ITIN Requirements for Substack Writers in Serbia
Substack writers based in Serbia encounter a specific tax reporting requirement due to their U.S. source income. This arises when platforms like Stripe, which process payments for U.S.-based services, require a U.S. taxpayer identification number for reporting purposes. Without a Social Security Number (SSN), the U.S. tax system mandates the use of an Individual Taxpayer Identification Number (ITIN) for these individuals. Unlike U.S. citizens or residents, you cannot obtain an SSN, making the ITIN the sole option for fulfilling these U.S. tax obligations. The IRS issues ITINs to individuals who must file U.S. tax returns but are ineligible for an SSN. For Serbian writers earning income through platforms with U.S. connections, this means an ITIN is often a necessary step to receive payments without U.S. tax withholding complications.
When You Need an ITIN as a Serbian Substack Writer
The necessity of an ITIN for Substack writers in Serbia is triggered by U.S. tax reporting obligations, primarily through payment processors. Platforms like Stripe, which facilitate payments from U.S.-based customers or advertisers, are required by the IRS to report payments made to foreign individuals. To do this accurately, they need a U.S. taxpayer identification number. If you are an independent contractor receiving payments from a U.S. entity and do not have an SSN, you will likely need to provide an ITIN. This is particularly relevant if the platform or payment processor issues you a Form 1099-NEC or similar reporting document. Failure to provide a valid U.S. taxpayer identification number can result in backup withholding of U.S. taxes at a standard rate, significantly reducing your earnings. Therefore, proactively obtaining an ITIN is essential for smooth financial operations and compliance.
Essential Documents for Your ITIN Application
To apply for an ITIN, you must submit Form W-7, Application for IRS Individual Taxpayer Identification Number, along with original or certified copies of supporting documentation. The most commonly accepted primary identification document is a valid passport. If you do not have a passport, other documents like a birth certificate or national identity card may be considered, but a passport is preferred by the IRS. You must also provide documentation verifying your foreign status and claim of tax benefits. For Substack writers in Serbia, this often includes a copy of your most recent foreign tax return filed in Serbia. The IRS requires proof of identity and foreign status to issue an ITIN. Ensure all documents are current and accurately reflect your legal name and other identifying information.
The ITIN Application Process Timeline
The process for obtaining an ITIN involves several steps, and the timeline can vary. You begin by completing Form W-7 accurately and gathering all required supporting documents. The IRS recommends applying through a Certified Acceptance Agent (CAA), such as itin.net, to avoid mailing original documents. When you apply via a CAA, they verify your identity documents and forward your application to the IRS. This method typically expedites the process, with ITINs often issued within 5–10 business days after the IRS receives the application. If you choose to mail your application directly to the IRS, the processing time can be significantly longer, potentially taking several weeks or even months, especially during peak tax seasons. The IRS will mail your ITIN directly to you once approved.
Common Mistakes for Serbian Substack Writers
Serbian Substack writers often make specific errors when applying for an ITIN. A frequent mistake is submitting incomplete Form W-7 applications, missing required fields or signature. Another common pitfall is failing to include a required U.S. tax return or failing to correctly claim any applicable tax treaty benefits. Since Serbia inherits the former Yugoslavia–U.S. tax treaty, understanding how to claim benefits under this treaty is crucial, and errors here can lead to application rejection. Mismatched names between your Form W-7, passport, and any prior IRS filings are also a major cause of delays or rejections. Ensure consistency across all documents. Lastly, attempting to use an ITIN for purposes it is not intended for, such as opening U.S. bank accounts without a valid purpose or business structure, can lead to issues.
Benefits of Using a Certified Acceptance Agent (CAA)
Applying for an ITIN through a Certified Acceptance Agent (CAA) offers distinct advantages, particularly for individuals who prefer not to mail original identification documents to the IRS. A CAA, like itin.net, is an IRS-authorized third party that can authenticate your identity documents. This means you can present your original passport or other identification to the CAA, who will then certify copies to the IRS. This verification process eliminates the risk of your original documents being lost or delayed in the mail. Furthermore, CAAs can help ensure your Form W-7 is complete and accurate before submission, potentially reducing processing times and rejections. Using a CAA streamlines the application, providing peace of mind and a more efficient path to obtaining your ITIN.
Next Steps After Receiving Your ITIN
Once you have successfully obtained your ITIN, you can provide it to your payment processors, such as Stripe, to ensure accurate tax reporting and avoid backup withholding. This allows for seamless payment reception for your Substack earnings. Your ITIN is also essential if you need to file a U.S. tax return, such as Form 1040-NR, for any U.S.-sourced income. If you are considering forming a U.S. business entity, like a U.S. LLC, an ITIN may be required as part of that process, and it can also assist with opening a U.S. bank account. For ongoing compliance or if you anticipate future U.S. tax obligations, keeping your ITIN information current with the IRS is important. If you need assistance with your ITIN application or subsequent tax filings, review our pricing or contact us directly.
Practical tips
- Use the exact same legal name on Form W-7 as it appears on your passport or other primary identification document.
- Ensure you are claiming the correct tax treaty benefits between Serbia and the U.S. if applicable; incorrect claims are a common rejection reason.
- If you have previously filed U.S. taxes, include that information and any previous ITIN or SSN on Form W-7.
- Submit Form W-7 and supporting documents through a Certified Acceptance Agent to avoid mailing original identification documents to the IRS.
- Double-check that your application is complete, including all required fields, signatures, and dates, before submission.
Frequently asked questions
Do I need an ITIN if I only write for Substack and live in Serbia?
You likely need an ITIN if your Substack earnings are processed through a U.S.-based platform like Stripe, which reports payments to the IRS. If they require a U.S. taxpayer identification number and you don't have an SSN, an ITIN is necessary to avoid backup withholding.
Can I use my Serbian national ID instead of a passport for my ITIN application?
While a passport is the preferred primary identification document for an ITIN application, other documents like a national identity card or birth certificate may be accepted if they meet IRS requirements. However, using a passport is the most straightforward approach.
How long does it take to get an ITIN as a writer in Serbia?
When applying through a Certified Acceptance Agent (CAA), the typical processing time is 5–10 business days after the IRS receives your application. Applying directly to the IRS can take significantly longer.
What is the U.S. tax treaty with Serbia?
Serbia inherits the former Yugoslavia–U.S. income tax treaty. This treaty may allow certain U.S.-sourced income, like royalties or service fees, to be taxed at a reduced rate or be exempt from U.S. tax, provided you meet the treaty's residency and beneficial ownership requirements. Proper claiming of treaty benefits on Form W-7 is essential.
Can I open a U.S. bank account with an ITIN?
An ITIN alone is generally not sufficient to open a U.S. bank account. Most U.S. banks require a U.S. address and often an SSN or an Employer Identification Number (EIN) for business accounts. You may need to form a U.S. LLC /llc and obtain an EIN first, and then explore options for a U.S. bank account /bank-account.
What happens if Stripe asks for my ITIN and I don't have one yet?
If Stripe requests your ITIN and you don't have one, they may initiate backup withholding on your payments. It's best to apply for your ITIN as soon as possible. You can often provide your ITIN once you receive it to stop future withholding.



