How Much Liquidity Should a Family Office Keep?

A family office should set liquidity based on its obligations, investment plans, and the time it may take to access less liquid assets. There is no single amount that works for every family. The right reserve depends on how the family spends, how its businesses operate, what it has committed to invest, and how quickly it can raise cash if needs change.

Map Cash Needs and Commitments

Start by listing expected family expenses, operating business needs, debt payments, and investment commitments. Include anticipated calls on capital and any costs tied to property or private holdings. Consider how much cash may be needed during a period when income falls or an asset cannot be sold promptly.

Separate funds needed for near-term obligations from capital intended for long-term investment. This makes it easier to see whether the family can meet its needs without relying on a rushed sale or new borrowing. Legal and tax details vary by structure and situation, so discuss those questions with your attorney or CPA.

Account for Illiquid Assets and Concentration

Private businesses, real estate, and other direct holdings can take time to sell or refinance. Their value on a report does not mean the family can turn them into cash quickly. Review the full portfolio for concentration and liquidity risk, including commitments made through funds or other investment vehicles.

A family that invests heavily in familiar industries may be comfortable with concentrated holdings, but it still needs a plan for cash needs and unexpected events. The investment mandate can state priorities for liquidity, risk, income, and preservation, then guide how new opportunities are evaluated. Read how to write an investment policy statement and how families allocate across asset classes for related planning.

Keep the Plan Under Review

Liquidity needs can change when the family's spending, business operations, or investment plans change. Review the cash forecast and upcoming commitments regularly, and make sure the investment team and family understand the assumptions. The objective is to maintain enough access to capital for the family's needs while still giving long-term investments time to work.

Set a process for reviewing liquidity alongside asset allocation and performance. Avoid relying on one snapshot of the portfolio, since a marketable asset and an illiquid holding have different roles. The family's policy should explain who monitors cash needs and who can approve a change in the plan. For a broader look at the structures families use, see family office portfolio models. Families evaluating direct holdings may also find the case for direct investing useful.

An ideal portfolio construction plan is something we always work toward at the macro basis, and it is one of the key functions of the family office to look at concentration risk, liquidity risk, etc., but it is quite dynamic and something we like to keep on top of.

Sources: How to Start a Family Office, The Single Family Office. Informational only, not financial, legal or tax advice.