A fund structure study describes a standard U.S. private equity fund structure as a cluster of legal entities, not a single company. At minimum it includes a Delaware limited partnership that holds the investments, a general partner LLC that controls it, a separate management company that employs the investment team, the limited partners who supply the capital, and a layer of special purpose vehicles and blocker corporations built around individual deals and investor tax profiles.
That cluster multiplies with every fund vintage. Each new fund requires its own fund and GP entities, usually plus parallel funds, feeder vehicles, and deal-level SPVs, while predecessor fund entities remain legally alive through their own wind-down. In this internal hypothetical, counting those entity layers across four active vintages with 8 to 12 portfolio companies per fund yields a plausible working estimate of 60 to 100 active legal entities, each potentially carrying registered agent and annual state obligations.
The five entities in a standard private equity fund structure
Most buyout and growth funds are built from the same five components, arranged like this:
TOP TIER [Management Company (LLC)] [General Partner (LLC)] [Limited Partners] employs the team, holds IP signs the LPA, controls pensions, endowments, receives management fees the fund, receives carry sovereign wealth funds
| | |
management agreement GP interest capital commitments
| | |
+----------------------------+----------------------------+
|
FUND TIER [THE FUND (Delaware LP)]
holds all investments
|
+----------------------------+----------------------------+
| | |
DEAL TIER [ SPV / Bidco ] [SPV/Bidco] [ Blocker Corp ]
Portfolio Co A Portfolio Co B
The fund: a Delaware limited partnership
The fund itself is a limited partnership governed by a Limited Partnership Agreement (LPA) and a certificate of limited partnership filed with the state under the Delaware LP Act. The LPA sets funding procedures, profit sharing, investment guidelines, and the carried interest percentage.
The ILPA Model LPA sets a 10-year term with up to two one-year extensions: the first requires the Advisory Committee's prior written consent, and the second requires the prior written consent of a majority in interest of the limited partners.
Limited partners
Pension plans, endowments, and sovereign wealth funds supply the bulk of the capital, committing at closing and funding in stages as the general partner issues capital calls. Under 6 Del. C. § 17-303(a), a limited partner is not liable for the obligations of the limited partnership unless that partner is also a general partner or otherwise participates in control of the business.
The practical cap on an LP's exposure to committed capital comes from the LPA itself, not from the statute directly; the statute is what protects LPs from being pulled into liability for the fund's obligations in the first place. That protection is why LPs hold information and consent rights rather than management authority.
The general partner LLC
The general partner position carries unlimited liability under the LP form, so sponsors fill it with an LLC rather than exposing individual principals. Each fund vintage gets a vintage-specific GP entity, keeping each vintage's general partner separate.
The GP earns carried interest, typically 20% of cumulative net profits above a specified hurdle rate (usually 8%), only if the fund is sufficiently profitable, though exact terms vary by fund and should be confirmed against the current fund's LPA.
The management company
The management company is a separate vehicle, usually also an LLC, owned by the management team. It employs the fund manager and investment professionals and holds the employment contracts, leases, IP, insurance, and platform contracts as the long-term operating business of the firm.
A management agreement between the fund (acting through its GP) and the management company sets the terms of appointment. Management fees flow to the management company; interest flows through the GP.
SPVs and the portfolio company stack
Below the fund sit the deal vehicles. Each portfolio acquisition typically involves a tiered holding company stack, including intermediate holding companies between the fund and acquisition vehicle.
Why Delaware, and why this exact entity mix
Get the entity mix wrong and you pay federal tax at the fund level, expose your principals personally to portfolio company claims, and lose the ability to write the economics you actually negotiated. The LP-plus-GP-LLC design is the fix for all three.
Pass-through taxation
The partnership form avoids entity-level federal income tax through pass-through taxation. Carried interest retains the fund's tax character, primarily long-term capital gains, because the GP and carry recipients have partner tax status in the fund.
For taxpayers above the top capital gains bracket and the net investment income tax threshold, the combined federal rate on that carry is 23.8%: the 20% top long-term capital gains rate plus the 3.8% net investment income tax under 26 U.S.C. § 1411. Taxpayers below those thresholds pay a lower combined rate; confirm against current-year brackets and the recipient's specific circumstances.
Liability separation
Delaware codifies limited partner protection at 6 Del. C. § 17-303(a): an LP is not liable for partnership obligations unless it participates in control of the business. Placing the unlimited-liability GP role in a dedicated LLC keeps the management company's assets and employees insulated from fund creditor and portfolio company claims.
Contractual freedom
Delaware's LP Act states its policy is to "give maximum effect to the principle of freedom of contract and to the enforceability of partnership agreements" under 6 Del. C. § 17-1101(c). Delaware lets an LPA modify or eliminate a general partner's fiduciary duties, subject only to the implied covenant of good faith; the statute's Section 17-1101(d) permits this elimination, and the LLC Act's § 18-1101(c) works the same way for LLCs.
Delaware's corporate statute does not offer this same flexibility, which is a large part of why funds use LPs and LLCs rather than corporations. ILPA's 2020 fund terms materials report that a majority of LPs have seen fiduciary duties contractually reduced across at least half of their fund investments in the prior 12 months; the precise percentage varies by source and should be confirmed against ILPA's current published survey data before citing a specific figure.
How the economics flow through the structure
Fee income has to cover a payroll and a filing calendar that keep growing while the fee rate falls. The "2 and 20" model remains the reference point, but actual fee terms have compressed for multiple consecutive vintage years.
Management fees
Preqin data shows the mean management fee for 2024-vintage buyout funds at 1.74%, down from 1.85% for the 2023 vintage, with growth equity funds averaging 1.93% for the same 2024 vintage, down from 1.97%. Separately, Bain's 2026 GP Outlook survey put the 2025 buyout vintage average near 1.6%, continuing the multi-year decline. ILPA's Private Equity Principles call for fees to step down significantly when a follow-on fund forms.
Fee-free co-investment compounds the compression: Bain's 2026 GP Outlook survey found that among funds offering co-investment, the median GP offers 33 cents of co-investment per dollar of fee-bearing commingled fund commitment, translating to roughly a 25% reduction in fee revenue on that capital.
Carried interest and the waterfall
Distributions run through a four-tier waterfall: return of capital to LPs, then the preferred return (hurdles typically run in the high single digits, with 8% the figure cited most often), then a GP catch-up, then a split of remaining profits, typically 80/20 after catch-up. The structural choice is European versus American. A European (whole-of-fund) waterfall pays the GP no carry until the entire fund has returned contributed capital plus the preferred return; an American (deal-by-deal) waterfall pays carry on each profitable exit, giving GPs earlier liquidity but LPs greater clawback risk.
ILPA's Principles favor the whole-of-fund structure as the best approach to minimize clawback liability, and ILPA's model materials recommend holding accrued carried interest in escrow with significant reserves, commonly cited at 30% of carry distributions or more.
Feeder funds, parallel funds, and blockers
The vehicles layered around the main fund each solve a specific investor tax or regulatory problem: UBTI for tax-exempt investors, ECI for non-U.S. investors, and ERISA plan asset rules for benefit plans.
Blocker corporations
Tax-exempt LPs investing directly in a partnership owe tax on their allocable share of unrelated business taxable income, regardless of how passive their role is, per IRS Publication 598. Non-U.S. investors in a partnership conducting a U.S. trade or business face effectively connected income (ECI) treatment, withholding under 26 U.S.C. § 1446, and filing obligations.
Interposing a C-corporation between the sensitive investor and the investment blocks both: the corporation pays the tax and the investor's returns are reduced accordingly. The blocker's jurisdiction can significantly affect overall investment returns.
Feeder and parallel funds
A master-feeder structure pools one set of assets in a master fund fed by an onshore LP for U.S. taxable investors and an offshore (often Cayman) feeder for non-U.S. and tax-exempt investors. A parallel fund is different: each vehicle separately owns its pro-rata slice on substantially identical terms, which PE sponsors often prefer for tax-exempt and ERISA-constrained capital.
The ERISA driver is the plan asset rule at 29 C.F.R. § 2510.3-101(f)(1): if benefit plan investors hold 25% or more of any class of equity interests (excluding interests held by the general partner, investment manager, and their affiliates from that calculation), the fund's underlying assets become "plan assets" and the manager takes on ERISA fiduciary duties.
The compliance obligations behind every box on the chart
Each entity on your chart is a live state filing obligation that persists for the fund's full 10-to-12-year life, including dormant SPVs waiting on an exit.
Delaware annual taxes
Your Delaware calendar splits in two: one date for the partnerships and LLCs, another for the blockers.
LPs, LLCs, and general partnerships: A $400.00 annual tax, generally due on the fixed date of June 1, with no annual report required. This is the current rate under Delaware House Bill 400, signed May 21, 2026, which raised the tax from $300 to $400 for LLCs, LPs, and general partnerships. The increase is effective retroactively to the 2026 tax year; the payment made by June 1, 2026 (covering the 2025 tax year) remained $300, and the $400 rate first shows up in payments due June 1, 2027.
Late payment of that annual tax: A $200.00 penalty plus 1.5% monthly interest, applied without proration if the entity was active at any point during the year. An LLC or LP that goes unpaid is administratively cancelled after three consecutive years of non-payment.
Blocker corporations: An annual report and franchise tax both generally due on the fixed date of March 1, $175.00 minimum under the authorized shares method, 200,000.00maximum(250,000.00 for Large Corporate Filers). A corporation that goes unpaid is voided after two consecutive years of non-payment.
Delaware corporations must maintain a registered agent under 8 Del. C. § 132; Delaware LLCs under 6 Del. C. § 18-104; Delaware LPs under 6 Del. C. § 17-104.
Figures and deadlines move year to year, so confirm the current amounts against Delaware Division of Corporations instructions before relying on them.
Foreign qualification across states
When a fund entity is considered to be doing business outside Delaware, the applicable state may require a certificate of authority or other foreign registration. The filing typically requires a Delaware certificate of good standing and an in-state registered agent.
Fees vary by state and entity type; confirm the current fee for the specific entity type and state against that state's official fee schedule. What counts as "doing business" also varies by state. Consult your own counsel to determine whether a particular activity triggers registration rather than treating this as legal advice.
The federal overlay
If your firm has $150 million or more in private fund regulatory assets under management, it generally registers with the SEC under the Form ADV instructions; smaller private fund advisers report as exempt reporting advisers under 17 C.F.R. § 275.203(m)-1. The 2023 Private Fund Adviser Rules were vacated in their entirety by the Fifth Circuit in National Association of Private Fund Managers v. SEC on June 5, 2024, and no longer apply.
The 2024 Form PF amendments are scheduled to take effect October 1, 2026; confirm current status against the SEC's own guidance before relying on either date.
Automate your fund structure's state compliance with Discern
A multi-vintage fund complex means dozens of LPs, LLCs, and blocker corporations, each with its own Delaware tax deadline, registered agent requirement, and foreign registrations scattered across states. Discern handles that Secretary of State layer from a single platform, drawing on approaches covered in Discern's CT Corporation alternatives guide: registered agent coverage, Delaware franchise tax filing, and foreign registrations, with deadlines tracked and forms pre-filled from your entity records.
The platform is built for portfolio scale. General partner chain tracking keeps your vintage-stacked LP and GP entities organized, auto-filings continue without manual input once configured, and the multi-entity payment setup keeps each fund's disbursements separate.
This article provides general compliance information and does not constitute legal advice. Consult qualified legal counsel for guidance specific to your situation.
Frequently asked questions
Here are answers to a few questions that come up often when mapping a fund's legal entity structure.
Why does a private equity fund need a separate general partner LLC instead of just naming a person as general partner?
The general partner role carries unlimited liability under Delaware's LP Act, so naming an individual would expose that person's personal assets to the fund's obligations. Using a dedicated LLC as the general partner contains that liability inside a separate legal entity and keeps it isolated from the management company and its employees.
Does every fund vintage need its own general partner entity?
Yes, in standard practice. Each new fund typically gets a vintage-specific GP LLC rather than reusing the prior fund's GP, which keeps each vintage's carried interest, liabilities, and governance separate even while earlier vintages are still winding down.
What happens if a blocker corporation misses its Delaware franchise tax deadline?
Delaware assesses a $200.00 penalty plus 1.5% monthly interest on the unpaid balance, and the corporation falls out of good standing. If it remains unpaid for two consecutive years, Delaware voids the corporation's charter, at which point restoring it requires a formal reinstatement process along with payment of all back taxes, penalties, and interest.
Does a dormant SPV still owe Delaware's annual tax if it has no activity?
Yes. Delaware's LP, LLC, and general partnership annual tax is assessed on any entity that was active in Delaware's records at any point during the tax year, regardless of whether it conducted business, and there is no proration. A dormant SPV waiting on an exit still owes the full annual tax and still needs a registered agent until it is formally dissolved or cancelled.
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