Can You Help Us Build a Cash Reserve or Treasury Policy?

Most growing UK businesses spend considerable effort solving cash shortfalls — but relatively few have a deliberate, documented policy for managing cash when they have it. A cash reserve strategy and treasury policy answers the questions that matter when the business is in a strong liquidity position: how much cash should we hold as a minimum reserve? Where should surplus cash be held? What can it be used for, and what governance applies to that decision? A fractional Finance Director provides the expertise to build a policy that is both financially sound and practically workable for your specific business.

Why a Cash Reserve and Treasury Policy Matters

The absence of a defined cash policy creates two distinct risks. The first is holding too little cash — operating with insufficient liquidity buffer to absorb unexpected shocks, creating vulnerability that a single bad debt, delayed payment, or unexpected cost can turn into a genuine crisis. The second, less recognised risk is holding too much cash in the wrong place — money sitting in a low-interest current account when it could be earning a meaningful return in a business savings account or short-term deposit facility, or alternatively deployed into the business for growth.

A well-designed treasury policy resolves both problems. It defines the minimum cash position the business should maintain at all times, the treatment of cash above that threshold, the permitted instruments and counterparties for holding surplus cash, and the governance process for deploying reserves for strategic purposes.

Defining the Minimum Cash Reserve

The starting point for any cash reserve policy is determining what minimum cash balance the business should maintain at all times — its "floor." This is not an arbitrary number; it should be grounded in the business's specific risk profile.

How the Minimum Reserve Is Calculated

A fractional Finance Director will typically model the minimum cash reserve as a function of several factors:

• Fixed cost cover: How many months of fixed overheads (payroll, rent, debt service) the reserve should cover if revenue suddenly stopped. Two to three months is a common starting point for stable businesses; three to six months is appropriate for higher-risk or highly seasonal operations.
• Working capital cycle volatility: Businesses with unpredictable payment cycles — project-based businesses, businesses with a small number of large customers — need larger buffers to absorb timing differences.
• Known forthcoming liabilities: VAT quarters, corporation tax instalments, annual insurance premiums, and lease renewals should be explicitly reflected in the minimum reserve calculation.
• Facility headroom: Where the business has an overdraft or revolving credit facility, the minimum cash policy should consider the facility as a secondary buffer — but not as a substitute for primary cash reserves, as facilities can be withdrawn or restricted at short notice.

"The right minimum cash reserve is the amount that allows the business to absorb its most likely adverse scenario without material operational disruption — and to do so without touching external facilities."

Managing Surplus Cash Above the Reserve Floor

Once the minimum reserve is defined, the policy addresses what to do with cash above that floor. For many profitable, cash-generative businesses, this is a genuinely significant financial question. Leaving large cash balances idle in a standard current account in a period of positive interest rates represents a meaningful opportunity cost.

Short-Term Surplus Cash Management

For cash that is surplus to the immediate reserve requirement but may be needed within three to twelve months — for planned capital expenditure, a potential acquisition, or a tax payment — a fractional FD will identify appropriate short-term deposit options. Business instant-access savings accounts, notice accounts, and short-term fixed-term deposits are the standard instruments. The policy will define which counterparties (banks) are acceptable, the maximum deposit with any single institution, and the required liquidity profile.

Longer-Term Capital Allocation

Cash that the business does not expect to need for operational purposes within 12 months presents a capital allocation question: should it be retained in the business for strategic investment, returned to shareholders as a dividend, used to reduce debt, or held in longer-term instruments? This decision sits at the intersection of treasury policy and corporate strategy, and a fractional FD will work with the board to frame it clearly. The right answer depends on the business's growth plans, tax position, shareholder requirements, and risk appetite.

Governance and Controls Within the Treasury Policy

A treasury policy is only as good as the governance that surrounds it. A fractional Finance Director will ensure the policy includes clear controls over:

• Authorisation levels: Who can approve transfers above defined thresholds, open new accounts, or invest in new instruments.
• Counterparty limits: Maximum exposure to any single bank or financial institution, with reference to credit ratings and FSCS deposit protection thresholds.
• Reporting obligations: How often the treasury position is reported to the board, and what information is included.
• Policy review frequency: At minimum annually, and whenever the business's financial profile changes materially.

Connecting Treasury Policy to Cash Flow Management

The cash reserve and treasury policy does not operate in isolation. It connects directly to the rolling cash flow forecast, which tracks the business's cash position against the reserve floor on a weekly basis. It connects to the early warning systems that escalate management attention if the reserve approaches its minimum threshold. And it connects to the broader working capital management framework — if the minimum reserve is being eroded repeatedly, that is a signal that the underlying cash flow position needs to be addressed rather than the reserve policy relaxed.

For businesses managing seasonal cash flow, the treasury policy should also address how the reserve floor varies through the seasonal cycle — acknowledging that the appropriate minimum in peak months is different from trough months, and planning accordingly. Explore how a fractional Finance Director can help your business build the financial infrastructure for long-term stability and confident decision-making.