How Many Months of Expenses Should a Charity Hold
A nonprofit holding large reserves is criticised for hoarding and one holding none cannot survive a funding gap. The right level depends on the volatility of the revenue, and almost nobody calculates it that way.
The Question and Why It Is Awkward
A nonprofit exists to spend money on its mission. Holding cash rather than spending it looks like failing to do the job, and donors say so.
A nonprofit with no cash cannot survive a delayed grant payment, a lost contract, or a fundraising shortfall, and organisations fail from liquidity rather than from mission failure.
Operating reserves are unrestricted funds set aside to cover operating expenses during a disruption, and the sector norm frequently quoted is three to six months of expenses.
That figure is a convention rather than an analysis, and applying it uniformly is the problem.
What the Right Level Actually Depends On
Reserves are insurance against revenue interruption, so the appropriate amount depends on how interruptible the revenue is.
| Revenue Profile | Reserve Need |
|---|---|
| Multi year government contracts, reimbursed in arrears | High, cash flow gaps are structural |
| Diversified individual donors, recurring | Lower, revenue is stable |
| One large foundation grant | Very high, concentration risk |
| Earned revenue from fees | Depends on demand stability |
The first row is the one most organisations underestimate. Government contracts frequently reimburse after expenses are incurred, sometimes months later, which means the organisation is financing the government. That requires working capital regardless of any crisis.
The third row is the one that kills organisations. A nonprofit deriving most of its funding from a single source has a concentration exposure that no amount of programme quality mitigates.
Reserves are not savings. They are the working capital required to deliver services whose funding arrives after the costs, plus a buffer against a source disappearing. Framing them as money not spent on mission misdescribes what they are for.
Why They Get Under Funded
The pressures all run one direction.
Funders resist paying for them. Grants fund programme costs and frequently cap or exclude indirect costs, and almost none permit a surplus. An organisation that consistently breaks even by design accumulates nothing.
Rating and evaluation pressure. Charity evaluators historically emphasised the ratio of programme spending to total expenses, which penalises administrative capacity and reserve accumulation. Several have since revised their methodologies, and the expectation persists among donors.
Board reluctance. A board asked to approve a surplus while the organisation turns people away faces a genuinely uncomfortable decision.
The result is a sector where a substantial share of organisations hold under three months of expenses, which was demonstrated broadly when funding disrupted in 2020 and a great many faced immediate insolvency risk.
The Restricted Funds Complication
An organisation can hold substantial assets and still be unable to pay salaries, because much of what it holds may be restricted.
Nonprofit accounting classifies net assets as with donor restrictions or without. Restricted funds can only be used for the purpose the donor specified, and endowment funds may be restricted in perpetuity with only the income available.
A reserve calculation must therefore use unrestricted, liquid net assets rather than total net assets, which is frequently a much smaller number than the balance sheet suggests.
The clearest way to see this is the months of liquid unrestricted net assets measure, which strips out restricted funds, illiquid assets, and property, and answers the question that actually matters.
The Policy Itself
Organisations that manage this well have a written reserve policy addressing several things.
The target, expressed in months of operating expenses, derived from the revenue profile rather than from a sector convention.
The triggers for drawing on reserves, which prevent them being consumed gradually for ordinary purposes.
The replenishment plan, specifying how the reserve is rebuilt after a draw, which is the part most policies omit.
And where the reserve is held, since it must be liquid enough to access quickly and is frequently invested too aggressively for its purpose.
What Changed
The funding disruption of 2020 shifted attitudes measurably. Several large foundations relaxed restrictions, converted project grants to general operating support, and accelerated payments, on the recognition that organisations without flexible funding could not respond.
The general operating support argument, that funders should pay for the organisation rather than only for the programme, has gained ground since, though restricted project funding remains dominant.
The Bottom Line
Operating reserves are working capital for organisations whose revenue arrives late and unpredictably, and the appropriate level depends on revenue concentration and payment timing rather than on a sector rule of thumb. They are chronically under funded because funders will not pay for them and boards find surpluses uncomfortable to justify. The measure that matters is months of liquid unrestricted net assets, which is frequently far smaller than the balance sheet implies and is the number that determines whether an organisation survives a delayed payment.