BEAT Tax for Foreign-Owned US Companies: 10.5% Rate and Related Party Payment Rules in 2026

If you’re a non-US founder running a US company, tax rules can feel like a maze. But understanding one specific tax—BEAT—is critical to your bottom line. Whether you own an LLC or C-Corp, the Base Erosion and Anti-Abuse Tax (BEAT) at 10.5% could significantly impact how much you pay Uncle Sam. Let’s break this down in simple terms.

What Is BEAT and Why Should You Care?

BEAT is a minimum tax on large companies that exceed a specified threshold for outbound payments (e.g., interest payments) from the United States to foreign countries. In simpler terms, it’s a tax designed to stop companies from shifting profits out of the US by making large payments to foreign-related parties.

The key word here is “related.” If you’re paying your foreign parent company, foreign affiliate, or any related foreign entity—think royalties, interest, management fees, or service payments—BEAT might apply to you.

10.5% became the new permanent BEAT core rate beginning in 2026. This is important: the rate was locked in at 10.5% rather than the previously scheduled 12.5% increase. This happened through the One Big Beautiful Bill Act (OBBBA) signed into law in 2025.

Who Is Subject to BEAT?

Not every US company pays BEAT. You only need to worry about it if you meet two conditions:

• Size threshold: BEAT applies only to large multinational enterprises, those with gross receipts of more than $500 million (averaged over the prior three years).
• Payment threshold: It also applies only to a corporation that makes more than 3 percent of its total deductible payments to foreign affiliates.

So if your US company is still in early-stage growth and hasn’t hit $500M in annual revenue, you’re likely safe from BEAT. But as you scale, this becomes crucial.

What Are “Related Party Payments” Under BEAT?

Base erosion payments can be deductible payments such as interest, royalties, or service payments. These are the payments BEAT is designed to target. Let me give you practical examples:

• Interest payments: Loans from your foreign parent company to your US subsidiary
• Royalties: Payments for intellectual property, patents, or trademarks owned by your foreign parent
• Service fees: Management, consulting, or administrative services from a foreign affiliate
• Rent: Payments for property leased from a related foreign party

Here’s a critical exception: BEAT excludes payments that can be treated as cost of goods sold. If you’re manufacturing products and paying a foreign supplier (related or not), those COGS payments don’t count toward BEAT.

How Does BEAT Actually Calculate?

The BEAT is a minimum tax add-on: A US corporation calculates its regular US tax, at a 21 percent rate, and then recalculates its tax at a lower BEAT rate after adding back the disallowed deductible payments. If the regular tax is lower than the BEAT, then the corporation must pay the regular tax plus the amount by which the BEAT exceeds the regular tax.

Let’s use a concrete example:

• Your US company earns $100 million in revenue
• You pay $30 million in royalties to your foreign parent
• Your regular taxable income is $70 million
• Regular tax at 21%: $14.7 million
• BEAT tax on $100 million at 10.5%: $10.5 million
• You pay the BEAT amount because it’s lower than regular tax (unless other credits apply)

This is why BEAT matters—it can become your alternative minimum tax.

Related Party Payment Rules: What You Must Know

The definition of “related party” is broader than you might think. Under US tax law, a related party includes:

• Your foreign parent company
• Sibling companies (other subsidiaries of the same parent)
• Foreign entities where you have 50% or more ownership
• Any entity that owns 50% or more of you

This is where many non-US founders run into trouble. You might think you’re making an arm’s-length business payment, but the IRS classifies it as a related-party payment. When that happens, it counts toward BEAT.

The Base Erosion Percentage Test

Even if you’re a large company, you only owe BEAT if your “base erosion percentage” exceeds 3%. This means more than 3% of your total deductible payments go to foreign-related parties.

The math is simple:

Base Erosion % = (Related Party Deductible Payments) ÷ (All Deductible Payments) × 100

If this percentage stays at 3% or below, BEAT doesn’t apply—even if you meet the $500M threshold.

BEAT Planning Strategies for Foreign-Owned Companies

Understanding BEAT is the first step; minimizing it is the second. Here are realistic strategies:

1. Optimize Your Capital Structure

Instead of your foreign parent loaning capital to your US company at high interest rates, consider equity investments. Dividend payments to foreign shareholders aren’t BEAT deductions (though they may be subject to withholding tax).

2. Use Transfer Pricing Strategies

Work with a tax advisor to ensure payments to related parties reflect fair market value. Overpaying a related party increases base erosion payments and BEAT exposure.

3. Capitalize Costs Into Inventory

If you purchase goods from a foreign affiliate, ensure those costs are properly capitalized into inventory and treated as COGS rather than as separate service or royalty payments. COGS excludes you from the BEAT calculation.

4. Consider Entity Structure

If you haven’t registered your US company yet, consider how your entity choice affects BEAT. An LLC taxed as a partnership might have different implications than a C-Corp. This is where consulting on Form 1120 vs 1065 filing helps clarify which tax return your foreign-owned business actually needs.

5. Maintain Detailed Records

Keep meticulous records of all payments to related parties and their business purpose. If the IRS examines your BEAT calculation, you’ll need to defend why payments qualify for exceptions.

BEAT and Your US Company Formation

When you’re forming your US LLC or C-Corp as a foreign founder, BEAT probably isn’t on your radar. But it should be part of your tax planning conversation from day one.

e-startup.io helps you not just register your US company, but structure it in a tax-efficient way. When you work with us for LLC formation or C-Corp formation, our team discusses potential BEAT exposure based on your corporate structure and planned intercompany payments.

Even if you’re using a registered agent (which you must as a non-resident), that doesn’t address BEAT. But our service can help you think through the bigger tax picture.

BEAT Reporting and Compliance

If BEAT applies to you, you must file Form 8991 (Tax on Base Erosion Payments of Taxpayers with Substantial Gross Receipts) with your US tax return.

This six-page form requires you to:

• Determine if you’re an “applicable taxpayer” (meets size and payment thresholds)
• Calculate all base erosion payments by type
• Compute your “modified taxable income”
• Calculate BEAT at 10.5%
• Compare BEAT to regular tax and pay the difference (if any)

Missing this filing or underreporting BEAT liability can trigger penalties, so accuracy matters.

How BEAT Interacts With Other International Tax Rules

BEAT doesn’t exist in isolation. As a foreign founder with a US company, you’re navigating a complex web of rules. BEAT intersects with:

• Subpart F Income: Foreign base company income taxed to US shareholders in the year earned. Read more about which foreign-owned LLC distributions trigger US taxation.
• NCTI (formerly GILTI): A minimum tax on foreign earnings of US companies with foreign subsidiaries
• Form 5472 Reporting: Foreign-owned entities must report all intercompany transactions to the IRS. For more details, check out Form 5472 compliance requirements and penalties.

Each rule adds to your compliance burden and potential tax exposure. This is why working with experienced advisors from the beginning—even when forming your company—saves thousands in taxes over time.

Practical Example: BEAT for an Indian Founder

Let’s say you’re an Indian entrepreneur with a successful tech startup in Bangalore. You decide to expand into the US market by setting up a Delaware C-Corp. Your parent company (the Indian entity) will own the US company.

From India, you plan to:

• Charge the US company $5M annually for platform licensing (royalty)
• Charge the US company $2M for management services
• Lend the US company $10M at 5% interest ($500K annual interest)

The US company projects $50M in gross revenue. Its total deductible payments to the Indian parent: $7.5M (5M royalty + 2M services). Its total deductible payments (to all parties): $25M (including salaries, vendor payments, etc.).

Base Erosion %: 7.5M ÷ 25M = 30%

This exceeds 3%, so BEAT applies. The US company owes BEAT at 10.5% on modified taxable income. By restructuring—perhaps converting some royalties to equity returns or using a dividend instead of a management fee—you reduce base erosion payments and BEAT exposure.

Common BEAT Mistakes Foreign Founders Make

Mistake 1: Not tracking related party payments
Many founders think “it’s just internal transactions, no big deal.” Wrong. The IRS requires detailed documentation of every payment to a related party, with business justification.

Mistake 2: Ignoring the 3% threshold
Founders sometimes assume small payments don’t matter. But if 3%+ of your deductions go to related parties, BEAT kicks in—even if the total amount is modest.

Mistake 3: Failing to plan before scaling
Once you hit $500M in gross receipts, BEAT becomes a real concern. But the time to plan is before you get there. Structure your intercompany payments strategically from day one.

Mistake 4: Not considering BEAT when choosing entity type
C-Corps and LLCs have different BEAT implications. If you’re already using an LLC and hitting large revenues, converting to a C-Corp might make sense from a BEAT perspective.

BEAT and Your Ongoing Compliance

If you already have a US LLC or C-Corp, BEAT becomes part of your annual compliance routine. You need to file Form 8991 alongside your Form 1120 (C-Corp) or Form 1065 (Partnership/LLC).

For Delaware C-Corps, there are also state-level compliance requirements. Check out our guide on Delaware C-Corp annual compliance including franchise tax and ongoing filings.

Looking Ahead: Will BEAT Change Again?

The current 10.5% rate is now permanent under OBBBA. However, Congress could change it again. The Trump administration has signaled interest in international tax policy, so BEAT could be subject to further adjustment.

For now, the 10.5% rate is your planning baseline. Monitor tax law changes annually, especially if your company is scaling toward that $500M threshold.

Getting Help With BEAT and US Company Formation

BEAT is complex, but you don’t have to navigate it alone. When you register your US company with e-startup.io, we help you think through tax implications from the start. We discuss:

• Whether a C-Corp or LLC makes sense for your situation
• How to structure your capital and related-party payments
• EIN registration so you can start banking and tax compliance immediately
• How to set up proper record-keeping from day one

As a non-US founder, you have unique challenges. BEAT is just one. There’s also FBAR, FATCA, beneficial ownership reporting, and more. Starting with the right company structure saves you money later.

Frequently Asked Questions About BEAT

Q1: If my US company is still small (under $500M revenue), can I ignore BEAT?

For now, yes. BEAT only applies to companies with over $500M in average gross receipts. But start thinking about your intercompany payment structure early. Once you scale, these decisions become harder to change without tax consequences. When you’re planning your US company formation, discuss this with your advisor.

Q2: If I own my US company 100%, am I a “related party” to myself?

This depends on your ownership structure. If you personally own the US company, and separately own a foreign entity, they may not be related for BEAT purposes. But if a foreign corporation owns both, then yes—they’re related parties. Structure matters, so get professional advice when forming your entity.

Q3: Can I deduct my foreign parent’s loan interest and avoid BEAT?

Interest paid to a foreign parent is a “base erosion payment” and counts toward BEAT. However, if your interest rate is reasonable and properly documented, it’s a legitimate deduction—you just have to account for it in your BEAT calculation. The 10.5% rate applies to modified taxable income that includes these payments.

Q4: Does BEAT apply to S-Corps or LLCs?

BEAT applies to corporations. If your LLC is taxed as a partnership (disregarded entity), BEAT may not apply in the same way. But if your LLC elects to be taxed as a C-Corporation, BEAT could apply. This is another reason entity choice matters—discuss it when you’re forming your company.

Q5: What if I restructure my intercompany payments mid-year to reduce BEAT?

The IRS scrutinizes transactions that look solely designed to avoid BEAT. Any change must have legitimate business purpose. The good news: restructuring for legitimate reasons (like using equity instead of debt) often reduces BEAT naturally. Work with a tax advisor to ensure your changes are defensible.

Take Action: Structure Your US Company Right From the Start

BEAT at 10.5% is a real cost for growing, foreign-owned US companies. But smart planning from day one minimizes it. Whether you’re just starting or already operating, get your structure right.

Ready to form your US LLC or C-Corp with tax efficiency in mind? Visit e-startup.io today. We’ll help you register your company, obtain your EIN, and set you up for long-term success—with BEAT and other US tax rules factored in from the beginning.

As a non-US founder, you deserve advisors who understand your unique situation. Let’s build your US company the right way.