Every organisation has two sets of rules: the ones written in handbooks and job descriptions, and the ones that actually govern how things work. The unwritten rules determine whose input gets taken seriously in meetings, which decisions require informal sign-off before a formal one, how disagreements are expressed, and what behaviours actually lead to advancement. Learning them quickly is one of the most valuable things a professional can do in any new role.
Why Unwritten Rules Are Rarely Explained
Most unwritten rules are invisible to the people who follow them because they have internalised them over years. Senior colleagues rarely notice their own cultural assumptions, which means asking directly often produces incomplete answers. The rules have to be observed more than explained.
How to Learn Them
- Watch who gets heard — notice which people’s ideas get picked up in meetings and which get passed over. Is it about seniority, the way ideas are framed, or something else?
- Notice how decisions actually happen — in many organisations, the real decision is made in a conversation before the formal meeting. Learn where these conversations happen and who is in them.
- Pay attention to how feedback flows — is direct feedback welcomed, or is it given indirectly and diplomatically? The answer changes how you should communicate disagreement.
- Track what gets rewarded — the people who are promoted, recognised, and given visible opportunities signal what the organisation actually values, regardless of what it says it values.
Using a Mentor to Decode the Culture
A mentor who knows the organisation well can save you months of observation. They can name the patterns directly, warn you about common mistakes, and help you calibrate your behaviour before you inadvertently violate a cultural norm that damages your reputation. This is especially valuable when joining a new organisation or moving into a more senior role where the unwritten rules shift significantly.
Navigating Without Losing Yourself
Learning unwritten rules does not mean conforming to all of them. Some reflect the best of an organisation’s culture. Others reflect habits that no longer serve the team and can be constructively challenged. Knowing the difference — and having the standing to act on it — comes from having first demonstrated that you understand and respect what exists.