2 min read
Why a buffer is an operational asset, not idle cash
Many directors treat retained cash as a sign of underdeployment — money that should be working harder. This framing misses the operational value of a buffer: it is what allows the business to absorb a late payment from a major customer without immediately restructuring supplier terms, to keep a key employee on payroll during a quiet period, or to respond to an opportunity without arranging emergency finance.
The value of a buffer is most visible during the moments it prevents — the scramble, the penalty, the lost contract because a deposit could not be placed in time.
Calculating the right buffer for your business
The standard approach is to identify monthly fixed costs — rent, payroll, insurance, software, debt service — and hold two to three months of that figure in accessible cash or an equivalent facility. Businesses with concentrated revenue (one or two customers representing more than 40% of turnover) or with long contract gaps should target the higher end or beyond.
- List all fixed costs that continue regardless of revenue — these are the buffer's target
- Exclude variable costs that scale down with revenue naturally
- Include debt service obligations, which are typically fixed regardless of trading
- Review the buffer target annually as the business grows and cost structure changes
Building the buffer systematically rather than hoping for it
A buffer rarely accumulates spontaneously. Directors who intend to build reserves typically need to treat the transfer to a reserve account as a fixed monthly commitment — like rent — rather than a discretionary allocation from whatever is left at month end. Setting a percentage of revenue or a fixed monthly amount and automating the transfer is more reliable than relying on discipline alone.
Some businesses use a pre-agreed revolving facility as a partial substitute: the facility provides the buffer capacity without requiring cash to be held idle. The cost is the facility fee; the benefit is that the cash remains deployed in the business until actually needed.
Using a revolving facility to maintain buffer access
A revolving credit facility agreed in advance gives a limited company immediate access to funds without the delay of a fresh application at the point of need. The psychological and practical value of knowing the facility exists changes how directors make decisions under pressure — they are less likely to accept unfavourable terms from a supplier or delay a hire because of a transient cash position.
All facility structures and cost references here are illustrative and do not constitute an offer or rate quote from Credicorp.
Frequently asked questions
Is it better to hold a cash buffer in a savings account or use a facility?
Both approaches are valid and can coexist. A savings account earns interest but requires accumulation time. A pre-agreed revolving facility provides immediate access but has an ongoing cost. Many well-run businesses maintain a smaller liquid reserve and supplement it with a facility for larger or unexpected needs.
How does a cash buffer affect our ability to borrow?
A demonstrable cash reserve generally improves the lending assessment: it signals financial discipline and reduces the perceived urgency that can make emergency lending requests more complex. Lenders view reserves as evidence of management quality.
Funding for UK limited companies
Credicorp lends to your company, not to you personally — short-term working capital with no personal guarantee. See what your business could access.