Term · Cash Flow & Working Capital
Maintenance Capex
In briefMaintenance capex is the estimated investment needed to preserve existing capacity and earnings power. Distinguishing it from growth investments helps assess what share of free cash flow is durably available.
Definition
Maintenance capex is the analytically estimated investment required to preserve existing capacity and earnings power.
How it is calculated
Formula. No standardised accounting formula. A common approximation: total capex less traceable growth investments.
Why it matters for small caps
The distinction helps assess which part of free cash flow is sustainably available and which part is burdened by expansion.
Common misreadings
- Companies rarely report maintenance capex consistently. Depreciation is not a reliable automatic substitute.
In the process
Frequently asked
What is maintenance capex?
It is the investment needed merely to maintain the ongoing business. It secures existing capability without expanding it.
How do you estimate maintenance capex?
Since there is no uniform accounting formula, you approximate it via total capex less traceable growth investments. That gives the maintenance-related share.
Why is the estimate tricky?
The split usually rests on estimates, because companies rarely separate maintenance and growth investments cleanly. In addition, accounting depreciation does not automatically reflect the actually required replacement investment.
Related terms
Sources
Primary
IFRS Foundation – IAS 16 Property, Plant and Equipment
https://www.ifrs.org/issued-standards/list-of-standards/ias-16-property-plant-and-equipment/
https://www.ifrs.org/issued-standards/list-of-standards/ias-16-property-plant-and-equipment/
Methodology
ESMA – Guidelines on Alternative Performance Measures
https://www.esma.europa.eu/document/esma-guidelines-alternative-performance-measures
https://www.esma.europa.eu/document/esma-guidelines-alternative-performance-measures
Education only, not investment advice. Ranges and thresholds are didactic orientation values, not an official standard.