Tacit Knowledge in Organizations: A Complete Guide to Transferring Expertise (2026)

What is tacit knowledge and how do you capture it? Read the research, real examples, and why internal mentoring is the most effective way to manage your organization's invisible capital.

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Tacit knowledge: your organization's invisible capital

Your organization's most valuable competitive advantage isn't found in a strategy document, an IT system, or a patent registry. It lives in people's heads: layers of experience, intuition, situational awareness, and expertise that are nearly impossible to write down.

Picture this: your most experienced project manager, who has steered the company through dozens of crises over 30 years, walks out the office door for the last time to retire. They leave behind a tidy desk, carefully filled-out reports, and a complete archive of project documentation.

On paper, everything looks fine. But a few weeks later, the new team finds itself in trouble. They have the process diagrams, but they're missing that indescribable "feel" that let their experienced colleague sense when a client was unhappy before they said a word, or know how to solve a technical problem through intuition that isn't written in any manual.

In this guide, we'll cover what tacit knowledge means, how it shows up in everyday organizational life, and what happens when it disappears. And, above all, how you can make sure it gets passed on.

Defining tacit knowledge

Tacit knowledge is a concept that refers to knowledge that's difficult to put into words, write down, or convey through formal training. It was popularized by philosopher and researcher Michael Polanyi in his 1966 book The Tacit Dimension. His famous line captures the essence of it:

"We know more than we can tell."

Michael Polanyi, The Tacit Dimension (1966)

Tacit knowledge is tied to an individual's experiences, values, emotions, and context. Unlike explicit knowledge (such as manuals, databases, and rules), which is easy to transfer and share, tacit knowledge lives in a person's brain, hands, and intuition.

Attribute Tacit knowledge Explicit knowledge
Nature Experience-based, intuitive Formal, documented
How it transfers Personal interaction Documents, guides, training
Example A salesperson's situational instinct with a customer Sales playbooks and CRM processes
When it disappears Disappears when the person leaves Stays in the system
Copyability Very difficult to copy Easy to duplicate

Tacit knowledge in the workplace

In the workplace, tacit knowledge is the differentiator that turns an expert into a top performer. It's not just about knowing facts; it's the ability to apply them in complex, changing situations.

The role of intuition and experience

When an experienced salesperson senses in a negotiation exactly when to back off or when to push harder, they're using tacit knowledge. They may not be able to explain precisely which gestures or tone of voice their decision was based on; it's "game sense" built up over years.

Problem-solving and innovation

The best innovations often come from tacit knowledge. Employees find "unofficial" ways to fix processes that don't work on paper. An organization that focuses only on official procedures loses these grassroots-level improvements.

Tacit knowledge in the organization

At the organizational level, tacit knowledge forms the core of a company's culture. It's "the way we do things around here."

Competitive advantage and differentiation

According to the Resource-Based View (RBV) theory, a resource that is valuable, rare, and hard to imitate creates a lasting competitive advantage. Explicit knowledge is easy to copy: a competitor can read your annual report or buy the same software. But a competitor can't copy the collaborative skill, intuitive customer understanding, or team chemistry you've built up over ten years.

Risk management: retirement and turnover

The biggest risk to an organization is "brain drain." When employees change jobs or retire, they take a huge amount of organizational know-how and valuable relationships with them. If tacit knowledge hasn't been systematically shared, the organization has to "reinvent the wheel" every time a key person leaves.

Research on tacit knowledge

Tacit knowledge has been studied extensively in both business and psychology.

  • Productivity and social technologies: In a large-scale study, the McKinsey Global Institute found that using social technologies and better collaboration practices could raise knowledge worker productivity by 20-25%. Sharing tacit knowledge is one part of this broader communication and collaboration potential, so the figure shouldn't be read as a direct measure of tacit knowledge transfer alone. Nordic Mentor's internal mentoring platform is a good example of this kind of social technology.
    Source: McKinsey Global Institute (2012). The social economy: Unlocking value and productivity through social technologies.
  • Transferring expertise (Deep Smarts): Harvard Business Review's article "Deep Smarts" highlights that experienced leaders' critical expertise runs so deep that transferring it requires long-term mentoring and observation, not just documentation.
    Source: Leonard, D., & Swap, W. (2004). Deep Smarts. Harvard Business Review.
  • Finnish research on tacit knowledge: Finnish researcher Inkeri Virtainlahti has studied the transfer of tacit knowledge in expert organizations and emphasized that interaction and trust are essential conditions for knowledge to be transferred.
    Source: Virtainlahti, I. (2009). Hiljaisen tietämyksen johtaminen [Managing Tacit Knowledge]. Talentum.

How do you identify your organization's critical tacit knowledge?

Not all tacit knowledge is equally valuable to the business. What matters is identifying the expertise whose loss would affect customers, productivity, quality, safety, or decision-making.

An organization can start identifying it with four questions:

Question What it's looking for
Whose absence would be felt quickly in day-to-day operations? Key-person risk
Which topics do colleagues always ask the same person about? Informal expertise
Which tasks are hard to learn from documentation alone? Experience-based skill
Where are mistakes especially costly or slow to fix? Business-critical knowledge

Tacit knowledge risk matrix: high business impact + held by very few people = transfer this first.

What tacit knowledge is not

Tacit knowledge doesn't mean all of an employee's expertise. Tacit knowledge ≠ undocumented information: if, for example, a customer list was never entered into the CRM, that's not necessarily tacit knowledge; it's explicit knowledge that could have been documented but simply wasn't.

By contrast, a statement like "I know from experience that this customer needs to see this before we talk price" is much closer to genuine tacit knowledge: it can't simply be written down and handed off as-is.

Situation Is this tacit knowledge?
A customer's phone number exists only in one employee's memory No, it can be documented
A salesperson senses a customer's hesitation before they object Yes
A project's process documentation is missing Not necessarily
A project manager knows from experience where projects typically go wrong Yes
A piece of software's user manual No
An experienced developer's intuition about which change will cause problems Yes

Tacit knowledge in practice: three examples

What does tacit knowledge actually look like? Here are three examples from different fields:

1

The customer service star

A hotel receptionist can read a guest's body language and tell when they need extra rest or when they're looking for attention. That kind of social intelligence and situational awareness is impossible to write into a customer service manual. It only transfers when a new employee shadows an experienced colleague for weeks.

2

The IT architect and the legacy code

A company has a critical system built ten years ago. New developers look at the code and want to modernize it. The senior developer, who's been there since the beginning, says: "don't touch that line, it crashes the whole database during peak hours." They may not remember the exact reason, but they hold tacit knowledge from past failures that saves the company thousands of euros.

3

The surgeon in the operating room

A young surgeon has read every textbook and knows anatomy inside out. But during surgery, they encounter unexpected bleeding. The experienced senior surgeon notices and applies pressure to the tissue in a very specific way. They may not be able to explain exactly why that pressure and angle work; it's tacit knowledge built from hundreds of similar situations, held quite literally "in their fingertips."

How does tacit knowledge transfer?

Tacit knowledge can transfer within an organization in many ways, for example:

  • mentoring
  • job shadowing
  • pair work
  • the master-apprentice model
  • retrospectives
  • case discussions
  • job rotation
  • communities of practice
  • storytelling

The advantage of mentoring is that it turns these methods into a goal-oriented, continuous process, even in a large organization.

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What are the benefits of internal mentoring for the tacit knowledge problem?

Because tacit knowledge can't be stored in a database, transferring it requires a relationship between people. An internal mentoring program is one of the most effective ways to prevent tacit knowledge from disappearing.

1. Learning by doing together

When a mentor and a mentee work together, share experiences, and think through difficult situations, tacit knowledge starts to "leak" from mentor to mentee. This happens through stories, examples, and doing the work side by side.

2. Learning in real work situations

Unlike external training, mentoring happens inside the organization. Knowledge transfers in exactly the context where it's needed. A mentee doesn't just learn "how to run a project"; they learn "how to run a project at this company, with our clients."

3. Psychological safety and trust

Sharing tacit knowledge requires trust. A mentor often reveals their own mistakes and uncertainties when explaining how they learned. An internal mentoring program builds a culture where sharing expertise is seen as a shared benefit, not a personal risk.

4. Cost-effectiveness

Internal mentoring can be a cost-effective way to build skills compared to external experts. It puts existing "capital" (your employees' knowledge) to work and delivers better results, because the knowledge is context-specific.

5. Ensuring continuity

Mentoring is a useful tool for succession planning. When a potential new leader is mentored by the current one, the transition is far smoother. Tacit knowledge about networks and decision-making processes doesn't break when a person changes roles.

Read more about internal mentoring in our internal mentoring guide.

How do you measure tacit knowledge transfer?

Tacit knowledge transfer is hard to measure directly in monetary terms, but it can be tracked at three levels: mentoring activity, skill development, and ultimately business impact.

1

Activity metrics

Number of mentoring pairs formed, number of meetings held, share of active participants, and program completion rate.

2

Learning metrics

Self-assessed skill levels before and after, goal achievement, and the ability to handle a task without senior support.

3

Business metrics

Shorter onboarding time, fewer errors, reduced dependence on key people, more internal transitions, lower employee turnover, and time-to-productivity.

Business impact
Skill development
Mentoring activity

Tacit knowledge and AI: can a machine replace a mentor?

By 2026, AI is part of every fast-moving organization. LLMs (like ChatGPT) are excellent at handling explicit knowledge. They can read every report your company has and summarize it in seconds.

But AI has a "tacit knowledge gap." Generative AI can process information effectively when that information is available to it as data. The challenge arises when an expert's knowledge has never been expressed, documented, or otherwise made available to the system. In that case, AI simply can't know what an experienced employee recognizes through intuition, experience, and context. It also doesn't know your company's internal politics, and it can't read the room the way a person can.

That's why AI's most valuable role in managing tacit knowledge may not be to replace the expert, but to help find the right people for each other, structure learning goals, and make knowledge transfer systematic.

Mentoring and AI complement each other:

  • AI handles the analysis, routine work, and finding the right people for each other.
  • The mentor is responsible for passing on tacit knowledge, values, and wisdom.

The 60-second tacit knowledge risk test

Is your organization at risk of losing tacit knowledge? Check the statements that are true for your organization.

Check the statements above to see your risk level.

See how internal mentoring can be automated in your organization
Transferring tacit knowledge

How do you get started with transferring tacit knowledge?

If your organization doesn't yet have a systematic way to manage tacit knowledge, start with these steps:

1. Launch an internal mentoring program

You can use, for example, Nordic Mentor's scalable internal mentoring platform.

2. Identify critical knowledge

Who are the people whose departure would bring things to a halt? What do they know that isn't written down anywhere?

3. Make time for conversations

Tacit knowledge doesn't transfer under time pressure. Set aside real time for mentors and mentees to have in-depth conversations.

4. Encourage storytelling

Reports tell you the numbers; stories tell you the truth. Create forums where experienced employees can share their "war stories" as a way of teaching.

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Frequently asked questions about tacit knowledge

No. That's the nature of tacit knowledge. You can document the process, but not the intuition and experience that helps someone apply it in difficult situations. That's why mentoring is essential.

It's often driven by fear: "if I teach everyone else, I won't be needed anymore." Organizations need to build a culture where sharing expertise is rewarded and seen as a mark of seniority, not a threat.

Not necessarily. Sometimes tacit knowledge can be outdated beliefs or bad habits ("we've always done it this way"). That's why mentoring is a two-way process, where the mentee can also challenge old patterns.

Tacit knowledge is knowledge rooted in experience that's often hard to put precisely into words, instructions, or documents. It shows up, for example, in how an experienced expert quickly recognizes a customer's need, anticipates a problem, or knows from experience how to handle a difficult situation.

Information can mean individual facts and instructions that can easily be recorded and shared with others, while a skill is the ability to apply information in practice. Tacit knowledge is often part of that skill, but it's built specifically on experience, situational awareness, intuition, and hands-on practice.

For example, a company's sales playbook can describe how the sales process unfolds. An experienced salesperson, however, may know from experience when a customer isn't yet ready to discuss price, what approach works with a particular client, or when to steer the conversation in a different direction. That's typical tacit knowledge.

Tacit knowledge transfers best through interaction, where an experienced employee shares their experience and another employee gets to apply it in practice. Mentoring, job shadowing, working together, discussions, and working through real-life situations are all effective ways to make experience-based skills visible.

Documentation alone often isn't enough, because so much experience-based skill is hard to write down as instructions. That's why, when transferring tacit knowledge, it's important to create situations where an expert can explain why they act a certain way, what they pay attention to, and what they've learned from experience.

A goal-oriented internal mentoring program provides the structure for this. The right people are paired up, goals are set for the mentoring, and conversations can be guided with ready-made agendas. That way, knowledge transfer doesn't depend on random coffee chats or a handful of proactive employees.

Preserving tacit knowledge should start before a critical expert leaves the organization. The first step is to identify what part of their expertise matters to the organization and where other employees depend on their experience.

Next, that expertise can be transferred systematically to others, for example through mentoring, pair work, job shadowing, and working through real customer cases. At the same time, the most important lessons can be turned into documented knowledge, such as guidelines, playbooks, and case examples.

From the organization's perspective, the goal isn't just to document the retiring employee's knowledge, but to make sure that expertise transfers to people who can put it to use going forward. That way, the organization's critical expertise doesn't rest on one person.

Yes, but not all tacit knowledge can be fully transferred through documentation. Some of it can be made visible by writing up ways of working, the reasoning behind decisions, experiences, case examples, and proven practices.

The challenge is that an experienced expert may not even be fully aware of everything they know. They might make a decision quickly without being able to immediately explain every factor behind it.

That's why documentation works best alongside interaction. In a mentoring conversation, you can ask why a certain decision was made, what alternatives were considered, what was learned from the situation, and what a new employee should pay attention to in a similar case.

The goal of documentation doesn't have to be turning all tacit knowledge into a manual. What matters more is making the organization's critical expertise visible and getting it into the hands of as many people as possible who need it.

AI itself can't know experience-based expertise that an organization has never made available to it. AI's role in transferring tacit knowledge is, above all, to help make that transfer systematic and scalable.

AI can be used, for example, to find the right mentoring pairs, match employees' skills with development needs, define mentoring goals, and create meeting agendas. It can also help identify what expertise is worth sharing across the organization and what conversations are worth having in a mentoring relationship.

At Nordic Mentor, AI is used specifically to automate the mentoring process. It helps form the right mentoring pairs and create goals and agendas that keep conversations purposeful.

AI isn't meant to replace an experienced expert's experience. Its purpose is to help the organization find the right people for each other and turn tacit knowledge transfer into a continuous, goal-oriented, and measurable process.

Yes, and it's often critical for them. In a small company, losing even one key person's tacit knowledge can be devastating. Small mentoring programs (under 15 participants) don't need external tools, you can manage well with manual processes.