International Tax Planning: Strategies for Global Companies

International expansion creates a more complex tax picture. Instead of one set of rules, you're now dealing with multiple tax jurisdictions—each with their own rates, rules, and reporting requirements—plus the US rules that govern how foreign income is taxed back home.

This guide provides an overview of key international tax concepts. It's not a substitute for professional tax advice, but it will help you understand the landscape and ask better questions of your advisors.

US Taxation of Foreign Income

The United States taxes its residents (individuals) and citizens on worldwide income. US corporations are taxed on US-source income, but the rules for foreign subsidiary income are nuanced.

Controlled Foreign Corporations (CFCs)

A Controlled Foreign Corporation is any foreign corporation more than 50% owned (by vote or value) by US shareholders who each own at least 10%. Most foreign subsidiaries of US parent companies are CFCs.

CFC status triggers several US tax rules:

• Reporting requirements: Form 5471 must be filed annually for each CFC
• Subpart F: Certain "passive" income is taxed to US shareholders currently
• GILTI: Global Intangible Low-Taxed Income rules may tax operating income currently
• Section 956: Loans to US shareholders or investments in US property can trigger tax

Subpart F Income

Subpart F forces current US taxation on certain categories of CFC income that Congress viewed as easily movable to low-tax jurisdictions:

• Passive income (dividends, interest, rents, royalties)
• Income from sales or services where the CFC doesn't add significant value
• Related-party transactions that separate income from the activities that generate it

Subpart F income is taxed to US shareholders in the year earned, regardless of whether it's distributed. Active business income from operations in the CFC's home country generally isn't Subpart F.

GILTI (Global Intangible Low-Taxed Income)

GILTI, enacted in 2017, requires US shareholders to include in income a portion of their CFCs' earnings that exceed a "routine" return on tangible assets. The theory: excess returns must come from intangible assets that could have been kept in the US.

• GILTI calculation: CFC tested income minus 10% of qualified business asset investment (QBAI)
• Partial deduction: Corporate shareholders can deduct 50% of GILTI (reducing effective rate)
• Foreign tax credit: 80% of foreign taxes on GILTI can credit against the US tax
• Effective rate: After deduction and credits, effective US tax on GILTI varies based on foreign tax rates

Foreign Tax Credits

The foreign tax credit (FTC) is the primary mechanism for avoiding double taxation of income taxed by both a foreign country and the US. When your foreign subsidiary pays tax to Germany, you generally can credit that tax against your US tax on the same income.

How FTC Works

• Direct credit: For taxes paid directly to a foreign country (e.g., withholding taxes on dividends)
• Indirect/deemed-paid credit: For corporate shareholders, credit for foreign taxes paid by the CFC on income included in US tax (GILTI, Subpart F)
• Limitation: FTC is limited to the US tax that would be due on the foreign-source income

Baskets and Limitations

Foreign tax credits are calculated separately for different "baskets" of income:

• Passive income basket
• General category basket
• GILTI basket
• Branch income basket

Excess credits in one basket can't offset US tax on income in another basket. This limitation can result in "trapped" foreign tax credits when foreign tax rates exceed US rates on particular types of income.

Tax Treaties

The US has income tax treaties with approximately 70 countries. These treaties modify the normal tax rules to reduce double taxation and provide certainty about tax treatment.

Common Treaty Benefits

• Reduced withholding rates: Treaties often reduce withholding tax on dividends (e.g., 15% instead of 30%), interest (often 0%), and royalties (often 0%)
• Permanent establishment threshold: Treaties clarify when business activities create a taxable presence, often providing protection for limited activities
• Business profits: Generally, business profits are taxable only in the residence country unless there's a PE in the other country
• Tie-breaker rules: For dual residents, treaties provide rules to determine residence for tax purposes
• Mutual Agreement Procedure: Treaties provide a mechanism to resolve double taxation disputes between countries

Using Treaty Benefits

To claim treaty benefits, you typically must:

• Be a resident of one of the treaty countries
• Satisfy the "limitation on benefits" article (anti-treaty-shopping rules)
• Provide certification of eligibility (e.g., Form W-8BEN-E)
• Report treaty positions on your tax return

Value-Added Tax (VAT) and GST

Most countries outside the US impose value-added tax (VAT) or goods and services tax (GST) on sales. Unlike US sales tax, which applies only at the retail level, VAT applies at each stage of production and distribution.

How VAT Works

Businesses charge VAT on their sales (output VAT) and pay VAT on their purchases (input VAT). They remit the difference to the government. This ensures tax is collected throughout the supply chain but only ultimately borne by the end consumer.

VAT Registration

You may need to register for VAT in a foreign country if:

• You have a business establishment there
• You sell goods stored in the country
• You exceed distance selling thresholds for B2C sales
• You provide digital services to consumers (EU has special rules)

VAT Compliance

• VAT returns are typically filed monthly or quarterly
• Proper invoicing with required VAT information is essential
• B2B transactions often use reverse charge mechanism
• Digital services may use simplified registration schemes (e.g., MOSS in EU)

Tax Planning Strategies

While aggressive tax planning is increasingly scrutinized, legitimate strategies can manage your global tax position effectively.

Entity Structure

• Location decisions: Consider total tax impact when deciding where to establish entities
• Branch vs. subsidiary: Branches may allow current loss utilization; subsidiaries offer liability protection
• Check-the-box: Entity classification elections can affect how foreign entities are taxed for US purposes
• Holding companies: Intermediate holding companies in treaty jurisdictions can reduce withholding taxes

Transfer Pricing

• Proper transfer pricing ensures profits are allocated where functions and risks reside
• IP location has significant implications—where intangibles are developed and owned matters
• Intercompany financing must be at arm's length rates
• Documentation protects against penalties and supports planning positions

FDII (Foreign-Derived Intangible Income)

FDII is the carrot to GILTI's stick. US corporations can deduct 37.5% of foreign-derived intangible income (income from serving foreign markets), effectively reducing the tax rate on qualifying export income.

• Applies to income from sales of goods, services, and licenses to foreign persons
• Customer must be foreign, and property/services must be for foreign use
• Calculations are complex and require documentation of foreign use

R&D Credits

Many countries offer R&D tax incentives. Consider where R&D activities are performed and documented:

• US R&D credit for qualifying activities performed in the US
• UK Patent Box offers reduced rates on income from patented inventions
• Ireland's Knowledge Development Box provides similar benefits
• Various countries offer super deductions for R&D spending

US Reporting Requirements

International operations trigger numerous US reporting obligations. Missing these can result in severe penalties.

Working with Tax Advisors

International tax is too complex for most companies to handle internally. Here's how to work effectively with tax advisors:

What to Look For

• International expertise: Generalist CPAs may not have deep international experience
• Multi-jurisdictional capability: For multiple countries, you need coordinated advice
• Proactive approach: Good advisors identify planning opportunities, not just compliance
• Right-sized for you: Big 4 firms have expertise but may be overkill for smaller operations

Getting Value

• Involve tax advisors early in expansion decisions, not after the fact
• Provide complete information—surprises late in an engagement are expensive
• Understand the trade-offs between tax savings and operational complexity
• Get fixed fees for recurring compliance work