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Unlock NCA Categories: How to Register as a Contractor
Every builder must register with NCA before taking up work in Kenya.

The National Construction Authority (NCA), established under Act No. 41 of 2011, is mandated to register contractors and maintain database of certified builders in Kenya.
This aims to weed out rogue contractors and reduce widespread malpractices that have frequently caused building collapses in Kenya and delays in many key state projects.
If you want to work legally, obtain government contracts or avoid penalties, it is important to understand the NCA categories and how to register with the Authority.
Why register with the NCA?
Registering with the National Construction Authority means:
i) You are legally allowed to work as a contractor in Kenya.
ii) You are more likely to qualify for big projects without getting blocked.
iii) You help keep the industry safe by reducing rogue contractors and preventing building failures.
NCA Registration Requirements
Here are the registration requirements for builders operating in Kenya, including fees, charges, and the different contractor categories and classes.
Local Contractors:
To register with the NCA, local contractors must meet these requirements:
i) Legal Entity: Must be a registered business (limited company, partnership, or sole proprietorship) with a certificate of incorporation.
ii) Technical Personnel: At least one technical director must have relevant qualifications and experience in construction. CVs must be provided.
iii) Tax Compliance: Must submit valid PIN, VAT, and Income Tax Compliance Certificates.
iv) Bank Account: Must show proof of an active bank account in the company’s name.
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Foreign Contractors:
To register with the NCA, foreign contractors must meet these requirements:
i) Must show evidence that they are in Kenya for a specific job.
ii) Must submit an affidavit affirming they will not take on any work beyond the approved project.
iii) Must agree to pass on technical know-how to local staff.
iv) Temporary Registration Certificate valid for a specified period.
Upon successful application, the contractor is issued with a ‘Certificate of Registration’ or simply what many people call NCA Certificate.
NCA Categories and Classes
NCA uses a classification system to group contractors by the size and type of work they are allowed to undertake. There are different categories depending on whether the work involves building, civil works, or specialised trades.
NCA Categories in Kenya (Contract Value Limits)
NCA Class | Building Contractors | Specialist Contractors | Roads & Civil Works |
---|---|---|---|
NCA 1 | Unlimited | Unlimited | Unlimited |
NCA 2 | Up to Sh 500M | Up to Sh 250M | Up to Sh 750M |
NCA 3 | Up to Sh 300M | Up to Sh 150M | Up to Sh 500M |
NCA 4 | Up to Sh 200M | Up to Sh 100M | Up to Sh 300M |
NCA 5 | Up to Sh 100M | Up to Sh 50M | Up to Sh 200M |
NCA 6 | Up to Sh 50M | Up to Sh 20M | Up to Sh 100M |
NCA 7 | Up to Sh 20M | Up to Sh 10M | Up to Sh 50M |
NCA 8 | Up to Sh 10M | Up to Sh 5M | Up to Sh 20M |
Source: NCA Kenya
NCA Registration Fees
For Local Contractors:
- Registration Fees: Between Sh5,000 and Sh100,000 depending on category.
- Annual License Renewal: Between Sh2,500 and Sh30,000.
For Foreign Contractors:
- Registration Fee: Sh250,000 (flat rate).
- Limitations: Not allowed to bid below NCA 1 level.
- Local Partnership Requirement: Must subcontract at least 30% of the project value to local contractors.
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How to Apply for NCA Registration
1. Visit the NCA website and create an account.
2. Fill in the online application form and upload:
- Business registration documents
- Technical staff credentials
- Tax compliance certificates
- Bank details
3. Pay the registration fee via mobile money or bank.
4. Await verification and issuance of your NCA Certificate.
Frequently Asked Questions
Q: What is the highest NCA category?
A: NCA 1 is the highest category, allowing contractors to undertake projects of unlimited value.
Q: Can I upgrade my NCA category?
A: Yes. You can apply for an upgrade by showing project experience and financial capacity.
Q: Where can I see a list of registered NCA contractors?
A: You can search for registered contractors on the official NCA website.
Final Thoughts
Understanding NCA categories is crucial for anyone looking to join Kenya’s construction industry. Whether you’re a local firm or an international contractor, getting registered with the NCA is the first step toward legally operating and securing construction contracts.
🔗 Need help with registration? Visit nca.go.ke to begin the process.
