To apply for an ITIN from Nigeria, you file IRS Form W-7 with a certified copy of your passport, verified online by a Certifying Acceptance Agent, or certified by the Nigeria Immigration Service or a US consulate, usually attached to a US tax return or a qualifying exception. You do not need to travel to the United States, and you do not need a US visa. Here is the part most guides skip: Nigeria has no income tax treaty with the United States, so an ITIN does a very different job for a Nigerian than it does for someone in a treaty country. It will not lower your 30% US withholding. Nothing the ITIN does can. Its real value is filing, compliance, and identity, and that distinction decides whether you even need one yet.
- Nigeria has no US income tax treaty, so a W-8BEN cannot cut the flat 30% US withholding on dividends and royalties, and forming a US LLC does not change that either (IRS treaties A to Z).
- An ITIN is a filing and compliance key for Nigerians, not a rate-reducer. Its real jobs are Form 5472 and 1040-NR filing, reclaiming over-withheld tax, FIRPTA on US property, and banking or brokerage onboarding.
- The IRS does not accept a Nigerian notarized or lawyer-certified passport copy. Only the Niger
More Nigerians earn and invest in dollars every year. Some run US LLCs to access Stripe and Mercury. Others sell on Amazon, Etsy, and Kindle, freelance on Upwork and Fiverr through Payoneer, or buy US stocks through Bamboo, Risevest, and Trove. A smaller group owns US property or files with a US-person spouse. Sooner or later most of them hit the same wall: a US payer or the IRS wants a US taxpayer number, and they are not eligible for a Social Security Number. The answer is an ITIN, the Individual Taxpayer Identification Number the IRS issues to people with a US tax reason who cannot get an SSN.
This guide covers exactly how to get one from Nigeria in 2026: what the missing tax treaty actually means for your money, who really needs an ITIN, the documents, the passport problem specific to Nigerian applicants, the step-by-step process, processing time, and the fastest route that keeps your passport in your hands.
Nigeria Has No US Tax Treaty. Here's What That Actually Means.#
There is no income tax treaty between Nigeria and the United States. In fact, the US has income tax treaties with only four African countries: Egypt, Morocco, South Africa, and Tunisia (IRS treaties A to Z). Nigeria is not on that list, and that single fact reshapes the whole ITIN conversation for a Nigerian.
Start with what a treaty does. When a US payer sends dividends or royalties to a nonresident, the default statutory withholding is a flat 30% (IRS, Taxation of Nonresident Aliens). A tax treaty can lower that rate. The form you would use to claim a lower rate is the W-8BEN, which asks you to name your country and the treaty article you qualify under. A Nigerian filling out a W-8BEN has no treaty article to claim. So the 30% stands (IRS, withholding on US-source income paid to nonresident aliens).
This is the trap to avoid: an ITIN does not lower that 30%. Neither does a US LLC. Neither does an EIN. Only a treaty can reduce the rate, and Nigeria has none. Anyone who tells you an ITIN will cut your platform or dividend withholding is wrong, and that mistake can cost you real money if you plan around it. The table below shows the difference between Nigeria and a treaty neighbour, South Africa, with the ITIN's honest role spelled out.
Nigeria holds no income tax treaty with the United States, one of only a handful of large economies outside the four African treaty partners (Egypt, Morocco, South Africa, Tunisia). For a Nigerian, an ITIN is a filing and identity key, not a rate-reducer. Only a treaty lowers the 30% statutory withholding, and Nigeria has none (IRS treaties A to Z).
One more precision point, because it trips people up. There is a portfolio-interest exemption that can zero out US withholding on certain qualifying interest. It applies to interest, not dividends. Your US dividends still face the 30% rate. Do not confuse the two.
So Why Does a Nigerian Need an ITIN at All?#
If the ITIN cannot lower your withholding, it is fair to ask what it is good for. Quite a lot, actually, but for reasons that have nothing to do with treaty rates. For a Nigerian, the ITIN earns its keep in four concrete situations, and most applicants fit at least one.
US LLC and Form 5472 compliance#
This is the biggest driver for Nigerian founders. A foreign-owned single-member US LLC is treated as a disregarded entity that must file a pro forma Form 1120 with a Form 5472 attached every year, reporting transactions with its foreign owner. The penalty for failing to file Form 5472 starts at $25,000, and it climbs after IRS notice (IRS, Form 5472 instructions). You file the 5472 on the company's EIN, but the moment a personal filing enters the picture, you usually need an ITIN. An ITIN also smooths onboarding and ongoing compliance with Stripe, Mercury, and PayPal. Learn the sequence in our guides to starting a US LLC and whether you can get an EIN without an LLC.
Filing Form 1040-NR to reclaim over-withheld tax#
When a US platform or broker over-withholds, the way you get money back is to file a US return, not to wave a treaty you do not have. Filing a Form 1040-NR requires a US taxpayer number, and for a Nigerian that means an ITIN. Be precise about what a return recovers: it refunds money only where tax was over-withheld against your actual liability, for example income that is effectively connected to a US trade or business (where deductions apply), or a platform that withheld more than the rules required. Correctly withheld 30% FDAP, such as dividends with no treaty, is the final tax, and filing will not refund it. See our overview of tax returns for non-resident aliens.
FIRPTA on US real estate#
Sell a US real property interest as a foreign person and the buyer generally withholds 15% of the gross sale price under FIRPTA (IRS, FIRPTA withholding). That 15% is a deposit against your actual tax, which is often far less. To file the return, reconcile the withholding, and claim back the difference, you need an ITIN. If you are buying with financing, our note on a mortgage loan with an ITIN is a useful companion.
Banking, brokerage, and family filings#
An ITIN opens doors beyond filing. Many US banks and fintechs accept it in place of an SSN, which matters if you want to open a US bank account as a non-resident or invest in US stocks through a US broker. Spouses and dependents of US taxpayers also need ITINs to be claimed on a return. Not sure the number is even the right tool? Start with what an ITIN actually is.
Do You Actually Need One Yet?#
The honest part most services skip: you may not need an ITIN yet, and applying before you have a reason just gets you rejected. The IRS does not issue ITINs "just in case." It issues them when a tax reason exists.
Take the most common Nigerian case, a single-member US LLC. Your annual Form 5472 obligation is filed on the company's EIN, not on a personal ITIN, so the entity stays compliant without you holding one. The trigger for needing your own ITIN comes later: a personal US filing, a refund claim, a FIRPTA sale, a dependent or spouse on a return, or a payer that demands a taxpayer number from you personally. Match your application to a real trigger. If none of them apply to you today, it is usually fine to wait, and our explainer on why ITIN applications get rejected shows how often "no valid reason" is the cause.
Who in Nigeria Applies for an ITIN#
The pressure behind all of this is the naira. The currency fell from roughly ₦460 to the dollar in mid-2023 to about ₦1,480 at the close of 2024, a depreciation of about 129% in that year alone (Chatham House, March 2025). When your home currency loses that much value, earning and holding dollars stops being optional. Diaspora remittances tell the same story: they reached $20.93 billion in 2024, a five-year high, with the United States the world's largest remittance-sending country (CBN via Nairametrics; World Bank). That dollar gravity is why these five groups apply.
US LLC founders. This is the largest group. Stripe does not let a Nigerian-registered business onboard directly, which is the single biggest reason Nigerian founders incorporate a US LLC to reach Stripe, Mercury, and PayPal (Stripe Atlas 2025 review, which served founders from 169 countries). Once you own a US entity, Form 5472 and eventually a personal filing follow.
Amazon, Etsy, KDP, and Payoneer sellers. Hundreds of thousands of Nigerian freelancers and sellers earn through US marketplaces and route payouts through Payoneer. The platforms ask for a W-8BEN, and over-withholding is common, which is exactly the case a 1040-NR with an ITIN is built to fix.
US-stock investors. Apps like Bamboo, Risevest, and Trove have put US equities within reach of ordinary Nigerian investors (TechCabal, July 2025). Dividends get hit with the 30% withholding, and an ITIN is what lets a serious investor file to reconcile, even though it cannot lower the rate itself.
US real estate owners. A smaller but growing group buys US property, often in Texas or Georgia metros. FIRPTA's 15% sale withholding makes an ITIN essential at exit.
Students, spouses, and dependents. Family members of US filers, and the roughly 476,000 Nigerian-born residents of the US clustered in Houston, New York, the Washington and Maryland corridor, Atlanta, Dallas, and Chicago, often need ITINs for dependents and spouse filings.
Documents Needed for Your ITIN Application#
Three things go into a complete ITIN package, and the order of importance is not what most people assume. Your passport is the single most important document, the W-7 is the form, and the attached reason is what makes the application valid. Miss any one and it bounces.
- A certified copy of your Nigerian passport, or the original. This is the one document that can stand alone for identity and foreign status, which is why it is the heart of the package. A plain photocopy is rejected. A notarized photocopy is also rejected (more on that next).
- Form W-7, the ITIN application itself, current revision December 2024, signed and dated with the correct reason code.
- A reason the IRS recognizes, normally a US federal tax return attached to the W-7, or proof that you meet a withholding exception (for example, a US LLC, partnership, or platform-withholding situation). Without a valid reason, even a perfect passport copy will not get you an ITIN.
If you have US income but no return to attach yet, read our note on getting an ITIN without a tax return to see whether an exception fits your case.
The Passport Problem: 3 Ways to Certify It#
This is where most Nigerian applications stall. The IRS accepts a certified copy of your passport from exactly three sources, and a Nigerian notary or lawyer is not one of them. A notarized photocopy made at a Nigerian law office is not accepted by the IRS, no matter how official the stamp looks (IRS, obtaining an ITIN from abroad). Here are the three routes that do work.
Option A: The Nigeria Immigration Service. As the agency that issues your passport, the Nigeria Immigration Service can provide a certified copy. This route works in principle, but it means a trip to a passport office and dealing with processing times, and not every office handles certified-copy requests smoothly.
Option B: A US consulate or embassy. The US Consulate General in Lagos and the US Embassy in Abuja offer limited notarial services by appointment. Slots are scarce, services lean toward US citizens, and consular staff will not always certify a foreign national's passport copy for ITIN purposes. Still, for some applicants it is a viable path. The two offices are below.
Source: ng.usembassy.gov
Option C: An IRS Certifying Acceptance Agent. A CAA is authorized by the IRS to verify your identity and passport directly, then submit your W-7 with a Certificate of Accuracy. With an online CAA, this happens over a video call, so your passport never leaves Nigeria and you never mail the original to the United States. For most Nigerian applicants this is the cleanest route. Read more about what a Certifying Acceptance Agent is.
A word on the mail-in alternative. If you skip certification and send your original passport to the IRS in Austin, Texas, you are putting your single most valuable travel document into international post for weeks. People lose passports this way. The risk is real, and it is avoidable.
How to Apply for an ITIN from Nigeria, Step by Step#
The process is the same whether you are in Lagos, Abuja, or Port Harcourt. What changes is the certification route you pick in step three. Here is the full sequence.
- Confirm your tax reason and gather documents. Identify your trigger (US LLC and 5472, a 1040-NR refund, FIRPTA, or a family filing) so you attach the right supporting proof. Pull your valid passport.
- Complete Form W-7. On the official IRS form, choose the correct reason code, enter your name exactly as it appears in your passport, and use your Nigerian address.
- Certify your passport via one of the three routes. Nigeria Immigration Service, a US consulate, or an IRS CAA. Most applicants choose a CAA to keep the passport and skip the mail.
- Attach your reason. A US federal return for most filers, or exception proof for those who qualify (a US LLC or partnership package, for instance).
- Submit the package. A CAA submits it for you electronically with the certification attached. If you go the DIY route, you mail it to the IRS ITIN operation in Austin, Texas, ideally by tracked courier.
- Wait 7 to 11 weeks. The IRS quotes about 7 weeks standard, and 9 to 11 weeks when filed from abroad or during the January 15 to April 30 peak (IRS, obtaining an ITIN from abroad). It mails a CP565 notice with your number once approved. You can later check your ITIN status online.
IRS-listed Acceptance Agents in Nigeria#
The IRS Acceptance Agent directory lists very few agents inside Nigeria, which is why so many applicants look abroad. As of the directory reviewed in February 2026, the listing shows a single agent, in Lagos.
Source: IRS Acceptance Agents, Nigeria (last reviewed 18 Feb 2026).
One listed agent for a country of more than 200 million people leaves an obvious gap, and it is the reason most Nigerian applicants finish online instead. Taxsym operates a network of IRS-authorized Certifying Acceptance Agents who verify your documents over video and submit your W-7 for you, so your passport stays in Nigeria and you deal with one team rather than the IRS mailroom.
Apply With Taxsym vs Doing It Yourself#
Both routes reach the same ITIN. The difference is risk, speed, and what happens to your passport. In the applications we see from Nigeria, the certification step is where most do-it-yourself filers stall, because the Immigration Service route is slow, consulate slots are scarce, and a notarized copy is rejected outright.
Taxsym works with IRS-authorized Certifying Acceptance Agents who handle the W-7, verify your documents remotely, and file everything for you. The named agent on this guide, Ömer Y., holds the CAA credential. You stay in Nigeria, keep your passport, and once your ITIN arrives you can put it to work, whether that is filing a 1040-NR, keeping a US LLC compliant, or opening US banking and brokerage accounts.
Common Mistakes Nigerian Applicants Make#
- Mailing the original passport by regular post. People lose passports in international mail. If you must send originals, use a tracked courier. Better, use a CAA and never let the passport leave Nigeria.
- Using a notarized copy. A Nigerian notary or lawyer cannot certify your passport for the IRS. Only the Nigeria Immigration Service, a US consulate, or an IRS CAA can. Do not pay for a notarized copy expecting it to work.
- Applying with no valid reason or return. A perfect passport copy with no tax reason attached gets rejected. Confirm your trigger first.
- Expecting the ITIN to cut your withholding. It will not. Only a treaty does, and Nigeria has none. Plan to reclaim over-withholding by filing, not by holding an ITIN.
- Ignoring Form 5472. If you own a US LLC, the annual pro forma 1120 and Form 5472 carry a $25,000 penalty for failure to file. Do not skip them while you focus on the ITIN.
- Letting the ITIN go dormant. An ITIN not used on a US return for three consecutive years expires. Check whether you need to renew it before you file.
FAQ: ITIN From Nigeria#
Is there an IRS Acceptance Agent in Lagos or Abuja?#
The IRS directory lists a single agent in Nigeria, in Lagos, as of the listing reviewed in February 2026. That is thin coverage for a country of more than 200 million, and a basic Acceptance Agent may not be able to certify your passport remotely. Most Nigerian applicants use an online Certifying Acceptance Agent instead.
Can a Nigerian notary or lawyer certify my passport for the IRS?#
No. The IRS does not accept a notarized or lawyer-certified passport copy. It accepts certification only from the passport-issuing agency (the Nigeria Immigration Service), a US embassy or consulate, or an IRS Certifying Acceptance Agent. A notarized copy will get your application rejected, so do not pay for one.
Do I need to mail my passport to the United States?#
No, and you should avoid it. Mailing your original passport to Austin, Texas puts it in international post for weeks, and passports do get lost this way. An online Certifying Acceptance Agent verifies your passport over a video call, so it never leaves Nigeria and you keep it the entire time.
Can I get an ITIN without a US tax treaty?#
Yes. The treaty question and the ITIN question are separate. Nigeria has no US tax treaty, but you can still get an ITIN, because the number is a filing and identity tool, not a treaty benefit. Just remember the ITIN will not lower your 30% withholding, since only a treaty can, and Nigeria has none.
Does my US LLC's EIN mean I don't need an ITIN?#
Not necessarily, but maybe not yet. Your foreign-owned single-member LLC files its annual Form 5472 on the company's EIN, so the entity stays compliant without your personal ITIN. You need your own ITIN when a personal trigger appears: a 1040-NR refund, a FIRPTA sale, a dependent or spouse on a return, or a payer asking for your personal taxpayer number.
How long does it take from Nigeria?#
Plan for about 7 to 11 weeks of IRS processing, on the longer end when you file from abroad or during the January 15 to April 30 peak. Add international mail time if you submit by post. An online CAA removes the slowest, riskiest leg, mailing your passport overseas, so the timeline is more predictable.
How much does it cost, and what is the IRS fee?#
The IRS charges no fee for Form W-7 itself. Your costs come from how you certify your passport and whether you use a professional to prepare and file the package. A CAA charges a service fee for verifying your documents and submitting the application, which buys you a checked package, a kept passport, and a lower rejection rate.
The Bottom Line for Nigerian Applicants#
For a Nigerian, the ITIN is not a magic key to lower US taxes. It cannot be, because there is no US-Nigeria tax treaty to unlock a reduced rate, and no ITIN, EIN, or US LLC changes that. What the ITIN does do is essential in its own right: it lets you keep a US LLC compliant, file a 1040-NR to reclaim over-withheld dollars, handle FIRPTA when you sell US property, and onboard with US banks and brokers. Match the application to a real trigger, certify your passport through one of the three valid routes, and never mail your original abroad. Whether you compare yourself to a treaty country like South Africa, or to other non-treaty hubs like the United Arab Emirates and the Philippines, the Nigerian path is its own. Get the facts right and the application is straightforward.