Capability vs conduct: why the route matters

When someone is not performing, the first question is why. Choosing between a capability route and a conduct route at the start shapes everything that follows, and getting it wrong can make a fair outcome harder to reach.

Conduct is about choices, capability is about ability

Conduct issues are about behaviour someone can control, such as repeated lateness or breaking a rule. Capability is about whether someone can do the job to the standard required, often despite trying. The same outcome on paper can need a very different process.

Why the distinction matters

A capability issue usually calls for support, training, clear targets and time to improve. A conduct issue usually calls for a disciplinary route. Treating poor performance as misconduct can feel unfair and unravel later. Treating misconduct as a training need can let a real problem drift.

How to decide

Look honestly at the cause. Has the person been trained and given the tools to succeed? Is the standard clear and achievable? Have they been told where they are falling short? Your answers point to the right route.

• Trying but struggling: likely capability.
• Able but not bothering: likely conduct.

Give a fair chance to improve

For capability, set clear and realistic goals, offer support and review progress over a sensible period before considering more formal steps. Write down what was agreed so everyone is clear on what good looks like.

Common mistakes to avoid

• Labelling every performance issue as misconduct.
• Setting vague targets nobody can measure.
• Skipping support and going straight to formal action.
• Not recording what was agreed.

Want your managers to handle situations like this with more confidence? See our HR training.

Last reviewed: 19 June 2026.

This article is general guidance for employers. It is not a substitute for tailored HR or legal advice for your particular situation.