Signing a subscription agreement for a private fund does not move money anywhere. It creates a commitment — a promise to fund capital when the manager calls it, over the life of the investment period, typically three to five years. The gap between committing and actually being invested is where a surprising number of families get caught.
What a capital call actually is
When the manager identifies an opportunity, it issues a capital call: a notice, usually with ten business days' notice, requiring investors to wire their pro-rata share of the amount needed. Miss a call and the consequences are written into the limited partnership agreement, and they are rarely mild — dilution of the investor's interest, forfeiture of prior contributions, or removal from the fund entirely, depending on the terms.
Why "committed" is not "invested"
A $500,000 commitment to a fund does not mean $500,000 needs to sit in a checking account for ten years. It means that amount needs to be reachable — in liquid, low-volatility assets — for as long as the investment period runs, because the manager decides the timing, not the investor. A family that commits $500,000 and then invests that same $500,000 fully in equities elsewhere, assuming the fund money "isn't really needed yet," is running a real risk: a capital call arriving during a market decline forces a choice between selling depressed assets or defaulting on the commitment.
Pacing across multiple funds
Investors who commit to private funds regularly — rather than as a single allocation — manage this with a pacing model: staggering commitments across vintage years so that calls from newer funds are being met even as older funds begin returning distributions that can help fund them. This smooths the liquidity demand over time instead of concentrating it.
The practical rule
Treat an unfunded commitment as a liability that could be called at any time within the investment period, sized against liquid reserves, not against total net worth. The number on the subscription document is not what you have invested. It is the maximum the manager can ask you for, on their schedule, not yours.