How Capital Calls Work: What LPs Need to Know About Fund Drawdowns

When an LP commits $5 million to a venture capital fund, they don't wire $5 million the day the fund closes. Instead, they make a commitment — a legally binding promise to provide capital when the fund needs it. The actual transfer of money happens through a series of capital calls over the life of the fund.

This system — called the committed capital model — is one of the defining features of private funds. Understanding how it works matters for LPs trying to manage their liquidity, for GPs managing fund operations, and for anyone trying to understand how money actually flows through the VC ecosystem.

What a Capital Call Is

A capital call (sometimes called a drawdown) is a formal notice from a fund's general partner to its limited partners, requesting that they wire a specified amount of money to the fund by a certain date.

The mechanics are straightforward. The fund's LP agreement specifies that LPs have committed a certain dollar amount. As the fund makes investments (or incurs management fees and fund expenses), the GP calculates how much capital is needed and sends a capital call notice to each LP proportionally.

For example: An LP commits $5 million to a $100 million fund. They represent 5% of the fund. When the GP calls $10 million across the fund to fund a new investment, that LP receives a notice for $500,000 (5% × $10M) and is required to wire it within the notice period.

The Capital Call Notice

Capital call notices are formal legal documents. They typically include:

• Amount being called: The specific dollar amount the LP owes
• Purpose of the call: What the capital is being used for (investment, management fees, fund expenses, recycling)
• Wire instructions: Where to send the money
• Due date: When the wire must arrive
• Cumulative summary: Total capital called to date and remaining uncalled commitment

The notice period — time between when the notice is sent and when funds are due — is defined in the LP agreement. Most VC funds use 10–14 business days. Some funds have shorter windows (5–7 business days) for time-sensitive investments.

LPs need to have processes in place to receive these notices, route them to the right person, get approval (for institutional LPs), and wire funds on time. Missing a capital call is a serious matter.

What Capital Calls Are Used For

Capital calls don't only fund investments. A fund may call capital for several purposes:

Investments. When the fund makes a new investment or a follow-on, it calls capital from LPs. The timing is often closely matched to the investment — GPs don't like holding large cash balances because they earn no return on uninvested cash.

Management fees. Most VC funds charge a management fee (typically 2% of committed capital per year during the investment period) that covers the GP's operating costs. This fee is often called from LPs quarterly, creating regular small capital calls even when no investments are being made.

Fund expenses. Legal costs, audit fees, insurance, and other fund-level expenses are often funded by capital calls.

Recycling. When a fund receives proceeds from an early investment (a partial sale, for example), some LP agreements allow the GP to "recycle" those proceeds — essentially re-investing them rather than distributing them to LPs. Recycled capital reduces the amount that needs to be called from LPs.

How GPs Decide When to Call Capital