How to Register a Business in Nigeria in 2026: CAC, TIN and the Full Step-by-Step

You have built something that works. Customers pay you, referrals are coming in, and then a bigger door appears: a corporate client who will only pay a registered business, a grant that asks for your CAC number, a bank that will not open a company account without a certificate. The informal setup that carried you this far suddenly becomes the ceiling. Registering your business is how you break through it.

The good news is that registering a business in Nigeria in 2026 is more straightforward than the rumours suggest. The Corporate Affairs Commission runs almost everything online now, and once you know the sequence, the choices, and the mistakes to avoid, the whole thing is a project you can finish in days rather than months. This guide walks you through it end to end: choosing between a business name and a limited company, what CAC asks for, the step by step process, getting your TIN, what it costs, how long it takes, why registrations get rejected, and what to do the moment your certificate lands.

Business Name or Limited Company: Which Should You Pick?

This is the first fork in the road, and picking wrong is the most expensive mistake you can make before you even start. Under the Companies and Allied Matters Act 2020, the Corporate Affairs Commission registers several structures, but for most founders the real choice is between two.

A business name is the simplest registration: a sole proprietorship or a partnership. It is cheaper, faster, and lighter on paperwork. It suits traders, freelancers, small shops, and service providers who want to look official, open a business bank account, and print a real name on an invoice. The catch is that a business name is not a separate legal person. You and the business are the same in the eyes of the law, so its debts and liabilities are personally yours.

A limited liability company (a private company limited by shares, the Ltd you see everywhere) is a separate legal entity. It shields your personal assets behind the company, it signals permanence, and it is the structure serious clients, banks, investors, and grant bodies expect to deal with. It costs more, it asks for directors, shareholders, and a share capital, and it carries ongoing obligations like annual returns. If you are chasing corporate contracts, funding, or a brand meant to outlive you, this is usually the right home.

A simple rule: if you are testing an idea or running a small local operation, a business name gets you legal quickly and cheaply. If you are building something you want to scale, raise money for, or hand corporate invoices to, register the limited company from the start so you are not paying to convert later.

What You Need Before You Start a CAC Registration

Registrations stall when people begin without their documents ready. Gather these first and the actual filing takes an afternoon.

• Two proposed names. Have a first choice and a backup, because your preferred name may already be taken or too similar to an existing one.
• A clear description of what the business does. CAC wants the nature of your business or the objects of the company in plain, specific terms.
• A registered address. A real, verifiable address in Nigeria. A post office box will not do.
• Your identity documents. A valid government ID (NIN slip, international passport, driver's license, or voter's card) and, increasingly, the National Identification Number (NIN) for every proprietor, director, and shareholder.
• Passport photographs and a signature. A clean digital passport photo and a scanned signature for each person on the application.
• Contact details. A working phone number and email address, since CAC communicates and delivers your documents electronically.

For a limited company, add a little more: the share capital you are registering, how the shares are split between shareholders, and the details of your directors. Company registrations also require the constitution documents (the memorandum and articles of association), which the portal provides in a standard form you can adopt.

How to Register a Business With CAC in 2026, Step by Step

The entire process runs through the Corporate Affairs Commission's online portal, so you no longer need to queue at an office. Here is the sequence from start to certificate.

1. Create an account. Sign up on the official registration portal at the Corporate Affairs Commission website. Use details that match your ID, because mismatches cause queries later.
2. Reserve your name. Run a name availability search and submit your preferred name for reservation. If it is free and compliant, CAC approves it and holds it for you for a limited window. If it clashes with an existing name or a trademark, you fall back to your second choice.
3. Fill in the registration form. Enter the business or company details: the nature of business, the registered address, and the particulars of every proprietor, director, and shareholder, including NIN where required.
4. Upload your documents. Attach the IDs, passport photographs, and signatures. For a company, confirm the share capital, the shareholding split, and the constitution documents.
5. Pay the fees. Settle the CAC filing fee and the applicable stamp duty online. The portal calculates what you owe based on the structure and, for companies, the share capital.
6. Submit and track. Send the application for review. CAC either approves it or raises a query asking you to correct something. Respond to any query promptly, because the clock effectively resets each time.
7. Download your certificate. On approval, CAC issues your certificate of registration and a status report electronically. These are your official proof of registration, and you will hand them over many times, so save them safely.

If you would rather not learn the portal's quirks, an accredited agent (a lawyer, chartered secretary, or accountant registered with CAC) can file on your behalf and clear any query for you.

How to Get Your Tax Identification Number (TIN)

Your Tax Identification Number is the second half of being a legitimate business, and you cannot open a proper corporate bank account or bid for most contracts without it. The good news is that the process has been simplified.

For newly registered companies, CAC and the tax authorities are integrated, so a TIN is typically generated automatically as part of incorporation and appears alongside your registration details. You often do not have to apply separately. For a business name, you may need to register for a TIN yourself through the Federal Inland Revenue Service or the Joint Tax Board's TIN service, providing your CAC documents, ID, and business details.

Either way, verify your TIN on the official tax portals once your registration is done. Confirm the number exists, that it is linked to your business, and that the details are correct. Tax compliance is not just a legal duty; banks, corporate clients, and grant bodies all read a valid TIN as proof you are a real, accountable business rather than a here-today operation.

How Much Does It Cost and How Long Does It Take?

Two honest answers: it depends, and less than you fear. CAC fees change from time to time and vary by structure and, for companies, by share capital, so treat any figure you read online (including this one) as a guide and confirm the current fees on the CAC portal before you pay.

As a rough shape for 2026, a business name is the cheaper option, with the official CAC filing fee sitting in the low tens of thousands of naira. A private limited company costs more once you add the filing fee and stamp duty, which scales with your share capital. On top of the official CAC charges, an accredited agent or consultant adds a professional fee for handling the filing, the document preparation, and any queries. Budget for the official fee plus a service fee, and be wary of quotes that look suspiciously cheap, because they often skip the stamp duty or the professional work that prevents a rejection.

On timing, a name reservation can clear within a day or two. A clean business name registration often completes within a few working days. A limited company can take anywhere from a few days to a couple of weeks, depending on CAC's workload and whether your application draws a query. The single biggest delay is almost always a correctable error in your own submission, which is why getting it right the first time matters more than rushing it.

The Common Mistakes That Cause CAC Rejection

Most rejections and queries are self-inflicted and entirely avoidable. Watch for these.

• A name that will not fly. Names that are identical or too similar to an existing registration, that infringe a trademark, or that contain restricted words (like Federal, National, Bank, or Holdings) which need special approval. Search properly and keep a backup.
• Mismatched personal details. A name on your ID that does not match what you typed, a NIN that does not tally, or inconsistent addresses across the form. CAC checks, and mismatches trigger queries.
• Poor document uploads. Blurry IDs, the wrong file format, or a signature that does not meet the portal's requirements.
• A vague nature of business. Describing your objects too loosely, or listing activities that need a regulator's approval without flagging them.
• Choosing the wrong structure. Registering a business name when a contract or a grant specifically requires a limited company, then paying again to redo it.
• Ignoring a query. CAC often does not reject outright; it asks you to fix something. Leave the query sitting and your application stalls indefinitely.

None of these are hard to avoid. They just require attention to detail, which is exactly what tired, busy founders tend to skip.

What to Do Right After You Register

The certificate is the beginning, not the finish line. To turn registration into a working, bankable business, handle these in the first week or two.

• Open a corporate bank account. Take your CAC certificate, status report, TIN, and directors' IDs to the bank. A dedicated business account separates your business finances from your personal ones and builds the banking history lenders later want to see.
• Sort your tax registration. Confirm your TIN, and register for VAT with FIRS if your turnover requires it. Keep a simple record of income and expenses from day one.
• Get any licenses your sector needs. Food, cosmetics, and drugs need NAFDAC. Manufactured goods may need SON. Some trades need local or sector permits. Registering with CAC does not exempt you from these.
• Register with SMEDAN. The Small and Medium Enterprises Development Agency of Nigeria supports MSMEs and can connect you to programmes and support once you are formally recognised.
• Look the part. A registered business that still has no company profile, no professional email, and no clear brand leaves money on the table. A tidy company profile turns your new certificate into something you can put in front of a corporate client with confidence.

Registration makes you legal. These steps make you credible, and credibility is what wins the contracts that made you want to register in the first place. If you are still shaping the business itself, our guide on how to launch a business walks through the wider picture.

Register It Yourself or Use a Done-For-You Service?

You can absolutely register a business yourself. The CAC portal is public, the steps are the ones above, and plenty of founders file their own business name without trouble. If your case is simple, your documents are clean, and you have the time to learn the system and babysit any queries, doing it yourself saves the service fee.

Where a done-for-you service earns its keep is on the things that go wrong: a name that keeps getting rejected, a company structure with multiple shareholders and share capital to get right, a query you do not understand, or simply a schedule that has no room for a government portal. A registered agent files it correctly the first time, handles the back and forth with CAC, and hands you a clean certificate and TIN without the guesswork.

This is exactly what Northern Star's done-for-you Business Setup service is built for. We handle the name reservation, the CAC filing, the documents, and the TIN end to end, so you get a properly registered business without touching the paperwork. If you would rather build while we handle the bureaucracy, tell us what you need and we will take it from there.

The Bottom Line: Get It Right the First Time

Registering a business in Nigeria in 2026 comes down to a few clear decisions made in the right order: pick the structure that fits where you are going, gather your documents before you start, file cleanly through the CAC portal, secure your TIN, and then move quickly on the bank account, licenses, and profile that turn a certificate into a credible business. Do it carefully once and you never have to think about it again.

The founders who struggle are rarely the ones with a bad business. They are the ones who guessed at the structure, rushed the paperwork, and paid twice to fix it. Whether you file it yourself with this guide or hand it to us, get it right the first time. Your registered business is the foundation every contract, loan, and grant will stand on, so it is worth building straight.