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U.S. LLC application reference for Substack writers based in Poland
LLC15 min read

A U.S. LLC Guide for Substack writers from Poland

Polish Substack writers can leverage a U.S. LLC for their business. Learn the requirements, process, and common pitfalls of forming an LLC from Poland.

Reviewed by , ITIN Specialist at itin.net.

Why Polish Substack Writers Need a U.S. LLC

Substack writers based in Poland face a unique intersection of international business and U.S. tax compliance. When your Substack earnings reach a certain threshold, or if you plan to scale beyond content creation into broader U.S. business activities, you may encounter requirements for a U.S. business entity. Unlike U.S. residents, Polish citizens typically cannot operate a U.S. business solely under their personal name and Polish tax ID for U.S. tax purposes. This is where a U.S. LLC becomes a strategic tool. It provides a distinct legal and financial identity within the United States, simplifying tax reporting and offering liability protection. For Polish writers, this means establishing a formal U.S. business structure that aligns with U.S. financial platforms like Stripe, which often require an Employer Identification Number (EIN) tied to a U.S. entity for payouts. This structure helps avoid issues with international money transfers and ensures compliance with U.S. reporting obligations, such as Form 5472 for foreign-owned U.S. entities. The primary friction point for Polish Substack writers is the need to interface with U.S. financial and tax systems, which are designed around U.S. business structures. A U.S. LLC bridges this gap, offering a familiar framework for U.S. entities while being accessible to non-residents.

When a U.S. LLC Becomes Necessary or Beneficial

For Substack writers in Poland, a U.S. LLC is generally triggered by the operational and financial requirements of the Substack platform and its payment processors, primarily Stripe. Substack and Stripe require a U.S. taxpayer identification number for payouts, which for a business entity, is an EIN (Employer Identification Number). While a Polish individual can theoretically receive payments via personal channels, operating a business and receiving consistent income from a U.S. platform like Substack often necessitates a formal U.S. business presence for tax compliance and operational ease. If your Substack earnings are substantial, or if you plan to engage in related U.S. business activities (e.g., offering premium services, selling merchandise tied to your newsletter), establishing a U.S. LLC is highly advisable. It provides a clear separation between your personal finances in Poland and your U.S.-based business income. Furthermore, U.S. tax regulations, particularly regarding foreign-owned U.S. entities, often require specific filings like Form 5472 when a U.S. business is owned by a non-resident. Operating without this structure can lead to compliance issues and potential penalties. The U.S. LLC offers pass-through taxation, meaning the business itself doesn't pay corporate income tax; profits and losses are passed through to the owner. This avoids double taxation common in other corporate structures, making it an efficient choice for solo entrepreneurs.

Essential Documents for U.S. LLC Formation

Forming a U.S. LLC requires specific documentation to be filed with the state of formation and subsequently for tax identification. The foundational document is the Articles of Organization, filed with the chosen state's Secretary of State office. This document officially creates the LLC. While not filed with the state, an Operating Agreement is a critical internal document. It outlines the ownership structure, operating procedures, and member responsibilities of the LLC. For non-resident founders, this document is essential for defining the business's internal governance. To operate the LLC and receive payments, you will need an Employer Identification Number (EIN), obtained by filing Form SS-4 with the IRS. The IRS issues a CP-575 notice as confirmation of your EIN. Since you are a non-resident of the U.S., you will also need to provide a copy of your passport or other government-issued identification when applying for an ITIN if required for certain tax filings, or when using services that require identification verification. For U.S. LLC formation, the primary personal document needed is a copy of your passport. The IRS also requires a U.S. business address, which can be a virtual mailbox service, and a registered agent in the state of formation. The registered agent's role is to receive official mail and legal notices on behalf of the LLC.

The U.S. LLC Formation and EIN Process

The process of forming a U.S. LLC for a Polish writer involves several distinct steps, typically completed within 5–10 business days for formation, with expedited options often available. First, you select a U.S. state for formation. Delaware, Nevada, and Wyoming are popular choices for non-residents due to their business-friendly laws, though the best state depends on your specific needs and any potential nexus requirements. Next, you file the Articles of Organization with the chosen state's business registry. Following state approval, the LLC is officially formed. The subsequent critical step is obtaining an EIN from the U.S. Internal Revenue Service (IRS). This is done by submitting Form SS-4. As a non-resident without a U.S. Social Security Number, you cannot apply online and must typically use fax or mail, or apply through an authorized third party. The EIN application process can take several weeks if applying directly by mail or fax. Once the EIN is secured, you will need to establish a U.S. business bank account, which is often a prerequisite for receiving Stripe payouts. Opening a U.S. bank account as a non-resident can be challenging without a U.S. physical presence, but many services cater to this need. The final step involves ensuring compliance with U.S. tax reporting, such as filing Form 5472 annually if you are the sole member of a U.S. LLC owned by a foreign person.

Common Pitfalls for Polish Substack Writers

Polish Substack writers forming a U.S. LLC can encounter specific challenges beyond general business setup errors. One common pitfall is failing to understand state-specific requirements. For instance, forming an LLC in a state where you have no physical presence or business activity is generally fine, but be aware of states like California that impose significant franchise taxes regardless of income. Another frequent mistake is neglecting the Operating Agreement. This internal document is crucial for defining ownership and operational details, and its absence can lead to disputes or compliance issues later. For Substack writers, a critical error is missing the U.S. tax filing obligations. Foreign-owned U.S. entities must file Form 5472 with the IRS annually to report transactions between the owner and the LLC. Failure to file this form carries substantial penalties, often $25,000 or more. Also, be mindful of the Beneficial Ownership Information (BOI) report, required by the Corporate Transparency Act, which must be filed with the Financial Crimes Enforcement Network (FinCEN) within 90 days of formation for entities created in 2024. This report identifies the individuals who ultimately own or control the company. Ensure all names and addresses used in formation documents match your passport and any other official records to avoid rejection.

The Certified Acceptance Agent (CAA) Advantage

Engaging a Certified Acceptance Agent, or CAA, like itin.net, can significantly streamline the ITIN application process for non-residents. A CAA is authorized by the IRS to assist taxpayers in obtaining an ITIN. They can authenticate original identification documents or certified copies from the issuing agency, meaning you do not have to mail your original passport to the IRS. Instead, the CAA reviews your original documents and forwards certified copies along with your ITIN application (Form W-7) to the IRS. This offers a much faster and more secure route compared to mailing sensitive documents directly. For Polish Substack writers who may need an ITIN for various U.S. tax purposes, such as filing a U.S. tax return or claiming tax treaty benefits, using a CAA eliminates the risk of losing original documents during transit. The process involves scheduling an appointment with the CAA, providing your identification documents, and completing the necessary forms. The CAA then submits the application package to the IRS on your behalf. This service is particularly valuable for individuals in Poland who might find direct interaction with the IRS or mailing original documents daunting. The itin.net service provides this expertise, guiding clients through the required forms and ensuring the application meets IRS standards.

Next Steps After LLC Formation

Once your U.S. LLC is formed and you have obtained your EIN, the next crucial step is to open a U.S. business bank account. This account is essential for receiving Stripe payouts and managing your business finances separately from your personal funds in Poland. Many U.S. banks and financial technology companies offer accounts suitable for non-residents, though requirements can vary. After securing your bank account, ensure you understand and comply with all ongoing U.S. tax obligations. This includes filing annual reports with your state of formation and, importantly, filing Form 5472 with the IRS if you are a foreign owner of a U.S. LLC. If you haven't already, consider consulting with a U.S. tax professional specializing in international tax matters to ensure full compliance. For Substack writers in Poland, establishing a U.S. LLC is a proactive step towards professionalizing your online business and ensuring smooth financial operations. Review the itin.net LLC formation services or contact us for personalized assistance.

Practical tips

  • Use the exact same legal name on your Articles of Organization, Operating Agreement, and passport to prevent formation or IRS rejection.
  • When applying for an EIN via fax or mail from Poland, ensure your U.S. business address is valid and clearly listed on Form SS-4.
  • File Form 5472 annually for your foreign-owned U.S. LLC, even if the LLC had no reportable transactions, to avoid significant IRS penalties.
  • Prioritize opening a U.S. business bank account immediately after receiving your EIN; many banks require it to activate online payment services like Stripe.
  • Understand the implications of the Corporate Transparency Act's Beneficial Ownership Information (BOI) filing. Ensure your entity is compliant within the required timeframe.

Frequently asked questions

Can I form a U.S. LLC as a Polish citizen without visiting the U.S.?

Yes, as a Polish citizen, you can form a U.S. LLC without visiting the United States. The entire process, including filing formation documents and obtaining an EIN, can be completed remotely. You will need a U.S. business address and a registered agent, which can be services accessible online.

Do I need an ITIN to form a U.S. LLC?

You do not need an ITIN to form a U.S. LLC itself. However, you will need an EIN (Employer Identification Number) for your LLC, which is obtained by filing Form SS-4 with the IRS. If you are a foreign owner and need to file certain U.S. tax returns (like Form 1040-NR) or claim tax treaty benefits, you may later need an ITIN. A Certified Acceptance Agent can assist with both ITIN and EIN applications.

How does the U.S.-Poland tax treaty affect my U.S. LLC?

The U.S.-Poland tax treaty can help prevent double taxation and may offer reduced withholding rates on certain types of income. For a U.S. LLC owned by a Polish resident, the treaty primarily impacts how business profits are taxed and potentially reduces withholding on dividends or other distributions if the LLC structure were to be a C-corp (which is less common for Substack writers). It's important to consult a tax professional familiar with the treaty to understand its specific benefits for your situation.

What are the annual reporting requirements for a U.S. LLC owned by a Polish resident?

Annually, you must file a report with the state where your LLC is registered, which typically involves a franchise tax or annual report fee. Crucially, as a foreign owner of a U.S. LLC, you must file IRS Form 5472 to report transactions between yourself and the LLC. Failure to file this form incurs significant penalties. Additionally, you may need to file a U.S. federal income tax return (Form 1120-F or 1040-NR, depending on circumstances) if the LLC generates U.S.-sourced income effectively connected with a U.S. trade or business.

Can I use my Polish bank account for Stripe payouts?

Stripe generally prefers U.S. bank accounts for payouts, especially when you are operating a U.S. entity like an LLC and have an EIN. While some international payouts might be possible depending on Stripe's policies and your location, having a U.S. business bank account linked to your LLC's EIN is the most reliable and compliant method for receiving Substack payments through Stripe.

How long does it take to get an EIN for my U.S. LLC from Poland?

Applying for an EIN directly from Poland can take several weeks if done via fax or mail, as you cannot use the IRS online application without a U.S. SSN. Using a service like itin.net, which acts as a third-party designee, can significantly expedite the process, often securing your EIN within days rather than weeks.

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