What this is
What is a maintenance cost review?
What is a maintenance cost review?
It is a monthly review of maintenance spend broken down by type — preventive, predictive, corrective, reactive — and by asset, checked against budget and cost per unit of output. It exists to surface the ratio of reactive to planned spend, which is a leading indicator of how well the maintenance function is actually working, independent of whether the total happens to sit inside budget.
Why does the reactive spend percentage matter more than the total spend?
A budget spent mostly reactively is a budget spent twice — once absorbing the emergency repair, and again absorbing the production it lost while the asset was down unplanned. A low total spend with a high reactive share is not a good result; it usually means planned work is being deferred until it becomes an emergency, which costs more overall even though it looks cheaper on the schedule.
What does it mean when an asset is 'above the replacement threshold'?
It means the asset's cumulative or trending maintenance cost has crossed a proportion of its replacement value at which continuing to repair is no longer the economically rational choice. Flagging it here is what triggers a replacement business case rather than another round of corrective work orders on the same failing equipment.
Scope
When is a maintenance cost review required?
This review looks backward at a period of spend already incurred. It does not schedule work or negotiate access — it explains what the money already spent is telling you.
Use this template when
- A monthly period has closed and spend needs breaking down by type, asset and category
- Finance needs a joint sign-off on maintenance figures before they roll into a wider cost report
- An asset's repair cost is approaching or has crossed its replacement threshold and needs flagging
- Budget variance for the period needs an explanation on record, not just a number
- A bad-actor list exists and needs reviewing against this period's spend before the next one closes
Do not use it for
- Weekly Maintenance Schedule, which sets the coming week of planned work against available labour, parts and access windows, not historical spend.
- Schedule Compliance Review, which reviews what was scheduled against what was actually done and why the gap exists, not what it cost.
- Maintenance Backlog Review, which reviews outstanding work by age, priority and asset criticality rather than spend already incurred.
- Production Access Agreement, which records the terms of a single access window, not the cost consequence of the work done in it.
- Anything outside KnowMaintain, which belongs in the workspace that owns that process
Compliance mapping
Which ISO 55001 cl.9.1 requirements does this satisfy?
ISO 55001 cl.9.1 requires monitoring, measurement, analysis and evaluation of asset management performance — cost is one of the performance measures the standard expects to be tracked and acted on, not just reported.
| Clause | Requirement | Where it lands |
|---|---|---|
| cl.9.1 | Identify the period reviewed and the total spend it covers | Header |
| cl.9.1 | Break spend down by preventive, predictive, corrective and reactive category | By type |
| cl.9.1 | Calculate the reactive spend percentage of total, the performance measure the review is scored on | By type |
| cl.9.1 | Identify the highest cost asset and its share of total spend | By asset |
| cl.9.1 | Flag assets above the replacement threshold and confirm the bad-actor list has been reviewed | By asset |
| cl.9.1 | Compare spend against budget and record whether the variance is explained | Against budget |
| cl.9.1 | Assess cost per unit of output and the trend against the previous period | Against budget |
| cl.9.1 | Raise a corrective action where cost performance warrants one | Result |
What it does not cover
- Reactive Percent Of Total, which was calculated but never compared against the thirty percent threshold the help text itself sets out.
- Bad Actor List Reviewed, which was marked Yes with no corresponding entry in Highest Cost Asset or Assets Above Replacement Threshold.
- Variance Explained, which was left as No with no note anywhere describing what drove the gap.
- Replacement Business Case Raised, which was left blank on an asset already flagged as above its replacement threshold.
- Trend Versus Last Period, which was marked Improving while Reactive Percent Of Total actually rose against the prior review.
Global
Maintenance Cost Review requirements by country
The review itself is an internal management practice, but two accounting frameworks and one international standard shape how the numbers behind it should be treated, particularly the replacement threshold decision.
ISO 55001 cl.9.1 (monitoring, measurement, analysis and evaluation)
Cost is one of the performance indicators an asset management system is expected to track, trend and act on, not simply record for a monthly report.
A cost review with no corrective action ever raised, despite a rising reactive trend, is evidence the monitoring requirement exists on paper but isn't closing the loop in practice.
FASB ASC 360 (property, plant and equipment — impairment)
Where cumulative repair cost signals that an asset's carrying value may not be recoverable, that is an impairment indicator finance is required to consider, not just a maintenance planning input.
Assets Above Replacement Threshold is the field that should trigger a conversation with finance about impairment testing, not only a maintenance replacement business case.
IAS 16 as adopted in UK-adopted IFRS (property, plant and equipment)
Subsequent expenditure that extends an asset's useful life or capacity may need capitalising rather than expensing as repair cost, which changes how the by-type spend split should be read.
A large corrective or improvement spend on one asset may belong partly on the balance sheet, which is exactly why finance co-signs this review rather than maintenance alone.
How to complete it
How to complete a maintenance cost review, step by step
The arithmetic in this review is straightforward. The judgement is in what the numbers are allowed to mean once they're in front of both maintenance and finance.
The line between an unplanned corrective job and a true reactive failure is a judgement call, and it is tempting to classify borderline jobs as corrective to keep the reactive percentage looking healthier. The classification has to reflect whether the failure was anticipated and scheduled, not which category makes the score look better.
Flagging an asset as above its replacement threshold commits the organisation to a business case conversation, and there is pressure to leave the flag off one more period to avoid that conversation. The threshold should be applied on the numbers as they stand this period, not deferred until it's undeniable.
Variance Percent is arithmetic; Variance Explained is judgement. A reviewer who cannot explain a variance in one or two sentences has not actually reviewed the spend, only reconciled it.
Trend Versus Last Period compares two points, which can mask a slow multi-month drift toward reactive spend if each individual month looks only slightly worse than the one before. The reviewer's judgement is whether the direction of travel over several periods, not just this one, still supports calling it stable.
What auditors find
Most common maintenance cost review findings
The same weaknesses recur across cost reviews, almost always because the by-type split is completed accurately while the interpretive fields around it are treated as optional.
| Finding | Clause | What fixes it |
|---|---|---|
| Reactive Percent Of Total calculated correctly but never checked against the thirty percent guidance in its own help text | cl.9.1 | Add an automatic flag when Reactive Percent Of Total exceeds thirty percent, forcing a note rather than a silent pass. |
| Assets Above Replacement Threshold populated with a count but no linked business case reference | cl.9.1 | Require Replacement Business Case Raised to be answered whenever the threshold count is greater than zero. |
| Variance Explained marked Partly with no accompanying text describing the unexplained portion | cl.9.1 | Require a short note whenever Variance Explained is anything other than Yes. |
| Contractor Cost rising steadily across periods with no corresponding note on why internal capacity isn't absorbing the work | cl.9.1 | Trend Contractor Cost across periods explicitly, not only as a single-period figure buried in the by-type section. |
| Bad Actor List Reviewed marked Yes on a review with no Highest Cost Asset entered | cl.9.1 | Make Highest Cost Asset a required field whenever Bad Actor List Reviewed is Yes. |
| Feeds Capital Planning left unchecked on a review flagging assets above replacement threshold | cl.9.1 | Auto-check Feeds Capital Planning whenever Assets Above Replacement Threshold is greater than zero, rather than leaving it to be remembered. |
Case in point
Case in point: the pump that was cheaper to fix every time
A single pump appeared in Highest Cost Asset for four consecutive monthly reviews, each time as a modest corrective spend that looked cheap next to the total budget. Its Share Of Total never crossed the internal review threshold on its own in any single month, so it never triggered Assets Above Replacement Threshold.
Only when finance ran a cumulative twelve-month view across the four reviews did the pump's total repair cost exceed sixty percent of its replacement value — a business case that should have been raised in month two, sitting unflagged for a year because each review looked at its own period in isolation.
The template
The template, field by field
The form exactly as it installs. Every field, option, score and conditional rule is editable, and the links to other templates come with it.
6 sections
- Reference
- MNT-083
- Archetype
- Review
- Record ID
- MCR-2026-000
- Scoring
- Reactive spend percent
- Direction
- Low is good
- Singleton
- Yes
- Basis
- ISO 55001 cl.9.1
- Links
- Links Work orders, Reliability
- Tags
- Planning, Cost
- Sections
- 6
- Fields
- 45
- Follow up fields
- 3
- Repeating sections
- 0
- Links out
- 3
Header
10 fieldsReview ID*
Auto sequence. Format MCR-2026-000.
The record's own ID. Other templates point at this value.
Status*
Drives who this goes to next.
- Planned2 pts
- In progress2 pts
- Complete3 pts
- Deferred0 pts
- Open0 pts
- Closed3 pts
- Overdue0 pts
Date and Time*
Completed By*
Site*
Site ID*
Format SITE-000.
Links to FDN-001 Site ID
The Ratio Says More Than The Total
A maintenance budget spent mostly on reactive work is a budget spent twice. Once on the emergency and again on the production it lost.
Period Reviewed*
Reviewed By*
Total Spend*
By type
9 fieldsPreventive Spend*
Predictive Spend
Corrective Spend*
Reactive Spend*
Reactive Percent Of Total*
Above thirty percent reactive means the plan is not working, whatever the total says.
Improvement Spend
Labour Cost
Parts Cost
Contractor Cost
By asset
6 fieldsHighest Cost Asset
Its Share Of Total
Assets Above Replacement Threshold*
Where cumulative maintenance cost passes a share of replacement value, the economic answer is to replace.
Bad Actor List Reviewed*
- Yes3 pts
- No0 pts
Replacement Business Case Raised
- Yes3 pts
- Not needed3 pts
- No0 pts
Feeds Capital Planning*
Against budget
6 fieldsBudget For Period
Variance Percent*
Variance Explained*
- Yes3 pts
- Partly1 pt
- No0 pts
Cost Per Unit Of Output
Trend Versus Last Period*
- Improving3 pts
- Stable2 pts
- Worsening0 pts
Forecast For Remainder Of Year
Related records
1 fieldWork Order ID
Orders the spend was drawn from.
Links to MNT-002 Work Order ID
Result
13 fieldsItems Assessed*
Excludes anything marked N/A.
Items Failed*
Score Percent*
Calculated on submission. High is good. N/A items leave the denominator.
Result Band*
- Pass3 pts
- Caution1 pt
- Fail0 pts
Completeness Percent*
How much of the template was actually answered. A high score on a half completed form is not a high score.
Action Required*
Raise the action record, then enter its reference here.
- No2 pts
- Yes0 pts
Priority
- High0 pts
- Medium1 pt
- Low3 pts
CAPA ID
Format CAPA-2026-00000.
Links to FDN-014 CAPA ID
Action Owner
Maintenance Manager*
Signature*
Finance*
Second Signature*
MNT-083 · record IDs look like MCR-2026-000 · Links Work orders, Reliability
Open in KnowellaRun it with agents
From a document you fill in to a programme that runs itself
The arithmetic in this review is easy to automate. Making sure a flagged bad actor actually turns into a business case, and that the trend gets read across periods rather than one month at a time, is the work that slips.
Rolls work order costs into the by-type and by-asset breakdowns automatically, and carries a bad actor's cumulative spend forward so a slow-building replacement case doesn't reset to zero each month.
Holds the budget figures this review is checked against and flags a variance the moment it crosses tolerance, before the review is due rather than after.
Feeds asset criticality and failure history into the bad-actor list, so By asset reflects reliability data rather than a manually maintained watch list.
Trends the reactive percentage and cost-per-unit figures across periods, surfaces a drift the single-month comparison would miss, and holds every write for your approval before it touches the record.
This template lives in KnowMaintain — asset maintenance. Work orders, planned maintenance, calibration, reliability and shutdowns.
Meet KnowMaintain→Glossary
Maintenance Cost Review definitions and key terms
- Reactive spend
- Cost incurred responding to an unplanned failure, as opposed to work that was scheduled in advance.
- Bad actor
- An asset that repeatedly consumes a disproportionate share of maintenance spend or downtime relative to its criticality.
- Replacement threshold
- The point at which cumulative or trending repair cost against an asset's replacement value makes replacement the more economical choice than continued repair.
- Cost per unit of output
- Maintenance spend normalised against production volume, used to separate genuine cost efficiency from cost that simply looks lower because output fell.
- Variance
- The difference between actual spend for the period and the budgeted figure, expressed as a percentage.
FAQ
Frequently asked questions about maintenance cost review
What is the maintenance cost review template based on?+
It is built against ISO 55001 cl.9.1, which requires monitoring, measurement, analysis and evaluation of asset management performance. Cost, and specifically the reactive spend ratio, is one of the performance measures the review tracks.
What sections does the maintenance cost review contain?+
Six sections: Header, By type, By asset, Against budget, Related records, Result. Together they hold 45 fields, 29 of which are required.
Why is low reactive spend scored as good rather than low total spend?+
Total spend can be low simply because planned work is being deferred, which shows up later as reactive spend and lost production. Scoring the reactive percentage rewards a healthy mix, not a suppressed total.
Who signs off a maintenance cost review?+
The maintenance manager and finance both sign. The joint sign-off exists because the figures only carry weight once both functions agree they're accurate.
What happens when an asset crosses its replacement threshold?+
It should trigger Replacement Business Case Raised and set Feeds Capital Planning, moving the asset from a maintenance conversation into a capital planning one.
Can the maintenance cost review template be changed?+
Yes. Every field, option, score and conditional rule is editable, and the links to work orders and reliability come with it. Most teams install it as it is, run it for a cycle, then adjust.
Keep going
Related templates and programmes
Industries this is written for
Programmes this belongs to
Used together in Planned Maintenance
Asset Register
Holds every piece of equipment, machine, vehicle and tool you track
Tool and Equipment Register
Holds portable tools, gauges, lifting accessories and small equipment that sit below asset level but still need control
Maintenance Request
Asks maintenance to look at a problem or carry out a job
Work Order
The main record for a planned maintenance job, covering what, where, who and when
Corrective Work Order
Covers a repair to fix something that has already failed or degraded
Emergency Work Order
Covers urgent work where equipment has stopped or become unsafe
More in Planning and Scheduling
Weekly Maintenance Schedule
Sets the coming week of planned work against available labour, parts and access windows
Schedule Compliance Review
Reviews what was scheduled against what was actually done, and why the gap exists
Maintenance Backlog Review
Reviews outstanding work by age, priority and asset criticality
Production Access Agreement
Records the access window agreed with production for a job, and what happens if it overruns
Contractor Maintenance Work Order
Covers a maintenance job carried out by a contractor, holding the scope, permits, supervision and handback
Written and reviewed by
Siddarth Singh
Founder & Chief Executive Officer, Knowella
Certified Safety Professional and industrial and systems engineer with more than a decade inside food supply chain, freight and manufacturing operations. This page was written against the current text of the standards it cites, not against secondary summaries of them.
- Certified Safety Professional (CSP), Board of Certified Safety Professionals
- MBA, University of Chicago Booth School of Business
- MS and BS, The Ohio State University, Industrial and Systems Engineering
- Six Sigma Black Belt
Sources and last review. Reviewed 16 August 2026 against:
- ISO 55001 cl.9.1 — Monitoring, measurement, analysis and evaluation
- FASB ASC 360 — Property, plant and equipment (impairment)
- IAS 16 as adopted in UK-adopted IFRS — Property, plant and equipment
This page is general guidance, not legal advice. Confirm requirements with your jurisdiction’s regulator.