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ITIN15 min read

ITIN Tips for Substack writers from Kazakhstan

Substack writers in Kazakhstan need an ITIN for U.S. tax compliance. Learn the requirements, documentation, and application process to receive your ITIN smoothly.

Reviewed by , ITIN Specialist at itin.net.

ITIN Requirements for Substack Writers in Kazakhstan

Substack writers in Kazakhstan typically encounter the need for an ITIN when their earnings from the platform reach a threshold that requires U.S. tax reporting. This often arises due to U.S. payment processors like Stripe, which are mandated by the IRS to collect taxpayer identification numbers from non-U.S. persons receiving U.S. income. Without a Social Security Number (SSN), the ITIN serves as your unique identifier for U.S. tax purposes. The primary trigger for needing an ITIN in this scenario is receiving payments sourced from the United States, which Substack payouts processed through U.S. entities generally constitute. Failure to provide a valid ITIN or SSN can lead to backup withholding at a higher rate (currently 24%) on your earnings, significantly reducing your net income. Therefore, proactively obtaining an ITIN is essential for maintaining compliance and avoiding unnecessary tax penalties. This process ensures you can continue to receive your Substack earnings without interruption and at the standard withholding rate, if any, as dictated by the U.S.-Kazakhstan tax treaty. The IRS Form W-7 is the application for this number. You will need to complete this form accurately and submit it with supporting documentation to establish your identity and foreign status. The itin.net service can assist you with this process, ensuring all requirements are met.

Eligibility and Triggers for ITIN Application

Your eligibility for an ITIN is based on your requirement to file a U.S. tax return or be subject to U.S. tax withholding, and your inability to obtain an SSN. For Substack writers in Kazakhstan, the most common trigger is the payment reporting requirement by platforms and payment processors. Stripe, for example, is required by the IRS to send Forms 1099 to U.S. persons and Forms 1042-S to non-U.S. persons who receive U.S. source income. To facilitate accurate tax reporting and avoid backup withholding, Stripe will request your taxpayer identification number. If you are not eligible for an SSN, the ITIN becomes your necessary identification. Another scenario involves potential U.S. tax obligations beyond Substack earnings, such as income from U.S. investments or business activities. The IRS Form W-7 is the specific application used to request an ITIN. It's crucial to understand that an ITIN is solely for tax reporting purposes and does not grant work authorization or eligibility for Social Security benefits in the U.S. The process is initiated by submitting the completed Form W-7 along with original or certified copies of identity documents and proof of foreign status. The typical timeline for processing is expedited when using a Certified Acceptance Agent.

Required Documentation for ITIN Application

To apply for an ITIN, you must submit IRS Form W-7 along with original or certified copies of documentation that proves your identity and foreign status. The most commonly accepted document for identity and foreign status is your valid passport. If a passport is not available, other documents may be accepted, such as a national identity card that includes your photograph, name, address, date of birth, and expiration date, or a birth certificate combined with a national identification card. However, a passport is strongly preferred by the IRS. In addition to your identity document, you will need to provide a U.S. tax return that you are filing. For Substack writers, this might be a Form 1040-NR (U.S. Nonresident Alien Income Tax Return) if you have U.S. source income that requires filing. If you are applying for an ITIN solely to meet payment processor requirements without a specific filing obligation at that moment, you may be able to use a return exception. The IRS also requires supporting documents like a visa, if applicable. All submitted documents must be originals or certified copies from the issuing agency. If you are mailing original documents, there is a risk of them being lost or delayed. Using a Certified Acceptance Agent mitigates this risk.

The ITIN Application Process: Step-by-Step

The application process for an ITIN involves several key steps. First, you must complete IRS Form W-7 accurately and thoroughly. This form collects personal information, your reason for applying for an ITIN, and details about your U.S. tax filing status. It is critical to ensure all fields are completed correctly, as errors can lead to delays or rejection. Next, gather your supporting documentation. This includes your original or certified copy of a valid passport, and any other required identification documents. You will also need the U.S. tax return you intend to file, or documentation supporting an exception to the filing requirement. Once prepared, you can submit your application package. You have two primary options for submission: mailing your application directly to the IRS or applying through a Certified Acceptance Agent (CAA). Mailing directly involves sending your original identity documents to the IRS processing center, which carries the risk of loss. The typical timeline for IRS processing when mailed directly can range from 7 to 14 weeks, though this can vary significantly based on IRS workload. Using a CAA, like itin.net, streamlines this process. The CAA will verify your original documents on your behalf, return them to you immediately, and forward your application to the IRS. This method generally results in a much faster processing time, often within 5–10 business days for the IRS to issue the ITIN after receiving the application.

Common Mistakes for Kazakhstan Substack Writers

Substack writers in Kazakhstan, like other international creators, can fall into specific application pitfalls. A frequent error is incorrect treaty claims. While Kazakhstan has a tax treaty with the U.S., claiming treaty benefits on Form W-7 requires careful attention to the specific articles and conditions applicable to your income type. Misinterpreting or incorrectly applying treaty provisions can lead to your application being rejected or your tax withholding being inaccurate. Another common issue is incomplete or inaccurate Form W-7. Missing signatures, incorrect addresses, or omitting the reason for applying for the ITIN are frequent oversights. Ensure that the name on your Form W-7 exactly matches the name on your passport or other identification documents. Mismatched names are a leading cause of ITIN application delays. Furthermore, failure to submit the correct supporting documentation is a significant problem. This includes providing photocopies instead of original or certified documents, or not including a complete U.S. tax return when required. For Substack writers, ensuring the tax return accurately reflects their platform earnings is crucial. Lastly, misunderstanding the purpose of the ITIN and its limitations, such as believing it grants work authorization, can lead to confusion and incorrect application steps.

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 are concerned about mailing original identity documents or want a more streamlined process. A CAA is an individual or entity authorized by the IRS to help taxpayers obtain ITINs. When you apply through a CAA, they authenticate your original identification documents, such as your passport, on behalf of the IRS. This means you do not have to mail your original passport or other vital documents to the IRS, significantly reducing the risk of them being lost, stolen, or damaged in transit. The CAA reviews your application and documents, ensuring they meet IRS requirements before forwarding them. This pre-screening helps catch potential errors or omissions early, increasing the likelihood of a successful and timely ITIN issuance. The typical timeline for processing when using a CAA is substantially faster than direct mailing, often resulting in an ITIN being issued within 5–10 business days after the application reaches the IRS service center. Companies like itin.net operate as CAAs, providing a secure and efficient pathway for ITIN applications. This service is especially valuable for international applicants who may face logistical challenges or security concerns with international mail. Using a CAA simplifies the entire procedure, offering peace of mind.

Next Steps After Obtaining Your ITIN

Once you receive your ITIN from the IRS, typically in the form of a CP-565 notice, your immediate tax reporting obligations are met. This number is crucial for any future U.S. tax filings and for ensuring accurate payment processing by platforms like Substack. You should keep your ITIN confirmation notice, CP-565, in a secure place. If you need to file another U.S. tax return in subsequent years, you will use this same ITIN. If you are operating as a U.S. business entity, such as a U.S. LLC, an ITIN may also be relevant for certain tax filings like Form 5472, which reports transactions between a corporation and its owner. For Substack writers who are paid via Stripe, providing your ITIN to Stripe will ensure that your payments are processed without backup withholding. If you have already experienced backup withholding due to not having an ITIN, you will typically need to file a U.S. tax return to claim a refund of those withheld amounts. Should you require assistance with forming a U.S. LLC or opening a U.S. bank account to manage your international earnings, itin.net offers services in these areas as well. Reviewing the pricing for ITIN applications or contacting itin.net for personalized guidance is a prudent next step.

Practical tips

  • Ensure the name on your Form W-7 precisely matches your passport and any other official identification documents to prevent delays.
  • If you are claiming treaty benefits, carefully review the U.S.-Kazakhstan tax treaty articles relevant to your specific income source and ensure you meet all eligibility criteria.
  • Always submit original or IRS-certified copies of your supporting documents. If mailing originals directly to the IRS, consider using a trackable and insured shipping method.
  • Keep a complete copy of your submitted ITIN application package, including Form W-7 and all supporting documents, for your records.
  • Understand that an ITIN is for tax purposes only and does not grant immigration benefits or work authorization in the United States.

Frequently asked questions

Do Substack writers in Kazakhstan need an ITIN if they only earn a small amount?

Generally, you need an ITIN if you are required to file a U.S. tax return or if a U.S. payer is required to withhold U.S. tax from your payments and they request a Taxpayer Identification Number (TIN). For Substack writers, payment processors like Stripe often require a TIN (either SSN or ITIN) to avoid backup withholding, regardless of the income amount. It's best to check with your payment processor for their specific requirements.

How long does it take to get an ITIN from Kazakhstan?

When applying through a Certified Acceptance Agent (CAA) like itin.net, the IRS typically issues an ITIN within 5–10 business days after the application is received by the IRS. If you mail your application directly to the IRS, processing times can range from 7 to 14 weeks, and can sometimes be longer depending on IRS workload.

Can I use my Kazakhstan national ID instead of my passport for ITIN application?

The IRS strongly prefers a valid U.S. passport as proof of identity and foreign status. If a passport is not available, other documents like a national identity card may be accepted, but it must include your photograph, name, address, date of birth, and expiration date. It's advisable to use your passport if possible to ensure a smoother application process.

What is the U.S.-Kazakhstan tax treaty, and how does it affect my ITIN application?

The U.S.-Kazakhstan tax treaty aims to prevent double taxation and outlines reduced withholding tax rates on certain types of income. When applying for an ITIN, you might claim treaty benefits if your Substack income qualifies under the treaty's provisions. However, correctly claiming these benefits requires understanding the specific articles and conditions, and submitting proper documentation. Incorrect claims can lead to application rejection. It is advisable to consult a tax professional for guidance on treaty benefits.

Will I have to pay U.S. taxes on my Substack earnings as a writer in Kazakhstan?

Whether you owe U.S. taxes depends on several factors, including the source of income and your total worldwide income. Substack earnings paid through U.S. platforms are generally considered U.S. source income. The U.S.-Kazakhstan tax treaty may reduce or eliminate U.S. withholding tax on this income. However, you may still be required to file a U.S. tax return to report this income. It is recommended to consult with a qualified tax advisor familiar with U.S. international tax laws and the U.S.-Kazakhstan tax treaty.

What happens if I don't provide an ITIN to Stripe?

If you do not provide a valid Taxpayer Identification Number (TIN) to Stripe, and you are a non-U.S. person receiving U.S. source income, Stripe is required by the IRS to apply backup withholding. This means a portion of your earnings will be withheld at a higher rate (currently 24%) and remitted directly to the IRS. Providing an ITIN (once obtained) ensures that payments are processed correctly and avoids this mandatory backup withholding.

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