What Is an ITIN?
An Individual Taxpayer Identification Number (ITIN) is a tax identification number issued by the U.S. Internal Revenue Service (IRS). It is designed for individuals who have a U.S. tax obligation but are not eligible for a Social Security Number — primarily non-U.S. residents and foreign nationals.
If you earn income from U.S. sources, use U.S. payment platforms, or own a U.S. business entity, an ITIN is the identification number that makes compliant tax reporting possible.
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1. Filing U.S. Taxes on U.S.-Source Income
Any non-U.S. resident who earns income from U.S. sources is generally required to file a U.S. tax return — and that requires an ITIN.
Common situations include:
- Investment income: U.S. stock trading, ETFs, dividends
- Real estate income: Selling or renting U.S. property
- Platform income: Revenue from Amazon, Shopify, TikTok, Upwork, Fiverr, or independent websites
Without an ITIN, the IRS typically applies a flat 30% withholding tax on U.S.-source income. With an ITIN, income is taxed at the actual applicable rate — and overpaid taxes can be refunded.
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2. Required by Stripe, PayPal, and Other U.S. Payment Processors
U.S. payment platforms are legally required to collect tax identification information from account holders and report it to the IRS. For non-U.S. residents, the ITIN is the compliant tax ID accepted by:
- Stripe
- PayPal
- Shopify Payments
- Amazon, Etsy, and other marketplace payment systems
Without an ITIN, you may face incomplete account verification, payment holds, or account restrictions on these platforms.
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3. U.S. Banking and Credit Card Applications
An ITIN can be used in place of a Social Security Number for certain U.S. financial products:
- U.S. bank accounts: Some banks accept an ITIN for tax compliance purposes when opening accounts
- U.S. credit cards: Certain issuers — including Capital One — accept ITINs for remote applications
Approval depends on the institution's individual policies, but having an ITIN is a prerequisite for accessing the U.S. financial system as a non-resident.
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4. Single-Member LLC Tax Filing
Non-U.S. residents who own a single-member LLC must report business income on a personal tax return. In this structure, the LLC is treated as a disregarded entity, meaning:
- Business and personal income are filed together
- A personal ITIN is required to file the return
- Without one, compliant filing is not possible
This is one of the primary reasons cross-border e-commerce sellers, freelancers, and independent consultants apply for an ITIN.
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5. ITIN Processing Time and Application Process
Realistic Processing Timeline
ITIN processing time is set entirely by the IRS. Recent factors — including IRS staffing reductions and a 43-day government shutdown — have extended timelines considerably:
- Period: Before IRS staffing reductions · Estimated Processing Time: ~24 days
- Period: After workforce reductions · Estimated Processing Time: ~60 days
- Period: Current (post-shutdown) · Estimated Processing Time: ~78 days
The IRS confirmation letter is sent to the U.S. address on the application. We use a domestic U.S. receiving address, which means delivery is faster and more reliable than international mail.
How the Application Works
Step 1 — You provide your documents
Most applicants only need:
- A clear, IRS-compliant passport scan
- A complete residential address
Step 2 — We prepare the IRS paperwork
We complete Form W-7 and all supporting certification documents. You do not need to handle tax forms yourself.
Step 3 — We mail to the IRS
Your application is mailed to the IRS ITIN Processing Center. Mailing takes 3–5 business days. You receive an international tracking number so the shipment is fully traceable.
Step 4 — You receive your ITIN confirmation
Once the IRS issues your ITIN and the confirmation letter arrives at our U.S. address (~87 days from submission), we scan and send you the official notice immediately. No waiting for international postal delivery.
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Summary
An ITIN is the tax ID that enables non-U.S. residents to file U.S. taxes, use payment platforms like Stripe and PayPal, access U.S. banking, and operate an LLC compliantly. Current IRS processing time is approximately 78 days. The application itself only requires a passport copy and a home address.
Ready to apply? Start your ITIN application here.