Quick answer: Buyers price a company on the cash it produces, so a sale forecast should run from revenue to free cash flow. Build gross margin from price, product mix and input costs. Split expenses into variable, fixed and step costs. Tie maintenance and growth capital spending to the assets and capacity the revenue plan needs. Forecast working capital from receivable, inventory and payable days, because growth absorbs cash. Each change from the normalized level of the last twelve months needs a stated cause.
Key points
- Free cash flow is the output buyers care about. EBITDA leaves out the equipment and working capital that growth consumes.
- Gross margin moves with price, mix and input cost, so a blended margin held flat is wrong whenever the mix is shifting.
- Growth consumes working capital, so a faster revenue plan can produce less cash in the year it is delivered.
- A margin change needs a named cause, a date and a document, or buyers often hold margin at the normalized level.
Why the forecast has to end in cash
A sale forecast is complete when it carries revenue through to free cash flow, which is EBITDA less taxes paid, capital spending and the cash absorbed by growth in working capital. EBITDA alone shows profit before the business pays for its own upkeep and expansion.
Lenders size loans from the cash left after capital spending and working capital, and equity investors measure their returns on the same cash. A buyer handed a forecast that stops at EBITDA fills in the missing lines itself, and it tends to do so cautiously. The table shows the lines in the order a buyer reads them, and the hub guide to financial projections places them within the whole model.
| Line | What moves it | What a buyer tests |
|---|---|---|
| Gross margin | Price realized, product and customer mix, input costs | Whether each change from the normalized level has a dated cause and a document |
| Operating expenses | Volume, contracts and decisions, capacity limits | Whether headcount and overhead grow with the revenue plan, including the owner’s replacement cost |
| Capital spending | Age and condition of assets, capacity the plan requires | Whether spending covers today’s upkeep and the capacity behind new sales |
| Working capital | Receivable, inventory and payable days applied to growing sales | Whether the cash absorbed by growth is shown and matches the history behind the peg |
Gross margin: price, mix and input cost
Forecast gross margin from its drivers instead of typing a percentage. Price is what the business collects after discounts, rebates and freight allowances. Mix is the share of sales earned by each product line or customer group, each at its own margin. Input cost is what materials, freight, direct labor and subcontractors cost to deliver a unit.
The drivers do not act equally. A price increase that holds falls almost entirely to gross profit, while a volume increase brings its own cost with it. Input costs often rise before the matching price increase reaches customers, so a careful forecast shows the lag and what governs it, such as an index clause in a contract. New revenue deserves its own margin too, because accounts are often won at sharper prices than the base pays.
Illustrative example: Why a flat margin fails when the mix shifts
Line A earns a gross margin of 40 percent and Line B earns 20 percent, both placeholders, and neither changes in the forecast. Line A stays flat and Line B grows by half.
| Line A | Line B | Total | |
|---|---|---|---|
| Current revenue | $5,000,000 | $5,000,000 | $10,000,000 |
| Current gross profit | $2,000,000 | $1,000,000 | $3,000,000 |
| Forecast revenue | $5,000,000 | $7,500,000 | $12,500,000 |
| Forecast gross profit | $2,000,000 | $1,500,000 | $3,500,000 |
The blended margin falls from 30 percent to 28 percent. Holding it at 30 percent would show $3,750,000 of gross profit, which is $250,000 too high. The numbers are invented to show the mechanics and are not benchmarks.
The decision rule is to hold gross margin at the normalized level for the last twelve months (LTM) and move it only for a cause with a date and a document, such as a price increase already in effect, a signed supplier contract or a mix shift visible in the order book. Improvement that depends on hoped-for efficiency belongs in an upside case, as the guide to base, upside and downside cases explains.
Operating expenses: variable, fixed and step costs
Classify each expense line by how it behaves before forecasting it. Setting operating expenses as a constant share of revenue is a shortcut buyers recognize at once, because it fixes margin by construction and hides both the benefit of scale and the cost of growth.
| Behavior | Typical lines | Forecast it from | A buyer asks |
|---|---|---|---|
| Variable | Commissions, outbound freight, payment fees | A rate on the driver it follows, such as sales or orders | Does the rate match monthly history? |
| Fixed | Rent, insurance, salaried staff | Contract terms, scheduled raises, renewal quotes | Do known increases appear on their dates? |
| Step | Supervisors, a second shift, another warehouse | A capacity threshold that triggers the cost, with a date | What can the current team handle, and what must be hired first? |
| Discretionary | Marketing, training, repairs | Management decisions tied to the growth plan | Was spending cut before the sale, and must it be restored? |
Step costs are where optimistic forecasts usually break. A plan that opens a new region without a manager, or adds a second shift without supervisors, has found growth the current team cannot deliver, and the hire often has to be paid for months before the revenue arrives. Buyers read the headcount schedule beside the revenue schedule for this reason.
Two points keep expenses consistent with the earnings a buyer is pricing. The forecast starts from the same base as adjusted EBITDA, so costs removed as add-backs stay out and the market-rate cost of the roles the owner fills stays in, as the guide to owner compensation normalization explains. Known increases such as lease escalators and insurance renewals also appear on their dates, because a buyer reads their absence as a model built from the top down. Operating leverage is credible when the model names the fixed costs being spread and shows the capacity to absorb the added volume.
Capital spending: upkeep first, then growth
Capital spending has two jobs, and the forecast should show them separately. Maintenance spending keeps current capacity and output through replacements and repairs. Growth spending adds capacity or a capability the revenue plan depends on. The guide to maintenance and growth capital spending explains why buyers care about the split.
Build maintenance spending from the asset register and not from depreciation. List each major asset with its age, condition, remaining life and replacement cost, and schedule replacements on dates. Depreciation follows historical cost and accounting lives, while a replacement is bought at current prices. Maintenance set equal to depreciation, or at the low level of recent years, raises the question of whether equipment has been run past its life to lift cash before the sale.
Growth spending must connect to the revenue plan. If sales outgrow what the plant, fleet or team can handle, the model needs the equipment, space or hires that add capacity, dated ahead of the revenue. Where spending was deferred, buyers find it in asset ages, repair costs and a gap between spending and depreciation, and they often treat the catch-up as a price reduction.
Working capital: the cost of growth
Working capital is the cash tied up between paying for inputs and collecting from customers, and a growing business ties up more of it because receivables and inventory are funded before the cash arrives. Forecast it from receivable days (billing terms and actual payment behavior), inventory days (stocking policy and lead times) and payable days (supplier terms), applied to forecast sales and cost of goods, monthly in the first year to show seasonality and annually after that.
The forecast and the working capital peg should tell the same story. Buyers commonly set the peg from a trailing average of monthly balances, adjusted for seasonality and growth, as the guide to the working capital peg describes. A forecast that assumes less working capital per dollar of sales than the history shows invites an argument for a higher peg or a lower price. Assuming customers will pay faster, with no change in terms or collection practice behind it, is margin expansion without a cause in working capital form.
Illustrative example: How growth can lower cash while EBITDA rises
Both cases start from revenue of $10,000,000 and an EBITDA margin of 15 percent. Net working capital is 20 percent of revenue, and maintenance capital spending is $300,000 a year. The growth case adds $2,000,000 of sales and needs $200,000 of extra equipment. These are placeholder assumptions.
| No-growth case | Growth case | |
|---|---|---|
| Revenue | $10,000,000 | $12,000,000 |
| EBITDA | $1,500,000 | $1,800,000 |
| Less maintenance capital spending | $300,000 | $300,000 |
| Less growth capital spending | $0 | $200,000 |
| Less increase in working capital | $0 | $400,000 |
| Cash flow before taxes and financing | $1,200,000 | $900,000 |
Growth adds $300,000 of EBITDA but absorbs $600,000 of cash in equipment and working capital, so cash flow falls by $300,000. Cash flow drops from 80 percent of EBITDA to 50 percent. A buyer sees this timing, and a forecast that stops at EBITDA hides it. The numbers are invented to show the mechanics and are not benchmarks.
Tie-out checks before a buyer sees the model
Five questions put to the model surface the usual problems in the cost and cash lines. The guide to common projection mistakes covers the wider list.
- Does every change in gross margin have a cause, a date and a document?
- Does headcount rise with volume, and does each new role appear before the revenue it supports?
- Does capital spending cover both the upkeep of today’s assets and the capacity the revenue plan needs?
- Do working capital days match the history behind the peg, and is the cash absorbed by growth visible?
- Does free cash flow reconcile to a cash flow statement that starts from actual LTM results?
The guide to driver-based forecasting shows how to lay out the assumptions page behind these answers, and the guide to how buyers test projections shows what the buyer asks for next.
Frequently asked questions
What is the difference between EBITDA and free cash flow in a sale forecast?
EBITDA is profit before interest, taxes, depreciation and amortization. Free cash flow subtracts taxes paid, capital spending and the increase in working capital from it. A growing company can show rising EBITDA and falling free cash flow, because growth needs equipment and funds receivables and inventory.
How should capital spending be forecast for a sale?
Start from the asset register, with each major asset’s age, condition, remaining life and replacement cost, and schedule replacements on dates. Add the growth spending the revenue plan requires, labeled separately. Depreciation is a weak guide because it reflects historical cost and accounting lives.
How do buyers expect working capital to be forecast?
From days, applied to the revenue and cost forecast. Receivable days reflect billing terms and how customers actually pay, inventory days reflect stocking policy and lead times, and payable days reflect supplier terms. A monthly view in the first forecast year shows seasonality.
Will a buyer accept a forecast with improving margins?
Yes, when each gain has a named cause, a date and a document, such as a price increase already in effect or a signed supplier contract. A gain explained only as operating leverage or efficiency is usually held at the normalized level in the buyer’s own case.
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Related guides
- Maintenance Capex vs Growth Capex: Why Buyers Care and How to Separate Them: Maintenance capex holds current earnings and growth capex adds new ones. See how buyers separate them, price deferred maintenance and read capex in a cash flow view.
- Net Working Capital Peg: How the Working Capital Adjustment Works: The working capital peg sets the level of working capital a seller must leave in the business at closing. See how it is calculated, negotiated and adjusted.
- Hockey-Stick Projections and Other Mistakes That Cost Sellers Credibility: The forecast mistakes that cost sellers credibility, from hockey-stick growth to margins with no cause, with what a buyer concludes from each and the fix.
- Driver-Based Forecasting for a Business Sale: Build a Model Buyers Can Test: Driver-based forecasting builds a sale projection from units, price, utilization and retention. See driver trees for a manufacturer and a services firm.
- LTM, Run-Rate and Forward EBITDA: Which Period Buyers Price: LTM, run-rate and forward EBITDA compared: how each is built, why buyers price the trailing twelve months, and when seasonality or growth changes the answer.
- Base, Upside and Downside Cases: Scenario Analysis for Sale Projections: Scenario analysis for a sale: what moves between base, upside and downside cases, how to label assumptions and how lenders and buyers use the downside.
This guide is general education. It is not a valuation opinion, appraisal, investment advice, or legal or tax advice. How these guides are made.