Private Equity Fund Structure: How GP/LP, 2-and-20, and Fund Life Shape PE Behavior

A private equity fund is not a company. It’s a closed-end investment vehicle with a defined life, a defined investor base, and a defined economic structure that drives every behavior of the PE buyers who show up at your door. Understanding the structure isn’t academic. It explains why PE pays the multiples they pay, why they push growth as hard as they do, when they’ll want to exit your business, and how they handle the transition. Owners who don’t understand the structure get surprised by behavior that, viewed from inside the fund, is entirely rational.

The core structure is the General Partner / Limited Partner (GP/LP) split. Limited Partners (LPs) commit capital to the fund: pension funds, endowments, sovereign wealth funds, family offices, fund-of-funds, high-net-worth individuals. They’re passive investors. The General Partner (GP) is the PE firm itself: the people who source deals, lead diligence, sit on boards, and make exit decisions. The GP earns management fees and carried interest. The LPs earn returns on their capital.

The standard economic structure is ‘2 and 20’. 2% annual management fee on committed capital, paid by LPs to the GP. 20% carried interest (carry) on profits above an 8% preferred return to LPs. The management fee covers the GP’s operating costs and team salaries. Carry is the upside — the GP’s share of the profits, only earned if the fund clears the 8% hurdle. Together, these two economic levers drive every decision the GP makes.

Fund life is 10 years, split into investment period and harvest period. The first 5 years are the ‘investment period’ — the GP makes new platform investments. The next 5 years are the ‘harvest period’ — the GP exits portfolio companies and returns capital to LPs. Some funds extend with consent (typically 1-2 years), but the 10-year clock is real. Every business the fund buys will be sold within roughly 5-7 years — including yours, if you sell to a fund. Knowing this changes how you negotiate post-close terms.

“PE fund structure isn’t a back-office topic. It’s the operating system that drives every decision a PE buyer makes about your business — when they exit, how aggressively they push growth, what risks they tolerate, and what they need from you post-close.”

Key Takeaways

• PE funds are closed-end vehicles with a 10-year life, governed by Limited Partnership Agreements between the GP and LPs.
• Fee structure: 2% management fee on committed capital plus 20% carry above an 8% LP hurdle (the ‘2 and 20’ standard, with variations).
• Fund life: 5-year investment period followed by 5-year harvest period. Some funds extend with consent. The clock drives exit timing on every portfolio company.
• GP commitment is typically 1-5% of fund size — the GP’s own capital invested alongside LPs to align incentives.
• Capital calls draw down LP commitments as deals close. Distributions return capital and profits as portfolio companies exit. LPs don’t fund the entire commitment upfront.
• Fund families progress: Fund I, Fund II, Fund III. Larger and larger commitments as the GP builds track record. Track record is a function of returns from previous funds — which depends on businesses like yours performing post-close.

What is a private equity fund?

A PE fund is a closed-end investment vehicle organized as a Limited Partnership. It exists for a defined period (typically 10 years). It raises capital from a defined group of investors (the LPs). It is managed by a single General Partner (the PE firm). It invests that capital in private companies (portfolio companies). It returns profits to investors as portfolio companies are exited. Then it winds down.

The fund is governed by a Limited Partnership Agreement (LPA). The LPA spells out: fund size, investment strategy, fund life, fee structure, hurdle rate, carry waterfall, GP commitment, key-person provisions, no-fault divorce rights, transfer restrictions, valuation methodology, and a hundred other terms. The LPA is heavily negotiated between sophisticated LPs and the GP. Larger LPs (state pension funds, sovereign wealth) often negotiate side letters with additional rights.

PE funds differ from hedge funds, venture capital, and other alternatives. Hedge funds are open-ended (LPs can redeem) and trade liquid securities. Venture capital is closed-end like PE but invests in early-stage companies. Real estate funds invest in real assets. Credit funds invest in private debt. PE is specifically focused on buyout investments in mature, profitable businesses — usually controlling stakes.

The fund and the PE firm are different things. A PE firm (the ‘sponsor’ or ‘manager’) typically manages multiple funds simultaneously: Fund I, Fund II, Fund III, plus sector-specific or region-specific funds, plus continuation vehicles. Each fund is a separate legal entity with its own LPA, LP base, and portfolio. When you sell to ‘a PE firm,’ you’re actually selling to one of their specific funds. The fund’s vintage (year started) determines how much time is left on the clock.

The GP/LP structure: who’s who

Limited Partners (LPs) are the investors who provide capital. LPs include public pension funds (state and municipal retirement systems), private pension funds (corporate retirement plans), sovereign wealth funds (national reserves managed for long-term returns), university endowments, foundations, insurance company general accounts, fund-of-funds (intermediaries that pool smaller LP capital), family offices, and high-net-worth individuals. Each LP has different return expectations, liquidity needs, and reporting requirements.

The General Partner (GP) is the PE firm that manages the fund. The GP makes investment decisions, sources deals, conducts diligence, negotiates terms, sits on portfolio company boards, drives operational improvements, and makes exit decisions. The GP earns management fees and carried interest. The PE professionals who own and run the GP are the General Partners (in the legal sense) and Principals/Partners (in the operational sense).

LPs are passive; they don’t make investment decisions. LPs commit capital but don’t direct individual investments. They have governance rights through Limited Partner Advisory Committees (LPACs) on conflicts and major decisions, but they don’t approve individual deals. This passivity is what makes the structure work: the GP is empowered to act quickly, and LPs are protected by the fund’s governance terms and economic structure rather than transactional control.

Why this structure exists. LPs need access to private equity returns but don’t have the capability to source, diligence, and manage individual investments. GPs have the capability but need scale capital. The LP/GP structure aggregates LP capital under GP management with aligned-but-not-identical incentives. The economic terms (2 and 20, 8% hurdle) are how the structure prevents the GP from extracting value at LP expense.

The 2-and-20 fee structure

The 2% management fee is paid annually on committed capital. On a $1B fund, that’s $20M per year of management fees. The fee covers the GP’s operating costs: team salaries, office space, technology, deal expenses (some recoverable), travel, due diligence advisor fees (during evaluation, not after close), and other operating expenses. The management fee is paid by LPs through capital calls, separate from investment capital.

Management fee structures vary. Some funds charge 2% during the investment period and step down to 1.5% during the harvest period. Some charge on invested capital instead of committed capital after the investment period ends. Largest LPs negotiate lower management fees (1-1.75%) in exchange for larger commitments. Smaller funds (under $200M) sometimes charge higher fees (2.25-2.5%) to cover fixed costs.

Carried interest is 20% of profits above the 8% hurdle. Carry is the upside the GP earns from successful investments. On a $1B fund that returns $2.5B, the gross profit is $1.5B. After clearing the 8% LP hurdle (roughly $400-500M in preferred return depending on timing), the remaining profit is split: 80% to LPs, 20% to GP. That 20% — potentially $200-250M on a strong fund — is the GP’s primary economic incentive. It’s why the GP cares so much about exit timing and value creation.

The 8% hurdle is the ‘preferred return’ to LPs. Before the GP earns any carry, LPs must receive their committed capital back plus 8% per year compounded. Only profits above this hurdle are subject to the 80/20 split. The hurdle is what protects LPs from paying carry on mediocre returns. Some funds have tiered hurdles (different splits at different return levels). Some funds have a ‘catch-up’ provision that lets the GP earn its full 20% on all profits once the hurdle is cleared.

Capital calls and distributions

LPs don’t fund the entire commitment upfront. When an LP commits $100M to a fund, that capital sits on the LP’s books but isn’t transferred to the fund immediately. The GP ‘calls’ capital as deals close: maybe $5M for the first deal in year 1, then $8M for the next deal six months later, and so on. By year 4 or 5, the full $100M is typically called. LPs need to maintain liquidity to meet capital calls on roughly 10 days’ notice.

Capital calls cover deal investments plus management fees. When the GP calls capital, they’re drawing down LP commitments to fund: the equity investment in a portfolio company, deal expenses (legal, advisory, diligence advisors), management fees, and fund operating expenses. Some LPs receive separate capital calls for management fees; some receive bundled calls for investments and fees together.

Distributions return capital and profits to LPs. When a portfolio company is exited (sold or IPO’d), the proceeds are distributed to LPs. The first distributions return committed capital. Once LPs have received 100% of capital plus the 8% hurdle, distributions become subject to the carry split (typically 80% LP / 20% GP after catch-up). LPs receive distributions in cash, and sometimes in stock if the exit was an IPO.

The capital call / distribution rhythm shapes LP behavior. LPs prioritize funds that distribute capital quickly (high DPI — Distributions to Paid-In capital). Slow-distributing funds with high paper IRRs but low realized returns get punished in subsequent fundraisings. This is why GPs push hard on exits during years 5-7: the realized return on a closed fund is what the next fund’s LPs underwrite. If your business is in year 4 of an LP’s fund, the GP is starting to think about exit — their next fundraise depends on it.

Fund life: investment period and harvest period

Fund life is 10 years — with possible 1-2 year extensions. The 10-year clock starts at the fund’s formation (or first close). The fund is required to wind down by year 10, distributing all remaining portfolio companies (often by selling them, sometimes by transferring to continuation vehicles, occasionally by distributing in-kind to LPs). Extensions of 1-2 years are common with LPAC consent.

Years 1-5: investment period. The GP can make new platform investments. Most platforms are made in years 1-4. Year 5 is the ‘tail’ of the investment period — some final platforms or aggressive add-ons. After year 5, no new platform investments can be made (without LPAC consent). The GP must ‘deploy’ the fund — meaning invest essentially all committed capital — before the investment period ends.

Years 6-10: harvest period. The GP focuses on portfolio company management and exits. New add-on acquisitions can still be made (these aren’t ‘new investments’ for fund definition purposes — they’re follow-ons within existing platforms). Most exits happen in years 5-9. Year 10 is the deadline for winding down.

What this means for the businesses the fund owns. Every business owned by a fund has an exit clock. A business bought in year 2 of a fund will likely be sold in year 6-8. A business bought in year 4 will likely be sold in year 7-9. If the fund is in year 5+ when you sell to it, expect a faster process — the GP needs to deploy quickly. If the fund is in year 1-2, you’ll be held longer. Fund vintage affects everything from deal pace to hold expectations.

GP commitment and alignment

GP commitment: 1-5% of fund size, invested alongside LPs. The GP commits its own capital to the fund — typically 1-5% of total fund size. On a $1B fund, that’s $10-50M. The GP commitment is funded by the partners and senior professionals personally. They invest at the same terms as LPs, with no preferential treatment. This is the most direct alignment of incentives in the PE structure.

GP commitment varies by firm. First-time funds often have 2-5% GP commitment to demonstrate commitment to LPs. Established firms with strong track records sometimes negotiate down to 1-2% (the partners are managing many funds simultaneously and capital is constrained). Sector-specialist funds often have higher GP commitment to show conviction in the strategy. Some firms have very large GP commitments (10%+) when they’re investing significant personal wealth.

GP commitment helps but doesn’t solve every conflict. The GP earns 2% management fees regardless of performance. Even if the fund returns 1x (no profit), the GP earns 10 years of 2% fees on $1B = $200M in fees. The carry structure aligns upside (GP only earns big when LPs earn big), but the management fee structure means the GP earns meaningful income even on mediocre funds. This is why LPs increasingly push for fee step-downs and lower fees on uninvested capital.

Why this matters for sellers. When you sell to a PE fund, the partners managing your business have personal capital invested alongside the LPs. They have direct financial incentive to see your business succeed during the hold. But they also have time-bound incentives: the carry only crystallizes on exit, and the fund’s 10-year life forces an exit. This is why PE buyers move fast post-close and push hard on growth — their personal returns depend on it.

Fund I, Fund II, Fund III: the fundraising progression

PE firms raise successive funds every 3-5 years. Once Fund I is roughly 70-80% deployed, the GP starts marketing Fund II. Once Fund II is mostly deployed, they market Fund III. Each fund is typically 1.5-3x the size of the previous fund — reflecting growth in track record and LP demand. A firm’s Fund I might be $200M; Fund II might be $500M; Fund III might be $1.5B.

Track record drives fundraising. LPs evaluate a GP’s track record from previous funds: realized returns (DPI), unrealized returns (TVPI — total value plus distributions), IRR, vintage-adjusted comparisons. Strong track records get oversubscribed in 3-6 months. Weak track records take 12-24 months to close, often at smaller sizes than targeted. LP capital is mobile — underperforming GPs lose access.

Why this matters for portfolio companies. When a GP is fundraising the next fund, they’re especially focused on showing realized returns from the current fund. This often translates to push for early exits in the current fund’s portfolio. If you sold to a GP whose current fund is in year 5-7, expect the exit conversation to intensify — a successful exit of your business adds to the track record they’re marketing for the next fund.

Fund families and platform building. Many established GPs run multiple fund families: a flagship buyout fund, a sector-specific fund, a smaller-deal fund, a continuation fund, a credit fund. Each fund has its own size and strategy. Sometimes a fund family will sell a portfolio company from one fund to another fund within the same firm (a ‘cross-fund’ sale), with LPAC approval. This often happens with continuation vehicles when the GP wants more time with a portfolio company.

How fund structure shapes PE behavior toward portfolio companies

The 10-year fund life forces exit timing. Every business owned by a fund will be sold within roughly 5-8 years. PE buyers don’t hold forever. They don’t want to hold forever. The structure prohibits it — the fund must wind down by year 10 (or 12 with extensions). This is why PE pushes for exit-readiness from day one: clean financials, professional management, scalable systems, defensible competitive position. They’re always preparing for the next sale.

The 8% hurdle forces aggressive value creation. To clear the hurdle, a fund needs to return committed capital plus 8% per year compounded. Over a 7-year hold on a typical platform, that’s 1.71x MOIC just to clear the hurdle. To earn meaningful carry, the GP needs 2.5-3x+ MOIC. The math forces growth: organic, M&A, operational improvement, multiple expansion. PE doesn’t buy businesses to coast on existing performance — the math doesn’t work.

The investment period clock pressures fast deployment. If the GP doesn’t deploy the fund by the end of the investment period, they have to give back uncommitted capital to LPs. This is a black mark on the GP’s record. So GPs push hard to deploy by year 4-5. If you’re selling to a fund late in its investment period, expect a faster process and possibly more flexibility on deal terms — they need to close before the clock runs out.

The carry structure aligns GP and seller (when seller rolls equity). If you roll equity into the new entity, your equity participates in the same exit that drives the GP’s carry. You and the GP both want a successful exit at the highest multiple. This is the structural reason rollover equity often produces strong returns — you’re aligned with sophisticated buyers who have personal capital, fund capital, and career incentives all pointing toward a great exit. The 5-7 year hold is short, focused, and outcome-driven.

Conclusion

PE fund structure isn’t a back-office topic. It’s the operating system that drives every decision a PE buyer makes about your business. The 10-year fund life forces exit timing. The 8% hurdle forces aggressive value creation. The carry structure aligns the GP’s personal upside with the LPs’ (and your rolled equity’s). The investment period clock pressures deal pace. The Fund I / Fund II / Fund III progression makes track record everything — meaning the GP cares deeply about your business succeeding because their next fund depends on it. Owners who understand these structural forces negotiate better deals, set realistic expectations for post-close, and use the GP’s incentives to their advantage. Owners who don’t understand the structure get surprised by behavior that, viewed from inside the fund, is entirely predictable. The best preparation for selling to PE isn’t learning what to say in management presentations — it’s understanding the economic engine on the other side of the table.

Frequently Asked Questions

What is a private equity fund structure?

A PE fund is a closed-end investment vehicle organized as a Limited Partnership with a 10-year life. Limited Partners (LPs) commit capital. The General Partner (GP) — the PE firm — manages the fund, makes investment decisions, and runs portfolio companies. The structure is governed by a Limited Partnership Agreement (LPA) that specifies fee structure, hurdle rates, fund life, and governance.

What is the 2-and-20 fee structure?

2% annual management fee on committed capital, paid by LPs to the GP to cover operating costs. Plus 20% carried interest on profits above an 8% LP hurdle. The management fee is recurring; carry is the upside. On a $1B fund returning $2.5B, the GP can earn $200-250M of carry on top of $200M+ of management fees over the fund’s life.

What is the 8% hurdle in PE?

The 8% hurdle (also called ‘preferred return’) is the minimum return LPs must receive before the GP earns carry. LPs get their committed capital back plus 8% per year compounded before any profits are split with the GP. Once the hurdle is cleared, profits typically split 80% LP / 20% GP (sometimes with a ‘catch-up’ provision that lets the GP earn full 20% on all profits).

How long does a PE fund last?

10 years standard, with possible 1-2 year extensions with LPAC consent. The first 5 years are the investment period (when the GP makes new platform investments). The next 5 years are the harvest period (when the GP exits portfolio companies and returns capital to LPs). The 10-year clock forces every portfolio company to be exited.

What is a capital call?

A capital call is when the GP draws down LP commitments to fund a specific need: a new investment, an add-on acquisition, management fees, or fund expenses. LPs typically have 10 days’ notice to wire the funds. LPs commit capital upfront but only fund commitments as needed — this is why the structure is called ‘closed-end commitment’ rather than upfront pooled.

What is GP commitment in PE?

GP commitment is the PE firm’s own capital invested alongside LPs in the fund. Typically 1-5% of fund size. On a $1B fund, that’s $10-50M of personal capital from the partners and senior professionals. The GP commitment aligns incentives with LPs but doesn’t eliminate every conflict (the management fee structure provides income regardless of performance).

What’s the difference between investment period and harvest period?

Investment period (years 1-5): the GP makes new platform investments. Harvest period (years 6-10): the GP exits portfolio companies and returns capital to LPs. New platform investments aren’t allowed in the harvest period, but add-on acquisitions to existing platforms can still happen. The transition affects management fee calculation in many funds (often steps down at year 6).

What is carried interest (carry)?

Carry is the GP’s share of profits above the LP hurdle — typically 20%. On a $1B fund returning $2.5B, the GP earns 20% of the $1B+ in profits above the hurdle. Carry is the GP’s primary incentive: it only crystallizes when LPs earn meaningful returns. Carry is taxed at long-term capital gains rates in the US (subject to ongoing political debate).

How does PE fund structure affect how they treat my business?

The 10-year fund life forces an exit in 5-8 years. The 8% hurdle forces aggressive value creation. The investment period clock pressures fast deployment. The carry structure aligns GP-and-rolled-equity-seller upside on exit. Together these forces drive PE behavior: fast post-close action, hard push on growth, professional governance, exit-ready posture from day one.

What’s a continuation vehicle?

A continuation vehicle (or ‘continuation fund’) is a new fund the GP raises to buy specific portfolio companies from an existing fund that’s reaching end-of-life. This lets the GP hold the company longer while returning capital to original LPs. Common for high-quality assets the GP doesn’t want to sell to a third party. Requires LPAC approval and often a separate group of LPs.

How do PE fund vintages work?

A fund’s vintage is the year it started investing (typically the first close). Vintage matters for performance benchmarking — LPs compare fund returns to other funds of the same vintage. Vintage also affects current fund stage: a 2020-vintage fund is in the late investment period in 2026; a 2018-vintage fund is in early harvest. Knowing a fund’s vintage tells you how much time is left on the clock.

Why does PE care so much about Fund I, Fund II, Fund III?

Each successive fund is bigger and depends on the previous fund’s performance. LPs underwrite future commitments based on realized returns from prior funds. A GP whose Fund I returns 3x will easily raise Fund II at 2-3x the size; a GP whose Fund I returns 1.5x may struggle to raise Fund II at all. This pressure means GPs care intensely about exit performance — including yours, if your business is one of their bets.

About the Author

Christoph Totter is the founder of CT Acquisitions, a buy-side deal origination firm headquartered in Sheridan, Wyoming. CT Acquisitions sources founder-led businesses for 75+ private equity firms, family offices, and search funds across the U.S. lower middle market ($1M–$25M EBITDA). Christoph writes about M&A from the perspective of someone on the phone with both sides of the deal table every week. Connect on LinkedIn · Get in touch