Every manager of people makes HR decisions — hiring, performance feedback, compensation conversations, terminations, leave requests, accommodation requests, employee relations. The decisions have material consequences for both the business and the individual employees. Despite this, most managers have received little or no formal HR training; they make these decisions based on common sense, organisational tradition, and occasional consultation with the HR function. The gap produces predictable mistakes that fundamentals training would prevent, and the fundamentals are accessible without becoming an HR specialist.
The Legal Floor That Managers Need to Know
Employment law varies by jurisdiction, but the categories managers need awareness of are consistent: protected characteristics under anti-discrimination law, wage and hour requirements, leave entitlements, accommodation obligations for disability and religion, requirements for terminations, retaliation prohibitions. Managers do not need to be lawyers; they need enough awareness to recognise when a decision they are about to make has legal implications and consult HR before acting. The most common HR-related legal exposure for employers comes from managers acting without that awareness.
Hiring: The Decisions Most Managers Get Partly Wrong
Hiring is one of the most consequential manager activities and one where untrained instincts produce predictable issues. Interviewing on inadmissible topics (family status, religion, plans for children) creates legal exposure. Evaluating cultural fit without defined criteria privileges similarity to existing team members and produces discriminatory outcomes even when no individual interviewer intends discrimination. Reference checking that asks open-ended questions about personal qualities introduces bias. The fundamentals here — structured interviews with role-relevant criteria, defined evaluation rubrics, multiple interviewers with calibration — are well-established and consistently produce better hires.
Performance Conversations Without the Avoidance Pattern
Most managers avoid difficult performance conversations longer than they should. The avoidance is understandable — these conversations are uncomfortable — but it produces predictable outcomes: performance issues that compound, employees who are blindsided when consequences arrive, terminations that are legally riskier because the documentation does not show prior performance management. The fundamentals are specific feedback (behaviour-and-impact rather than character-and-judgement), clear expectations, documentation of conversations, and consistency in how performance is managed across employees. Managers who have been trained on these basics handle the conversations better than managers who have not.
A pattern that consistently produces legal exposure: a manager has informal concerns about an employee's performance, never documents them, never has the explicit conversation, and then moves to termination when the issues become unmanageable. The employee's personnel file shows no prior issues. The termination is then difficult to defend because the documented record contradicts the actual concern. Managers who have basic HR training avoid this pattern; managers who have not stumble into it routinely.
Compensation Conversations That Do Not Damage Trust
Compensation decisions are typically made above the manager but communicated by the manager. Untrained managers either over-promise during the conversation (creating expectations they cannot meet) or treat the conversation as transactional (delivering the number without context). Skilled compensation conversations explain how the decision was made, what the employee's position in the band reflects, what would change it in future cycles, and how the company thinks about pay. The conversation is not about justifying the number; it is about the employee leaving the conversation with the same trust they had before it. Manager training on these conversations is consistently undervalued and consistently high-leverage.
The Boundaries Managers Need to Respect
There are HR matters managers should not handle alone: complaints of harassment or discrimination, accommodation requests with medical components, employee mental health concerns, terminations of any kind, suspected policy violations of consequence. Untrained managers sometimes attempt to handle these directly out of good intent and produce worse outcomes than escalation would have. The fundamental skill is recognising when a situation has crossed into territory that requires HR partnership and bringing HR in early enough to be useful rather than after the manager has already created complications.
Topics Every Manager Should Have Covered
- Anti-discrimination basics — protected characteristics, what they imply for hiring, performance, and termination
- Structured interviewing — role-relevant criteria, defined rubrics, calibration across interviewers
- Behaviour-based feedback — specific, documented, paired with expectations
- Performance management cycle — setting expectations, regular feedback, escalation, formal performance plans
- Compensation conversation mechanics — context, philosophy, what drives next-cycle decisions
- When to escalate to HR — complaints, accommodations, terminations, suspected violations
- Documentation discipline — what to document, what not to, how to write it well
The Manager Training Investment That Pays Back
Organisations that invest in basic HR training for first-line managers consistently produce better employee outcomes, lower legal exposure, and stronger performance management cultures than organisations that don't. The investment is not large — a structured programme can deliver the fundamentals in 10-20 hours per manager, refreshed every couple of years. The alternative is what most organisations have — managers improvising through HR decisions with predictable error rates. The improvisation costs more than the training does.