How a German Entrepreneur Saved on U.S. LLC Taxes with an ITIN

Problem

Markus registered a Wyoming LLC to sell SaaS products to U.S. clients. As the sole foreign owner, all income flowed to his personal 1040-NR return. Without an ITIN, he couldn't file, faced IRS penalties, and couldn't claim the Germany–U.S. tax treaty rate.

Approach

We identified Markus's filing requirement and the correct W-7 exception category. We prepared the Form W-7 alongside his 1040-NR stub return, certified his German passport, and submitted everything together to the IRS Austin processing center.

Outcomes

• ITIN issued in 63 days — before his tax deadline
• 1040-NR filed successfully with treaty benefit applied
• Reduced U.S. withholding rate from 30% to treaty rate
• LLC remains fully compliant for future filing years

Many non-residents form U.S. LLCs for legitimate reasons — asset protection, U.S. banking, professional credibility, or selling to American clients. What they often don't realize is that a single-member LLC owned by a foreigner creates a U.S. personal tax filing obligation.

The IRS requires the foreign owner to file Form 1040-NR every year. To do that, you need an ITIN.

Without an ITIN and a proper tax return, you can't claim business expense deductions, tax treaty benefits (which can cut your rate from 30% to as low as 0–15% depending on your country), or refunds on taxes already withheld.

Markus estimated he saved over $3,000 in his first filing year by properly applying his Germany–U.S. treaty rate — more than covering the cost of his ITIN application.

Getting an ITIN as an LLC owner requires filing the W-7 with an actual or attached tax return. ITINSERVICES prepared both his W-7 and the 1040-NR attachment, certified his passport, and mailed the complete package to the IRS. Markus never had to visit a U.S. embassy or mail his original passport overseas.