Cash Flow Forecast
Track a running cash balance across a sequence of periods from expected inflows and outflows, and see whether you dip negative or breach an overdraft limit.
Données vérifiées · juillet 2026
What happens if inflows and outflows have different lengths?
The forecast runs for as many periods as there are inflow entries — any missing outflow for a period is treated as zero, so make sure both lists cover the same periods in the same order.
Source : ICAEW / ACCA management accounting — cash flow forecasting method; generic treasury practice on running balance and overdraft headroom monitoring. · mise à jour 2026
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Tout savoir sur Cash Flow Forecast
📋Présentation+
A cash flow forecast carries an opening balance forward period by period, adding expected receipts and subtracting expected payments to build a running balance. This calculator flags the lowest point the balance reaches, how many periods dip into deficit, and whether any period would breach an available overdraft limit — the earliest possible warning of a cash squeeze.
💡 Bonnes pratiques
- Build inflows and outflows from realistic timing (when cash actually moves), not from invoice or accrual dates — a profitable period can still show a cash deficit.
- Re-run the forecast whenever a large one-off payment (VAT quarter, tax bill, capital purchase) is confirmed — these are the most common causes of a breach.
- If the forecast shows a deficit more than one period out, that is usually enough lead time to arrange additional headroom before it becomes urgent.
🔢 Exemple concret
£10,000 opening balance, inflows of £10,000/£8,000/£12,000 and outflows of £9,000/£11,000/£7,000 across 3 periods: balance dips to £8,000 in period 2 but never breaches a £5,000 overdraft limit.
📖Guide d'utilisation+
Comment utiliser ce calculateur
- 1
Enter your opening cash balance for the first period.
- 2
Enter expected cash inflows for each period (comma-separated).
- 3
Enter expected cash outflows for each period (comma-separated, same order as inflows).
- 4
Enter your overdraft limit if you have one, to see if the forecast breaches it.
📚Glossaire+
- Running balance
- The cash balance carried forward from one period to the next, updated each period by adding inflows and subtracting outflows from the prior balance.
- Margin of safety (cash)
- How far the lowest forecast balance sits above zero (or above the overdraft limit) — the cash cushion before the business runs out of funds.
ℹ️Sources & MAJ+
Dernière mise à jour des données
7 juillet 2026
Sources et références
ICAEW / ACCA management accounting — cash flow forecasting method; generic treasury practice on running balance and overdraft headroom monitoring.
Les données de ce calculateur sont mises à jour régulièrement pour refléter les derniers barèmes officiels. En cas de doute, consultez les sources officielles mentionnées ci-dessus.
FAQ — Cash Flow Forecast
What happens if inflows and outflows have different lengths?+
The forecast runs for as many periods as there are inflow entries — any missing outflow for a period is treated as zero, so make sure both lists cover the same periods in the same order.
Does a positive closing balance mean the forecast is safe?+
Not necessarily — check the lowest balance and periods in deficit too, since a healthy closing position can still hide a dip that breaches your overdraft limit mid-way through.