Signs of a toxic work environment

Toxic is used loosely, usually to mean a workplace someone hated. It has a more useful definition than that. A workplace is toxic when its unwritten rules reliably damage the people inside it, and when those rules survive changes of staff.

That last part is the test. A single difficult manager is a problem. A place where three consecutive people in the same seat all became anxious and left is a culture. The behaviour is being produced by the environment, not by the individuals passing through it.

These are ordered roughly by how early they appear. The first few show up in your first month. The last few are what people describe on the way out.

1. 1

   People leave, and nobody asks why

   Turnover is high and exit interviews either do not happen or change nothing.

2. 2

   Speaking up has a cost

   Questions in meetings are met with irritation, and everyone waits to see what the senior person thinks first.

3. 3

   Mistakes produce blame, not learning

   The first question after something goes wrong is who, not what and why.

4. 4

   Information is currency

   People hoard what they know, because knowing something others do not is how you stay safe.

5. 5

   Cliques and favouritism

   Access, opportunity and forgiveness depend on who likes you rather than what you do.

6. 6

   Overwork is a badge of honour

   Late nights are praised, leave is quietly discouraged, and rest is treated as a lack of commitment.

7. 7

   Stated values do not match behaviour

   The values are on the wall and contradicted in the corridor, and everyone can name the contradiction.

8. 8

   Gossip is the main channel

   You learn about decisions affecting you through rumour, sometimes weeks before anything official.

9. 9

   Bullying goes unchallenged

   Everybody knows who the problem is, and the answer is always that it is just how they are.

10. 10

    Wellbeing is a poster, not a practice

    Yoga apps and resilience training offered in place of workload change.

11. 11

    Sunday night dread

    A physical drop in mood before the working week that is shared by most of the team.

12. 12

    People stop trying

    The most capable people quietly reduce their effort, because effort has stopped being rewarded or noticed.

Amy Edmondson's research at Harvard gave us the most useful single measure of workplace culture: psychological safety, meaning a shared belief that you can speak up, disagree, admit a mistake or ask a question without being punished or humiliated for it.

It is not comfort, and it is not niceness. Some of the most psychologically safe teams argue hard. The difference is that the argument is about the work, and nobody pays a personal price for having been wrong.

The worst version of this decision is the one made at eleven at night after a bad day. Give it structure instead. Set a review window of four to eight weeks, decide in advance what would count as change, and prepare your exit in parallel so that staying remains a choice rather than a trap.

If you are being personally targeted rather than generally worn down, read our guide on what workplace bullying looks like, and the UK rights guide for where the law does and does not protect you.