the full financial capability table for your target grade.

Frequently asked questions

Related services

Sources

• CIDB — Overview of the Register of Contractors
• CIDB — Requirements for Grading
• DLA Piper — South Africa: Top 5 significant legislative changes 2026
• National Treasury OCPO — CSD page
• National Treasury/eTenders — CSD Supplier Leaflet
• CSD Application — Register user
• TenderProSA — Tax Clearance for Tenders