COMM1140 Chap.6 Free Cash Flow Estimation
Free Cash Flow Estimation
Free cash flow supports intrinsic valuation by estimating cash generated for debt and equity providers after operating tax and required reinvestment. The bridge begins with EBIT, applies tax, adds back non-cash depreciation and deducts capital expenditure plus increases in operating working capital. Sign discipline matters: a working-capital increase uses cash, while a decrease releases it.
Interpretation matters equally because cutting reinvestment can raise current cash while weakening future capacity. Forecasts should expose the operating drivers rather than apply one growth rate to a final total.
What this chapter covers
- 01
Intrinsic versus relative valuation
- 02
After-tax operating profit
- 03
Non-cash depreciation
- 04
Capital expenditure
- 05
Operating working capital
- 06
Forecast consistency
Worked example · free
Estimate cash after reinvestment
- +1After-tax operating profit is $36m × 75% = $27m.
- +1Add $4m depreciation because it reduced profit without current cash outflow.
- +1Deduct $9m capital expenditure and $3m additional working capital.
- +1Free cash flow is $27m + $4m - $9m - $3m = $19m.
Key terms
- Free cash flow
- Operating cash available to capital providers after tax and required long-term plus working-capital reinvestment.
- EBIT
- Earnings before interest and tax, an operating measure used before financing effects.
- Depreciation add-back
- Reversal of a non-cash expense when reconciling operating profit to cash flow.
- Capital expenditure
- Cash invested in long-term operating assets, deducted when estimating free cash flow.
- Net working capital
- Operating current assets less operating current liabilities, whose increase generally uses cash.
Free Cash Flow Estimation FAQ
Why is depreciation added back?
It reduced accounting profit but did not use current-period cash. Capital expenditure captures cash investment; the add-back does not claim assets are costless or remove the need to fund future replacement.
Why does a working-capital increase reduce cash flow?
More receivables or inventory ties up cash, net of operating liabilities. The company has funded operations before receiving the related cash benefit, so the increase is deducted in the bridge.
Can higher free cash flow signal underinvestment?
Yes. Cutting capital expenditure or inventory can release cash temporarily while damaging capacity, service or growth. Compare investment with operating needs, forecast sales and the condition of the asset base.
Why start from EBIT rather than net income?
Free cash flow to the firm is measured before distribution between debt and equity holders. EBIT keeps interest financing effects outside the operating bridge and preserves the enterprise perspective throughout the estimate.
How should I forecast working-capital investment?
Connect receivables, inventory and operating payables to the sales and operating assumptions that create them. A growth forecast usually requires more resources unless collection, inventory or supplier terms improve. Calculate the change in operating net working capital and explain its sign: an increase ties up cash, while a decrease releases it.
Test unusual releases against customer payments, stock availability and supplier relationships before treating them as permanent. Keeping cash and interest-bearing debt outside the operating measure preserves the enterprise perspective used in free cash flow to the firm.
Why are depreciation and capital expenditure both needed?
Depreciation is an accounting allocation of asset cost and reduces EBIT without a current cash payment, so it is added back. Capital expenditure records current cash committed to acquiring or renewing long-term capacity, so it is deducted. The two amounts can differ because they relate to different asset vintages and decisions. Treating them as automatically equal can hide expansion, contraction or underinvestment.
Compare capital spending with maintenance needs, growth plans and the asset base before interpreting a high current free-cash-flow result as sustainable.
What makes a free-cash-flow forecast internally consistent?
Revenue growth, operating margin, tax, capital intensity and working-capital efficiency must describe one plausible operating path. Rapid growth with no extra inventory, receivables or capacity needs evidence of a genuine process improvement or asset-light model. Capital expenditure below depreciation may be sustainable in one business and a warning in another.
Use common nominal or real assumptions, preserve the same entity and forecast period, and run sensitivities on the operating drivers rather than applying a single growth rate to the final cash total.
How should I interpret the same free cash flow produced by different firms?
Decompose the total before ranking the firms. One company may generate stable operating cash after maintaining capacity, while another may release receivables, reduce inventory or postpone capital expenditure. Those actions can produce the same current amount but imply different recurrence and risk. Compare revenue growth, margins, working-capital days, asset age, maintenance requirements and planned investment.
Separate a genuine operating improvement from a temporary release or underinvestment. The conclusion should state which driver creates the cash, whether it can persist and what operational evidence would confirm that judgement.
Exam move
Memorise the bridge by meaning, not symbols: after-tax operations, reverse non-cash charges, deduct long-term reinvestment, deduct added operating working capital. Practise both increases and decreases in working capital. After every calculation, classify the change as operating improvement, temporary release or investment reduction.
Build forecasts from revenue, margin, tax, capital intensity and working-capital drivers, and test whether those assumptions can coexist operationally.
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