How to File US Taxes from Nigeria: The Complete 2025 Guide

⚠️ No US-Nigeria Tax Treaty:

Nigeria has no comprehensive income tax treaty with the United States. All US-source income is subject to standard withholding rates. An ITIN ensures your payments are processed correctly.

💵 Why Dollar Income Is Critical for Nigerians:

With the naira losing significant value, every dollar earned from US platforms matters. An ITIN unlocks full access to US payment platforms and protects your earnings.

Do Nigerians Need to File US Tax Returns?

Not every Nigerian who earns US income must file a US tax return — but many should, and some are legally required to. Here's when filing applies to Nigerian residents:

US taxes were withheld from your income — you should file to potentially recover over-withheld amounts
You have ECI over $400 — Effectively Connected Income (service income) above this threshold generally requires a return
You own a US LLC — the LLC has its own filing requirements (Form 5472/1120); you may also have personal filing obligations
You sold US real estate — FIRPTA withholding and gain must be reported
You received a 1099 or 1042-S — indicating the IRS has record of your US income

The Tax Form: Form 1040-NR

Non-US resident individuals who file US returns use Form 1040-NR (US Nonresident Alien Income Tax Return). This form:

Reports your US-source income (ECI and FDAP separately)
Claims allowable deductions against ECI
Credits taxes already withheld
Calculates your net tax owed or refund due
Requires your ITIN as the identifying number

ECI vs FDAP: The Two Categories of US Income

ECI (Effectively Connected Income) — income from performing services in the US or connected to a US trade or business. For Nigerians: freelance services for US clients, consulting fees, business profits from a US LLC. Taxed at regular graduated rates (10–37%) after deductions.

FDAP (Fixed, Determinable, Annual, Periodical) — passive income: royalties, dividends, interest, rents. Taxed at 30% gross (no deductions) since Nigeria has no tax treaty. Withholding typically occurs at source.

Step-by-Step: Filing US Taxes from Nigeria

Get ITIN — mandatory for filing Form 1040-NR. Apply via ITIN Plus, $99, 8–14 weeks. Your W-7 can be submitted with your first 1040-NR.
Gather income documents — 1099-NEC, 1099-K, 1042-S, or platform payment records.
Hire a US CPA familiar with non-resident returns — 1040-NR is complex; professional preparation is highly recommended. Cost: $300–$1,500 depending on complexity.
File by the deadline — June 15 for non-residents without US-withheld wages (April 15 with extension available to October 15).
Pay any tax owed — IRS accepts international wire transfers; IRS Direct Pay if you have a US bank account.

Nigerian Tax Obligations: Don't Forget FIRS

Filing a US return doesn't eliminate Nigerian obligations. Nigerian residents are taxed on worldwide income by the Federal Inland Revenue Service (FIRS). Your US-source income must be reported in Nigeria. Consult both a US CPA and a Nigerian tax professional for complete compliance.

ITIN — Required for US Tax Filing

$99

IRS CAA · W-7 submitted with your first 1040-NR · 8–14 weeks

Apply for ITIN

Frequently Asked Questions

Do Nigerians have to pay US taxes on freelance income?

Nigerians earning from US clients via service platforms may have US tax obligations. The rate on net service income is typically 10–37% (graduated). An ITIN and Form 1040-NR are required to properly manage this.

What is the US tax filing deadline for Nigerians?

June 15 for non-resident individuals who don't have US-source wages. Extensions to October 15 are available by filing Form 4868.

Can I deduct my business expenses on a US return as a Nigerian?

Yes, legitimate business expenses (internet, software subscriptions, equipment for service delivery) can be deducted against ECI on Form 1040-NR.

How do I pay US taxes from Nigeria?

The IRS accepts international wire transfers (instructions on irs.gov/payments) or payment by credit card through authorized payment processors. If you have a Mercury bank account, IRS Direct Pay works.

Should Nigerians hire a US CPA to file Form 1040-NR?

Strongly recommended. Form 1040-NR has significant differences from the standard 1040. A CPA specializing in non-resident returns can maximize deductions and ensure compliance. Fees: $300–1,500/year.