How to Calculate Maintenance Capex for a Business Valuation

To calculate maintenance capex, list every fixed asset the business needs to keep operating, write down what each one costs to replace today and how many years of useful life it has left, divide the replacement cost by the remaining life, and add up the column. That annual figure is your maintenance capital expenditure. Depreciation is the common shortcut and it is unreliable: across US operating sectors, capital spending runs about 123% of depreciation at the median, so the shortcut understates the real cash requirement in most businesses that own equipment.

This is one of the few valuation adjustments where doing the work properly takes an afternoon and changes the answer by six figures. It is also the adjustment sellers skip and buyers never do. If you own trucks, machines, kitchen equipment, vehicles or a building, the number below is the difference between the earnings you report and the earnings you actually keep.

What is maintenance capex?

Maintenance capital expenditure is the cash a business must spend each year to keep its current earning capacity intact. Replacing a tractor at the end of its life, re-roofing the shop, swapping out point of sale hardware, rebuilding a compressor. It buys nothing new. It stops the business shrinking. Because it is a genuine cost of producing this year's cash flow, a valuation deducts it, and a buyer will insist on it whether or not you offer it.

Growth capital expenditure is different in kind. A second location, an extra production line, a fourth truck added to a three truck fleet. It adds capacity the business did not have, and the return on it belongs to whoever pays for it. That is why a valuation separates the two: maintenance spending reduces the cash flow being valued, growth spending is a discretionary investment decision that sits outside the multiple.

The split matters more than people expect. A landscaping company that buys $90,000 of equipment in a year has not necessarily spent $90,000 on maintenance. If $55,000 replaced worn machines and $35,000 was a new crew's kit that let the company take on more contracts, only the $55,000 belongs in the valuation, and the $35,000 should show up as the reason revenue grew. Present it that way with the invoices to back it, and you have just recovered $35,000 of cash flow. At a 3x multiple, that is $105,000 of price.

How to calculate maintenance capex: the asset register method

This is the method a buyer's accountant will use if you do not, so use it first. Take every asset over roughly $5,000 that the business needs in order to keep doing what it does today, and build four columns.

Two things about that table are deliberate. Replacement cost is today's price, not what you paid, because a truck bought in 2019 gets replaced at a 2026 price and the gap between the two is real money. And the annual reserve divides by years remaining, not total life, which front-loads the assets that are nearly due. That is the honest answer to the question a buyer is really asking, which is not what the equipment costs on average but how much of it they are going to have to buy in the first three years.

The version most sellers produce divides replacement cost by total useful life instead. It is smoother, it is easier to defend as a long-run average, and it understates the near-term cash requirement of an aging asset base. If your equipment is young, use it. If half your fleet is past the midpoint, expect the buyer to use remaining life and to be right.

Where the numbers come from is the part that stalls people. Replacement cost is a phone call to the dealer, and useful life is on your depreciation schedule with a sanity check against how long the last one actually lasted. The harder half is reconstructing what you have actually bought over the last five years, because that is what proves the reserve is real rather than a number you wrote down. If the only record is a folder of supplier invoices and card statements, it is worth pulling the line items into a spreadsheet before you start, so the asset register is built from what the business genuinely spent rather than from memory.

Is depreciation a good proxy for maintenance capex?

Only when the two are close, and across US industries they frequently are not. Depreciation is attractive because it sits on the tax return, requires no work and looks objective. It is a historical cost measure: it writes off what you paid, in the year you paid it, on a schedule the tax code picked. Maintenance capital expenditure is a forward cash measure at today's prices. Those two things agree only by coincidence.

The test is the capex to depreciation ratio, and the published numbers are unambiguous. Across 4,822 US listed companies outside financial services in January 2026, capital spending ran 144.74% of depreciation. The median sector ran 122.59%. In other words, the typical business spends about a quarter more cash than its depreciation line suggests, and the market as a whole spends nearly half again as much.

Notice that the error runs both ways. In equipment-owning sectors depreciation understates the cash requirement, because assets get replaced at prices higher than the ones they were booked at. In service sectors it overstates, because there is genuinely less left to replace once the servers moved to somebody else's data center. An advertising agency that deducts its full depreciation as maintenance capital spending is handing a buyer free money. The full picture across all 94 sectors is in our capex by industry benchmarks.

What does a buyer deduct from your EBITDA?

A serious buyer deducts maintenance capital expenditure before they apply any multiple, and they do it whether or not the seller has offered a number. The reason is arithmetic. EBITDA adds depreciation back, which removes the only line on the income statement that stands in for assets wearing out. For an asset light business that is harmless. For an asset heavy one it produces an earnings figure the business cannot actually distribute.

Here is the size of the problem across US operating sectors. After direct capital spending alone, the median sector keeps about 70% of its EBITDA. Trucking keeps about 17%. Air transport keeps about 19%. In four sectors, capital spending exceeds the entire EBITDA of the industry.

Run it on a real business. A trucking company with $2,000,000 of revenue produces roughly $311,600 of EBITDA at sector margins. Replacing tractors and trailers at sector intensity costs about $258,000. Carrying 15% growth ties up another $24,000 in receivables. Roughly $29,600 survives. An SBA loan of $1M on a 10 year term at current rates needs something near $160,000 a year of debt service. The EBITDA covers that three times over; the actual cash does not cover it once. This is not a financing problem, it is a measurement problem, and it is exactly why lenders underwrite equipment businesses on cash flow after capital spending. The working capital half of the same calculation is broken out in our guide to working capital in a business sale.

Maintenance capex on an SDE valuation

Small business valuations run on seller's discretionary earnings rather than EBITDA, and the treatment is slightly different but the exposure is the same. SDE starts from pre-tax profit and adds back owner compensation, owner perks, interest, depreciation and amortization, and genuine one-time items. Depreciation goes back in, so maintenance capital spending is once again invisible.

Most brokers handle this by leaving SDE gross and letting the multiple absorb it, which is why equipment-heavy businesses carry visibly lower multiples: trucking at around 3.1x SDE, landscaping around 2.56x, auto repair around 2.7x, while an accounting practice with a laptop and a client list trades around 2.33x on far lower revenue but with almost nothing to replace. The multiple is doing the work that an explicit deduction would do more transparently.

Where this bites a seller is when the two effects get applied twice. If you accept a below-average multiple because the business is equipment heavy, and then also accept a maintenance capital deduction from earnings, you have paid for the same fact once in the numerator and once in the multiplier. That is a legitimate thing to raise in negotiation, and it is one of the few capital spending arguments a seller can actually win. Our breakdown of SDE multiples by industry shows where your sector sits before that conversation starts.

Five mistakes that cost money

Counting a growth purchase as maintenance. The most expensive mistake in the other direction. If you added a truck rather than replaced one, revenue should have gone up. Show the two together and the spending explains itself.

Using one year of capital spending as the run rate. Capital expenditure is lumpy. A restaurant spends nothing for four years and then $180,000 on a remodel. Any single year is either far too high or far too low, which is why the asset register beats the cash flow statement. If you are handing a buyer historical figures, hand them five years, not one.

Ignoring leased equipment. A business that leases its trucks shows almost no capital expenditure and a much larger operating expense, so its EBITDA is already lower. Comparing a leasing operator to an owning operator on capital intensity alone gets the answer backwards. If leases are being added back anywhere in the earnings calculation, the assets behind them have to reappear somewhere.

Deferring maintenance in the year before a sale. It raises reported earnings and it is the first thing an experienced buyer looks for. A fleet with an average age two years above normal is visible in a walkthrough, and the buyer prices the catch-up spending in at full cost rather than at your multiple. You gain a year of earnings and lose several years of price.

Forgetting the assets that are not equipment. Software licenses, a website rebuild, leasehold improvements with a finite life, vehicle wraps, tooling. None of them feel like capital, all of them come due, and together they often add up to more than the machines in a service business.

Where the number goes in a valuation

Once you have an annual maintenance figure, it enters the valuation in one of two places, and it should only enter one. In a discounted cash flow it is subtracted directly, along with the working capital build, to get to free cash flow before you discount anything. In a multiple approach it is either deducted from earnings and a normal multiple applied, or left in and a lower multiple used to reflect the capital intensity. Doing both is double counting, and doing neither is how an equipment business gets valued like a consultancy.

The practical order of work: build the asset register before you go to market, compare the annual reserve against your depreciation and against your sector's capex to depreciation ratio, and be ready to explain any gap. If your reserve is well below sector depreciation, prove the equipment is young. If it is well above, say so before diligence finds it, because a number you volunteer is an adjustment and a number a buyer discovers is a credibility problem. When you are ready to see what the earnings actually support, run the numbers through our valuation calculator with the capital deduction already made.