Perhaps you rehearse simple questions before approaching your manager. Maybe you leave meetings unsure whether you received useful feedback or were simply insulted. Or you keep thinking, “If I could just do everything perfectly, things would get better.”
These experiences deserve attention. But how can you tell whether you’re dealing with harmful management, a difficult working relationship, or an uncomfortable situation that can improve?
Start with observable behavior.
What is a toxic boss?
“Toxic boss” is an informal description of a manager whose behavior creates a persistently harmful working environment. It describes how someone manages people; it is not a mental health diagnosis.
The behavior might be obvious, such as shouting or personal insults. It can also be subtle: withholding information, undermining someone’s credibility, or making it risky to ask for help.
Workplace bullying is one possible part of this pattern. Acas describes bullying as behavior that intimidates, humiliates, or misuses power. It can happen in meetings, emails, calls, or other work-related settings, and someone does not have to intend harm for their behavior to be bullying. Acas guidance on workplace bullying
You do not need to establish your boss’s motives to describe what happened and ask for it to change.
What are the signs of a toxic boss?
The following signs are reasons to look more closely, rather than a scoring system that can definitively label your manager.
1. Their criticism becomes personal or humiliating
Useful feedback identifies a problem and helps you understand what to do next. Harmful criticism attacks your intelligence, character, or worth.
Compare these statements:
- Constructive: “The proposal needs a clearer budget. Please add the cost breakdown before Friday.”
- Humiliating: “You clearly don’t understand basic business. I don’t know why I gave you this.”
Public ridicule, persistent put-downs, and verbal abuse are recognized forms of workplace mistreatment. CIPD guidance on bullying and workplace conflict
Notice whether you leave a feedback conversation knowing how to improve—or mainly feeling ashamed.
2. Expectations keep changing without acknowledgment
Priorities change in most workplaces. The concern is whether your manager explains those changes and adjusts expectations fairly.
For example, your boss approves a short presentation, then criticizes you for omitting detail they specifically asked you to remove. When you refer to the original direction, they refuse to acknowledge it.
Repeatedly changing instructions can make success difficult to define. Constantly shifting guidelines and impossible deadlines appear among the Canadian Centre for Occupational Health and Safety’s examples of workplace bullying. CCOHS guidance
3. You cannot get the information you need to succeed
Your manager leaves you out of a necessary discussion, withholds a decision, or fails to provide access—then blames you for the resulting delay.
An occasional missed invitation may be a mistake. Repeated exclusion becomes more concerning when you have explained what you need and the same problem continues.
Healthy workplace relationships include sharing information relevant to people’s work and providing ways to raise concerns. HSE management standards
4. Speaking up comes with a penalty
Consider what happens when you ask a reasonable question, disagree respectfully, or flag a risk.
Does your boss discuss the issue? Or do they mock you, threaten your standing, or suggest that asking questions shows disloyalty?
Imagine saying, “We may miss the deadline unless we reduce the scope,” and hearing, “Maybe we need someone more committed in your role.”
A repeated response like this gives you a reason to stay silent, even when speaking up would help the team.
5. Accountability only travels downward
Your boss claims ownership of successful work but distances themselves from decisions that go badly.
For example, they instruct you to prioritize one customer, then blame you when another customer’s deadline slips—without acknowledging the tradeoff they approved.
One disagreement about responsibility may be resolvable. A recurring refusal to acknowledge their own decisions makes it harder to trust the working relationship.
A useful question is: Can my manager admit a mistake without making someone else pay for it?
6. Standards depend on who you are
Different responsibilities can justify different expectations. Favoritism becomes a concern when comparable situations receive different treatment without a credible explanation.
One employee repeatedly misses deadlines without discussion, while another faces personal criticism for a minor delay. Opportunities go to favored colleagues, but the selection criteria remain unclear.
CIPD advises managers to treat employees fairly and avoid favoritism because unequal treatment can damage trust and contribute to conflict. CIPD guidance on fair management
7. Attempts to resolve problems lead nowhere
A manager’s response to a concern can tell you as much as the original incident.
Someone who made a mistake may listen, clarify, apologize, and change their behavior. A more troubling pattern is repeated dismissal: “You’re too sensitive,” “That never happened,” or “Nobody else has a problem with me.”
An apology matters most when the behavior changes afterward. Pay attention to what happens in the next meeting, the next disagreement, and the next deadline.