TL;DR: A capital call is a legal demand — not a suggestion. According to Preqin's 2025 Global Private Equity Report, global private capital dry powder stood at $3.7 trillion entering 2026. Every dollar of that figure is money LPs have legally committed to send on demand. Miss the wire deadline and a well-drafted LPA can force the sale of your entire interest at a 50% discount. This article explains how capital calls work, what default actually looks like, and the five things you need to verify in your LPA before you sign.
What a capital call actually is
When you invest in a private equity fund, you do not wire the full amount on day one. You sign a limited partnership agreement (LPA) and commit a dollar figure (say $2 million) to a fund with a total target size of $50 million. That $2 million is your committed capital. It is a legally binding promise.
The money you have actually transferred is your contributed capital, also called paid-in or drawn-down capital. On day one it is zero. Over the fund's life the general partner (GP) sends capital call notices, also called drawdown notices, requesting portions of your commitment as needed to fund acquisitions, pay management fees, and cover fund expenses.
The gap between what you promised and what you have wired is your unfunded commitment. For a $2 million commitment with $800,000 already contributed, your unfunded balance is $1.2 million, and it remains callable until the fund's investment period closes.
Why capital calls exist at all
A PE fund typically spans 10 to 15 years. The investment period (when the fund actively buys companies) runs the first four to six years. Calling all committed capital on day one would leave tens of millions sitting idle in a fund account earning nothing while the GP hunts for deals. IRR tanks. LPs are unhappy.
Instead, GPs call capital just-in-time: they identify a deal, negotiate terms, and issue a drawdown notice with enough lead time for LPs to wire funds before closing. That lag is built into the LPA as the notice period: typically 10 to 14 business days in standard agreements, per the Morgan Lewis Venture Capital and Private Equity Funds Deskbook. Some institutional LPs negotiate longer windows, sometimes 45 to 60 days for calls above a defined threshold. A handful of older agreements allow as few as 10 calendar days.
The notice period matters for practical reasons. LPs often keep unfunded commitments in short-term instruments. They need time to liquidate. If 10 days is not enough, the deal can collapse because the GP cannot wire closing funds on time.
How a capital call works: the mechanics
Capital calls are almost always pro-rata. If the fund has $50 million in committed capital and the GP needs $5 million for an acquisition, every LP is asked for 10% of their individual commitment. Your $2 million commitment means a $200,000 wire due within the notice period.
The capital call notice specifies:
- The total amount being called across all LPs
- Your pro-rata share in both dollars and percentage
- Wire instructions, bank account, and a unique reference code
- The funding due date
- The intended use of proceeds (acquisition, management fees, reserves)
Most funds today issue notices through digital investor portals. The portal timestamp is the notice date for calculating your deadline, not the date you open the email.
Calls are not restricted to new deals. Management fees are often bundled into regular capital calls. Reserve contributions for follow-on investments get called during the harvest period, after the investment period technically closes. Your unfunded commitment does not reach zero the day new-deal buying stops.
Subscription credit lines and what they do to your IRR
Over the past decade, PE funds have increasingly used subscription credit facilities (short-term revolving lines secured against LP commitments) to fund closings before calling LP capital. The mechanics: the GP draws on the line, closes the deal, then issues the capital call to LPs a few weeks or months later. LPs repay the line.
This creates a structural IRR inflation problem. IRR is calculated from the date capital is actually drawn from LPs, not the date of investment. If the fund closes a deal in January using the credit line but does not call LP capital until March, two months of deal performance are excluded from the IRR clock. The investment ages; the LP's cost basis does not. IRR looks better than it is.
The Institutional Limited Partners Association (ILPA) addressed this directly in its subscription line guidance, recommending that GPs provide dual IRR reporting: one figure with the facility's impact and one without. This lets LPs compare funds on a level basis. When evaluating a fund, ask for both figures. If a GP refuses, that refusal is informative.
Default: what happens when you cannot fund
LPs rarely default on capital calls. Reputational consequences alone are enough to keep most investors funding on time. But defaults happen: liquidity crunches, portfolio rebalancing pressures, the denominator effect when public markets drop sharply and PE allocations balloon as a percentage of total assets.
When an LP misses a wire deadline, the LPA's cure period kicks in. Mayer Brown's 2024 analysis of LPA default remedies describes typical cure periods as 10 to 20 days after the original payment deadline. Fund during the cure window and most GPs treat the situation as late payment. Default interest starts accruing from day one regardless.
That interest rate is punishing. Mayer Brown's analysis describes market-standard default rates as significantly in excess of the prime rate, running 12 to 18 percentage points above the prevailing rate. With prime above 7% through much of 2024 and 2025, effective default rates exceeded 20% annually on the unpaid amount.
If the cure period expires without payment, the GP's remedy menu expands significantly. Per Dentons' analysis of LP default consequences, standard LPA remedies include:
- Forced sale of LP interest: The GP can compel sale of the defaulting LP's stake to non-defaulting investors or a third-party buyer at a 50% or greater discount to fair value. The defaulting LP bears transaction costs.
- Capital account reduction (cram-down): The GP or non-defaulting LPs fund the shortfall and receive a disproportionate ownership increase, a built-in penalty that far exceeds a dollar-for-dollar adjustment.
- Overcall on non-defaulting LPs: The GP can issue a supplemental call to cover the shortfall, typically capped at 50% of the original call amount. One LP's default can hit the rest of the investor base.
- Suspension of rights: Voting rights stripped. Distributions withheld and applied to the outstanding balance. Access to fund reports restricted.
- Legal action: Courts treat LPAs as binding contracts. A judgment covers the full unpaid call, accrued interest, and legal fees. The fund can then pursue bank levies and asset liens.
The systemic risk extends beyond the defaulting LP. Subscription line agreements often contain cross-default provisions: one LP's failure to fund can constitute a default under the fund's credit facility, forcing a lender to call capital directly from remaining LPs. A single large default can stress the fund's liquidity, its banking relationships, and its ability to close pending acquisitions.
Five things to verify in your LPA before you commit
Capital calls are a structural feature of private equity, not a risk you negotiate away. But you can verify the specific terms before you sign. Read these five provisions carefully.
1. Notice period. How many days between call notice and funding deadline? Is it calendar days or business days? Ten calendar days and 10 business days are very different in practice. Know your exact window before you plan your liquidity.
2. Cure period and default interest formula. How many days do you have after the original deadline before you are formally in default? What interest rate applies from day one of missed payment? Verify the exact formula: prime plus X percentage points, not a fixed percentage.
3. Forced sale and cram-down provisions. Can the GP sell your interest at a 50% discount without court involvement? Some agreements allow a 100% capital account reduction. These clauses are enforceable. Ask fund counsel to walk through the remedy waterfall before you sign.
4. Cross-default language. Some LPAs trigger default across multiple funds managed by the same GP if you default in one. A single missed wire can cascade across your entire program with that manager. This is rare but worth confirming.
5. Reserve provisions and post-investment-period calls. The investment period ending does not end your callable obligation. GPs typically retain 5 to 15% of your commitment for follow-on investments, fund expenses, and reserves long into the harvest phase. Model your unfunded commitment to zero, not to the close of the investment period.
Practical liquidity management for LP investors
Experienced LP investors treat unfunded commitments as contingent liabilities on their balance sheet. They hold reserves in short-term, highly liquid instruments: Treasury bills, money market funds. Hold reserves sized to cover expected capital calls across all fund commitments for the next 12 to 18 months.
Many family offices and endowments receive overlapping calls from multiple funds in the same week. The denominator effect made this worse during the 2022 public market selloff: portfolios dropped, PE allocations spiked as a percentage of total assets, and capital calls arrived on schedule regardless of external conditions.
The discipline required is straightforward: maintain a capital call calendar tracking expected drawdown dates and reserve percentages against each fund commitment. Most modern fund portals provide pipeline visibility. Use it. A GP who gives informal advance notice before the formal call is a GP worth working with.
The PGC perspective
At Patriot Growth Capital, capital deployment is deliberate. We run a lower-middle-market model: acquire, mentor, build operational value, hold for a defined period. Capital calls in our fund structure are tied to verified acquisition opportunities, not speculative deal flow. LPs receive pipeline visibility before formal notices go out.
The mechanics described in this article are standard across the asset class. What varies is how GPs manage communication, lead time, and LP relationships when the capital call process inevitably creates friction. The best GPs view LP liquidity management as a partnership responsibility. The worst treat notice periods as a formality and cure periods as leverage.
Know which type of GP you are evaluating before you sign the LPA. The commitment is binding from the moment you do.
Frequently Asked Questions
What is a capital call in private equity?
A capital call is a formal request from a fund's general partner (GP) to its limited partner (LP) investors to transfer a specified portion of their legally committed capital. LPs do not fund their full commitment upfront. The GP draws down capital as needed to fund acquisitions, pay management fees, and cover fund expenses over the investment period.
What happens if an LP defaults on a capital call?
Default triggers remedies spelled out in the limited partnership agreement. After a cure period (typically 10 to 20 days) the GP can force the sale of the defaulting LP's fund interest at a 50% or greater discount, reduce the LP's capital account, suspend voting rights, withhold distributions, and pursue legal action for the full unpaid amount plus default interest that commonly exceeds 20% annually.
How much notice do LPs typically receive before a capital call is due?
Standard LPAs provide 10 to 14 business days from the notice date to the funding deadline. Some institutional LPs negotiate longer windows, sometimes 45 to 60 days for large calls. Older agreements may allow as few as 10 calendar days. The notice period is defined in the LPA, and the clock starts from the portal timestamp, not when the LP opens the email.
How do subscription credit lines affect capital call timing?
Subscription credit facilities allow GPs to fund acquisitions immediately using a bank line, then call LP capital weeks or months later to repay the line. This defers LP cash outflows but artificially inflates the fund's IRR because the IRR clock starts when LPs fund, not when the investment is made. The Institutional Limited Partners Association recommends requesting dual IRR reporting: one figure with and one without the subscription line impact, letting you compare funds accurately.
