
Subpart F, created by Congress in 1962, addresses tax deferral opportunities by mandating current taxation on specific types of movable income, such as dividends, interest, rents, and royalties. This primarily applies to U.S. shareholders of a Controlled Foreign Corporation (CFC), who must include their pro-rata share of the CFC's Subpart F income in their gross income for the year it is earned. While rents are generally considered Subpart F income, there is an exception for active rents, where rents are derived from a CFC's active trade or business and are not received from a related person. This distinction between passive and active income is crucial in determining the applicability of Subpart F income taxation.
| Characteristics | Values |
|---|---|
| What is Subpart F Income? | Subpart F income includes various types of passive and mobile income generated by CFCs, which are subject to current taxation for U.S. shareholders. |
| Who does it apply to? | Subpart F rules apply to U.S. shareholders of a Controlled Foreign Corporation (CFC). |
| What is CFC income? | CFC income includes undistributed earnings, which are treated as deemed dividends for U.S. shareholders. |
| What types of income are considered Subpart F income? | Foreign base company income (FBCI), insurance income, certain types of services income, dividends, interest, rents, royalties, capital gains from certain asset sales, annuities, international boycott factor income, illegal bribes and kickbacks, income from related-party transactions, and income derived from certain designated terrorism-sponsoring countries. |
| What are the requirements for Subpart F rules to apply? | The individual must be a U.S. shareholder, and the foreign corporation must be classified as a CFC. |
| How is Subpart F income calculated and reported? | Taxpayers must identify the types of income subject to Subpart F taxation, calculate the amount attributable to each CFC based on ownership percentage, and report it on their U.S. tax returns using Form 5471 and Schedule G. |
| Are there any exceptions to Subpart F taxation? | Yes, the Active Rents Exception excludes rents derived from a CFC's active trade or business and not received from a related person. Other exceptions include the de minimis rule and the high-tax exception. |
| How does Subpart F relate to GILTI? | GILTI (Global Intangible Low-Taxed Income) captures overseas profits and requires U.S. taxpayers to report and pay taxes on foreign earnings annually. While Subpart F focuses on passive income, GILTI includes all gross income and provides a clearer definition for taxation. |
| What is the tax rate for Subpart F income? | For a C corporation, the maximum tax rate is 21%, while for individuals and pass-through entities, it is 37%. Subpart F income may also be subject to the Net Investment Income Tax (NIIT), resulting in additional tax liability. |
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What You'll Learn

Passive income
The active rents exception is an important consideration within Subpart F. This exception states that if rents are derived from a CFC's active trade or business and are not received from a related person, they do not constitute Foreign Personal Holding Company Income (FPHCI) and are spared the tax treatment of Subpart F. This exception encourages active business operations and distinguishes between passive and active income sources.
It's important to note that the rules and requirements for Subpart F income taxation are complex and subject to change. US shareholders of CFCs should carefully review the applicable regulations and seek professional tax advice to ensure compliance with the latest tax laws and requirements.
Additionally, the Global Intangible Low-Taxed Income (GILTI) regime, introduced by the TCJA, further expanded the scope of taxation on foreign earnings. GILTI includes all gross income, providing a broader definition that captures a wider range of income types. The interplay between Subpart F and GILTI can be complex, and it's important for taxpayers to understand how their income may be affected by these different regimes.
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Active rents exception
Subpart F, created by Congress in 1962, mandates current taxation on specific types of "movable" income, including dividends, interest, rents, and royalties. This is to curb tax avoidance by treating certain income types as immediately taxable.
When a US person owns a Controlled Foreign Corporation (CFC), certain types of income generated from the corporation may be subject to US taxes on passive CFC income, even if the income was not distributed. This is referred to as Subpart F income. If a person owns a passive investment company that is a CFC, such as a holding company that generates income through rents, that income can be considered passive income and thus subject to Subpart F income.
However, taxpayers may qualify for an exception if the income generated meets the "active rents exception". The active rents exception spares taxpayers from the harsh tax treatment of Subpart F. The key elements of this exception are that the rents must be derived from an active trader business, not a passive one, and they must not be received from a related party, which would impact the related party rules.
According to IRC 954(c)(2)(A, B), if rents or royalties are derived from a CFC's active trade or business and are not received from a related person, then the receipts do not constitute FPHCI. Treas. Reg. 1.954-2(c) and (d) provide guidance for determining whether rents and royalties are derived in the active conduct of a trade or business.
For example, if a controlled foreign corporation purchases an aircraft and leases it to others, incurring active leasing expenses equal to or in excess of 10% of its adjusted leasing profit, the rents are considered derived in the active conduct of a trade or business. Similarly, if a controlled foreign corporation owns an office building, a portion of which it leases out and for which it acts as a rental agent, employing a substantial staff to perform management and maintenance functions, the rents received from such leasing operations are considered derived in the active conduct of a trade or business.
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CFC income
Subpart F income includes various types of passive and mobile income generated by CFCs (Controlled Foreign Corporations), which are subject to current taxation for U.S. shareholders. CFCs are corporate entities that are registered and conduct business in a different jurisdiction or country than the residency of their controlling owners.
There are several categories of income that are considered Subpart F income, including foreign base company income (FBCI), insurance income, and certain types of services income. One specific type of FBCI is foreign personal holding company income (FPHCI), which includes passive-type income such as rents.
However, there is an exception to the classification of rents as Subpart F income, known as the active rents exception. Under this exception, if rents are derived from a CFC's active trade or business and are not received from a related person, they do not constitute FPHCI and are spared the tax treatment of Subpart F.
In conclusion, while rents generated by a CFC can be considered Subpart F income and subject to taxation for U.S. shareholders, there are exceptions, such as the active rents exception, that may exclude certain rent income from this classification.
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Foreign base company income
FBCI is defined in IRC Sec. 954, which states that FBCI includes FPHCI, FBCSI, and FBCSvI. FPHCI includes dividends, interest, royalties, and rents. FBCSI is income derived from the purchase of property from a related party, where the property is manufactured, produced, grown, or extracted outside the CFC's country of incorporation and is sold for use, consumption, or disposition outside that country. FBCSvI is income derived from performing technical, managerial, engineering, architectural, scientific, skilled, industrial, commercial, or similar services for a related person outside a CFC's country of incorporation.
An exception to FBCI is made for high-tax income. Additionally, there is an active rents exception, where if rents or royalties are derived from a CFC's active trade or business and are not received from a related person, they do not constitute FPHCI.
To report Subpart F income, U.S. shareholders must include their pro rata share of a Controlled Foreign Corporation's (CFC) Subpart F income in their gross income for the year it is earned, even if no distribution is made. This is primarily done through Form 5471, which provides details on the CFC's earnings, profits, and shareholder information.
Subpart F was created in 1962 to address tax deferral opportunities, mandating current taxation on specific types of "movable" income, such as dividends, interest, rents, and royalties, particularly from jurisdictions with low or no tax rates.
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U.S. shareholder requirements
The U.S. shareholder requirements for Subpart F income taxation are as follows:
Firstly, the individual must be a U.S. shareholder. This means that the person must be a U.S. taxpayer with ownership in a foreign corporation. The foreign corporation must be classified as a Controlled Foreign Corporation (CFC), which occurs when more than 50% of its stock is owned by U.S. shareholders.
Secondly, the CFC must generate specific types of income that are considered Subpart F income. This includes foreign base company income (FBCI), insurance income, certain types of services income, and passive income such as dividends, interest, rents, royalties, and capital gains from certain asset sales.
Thirdly, the U.S. shareholder must include their pro-rata share of the CFC's Subpart F income in their gross income for the year it is earned, even if the income is not distributed to them. This is typically reported through Form 5471, which includes details on the CFC's earnings, profits, and shareholder information.
It is important to note that there are exceptions to Subpart F income rules. For example, if the CFC's Subpart F income is less than $1 million or 5% of its gross income, it may not be considered Subpart F income. Additionally, income taxed at a rate greater than 90% of the U.S. corporate tax rate may not be treated as Subpart F income.
Furthermore, U.S. shareholders should be aware of the interaction between Subpart F and Global Intangible Low-Taxed Income (GILTI) regulations. While both aim to prevent tax deferral on foreign income, they differ in scope and targeted income types. U.S. shareholders of CFCs must include their share of GILTI in their taxable income, and careful consideration is required to avoid double taxation on the same income.
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Frequently asked questions
Subpart F income includes various types of passive and mobile income generated by CFCs, which are subject to current taxation for U.S. shareholders.
CFC stands for Controlled Foreign Corporation.
The active rents exception states that if rents or royalties are derived from a CFC's active trade or business and are not received from a related person, then the receipts do not constitute FPHCI.
FPHCI stands for Foreign Personal Holding Company Income. It includes passive-type income, such as dividends, interest, rents, and royalties.
While both Subpart F and GILTI aim to prevent the deferral of foreign income, they differ in scope and the types of income they target. Subpart F specifically targets passive income, while GILTI includes all gross income.

































