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ITIN12 min read

ITIN Tips for Substack writers from Nigeria

Substack writers in Nigeria need an ITIN for U.S. tax reporting, especially with platforms like Stripe. Learn the process, required documents, and common pitfalls.

Reviewed by , ITIN Specialist at itin.net.

Nigerian Substack Writers Face Unique ITIN Hurdles

Substack writers in Nigeria encounter specific challenges when applying for an Individual Taxpayer Identification Number (ITIN). Unlike U.S. residents, you are dealing with international tax compliance, payment processor requirements, and the absence of a U.S. tax treaty. Platforms like Stripe, which facilitate payments to creators globally, often require an ITIN or an Employer Identification Number (EIN) for proper U.S. tax reporting purposes, such as issuing Form 1099-NEC or Form 1042-S. Failure to provide this can lead to backup withholding on your earnings. This situation is distinct from a U.S. resident needing an ITIN for filing their own U.S. tax return. The primary friction point for Nigerian Substack writers is fulfilling the tax documentation requirements imposed by U.S. payment processors to avoid withholding taxes on their creative income.

When You Need an ITIN as a Nigerian Substack Writer

You are generally required to obtain an ITIN if you are a non-resident alien earning income sourced from the United States, and you do not have and cannot obtain a Social Security Number (SSN). For Substack writers in Nigeria, this most commonly arises when your earnings are processed through a U.S.-based platform or payment service. Stripe, for instance, is a U.S. payment processor that requires tax identification numbers from its users, including those outside the U.S., to comply with IRS regulations. If Substack routes your payments through a U.S. entity or if Stripe's reporting requirements necessitate it, you will need an ITIN to report your U.S.-sourced income accurately and avoid backup withholding. Even if Substack itself is not a U.S. entity, the payment processors they use often are. Confirming the tax reporting requirements of your specific payout method is key. Without an ITIN, Stripe may withhold a portion of your earnings at the highest rate.

Essential Documents for Your ITIN Application

To apply for an ITIN using IRS Form W-7, you will need to provide original or certified copies of specific identification documents. The most commonly accepted primary identification document is a valid passport. If you do not have a passport, other identity documents may be accepted, but a passport is strongly preferred by the IRS. In addition to your proof of identity, you must submit a U.S. federal income tax return with your Form W-7 application, unless you qualify for a specific exception. For most Substack writers, this tax return will be a Form 1040-NR (U.S. Nonresident Alien Income Tax Return), reporting your Substack earnings. Ensure all names on your application and supporting documents match exactly. Missing or mismatched documentation is a leading cause of application delays or rejections.

Step-by-Step ITIN Application Process

The ITIN application process involves several key steps. First, you must complete IRS Form W-7, Application for IRS Individual Taxpayer Identification Number. This form collects personal information, your reason for applying, and details about your U.S. tax filing obligation. Concurrently, you must prepare your U.S. federal income tax return (e.g., Form 1040-NR) for the tax year you are claiming the ITIN for. Once both are ready, you can submit them to the IRS. You have three main options for submission: mail your original documents directly to the IRS, visit an IRS Taxpayer Assistance Center (TAC) (availability may be limited and requires an appointment), or use a Certified Acceptance Agent (CAA). The CAA route, offered by services like itin.net, authenticates your original documents and forwards your application to the IRS on your behalf. This process typically takes 5–10 business days when filed through a CAA, significantly faster than mailing originals, which can take several months.

Common Mistakes for Nigerian Substack Writers

Nigerian Substack writers often make specific errors when applying for an ITIN. A frequent mistake is failing to file a U.S. tax return alongside the Form W-7, which is a requirement for most applicants. Another common pitfall is submitting incomplete or inaccurate personal information on the Form W-7, especially name discrepancies between your application, passport, and any prior IRS correspondence. Since Nigeria does not have a U.S. tax treaty, attempting to claim treaty benefits incorrectly on your tax return is also a potential error, though less likely for typical Substack income. Ensure you are correctly identifying your income source and filing status. For example, income from Substack is generally considered U.S.-sourced royalty or service income, which requires specific reporting on Form 1040-NR.

Benefits of Using a Certified Acceptance Agent (CAA)

Using a Certified Acceptance Agent (CAA) streamlines the ITIN application process, especially for international applicants like yourself. As a CAA, itin.net can verify your original identification documents, such as your passport, meaning you do not have to mail them to the IRS. This significantly reduces the risk of losing these crucial documents. The CAA also reviews your Form W-7 and accompanying tax return for completeness and accuracy before forwarding them to the IRS. This pre-screening helps prevent common errors that lead to application delays or rejections. The typical processing time through a CAA is 5–10 business days, compared to potentially several months if you mail your application directly to the IRS. This faster turnaround is invaluable for creators who need their ITIN to comply with payment processor requirements promptly.

Next Steps After ITIN Application

Once your ITIN application is approved, the IRS will issue you an ITIN, typically via mail. You will receive a notification letter from the IRS, often a CP-565, confirming your ITIN. With your ITIN in hand, you can then provide it to your payment processors, such as Stripe, to update your tax information. This will stop any backup withholding and ensure accurate tax reporting for your Substack earnings. If you are also looking to establish a U.S. business presence, you might consider forming a U.S. LLC, which often requires an EIN and can help with opening a U.S. bank account. For those needing ITIN services, itin.net offers a Standard Package for $497. Renewals are available for $397. You can review our pricing and services or contact us for personalized assistance.

Practical tips

  • Use your full legal name exactly as it appears on your passport for both your Form W-7 and your U.S. tax return.
  • Ensure your passport is valid and has not expired; expired passports are not accepted as proof of identity.
  • If you are applying for an ITIN for yourself and your spouse or dependents, you must submit a separate Form W-7 for each individual.
  • Keep copies of all submitted documents, including your Form W-7 and U.S. tax return, for your records.
  • If you need to open a U.S. bank account for your freelance income, an ITIN can sometimes be used, but an EIN is often preferred for business accounts.

Frequently asked questions

Do I need an ITIN if my Substack earnings are low?

Even if your earnings are low, U.S. payment processors like Stripe may still require an ITIN or EIN for tax reporting purposes. Failure to provide one can result in backup withholding. It's best to check the specific requirements of your payout platform.

Can I use my Nigerian driver's license as identification for an ITIN?

The IRS strongly prefers a valid passport as proof of identity for ITIN applications. While other documents might be accepted in rare cases, a passport is the most reliable option. If you do not have a passport, confirm with a Certified Acceptance Agent what alternative documents might be permissible.

How long does it take to get an ITIN after applying from Nigeria?

When applying through a Certified Acceptance Agent like itin.net, the process typically takes 5–10 business days. Mailing your application directly to the IRS can take significantly longer, potentially several months.

What is the difference between an ITIN and an EIN for a Nigerian Substack writer?

An ITIN is for individuals who need to file U.S. taxes but cannot get an SSN. An EIN is for businesses. While you need an ITIN for personal tax reporting or if a platform requires it for your individual income, you might need an EIN if you set up a U.S. business entity, like a U.S. LLC, to receive payments.

Do I need to file a U.S. tax return every year once I have an ITIN?

You generally need to file a U.S. tax return for any year in which you have U.S.-sourced income and are required to do so, or if you are claiming a refund or specific tax benefits. Having an ITIN doesn't automatically obligate you to file every year if you don't meet the filing thresholds, but it's essential for reporting income that triggers a filing requirement.

Can itin.net help me with opening a U.S. bank account after I get my ITIN?

While itin.net primarily focuses on ITIN and EIN applications, having an ITIN or EIN is often a prerequisite for opening a U.S. bank account. We can guide you on the requirements and connect you with resources that help facilitate this process.

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