Support your figures
Create a profit forecast: how much growth becomes profit?
Your profit forecast depends on two sides: expected income and the costs required to earn it. With a narrow margin, a modest cost increase can have a large effect. Calculate each side separately and state exactly what the result includes.
State which measure of profit you mean
Profit before tax differs from disposable income. Interest, depreciation and one-off items can also change the meaning of a reported profit figure. Label the rows clearly and check that the input contains all relevant costs. In an XAF forecast, account classification matters as much as the growth percentage.
Consider the reference period too. Two unusually strong months give a different baseline from a fully posted year. Explain why the selected period is representative. If entries are missing, the calculation may remain technically possible while the expectation becomes overly optimistic.
Example: 5% sales growth but lower profit
The fictional baseline is monthly income of €10,000 and costs of €9,000. If both increase by 5%, profit becomes €1,050. If costs rise by 10% while income rises by 5%, only €600 remains. Revenue has grown, but profit has fallen from €1,000 to €600.
| Scenario | Income | Costs | Profit |
|---|---|---|---|
| Historical baseline | €10,000 | €9,000 | €1,000 |
| Both +5% | €10,500 | €9,450 | €1,050 |
| Income +5%, costs +10% | €10,500 | €9,900 | €600 |
Investigate what drives the difference
Separate the changes into prices, quantities and cost types. Selling more products may require more purchasing, while a fee increase mainly changes income. A new employee can create a step in fixed costs. An overall cost percentage is useful for an initial exploration, but does not replace that explanation.
Review available cash alongside annual profit. Reported profit can only fund a repayment when cash is actually available. Keep the source period, account classification and assumptions with a shared report. This lets you reproduce the result and compare a new version on consistent terms.
Common questions
Does the forecast calculate profit after tax?
The XAF forecast uses your selected income and costs. It does not perform a separate tax calculation for your legal form or personal circumstances. Use an appropriate tax calculation to estimate disposable income.
Why is my profit forecast negative?
Under the selected period and assumptions, costs exceed income. First check missing revenue, account classification and one-off entries. If the source is correct, a negative result shows that the chosen assumptions do not produce a positive outcome.
Sources and product scope
The worked examples were prepared by Rekenbox for explanation. Product behaviour and source references were checked on the stated update date.
Background on revenue, purchase costs and other operating expenses. KVK · Winst-en-verliesrekening ↗
Continue your preparation
Support your figures
Create an operating budget: from revenue to expected profit
Creating an operating or profit budget? See a worked example with revenue, purchases, operating costs and profit before tax.
Read the guideSupport your figures
Create a revenue forecast: support quantities and selling prices
Build a revenue forecast from hours, customers, quantities or historical XAF figures. Includes a price-volume example and growth and seasonality checks.
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Support your figures
Create a cash-flow budget: when might cash run short?
Preparing a business or bank cash-flow forecast? Follow opening cash, receipts and payments in a monthly example. Understand the difference from profit.
Read the guide