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Illustration for an ITIN Renewal article aimed at SaaS founders based in Lithuania
ITIN12 min read

How SaaS founders from Lithuania Get an ITIN Renewal

Lithuanian SaaS founders: learn how to renew your ITIN for U.S. tax compliance. Understand triggers, required documents, and the application process.

Reviewed by , ITIN Specialist at itin.net.

Why Lithuanian SaaS Founders Need ITIN Renewal

Software-as-a-Service founders in Lithuania often require an Individual Taxpayer Identification Number (ITIN) for U.S. business operations, particularly for establishing a U.S. presence through entities like Delaware C-Corps or Wyoming LLCs. Obtaining an EIN, opening a U.S. bank account, and processing payments through platforms like Stripe frequently necessitate an ITIN for non-U.S. persons involved in the ownership or management. The specific challenge for this group arises when their existing ITIN expires, impacting their ability to maintain these essential U.S. business functions. Unlike U.S. residents, Lithuanian founders typically do not file U.S. income tax returns annually, leading to ITIN expiration due to non-use. This situation directly impedes their U.S. business activities, necessitating a proactive approach to ITIN renewal rather than waiting for IRS notices.

The U.S. tax system requires individuals without a Social Security Number (SSN) to obtain an ITIN for tax reporting purposes. For SaaS founders operating internationally, this number is often a gateway to essential U.S. financial and legal infrastructure. When an ITIN lapses, it can create immediate operational disruptions. For instance, a U.S. bank might freeze accounts, or payment processors could flag transactions, leading to significant business interruptions. Therefore, understanding the triggers for ITIN renewal and the process itself is critical for maintaining seamless U.S. operations from Lithuania.

Proactive ITIN renewal is key for Lithuanian SaaS founders. The IRS employs a rolling expiration schedule for ITINs, where numbers issued before 2013 expire every five years, and those issued after 2013 have a three-year expiration based on the middle digits. Furthermore, an ITIN is automatically invalid if not used on a federal tax return for three consecutive tax years. For founders who primarily operate outside the U.S. and may not have U.S. source income requiring annual tax filing, this non-use clause is a common trigger for expiration. Relying solely on the IRS to send a notice, such as a CP-48, is often too late, as not all individuals receive one. Checking the ITIN status proactively is the most reliable method to avoid unexpected issues.

This scenario is particularly relevant for SaaS founders who are forming U.S. entities to attract investment, establish credibility, or access U.S. markets. A Delaware C-Corp, commonly used for venture capital fundraising, requires compliance with various U.S. tax regulations. Similarly, a Wyoming LLC, favored by bootstrapped startups, may still need ITINs for owners or managers involved in U.S. financial dealings. Without a valid ITIN, these founders face hurdles in managing their U.S. business obligations effectively. The need for an ITIN renewal is therefore tied directly to their business strategy and operational requirements within the U.S. financial ecosystem.

When ITIN Renewal Becomes Necessary

ITIN renewal is required when your existing ITIN has expired. The IRS automatically invalidates ITINs that have not been used on a U.S. federal tax return for three consecutive tax years. This is a common situation for SaaS founders in Lithuania who may not have U.S. source income that mandates annual filing, or whose U.S. tax obligations are infrequent.

Additionally, the IRS uses a rolling expiration schedule based on the middle digits of the ITIN. ITINs issued before 2013 generally expired at the end of the year, and ITINs issued from 2013 onward with specific middle digits expire on a staggered schedule. For example, ITINs with the middle digits 70–82 expired in tax year 2020, and those with middle digits 83–99 expired in tax year 2021. It is crucial to check your ITIN status because the IRS does not universally notify individuals of impending expiration, and receiving a CP-48 notice is not guaranteed.

For SaaS founders, the trigger for renewal is often linked to business needs. If you need to update your U.S. bank account information, process payments through U.S. platforms, or comply with U.S. entity reporting requirements like Form 5472 for LLCs, a valid ITIN is essential. Failure to renew can lead to account freezes, transaction delays, or penalties. This is especially true if you are seeking U.S. investment, as investors and financial institutions expect all necessary U.S. tax identification numbers to be current.

The decision to renew an ITIN is not merely about compliance; it's about maintaining operational continuity. If your business structure, such as a U.S. LLC, requires specific filings or if you plan to engage in further U.S. financial activities, ensuring your ITIN is valid is a prerequisite. The Lithuania–U.S. tax treaty does not exempt individuals from ITIN requirements for identification purposes, although it may affect tax liability on certain income. Therefore, monitoring your ITIN's validity proactively prevents disruptions to your business and financial dealings.

Required Documentation for ITIN Renewal

Renewing your ITIN requires submitting IRS Form W-7 with the 'Renew an Existing ITIN' box checked. This form gathers your personal information and details about why you need the ITIN. Alongside the Form W-7, you must include original or certified copies of specific identification documents to verify your identity and foreign status.

The primary document required is a valid, unexpired passport. Your passport serves as proof of identity and nationality. If you do not have a passport, or if it has expired, you must submit a combination of other identification documents that, when presented together, prove both identity and nationality. These alternative documents can include a national identity card, a birth certificate, a driver's license, or a foreign voter's registration card, among others, as listed on the IRS website.

In addition to your identification, you must provide proof of your previously assigned ITIN. This is typically an IRS notice showing your ITIN, such as a CP-565 notice. If you do not have this notice, other IRS correspondence showing your ITIN might be acceptable. However, having the original ITIN assignment letter is the most straightforward way to prove your existing number.

Crucially, ITIN renewal typically requires you to submit a valid U.S. federal tax return for the year you are claiming to have a filing requirement. For SaaS founders in Lithuania, this means filing a Form 1040-NR (U.S. Nonresident Alien Income Tax Return) or another appropriate U.S. tax form. This tax return serves as the primary justification for needing an ITIN. If you are applying through a Certified Acceptance Agent (CAA), they can review your documentation and submit it on your behalf, potentially expediting the process and reducing the risk of errors. The itin.net Renewal Package includes assistance with these documentation requirements.

The ITIN Renewal Application Process

The ITIN renewal process begins with completing IRS Form W-7, ensuring the 'Renew an Existing ITIN' box is checked. You will need to provide your previously assigned ITIN, personal details, and your U.S. federal tax return for the relevant tax year. This tax return is the core document proving your need for an ITIN.

Once Form W-7 and the supporting documents are prepared, you have two primary submission options. The first is to mail all documentation directly to the IRS ITIN Operation. This method involves sending original identification documents or certified copies, which can be a risk and may lead to longer processing times. The IRS typically processes applications mailed directly within 14–20 weeks, though this can fluctuate.

The second, and often preferred, method is to apply through a Certified Acceptance Agent (CAA). A CAA is authorized by the IRS to help taxpayers complete and submit Form W-7. They can verify your original identification documents, such as your passport, and forward the application to the IRS on your behalf. This significantly reduces the risk of losing original documents and can expedite the overall timeline.

Using a CAA, like itin.net, often streamlines the process. The typical timeline for ITIN renewal through a CAA is much shorter, often within 5–10 business days for the acceptance process itself, with the IRS then taking additional time to issue the new ITIN. The CAA reviews your application for completeness and accuracy before submission, minimizing potential delays caused by errors. This is particularly beneficial for SaaS founders in Lithuania who need to maintain operational continuity and require prompt resolution of their ITIN status.

After the IRS receives your application (either directly or via a CAA), they will review it. If approved, the IRS will issue a new ITIN assignment letter, typically a CP-565 notice, to your mailing address. This process can take several weeks to months depending on the volume of applications the IRS is processing. It is advisable to check your ITIN status online or contact the IRS if you have not received a response within the expected timeframe.

Common Pitfalls for Lithuanian SaaS Founders

Lithuanian SaaS founders often encounter specific pitfalls when renewing their ITIN due to their unique business structure and international operating model. A primary mistake is neglecting to check the ITIN status proactively. Since founders may not be filing U.S. taxes annually, their ITIN can expire due to non-use without them realizing it, impacting essential services like U.S. bank accounts or payment processors.

Another common issue is confusion regarding the required tax return. While ITIN renewal requires a U.S. federal tax return, founders may mistakenly believe they need to file a return even if they have no U.S. source income. The IRS requires a return to demonstrate a U.S. tax filing requirement, which might arise from specific business activities or investments. It is essential to determine if such a requirement exists or if an alternative justification for the ITIN is applicable.

Incorrectly completing Form W-7 is also frequent. This includes failing to check the 'Renew an Existing ITIN' box, providing mismatched personal information (name, address) across documents, or omitting required fields. Even minor errors can lead to application rejection and significant delays, which is particularly detrimental for businesses operating on tight schedules.

For founders using a U.S. LLC structure, misunderstanding reporting obligations can lead to ITIN-related issues. For example, failure to file Form 5472 (Information Return of a 25% Foreign-Owned U.S. Corporation or a Foreign Corporation Engaged in a U.S. Trade or Business) when required can indirectly lead to ITIN problems if the responsible individuals lack a valid ITIN. Ensuring all U.S. entity compliance is met is part of maintaining a valid ITIN.

Finally, relying solely on the IRS to notify them of an expiring ITIN is a critical error. The IRS does not guarantee that a CP-48 notice will be sent, and even if it is, the response time may be insufficient for business needs. Founders in Lithuania should regularly verify their ITIN status through IRS resources or by consulting with a tax professional or a Certified Acceptance Agent.

Benefits of Using a Certified Acceptance Agent (CAA)

Applying for ITIN renewal through a Certified Acceptance Agent (CAA) offers significant advantages for SaaS founders based in Lithuania. A CAA is an individual or entity authorized by the IRS to assist taxpayers in obtaining ITINs. Unlike applying directly to the IRS, CAAs can authenticate your original identification documents, such as your passport, and forward your completed Form W-7 application and supporting documents to the IRS.

The primary benefit is the elimination of the need to mail original identification documents. Sending original passports or national identity cards directly to the IRS carries the risk of loss or theft during transit. By having a CAA verify your documents, you retain possession of your originals, providing peace of mind and avoiding potential travel disruptions to obtain replacements.

CAAs also play a crucial role in ensuring your application is complete and accurate before it is submitted to the IRS. They are trained on the latest IRS requirements and can identify potential errors or omissions that might otherwise lead to delays or rejection. This pre-screening process significantly increases the chances of a smooth and timely approval.

Furthermore, the typical processing timeline for ITIN renewals submitted through a CAA is often faster than direct submissions. While the IRS processing times can vary, CAAs can expedite the initial acceptance and forwarding of your application. For businesses operating across international borders, such as SaaS companies in Lithuania, minimizing delays in administrative processes is essential for maintaining operational efficiency and meeting financial obligations.

At itin.net, we serve as a Certified Acceptance Agent and offer a comprehensive Renewal Package. This service is designed to guide SaaS founders through the entire process, from document verification to submission, ensuring compliance and efficiency. By leveraging a CAA, you can navigate the complexities of ITIN renewal with greater confidence and speed, allowing you to focus on growing your SaaS business.

Next Steps After ITIN Renewal

Once your ITIN renewal application is approved by the IRS, you will receive a new ITIN assignment letter, typically CP-565, by mail. This letter confirms your renewed ITIN and should be stored securely with your other important tax documents. It is advisable to check your ITIN status with the IRS if you have not received this notification within the expected timeframe, which can range from several weeks to a few months.

With your renewed ITIN, you can now proceed with or continue essential U.S. business activities. This includes maintaining your U.S. bank account, processing payments through U.S. financial platforms, and fulfilling any U.S. tax filing obligations. If you formed a U.S. LLC or another entity, ensure all related compliance, such as Form 5472 filings, are up-to-date using your valid ITIN.

For SaaS founders, this means uninterrupted access to services like Stripe or other payment gateways that may require a valid ITIN for account verification or international transactions. It also ensures that your U.S. entity remains in good standing with the IRS, preventing potential penalties or issues with investors.

If you are unsure about your specific U.S. tax obligations or the implications of your business structure on your ITIN requirements, consult with a qualified tax professional or legal advisor. They can provide tailored guidance based on your unique situation as a SaaS founder operating from Lithuania.

Reviewing the itin.net Renewal Package pricing and options is a practical next step for many founders needing to ensure their ITIN renewal is handled efficiently and correctly. Alternatively, if you have specific questions about your situation, contacting itin.net for assistance can provide clarity and support throughout the renewal process.

Practical tips

  • Use the same legal name across Form W-7, your passport, and any prior IRS correspondence—mismatched name fields are the most common rejection reason.
  • If you are applying through a Certified Acceptance Agent (CAA), you do not need to mail your original identification documents; the CAA will verify them.
  • Proactively check your ITIN status on the IRS website or through a CAA rather than waiting for a CP-48 notice, which may not be sent.
  • Ensure your submitted U.S. federal tax return accurately reflects your filing requirement and is complete to avoid application delays.
  • Keep a copy of your renewed ITIN assignment letter (CP-565) and all supporting documents for your records.

Frequently asked questions

Can a Lithuanian SaaS founder renew their ITIN from Lithuania without visiting the U.S.?

Yes, ITIN renewal can be completed entirely from Lithuania. You can mail your application directly to the IRS or, more conveniently, use the services of a Certified Acceptance Agent (CAA) like itin.net, who can handle the process remotely.

How long does it take to renew an ITIN through a CAA?

While the IRS processing times can vary, the acceptance process by a Certified Acceptance Agent typically takes 5–10 business days. The IRS then takes additional weeks or months to issue the new ITIN after receiving the application from the CAA.

What if I don't have my old ITIN notice (CP-565)?

If you cannot locate your original ITIN notice, you can request a Taxpayer Identification Number (TIN) status letter from the IRS. However, having the original notice or other IRS correspondence showing your ITIN greatly simplifies the renewal process.

Do I need a U.S. tax filing requirement to renew my ITIN?

Yes, typically you must submit a U.S. federal tax return for the year you are claiming to have a filing requirement. This return serves as the primary justification for needing an ITIN. If you are unsure about your filing requirement, consult a tax professional.

How does the Lithuania–U.S. tax treaty affect my ITIN renewal?

The Lithuania–U.S. tax treaty primarily affects tax liabilities on certain types of income. It does not exempt you from the requirement to have a valid ITIN for identification purposes if you are engaged in U.S. business activities or have U.S. tax obligations.

What is the cost of ITIN renewal for Lithuanian SaaS founders?

The IRS does not charge a fee for processing an ITIN application or renewal. However, Certified Acceptance Agents like itin.net charge service fees for their assistance. The itin.net Renewal Package is priced at $397.

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