Foreign investors in US venture funds face a multi-part tax regime. Getting the withholding and structuring wrong costs your LPs real money.
If you are raising a Delaware fund and your LP base includes non-US investors (foreign individuals, foreign corporations, sovereign wealth funds, or international family offices), you need to understand how US tax law treats their participation. The good news is that the baseline treatment is favorable: capital gains from portfolio company exits generally are not taxed at the federal level for foreign LPs. The bad news is that the withholding rules are complex, the compliance obligations fall on the fund manager, and getting it wrong means either your LPs pay taxes they should not, or you face penalties for failing to withhold when you should have.
I deal with cross-border fund structuring regularly, and this is one of the areas where the gap between "generally favorable" and "operationally correct" is widest. The rules involve IRC Section 1446, Section 1446(f), Chapter 3 withholding, FATCA (Chapter 4), and applicable tax treaties, all interacting with each other. You need specialized tax counsel. But you also need to understand the mechanics well enough to ask the right questions and structure the fund properly from the start.
The baseline: capital gains are generally exempt
For non-US investors in a Delaware LP, capital gains from the sale of US securities (the primary return type in most venture capital and private equity funds) are generally not subject to US federal income tax, provided the fund is not engaged in a US trade or business [1][40]. This is the main reason Delaware remains attractive for international fund formation. A foreign LP can participate in a US venture fund, benefit from exits, and receive distributions of capital gains without a US federal tax liability on those gains.
This exemption applies regardless of the foreign investor's country of residence, though the specifics can be modified by bilateral tax treaties. The exemption covers gains from the sale of stock in portfolio companies, which is the primary exit mechanism for venture capital investments (IPO, acquisition, secondary sale).
Where the exemption breaks down
The capital gains exemption does not cover all types of income a fund might generate. Three categories create tax exposure for foreign LPs:
Effectively connected income (ECI). If the fund generates income that is "effectively connected" with a US trade or business, that income is taxable to foreign LPs at regular US tax rates. For a typical venture fund that invests in equity securities, ECI is uncommon. But if the fund makes certain types of operating investments, receives management fees or consulting fees from portfolio companies, or engages in activities that the IRS characterizes as a trade or business, ECI can arise. The withholding rate on ECI allocations to foreign partners is 37% for individuals and 21% for corporations [40].
FDAP income. "Fixed, determinable, annual, or periodical" income (primarily dividends and certain interest payments) is subject to a 30% withholding tax under Chapter 3 of the IRC [24]. This can be reduced by applicable tax treaties. For example, a UK-resident LP investing in a Delaware fund may benefit from a reduced treaty withholding rate on dividend income. But the default rate is 30%, and the fund manager must withhold it at the source unless a treaty reduction applies and the LP has provided valid documentation (typically Form W-8BEN or W-8BEN-E).
USRPI gains. Gains from the disposition of a US Real Property Interest (USRPI) are taxable to foreign persons under FIRPTA. This is primarily relevant for real estate funds, but it can catch venture funds off guard if a portfolio company's value is substantially attributable to US real property. The test asks whether the portfolio company is a "US real property holding corporation," meaning more than 50% of its assets by value are US real property interests. Most tech companies will not trigger this, but it is worth confirming for portfolio companies with significant real estate holdings.
Section 1446: withholding on partnership allocations
IRC Section 1446 requires the fund to withhold tax on a foreign partner's allocable share of the partnership's effectively connected taxable income [40]. The withholding rates are 37% for individual foreign partners and 21% for corporate foreign partners. This withholding is an obligation of the partnership (the fund), not the foreign LP, meaning the fund manager is responsible for calculating the correct withholding amount and remitting it to the IRS.
For venture funds, Section 1446 withholding usually comes into play when the fund has ECI. As noted above, that is unusual for a pure equity investment strategy but can arise from certain fund activities. The fund must make quarterly estimated withholding payments (using Form 8813) and file an annual return (Form 8804) [40]. Even if the fund believes it has no ECI, the analysis must be performed each year, because a portfolio company's activities or a change in fund operations could create ECI where none previously existed.
Section 1446(f): withholding on partnership interest transfers
Section 1446(f), expanded substantially by the Tax Cuts and Jobs Act of 2017, imposes a 10% withholding tax on the amount realized when a foreign person disposes of an interest in a partnership that is engaged in a US trade or business [40]. For emerging fund managers, this matters in two scenarios: when a foreign LP transfers or sells their fund interest on the secondary market, and when the fund makes certain distributions that are treated as a transfer of a partnership interest.
The mechanics are specific. The transferee (buyer) must withhold 10% of the amount realized on the transfer. If the transferee fails to withhold, the partnership itself becomes secondarily liable for the withholding obligation [40]. This means the fund manager needs to be aware of any proposed transfers of fund interests by foreign LPs and ensure that proper withholding procedures are followed. Most LPAs require GP consent for interest transfers, which gives the manager a control point to enforce withholding compliance.
There are exceptions. If the fund can certify that less than 25% of its income was ECI in the prior three years, the withholding obligation does not apply. For a typical venture fund with no significant ECI, this certification should be straightforward, but it requires the analysis to be done and documented.
FATCA and Chapter 4 withholding
The Foreign Account Tax Compliance Act (FATCA) introduces a separate set of requirements. FATCA requires foreign financial institutions to report information about US account holders to the IRS, and imposes a 30% withholding tax on certain US-source payments to non-compliant foreign institutions [24]. For a Delaware fund with foreign LPs, FATCA compliance means:
- Collecting valid W-8 forms (W-8BEN, W-8BEN-E, or W-8IMY) from all foreign LPs, confirming their FATCA status and, where applicable, their GIIN (Global Intermediary Identification Number).
- Performing due diligence on the FATCA status of each foreign LP entity to determine whether they are a participating foreign financial institution, an exempt beneficial owner, or a non-financial foreign entity.
- Withholding 30% on "withholdable payments" to non-compliant foreign LPs, unless an exception or treaty reduction applies.
FATCA compliance is an ongoing obligation, not a one-time check at onboarding. W-8 forms expire and must be renewed, and changes in a foreign LP's status or structure can affect their FATCA classification. The fund's administrator should be tracking form expiration dates and collecting updated certifications.
Tax treaty benefits
Bilateral tax treaties between the US and the LP's country of residence can cut the withholding tax on certain types of income by a wide margin. For example, the US-UK tax treaty reduces withholding on dividends from 30% to 15% (or 5% for corporate shareholders meeting certain ownership thresholds). Similar reductions exist under treaties with Germany, the Netherlands, Canada, Japan, and dozens of other countries.
To claim treaty benefits, the foreign LP must provide a properly completed W-8BEN or W-8BEN-E form that includes a treaty claim and the LP's foreign taxpayer identification number. The fund manager must review these claims and determine whether the treaty applies to the specific type of income being distributed. Treaty analysis is not mechanical. It requires understanding the specific treaty provisions and how they apply to the type of income being distributed.
Delaware state tax
Delaware itself generally does not impose income tax on entities that are solely engaged in investing and do not have Delaware-source income. For a Delaware LP that makes equity investments in companies located outside Delaware, this means no state-level income tax on the fund or its partners [21]. The fund must still file an annual return with the Delaware Division of Revenue (Form 300 Schedule K-1) reporting the allocation of income and losses to each partner [27], and pay the annual $300 franchise tax, but the state tax burden is minimal.
For foreign LPs, the absence of a Delaware state income tax on investment income means they are not dealing with overlapping state and federal tax obligations. This is another structural advantage of Delaware over states that impose their own income taxes on partnership income allocated to out-of-state or foreign partners.
Structuring considerations
For funds with a large foreign LP base, structural choices at formation can make a real difference to the tax efficiency for those investors. Some managers establish a parallel offshore fund (often a Cayman Islands LP) that co-invests alongside the Delaware fund, allowing foreign LPs to invest through a non-US vehicle that avoids US tax filing obligations entirely. Others use a blocker corporation, a US or foreign corporation that sits between the foreign LP and the Delaware fund, to convert partnership income into corporate income. This can simplify the tax picture for certain types of investors.
Delaware's Series LLC structure offers another option. A single LLC entity can establish multiple series with segregated assets, members, and management, and the IRS has indicated that each series can be treated as a separate entity for federal tax purposes [34]. For managers operating multiple related vehicles, this can provide efficiency while maintaining structural separation for tax purposes.
These choices have real economic implications for foreign LPs. The right answer depends on who your investors are, what types of income the fund expects to generate, and which treaty benefits your foreign LPs can access. This is the area where specialized international tax counsel earns their fee.
How Infra One handles foreign LP tax compliance
We manage the operational tax compliance for funds with international investor bases as part of our fund administration services. That includes collecting and validating W-8 forms, tracking form expiration dates, calculating withholding obligations on distributions to foreign LPs, preparing Schedule K-1s for both US and foreign partners, and coordinating with the fund's tax advisers on treaty claims and FATCA compliance.
If you are raising a fund with foreign LPs and want to make sure the tax compliance infrastructure is in place from day one, reach out to our team.
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