What it means
A business is a system of cash flows: money comes in from customers, investors and lenders, and goes out to suppliers, employees, tax authorities, lenders and owners. The flows are never perfectly matched, and cash flow management is the work of keeping the balance sufficient at every moment without leaving more idle than necessary.
The foundation is visibility. A business cannot manage what it does not see, so the first task is an accurate picture of the current cash position (reconciled daily or weekly) and a forecast of where it is going (13 weeks in weekly detail, 12 to 18 months in monthly detail).
The forecast identifies the low points and the surpluses, and everything else follows from acting on them in time. The levers fall into groups.
On receipts: prompt and accurate invoicing, credit checking, terms that suit the business, deposits and stage payments, systematic collection, incentives for early payment where the arithmetic justifies them, and receivables finance where acceleration is worth its cost. On payments: paying on the due date rather than early, negotiating terms that match the business's cycle, scheduling payment runs, capturing supplier discounts that are worth taking, and timing tax and capital payments with the forecast in view.
On inventory: buying to demand, avoiding stock that ties up cash, and clearing what does not move. On treasury: consolidating bank accounts, sweeping balances, placing surplus cash on deposit, maintaining committed facilities with headroom, managing currency exposure, and keeping a reserve that is separate from operating cash.
On commitments: approving large cash outflows (capital expenditure, acquisitions, dividends) only against the forecast. Policies turn the levers into routine.
A minimum cash balance below which discretionary payments are deferred; a maximum days sales outstanding that triggers action; a rule that no contract above a threshold is accepted without its cash profile being modelled; a dividend policy expressed in terms of cash flow rather than profit; an approval process for capital spending that includes the cash timing. Policies mean cash is managed continuously rather than in crises.
Measurement closes the loop. Days sales outstanding, days payables outstanding, days inventory, the cash conversion cycle, cash conversion of profit, forecast accuracy and facility headroom are reported weekly or monthly, with trends and against targets.
A business that reports these alongside its profit figures manages both; one that reports only profit discovers its cash position when the bank calls. Cash flow management scales with the business.
A sole trader does it with a bank app and a notebook; a group with fifty subsidiaries in twelve currencies does it with a treasury system, cash pooling, hedging and a treasurer. The principles are identical: know the position, forecast it, act early, and hold a reserve.
In practice
Real-world examples.
Example
A restaurant group manages cash daily across 30 sites with a central sweep to one account, a rolling 30-day forecast and supplier payment runs timed to card settlements.
Example
An exporter uses a 12-month currency forecast to hedge its receipts and avoid the cash swings that exchange rates would otherwise cause.
Example
A professional firm manages cash through monthly billing, retainers, a 45-day collection target and a rule that partner drawings are paid only from cash above a reserve.
Think of it
“Cash flow management is like managing your household budget to ensure bills are paid while savings grow.
Formula
Calculation
Cash flow management uses the working capital and forecast measures:
Cash Conversion Cycle = DIO + DSO minus DPO
Cash released by one day's improvement = Annual cost of sales (or sales, for DSO) / 365
Headroom = Cash + Undrawn committed facilities minus Minimum operating balance
Forecast accuracy = 1 minus |Actual minus Forecast| / Forecast
Worked example. A wholesaler with annual sales of $48,000,000 and cost of sales of $34,000,000 has: receivables $9,200,000 (DSO 70 days); inventory $7,500,000 (DIO 80 days); payables $3,700,000 (DPO 40 days); cash $300,000; an overdraft of $2,000,000 usually drawn to $1,700,000. The bank has signalled that it wants the overdraft reduced.
Cash conversion cycle = 80 + 70 minus 40 = 110 days.
A cash flow management programme sets targets and estimates the cash effect:
- DSO from 70 to 50 days: releases 20 x ($48,000,000 / 365) = $2,630,000. Actions: invoice on dispatch (currently weekly), reminder sequence, credit hold at 15 days overdue, two largest slow payers moved to direct debit.
- DIO from 80 to 60 days: releases 20 x ($34,000,000 / 365) = $1,863,000. Actions: stop buying the 400 lines that turn less than twice a year, clear $600,000 of dead stock at a discount, reorder points reset to demand.
- DPO from 40 to 48 days: gains 8 x ($34,000,000 / 365) = $745,000. Actions: pay on the due date rather than the Friday before, renegotiate two major suppliers from 30 to 45 days.
- Total cash effect about $5,200,000 over twelve months, against an overdraft of $1,700,000.
Alongside: a 13-week forecast introduced and reviewed every Monday; a minimum cash balance of $400,000; a rule that the overdraft is a facility for peaks, not a permanent source; and a monthly report to the owners of DSO, DIO, DPO, cash and headroom.
Twelve months later: DSO 54, DIO 63, DPO 46 (cycle 71 days); $3,900,000 released; overdraft repaid and undrawn; $1,500,000 on deposit; and the owners took a dividend for the first time in three years, sized at 50% of the year's free cash flow under a new policy. The stock clearance cost $180,000 in margin and the direct debits cost $8,000 in bank fees. The programme was run by the finance manager and the operations director together, because half the levers were in operations.Case study
Seen in the real world.
A building services company with revenue of $15,000,000 and a healthy margin had been managing cash by the balance in its bank app. Its managing director accepted every contract offered, paid suppliers when they chased, invoiced when the office had time, and treated the overdraft as the company's cash. When three large contracts started in the same quarter, wages and materials ran $400,000 ahead of the first valuations, the overdraft hit its limit, and a supplier stopped deliveries on a site with a penalty clause.
The company brought in a part-time finance director. In three months she built the 13-week forecast, introduced fortnightly applications for payment on all contracts, negotiated 45-day terms with the main merchants in exchange for a volume commitment, set up a payment run every second Friday, and imposed a rule that no contract over $250,000 started without a cash profile showing how its early costs would be funded.
In a year the company had gone from $50,000 of cash and a $500,000 overdraft at its limit to $700,000 of cash and the overdraft undrawn, on the same revenue and margin. Her report to the owners listed what had changed: nothing in the business, everything in when its money moved.
Watch out
Common mistakes.
- Managing cash from the bank balance without a forecast, which shows the position today and nothing about next month.
- Treating the overdraft as the company's money rather than as a facility for peaks that the bank can withdraw.
- Accepting growth, large contracts or capital projects without modelling the cash they will absorb before the revenue arrives.
Questions
People also ask.
What is the difference between cash flow management and profit management?
Profit management maximises the difference between revenue and costs. Cash flow management ensures the cash to operate is there when needed. A business needs both, and the second is the one that kills when neglected.
What is the single most useful cash management tool?
The 13-week rolling cash forecast, updated weekly with actuals and reviewed by the person who runs the business.
How much cash should a business hold?
Enough to cover the largest expected shortfall in the forecast plus a reserve for shocks, commonly two to three months of fixed costs, held separately from operating cash and rebuilt when used.
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