What it means
The line between maintenance and improvement is the first thing to get right. Replacing worn brake pads on a delivery van keeps it doing what it already did, so it is maintenance, whereas fitting a refrigeration unit that lets the same van carry chilled goods adds capability, so it is capital expenditure.
The test is whether the spend restores the asset or enhances it. That distinction has real consequences.
Capitalising a repair moves cost off this year's income statement and spreads it over future years through depreciation, which flatters current profit, so it is an area auditors examine closely and a recurring cause of restatements. Managers usually split maintenance into planned and unplanned work.
Planned or preventive maintenance is scheduled servicing designed to stop failures happening, while unplanned or reactive maintenance is what happens after a breakdown. Reactive work is almost always more expensive per incident once lost production and emergency call-out rates are counted.
Because of that, maintenance is one of the easiest budgets to cut and one of the most expensive to have cut. Deferring servicing improves this quarter's profit while quietly building a maintenance backlog that surfaces later as failures, safety incidents and shortened asset lives.
Boards increasingly ask for the backlog figure alongside the spend figure. The usual measures are maintenance spend as a percentage of revenue and as a percentage of the replacement value of the asset base, along with cost per machine or per square metre.
Tracking the mix between planned and reactive work is often more revealing than the total.
In practice
Real-world examples.
Example
A bus operator budgets $2,000 per vehicle per year for scheduled servicing across a fleet of 90 buses, giving a planned maintenance budget of $180,000. Anything beyond that, such as an engine rebuild after a failure, is recorded separately so the board can see how much unplanned work is occurring.
Example
An office landlord charges tenants a service fee that covers lift servicing, boiler inspections and grounds upkeep. Because these costs simply keep the building operating, they are maintenance expenses, while a new lift installation would be capitalised.
Example
A bakery replaces the heating elements in an oven for $6,000, restoring it to normal operation, and books the cost as a maintenance expense. Six months later it spends $45,000 adding a second deck that raises capacity by 30%, and that amount is capitalised and depreciated.
Formula
Calculation
Maintenance Expense Ratio = Total Maintenance Expenses / Revenue
Cost Per Asset = Total Maintenance Expenses / Number Of Assets
A plastics moulding business spends $360,000 a year keeping its factory running, split between $210,000 of planned servicing and $150,000 of reactive repairs. Revenue for the year is $9,000,000.
Maintenance expense ratio = $360,000 / $9,000,000 = 0.04, or 4% of revenue. With 24 moulding machines, cost per machine = $360,000 / 24 = $15,000 a year. Reactive work is $150,000 / $360,000 = 0.4167, or about 42% of total maintenance spend.
The operations manager proposes an expanded preventive programme costing an extra $40,000 a year, which he expects to cut reactive spend to $60,000. Total maintenance would then be $210,000 + $40,000 + $60,000 = $310,000, a saving of $360,000 - $310,000 = $50,000, and the ratio would fall to $310,000 / $9,000,000 = 0.0344, or about 3.4% of revenue.Case study
Seen in the real world.
Whitcombe Dairies is a fictional milk processing business, presented here purely as an illustrative example. Under pressure to hit an annual profit target, its plant director deferred roughly $120,000 of scheduled servicing across the pasteurising line in the final quarter, and the year closed slightly ahead of budget.
The following March a heat exchanger failed during a peak production week. Emergency repairs cost $95,000, three days of production were lost at an estimated contribution of $40,000 a day, giving $120,000 of lost contribution, and a major customer imposed a service credit of $25,000. The total cost of the incident came to $95,000 + $120,000 + $25,000 = $240,000 against the $120,000 that had been saved.
In this illustrative account the company introduced two changes rather than blaming an individual. Maintenance spend was ring-fenced from in-year cost savings, and the monthly board pack began reporting the deferred maintenance backlog in dollars alongside the amount actually spent.
Watch out
Common mistakes.
- Capitalising routine repairs to protect current-year profit, which overstates both assets and earnings and is one of the most common audit adjustments in asset-heavy businesses.
- Treating a maintenance underspend as a genuine saving, when in most cases the work has merely been postponed and will return at a higher cost.
- Reporting only total maintenance spend without splitting planned from reactive work, which hides the deterioration that a rising reactive share would reveal.
Questions
People also ask.
When should maintenance spending be capitalised?
Only when it clearly extends the asset's useful life, increases its capacity or improves its output quality, rather than simply restoring it to its previous condition.
What is a reasonable level of maintenance spend?
It varies enormously by industry, but many manufacturers aim for somewhere between 2% and 5% of revenue, or roughly 2% to 4% of the replacement value of the asset base.
How should a maintenance backlog be measured?
By valuing the outstanding scheduled work that has not been carried out, in dollars, and reporting it each month so that deferrals are visible rather than invisible.
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