Budgets and rolling cash-flow forecasts

Build the budget from operating assumptions

We start with the recent accounts and the decisions the business is considering. Revenue is linked to the relevant drivers, such as volume, price, capacity or customer renewals. Payroll follows the hiring plan; purchases follow production or sales; capital expenditure is separated from recurring operating costs.

Each assumption has a source, an owner and a revision date. Confirmed orders are distinguished from sales pipeline, and contractual costs from management estimates. The forecast contains judgement. Its value depends on making that judgement visible and updating it when evidence changes.

For a seasonal business, a quarterly view may be too short to capture the stock build and later collections. We agree the budget horizon around the operating cycle, while using a shorter weekly cash schedule for immediate decisions.

A rolling 13-week cash view

The cash model begins with reconciled available bank balances and shows expected receipts and payments by week. It covers customer collections, supplier payments, payroll, taxes, debt service and capital purchases. Restricted cash and undrawn facilities are identified separately from money available to spend.

Existing receivables use expected collection dates and known disputes. Future sales use explicit assumptions about conversion and customer payment terms. The model distinguishes committed, expected and uncertain cash flows so a weak pipeline is not presented as confirmed money.

Each weekly update replaces the elapsed week with actual cash movements, explains the difference and adds another forecast week. That preserves a consistent horizon and shows whether recurring misses come from sales assumptions, collections or payment timing.

Scenarios and decisions

We test changes that could affect the cash low point: slower collections, lower sales, earlier supplier payments or delayed financing. The scenario note shows the amount and timing of the shortfall and which management actions could change it. Potential borrowing remains an assumption until the relevant approval and availability conditions are met.

Where a burn-rate measure is useful, we define what it includes. A simple runway estimate divides available cash by average net cash outflow per period. It needs qualification where spending is uneven, receipts are seasonal or a major payment is approaching. A dated forecast provides a fuller view than a single runway number.

You receive the budget, assumptions register, rolling cash forecast, scenario comparison and a variance note at the agreed refresh. Management decides which hiring, purchasing or funding actions to approve. The model records the financial effect of those decisions without implying that forecast results are guaranteed.

Inputs, timetable and scope

We need recent accounts and bank balances, receivable and payable schedules, sales pipeline, committed purchase orders, payroll plans, loan schedules and the existing budget if available. With incomplete books, we can begin with a provisional cash view based on bank balances and known commitments while the accounting gaps are resolved.

The engagement specifies the initial model, forecast horizon, refresh frequency and review meetings. Weekly updates require timely cash and collection information from your team. The number of entities, operating drivers, scenarios and refreshes determines the preparation timetable. We agree whether you need a one-off decision model or a forecast maintained by our team.

Questions about uncertainty

Can we forecast before sales are contracted? Yes, as estimates with stated conversion and collection assumptions. We distinguish those estimates from committed receipts and test the downside.

Does a profitable budget mean we can afford the plan? The cash model must also account for collection delays, stock purchases, taxes, debt payments and capital expenditure. Profit alone does not establish that funds are available when needed.

How often should the forecast change? We agree a normal review cycle and update earlier when a material assumption changes. A large delayed customer payment can justify an immediate refresh.

Can our accountant maintain the model? Yes, if that is the agreed handover. We document the input sources, calculations and update steps so the next version can be traced to the previous one.

See CFO desk support, monthly close work and bank-finance preparation.

Email TheTaxCo, message us on WhatsApp or book a call. Share the decision you are planning, the forecast period and the largest known receipts or commitments over the next three months.