Getting the Balance Right Between Endowment and Operating Reserves

Most nonprofit leaders know they need both an endowment and an operating reserve. Fewer have a clear sense of where one ends and the other begins — or how to keep both healthy when times get tough. That distinction matters more than ever right now. Federal funding cuts, rising program costs, and a volatile giving environment have pushed many organizations to draw from reserves they haven’t touched in years. Some are looking at their endowments and asking a question that used to feel unthinkable: Can we access that?

The answer is complicated. And the stakes — for your mission, your donors, and your long-term financial sustainability — are likely high. Here’s what you need to understand before you make any decisions.

Two pools, two very different purposes

Think of your operating reserve as funding for short-term needs and your endowment as a sustainable long-term pool of capital from which you can make annual draws. Both are essential. But they work differently, they carry different restrictions, and they shouldn’t be treated as interchangeable.

Operating reserves are generally unrestricted funds your board sets aside to protect the organization against short-term disruption — a sudden drop in donations, an unexpected expense, a leadership transition, or a cash flow gap between grant cycles. Because these funds are controlled by management and the board, your leadership can authorize spending them relatively quickly without triggering legal restrictions or violating donor intent.

Endowments, by contrast, are usually built from donor contributions that may or may not be permanently restricted by the terms of the gift. The principal (or corpus) is typically meant to remain intact in perpetuity, generating investment income and capital appreciation — “total return” — that supports your programs over time.

Why you first need an operating reserve

Before your organization shifts resources toward long-term endowment building, you need a solid operating reserve in place. Most experienced professionals recommend maintaining enough unrestricted reserves to cover three to six months of essential operating expenses — though some guidance puts the target higher, at nine to 12 months, depending on the complexity and risk profile of your operations.1

What constitutes the “right” amount for your organization depends on factors unique to your situation: How steady is your revenue? How quickly could you cut costs if needed? Do you rely heavily on a single funder or grant? The more concentrated your funding sources, the larger the cushion you likely need.

One principle applies broadly: Operating reserves should be held in fully liquid accounts — U.S. Treasury ladders, money market instruments, or both — and they should be kept completely separate from long-term investment pools. That separation isn’t just good practice; it helps prevent you from the temptation to tap into long-term assets when short-term needs arise.

Many small to midsized nonprofits operate with less than three months of operating reserves on hand. One of the most effective methods for building reserves is to budget for operating surpluses annually. Only when that liquid cushion is in place should fundraising attention turn toward an endowment campaign.

What makes an endowment different — and harder to access

An endowment is not a reserve fund with a fancier name. It’s a fundamentally different financial vehicle. Treating it like a reserve is likely one of the costliest mistakes a nonprofit can make.

Endowment assets are subject to state law — most states have adopted the Uniform Prudent Management of Institutional Funds Act (UPMIFA), which governs how endowment funds can be invested, managed, and spent. Any spending that exceeds a defensible level may be viewed as imprudent under UPMIFA.² Most institutions set their formal endowment spending policy at 4% to 5% of a rolling three-year average of the endowment’s market value.³

What that means in practice: For example, a $1 million endowment generating a 5% annual distribution yields just $50,000 per year for operations. That’s meaningful support — but it won’t cover a $300,000 budget shortfall. Trying to pull significantly more than your spending policy allows can have lasting consequences on the endowment’s value and on donor trust.

Withdrawing from endowment principal — especially from truly restricted (donor-restricted) funds — is either prohibited outright or requires a formal process that may involve board action, legal review, or even donor consent. Smaller organizations may have board-designated quasi-endowments, where the board itself imposed withdrawal restrictions. Any release of principal requires explicit board action and should be carefully documented.

Interestingly, only 51% of college and university endowments in a 2008 NACUBO study were truly restricted. The other 49% may judiciously consider using their endowments for “rainy day” withdrawals when necessary. Some experts believe rainy day withdrawals provide greater stability to organizations providing critical services to our youth and the sick.⁴

The pressure point: When organizations start blending the two

Recent data reveals that while most endowed institutions adhere to their spending policies, a meaningful minority — about 15% in 2025 — are exceeding those limits, primarily because of federal funding cuts and operating pressures.⁵ Among foundations specifically, more than a quarter exceeded their spending policy in 2025, and nearly a third anticipated doing so in 2026.⁵

This isn’t necessarily a crisis, but it is a warning signal. In fiscal year 2025, U.S. colleges and universities withdrew $33.4 billion from their endowments, an 11% increase over the prior year and a rise of more than 17% over two years.⁶ Endowments funded an average of 15.2% of participating institutions’ annual operating budgets in fiscal year 2025, up from 10.9% two years earlier.⁷

Organizations that blur the line between endowment and operating reserves often do so under pressure, without a formal endowment spending policy in place, and without a clear plan for replenishment. When spending decisions are driven by what’s available rather than what’s appropriate, organizations risk eroding the very asset base designed to sustain them through the next disruption. The organizations that tend to fare best have one thing in common: Their board adopted a formal spending policy before the pressure arrived — and hold to it when things get hard.

The board-designated reserve: A middle ground worth knowing

Between a true endowment and a liquid operating reserve, there’s a third option that many organizations underuse: the board-designated reserve, sometimes called a quasi-endowment.

A board-designated reserve is created by the board from unrestricted funds, not by a donor gift. Because the board established it, the board can also modify or dissolve it with appropriate documentation and deliberation. This can give the organization considerably more flexibility than a true endowment, while still creating internal discipline around how those funds are treated.

Board-designated reserves can serve several purposes: a strategic opportunity fund for piloting new programs, a facilities reserve for capital repairs, or an investment reserve where the goal is to grow the principal over time while spending only the earnings. That last type functions much like an endowment in practice but without the legal restrictions that make donor-restricted endowments harder to modify.

For organizations that want to build long-term financial strength without giving up control, a board-designated reserve is often a smarter first step than soliciting restricted endowment gifts before the infrastructure to manage them is in place.

Getting the balance right

Managing the relationship between endowment and operating reserves isn’t a one-time decision — it’s an ongoing discipline. A few principles can help:

• Build the operating reserve first. Don’t redirect fundraising attention to an endowment campaign until you have at least three to six months of operating expenses set aside in a liquid, unrestricted account. That cushion is the prerequisite, not the afterthought.
• Adopt a formal endowment spending policy. A written policy — reviewed and approved by your full board — establishes how much you can draw from invested funds each year, defines the calculation methodology, and can protect your organization from reactive spending decisions made under pressure. Without an endowment spending policy, each budget cycle becomes a negotiation. With it, the parameters are clear before the stress arrives.
• Treat each pool as if it has a different job. Operating reserves are for flexibility and near-term protection. Endowments are for permanence and long-term income generation. Investment strategies, liquidity requirements, and governance rules should reflect those different purposes — not blend them together.
• Plan before you draw. If you know you’ll need to access endowment distributions or make an unusual withdrawal, communicate early with your wealth advisor. Giving advance notice allows for thoughtful planning around market conditions, asset allocation, and timing rather than a forced sale at an inopportune moment.
• Resist the impulse to reach for the endowment as a first resort. The sequence matters: Operating reserves exist precisely so you don’t have to touch the endowment during routine shortfalls. If your operating reserve has been depleted, rebuilding it should take priority over expanding the endowment.

A moment of renewed urgency

The financial pressure facing nonprofits and foundations today, such as reduced federal support, evolving donor behavior, and economic uncertainty, can make the discipline of reserve management both more difficult and more important.

Organizations that have maintained a healthy operating reserve are better positioned to absorb short-term disruption without compromising long-term strategy. Those with a formal endowment spending policy are better equipped to make thoughtful decisions even when the budget is under strain. And those with clear governance around both pools are better able to reassure donors, boards, and stakeholders that they’re managing assets responsibly.

The goal isn’t to lock money away indefinitely or to hoard capital that could serve your mission. It’s to structure your financial resources in a way that keeps today’s programs running without mortgaging tomorrow’s capacity to do good.

FAQs

What is the difference between an endowment and an operating reserve?

An operating reserve is unrestricted, liquid cash your board sets aside to cover short-term disruptions like a drop in donations or a cash flow gap. An endowment is built from donor-restricted gifts whose principal is meant to remain intact indefinitely, generating investment income to support your programs over time. The key distinction is access: your board can authorize spending from an operating reserve quickly, while endowment principal is governed by legal restrictions and state law.

What is an endowment spending policy and how is it calculated?

An endowment spending policy is a written rule your board adopts that defines how much you can draw from invested funds each year. Most institutions set their endowment spending policy at 4% to 5% of a rolling average of the endowment’s market value, typically calculated over a three-year or 12-quarter period to smooth out market volatility. The endowment spending policy establishes the calculation methodology, protects against reactive spending decisions, and creates clear parameters before budget pressure arrives.

Should my nonprofit draw from its endowment to cover a budget shortfall?

Drawing from your endowment should be a last resort, not a first response. Operating reserves exist precisely so you don’t have to touch the endowment during routine shortfalls. If you do need to access endowment distributions beyond your spending policy, communicate early with your wealth advisor, document the board’s reasoning, and have a clear plan for replenishment. Spending significantly above your policy can have lasting consequences on the endowment’s value and on donor trust.

Do I need a formal operating reserve policy before building an endowment?

Yes. Most experienced professionals recommend building a liquid operating reserve covering three to six months of essential expenses before redirecting fundraising attention toward an endowment campaign. A formal reserve policy defines your target level, the conditions for use, the approval process, and how the reserve may be replenished. That cushion is the prerequisite for long-term endowment building, not an afterthought.

What’s the difference between a true endowment and a board-designated quasi-endowment?

A true endowment is created by a donor gift with permanent restrictions that the organization cannot change without legal process or donor consent. A board-designated quasi-endowment is created by the board from unrestricted funds, so the board can modify or dissolve it with appropriate documentation and deliberation. The quasi-endowment offers more flexibility while still creating internal discipline, making it a practical first step for organizations building long-term financial strength.

Which is better for short-term financial stability: An operating reserve or an endowment?

An operating reserve is better suited for short-term stability because it’s unrestricted, fully liquid, and can be accessed quickly by your board without legal restrictions. An endowment is designed for long-term income generation, with principal that’s meant to stay intact indefinitely. Using endowment assets for routine shortfalls risks eroding the asset base designed to sustain your organization through future disruptions. The two pools serve different purposes and shouldn’t be treated as interchangeable.