Key person risk is the amount of revenue that stops moving when one person — usually you — is unavailable. For most founders it is invisible until it is expensive. You can measure it in about an hour with a drill I call the Two-Week Absence Test, and once you have the number you can decide what to do about it instead of just feeling vaguely nervous about it.
The drill is simple: list everything that would halt if you were out for two weeks, estimate the annual revenue exposed on each item, estimate how likely your absence is in the next twelve months, multiply, and add it up. That total is your key person risk exposure. It is not a perfect number. It is a useful one, because it converts a background dread into a prioritised list you can act on.
Key takeaways
- Key person risk is calculated per function as annual revenue exposed multiplied by the probability of your absence in the next 12 months, then summed across all functions.
- The list is built by asking one question of every task, decision, and client relationship: would this stop if I were gone for two weeks?
- Most founders find their exposure concentrated in a small number of functions — usually client relationships, approvals, and the one thing only they know how to do.
- The 30-day plan reduces exposure in one of three ways per item: document it, delegate it, or automate it.
Why this drill beats a gut feeling
Almost every founder knows, in an abstract way, that the business leans on them too hard. That knowledge does nothing. It sits in the same mental drawer as "I should exercise more." The Two-Week Absence Test moves it out of the drawer because it forces two specific estimates per function: what would it cost, and how likely is it to happen.
Both estimates are rough. That is fine. You are not producing an audited figure; you are producing a ranking. A ranking is all you need to decide where the next thirty days of attention go.
Step one: build the exposure list
Take a blank page and write three column headings: Task or Relationship, Revenue at Risk (annual), Probability in 12 Months. Then work through the business in four passes.
Pass one — recurring tasks. Everything you personally do each week that produces or protects revenue. Invoicing. The weekly report the biggest client expects. Approving spend. Hiring decisions.
Pass two — decisions only you can make. Pricing exceptions, refunds, contract terms, scope changes, whether to take on a new client. If a decision queues up behind you, it is an exposure.
Pass three — client and supplier relationships. Which accounts only take calls from you? Which supplier will only extend terms to you? Relationships are the most under-listed category and often the most expensive.
Pass four — the invisible one. What do you know that is not written down anywhere? The login, the workaround, the sequence for closing the month, the reason the integration must be run in a certain order. If your absence would require a phone call to you, that knowledge is an exposure.
Be honest. The drill only works if the inputs are real.
Step two: score each line
For each item, estimate the annual revenue that would be delayed, lost, or put at risk if the item stopped for two weeks. Two weeks of a retainer is not the whole retainer — but a client who has a bad two weeks may leave, so think in terms of what is actually exposed, not just what is deferred.
Then assign a probability that you will be meaningfully unavailable in the next twelve months. Not hospital-level absence — any absence. A week of flu. A family emergency. A stretch where you are travelling or heads-down on a launch. People systematically underestimate this one.
Multiply the two figures. That is the expected annual loss for the line. Add the lines together and you have your total key person risk exposure.
Step three: read the shape of the number
The total matters less than its distribution. Three patterns show up again and again.
| What you see in the register | What it usually means | What to do first |
|---|---|---|
| One item dominates the total | A single relationship or approval is carrying the business | Document the decision rules and name a deputy this month |
| Exposure spread across many small tasks | Death by a thousand handoffs, not one big dependency | Automate or eliminate the lowest-value items in bulk |
| High probability, low revenue per item | Absence is likely but individually cheap | Batch these into one documented weekly routine |
| Low probability, enormous revenue per item | Rare but catastrophic concentration | Treat as your top risk regardless of the maths |
If the last row describes your business, act on it even though the expected-loss number is small. Probability weighting flatters rare catastrophes.
A worked example: the solo consultant
A solo consultant with three retainer clients and a small subcontractor bench runs the drill. The register comes out something like this: the largest retainer relationship, where the client only deals with the consultant, carries the highest revenue exposure. Weekly delivery and reporting for all three clients sits next in line. Invoicing and chasing payments is smaller in revenue terms but carries a high probability of being missed. The proposal pipeline is mid-sized and highly likely to stall. Admin and scheduling is low value but certain to break.
When the numbers are multiplied and summed, two things typically become obvious. First, the relationship exposure dwarfs the admin exposure — yet admin is where founders spend their tidying-up energy. Second, the proposal pipeline is where the real annual loss hides, because a stall there does not show up as a bad week; it shows up as a thin quarter three months later.
The consultant's 30-day plan writes itself: introduce the largest client to a second contact and document the decision rules for that account; templatise the weekly report so a subcontractor can produce it; automate invoicing reminders; and write a one-page pipeline checklist that anyone can run for two weeks.
Step four: connect it to your chaos tax
Your key person risk exposure is one component of a larger number: the annual cost of running everything through you. Manual work, decision fatigue, urgent problems, missed revenue, and tools you pay for and do not use all stack on top of the single-point-of-failure risk you just calculated.
The free five-step diagnostic at tools.exiuss.com/radar takes six inputs and breaks your chaos tax down by category — weekly chaos cost, urgent problems, missed revenue, and wasted tools. Plug your key person risk figure in alongside those and you can see how much of your total cost is pure concentration risk rather than ordinary inefficiency. That distinction matters, because the fixes are different. Inefficiency wants a better process. Concentration wants a second person who knows the process.
The 30-day plan to cut your top three
Pick the three highest lines from your register. Do not pick more than three. For each one, choose one of three moves.
Document it. Write the decision rules, not just the steps. A checklist that says "approve refunds under this threshold, escalate above it" transfers judgement, which is the part that actually stops when you leave.
Delegate it. Name a specific person and a specific date. A deputy who has never done the task while you watched is not a deputy.
Automate it. Recurring reminders, scheduled reports, templated proposals, saved payment links. Automate the items with high probability and low revenue per item — that is where automation pays for itself fastest.
Then re-run the drill at day thirty. The number should move. If it has not moved, you documented things nobody needed and skipped the one that mattered.
Quick checklist
- List every task, decision, and relationship that would halt in a two-week absence
- Estimate annual revenue exposed per line, and your probability of absence in the next 12 months
- Multiply, sum, and rank — then sanity-check for the rare catastrophic item
- Pick the top three and assign each one a document, delegate, or automate action with a date
- Run your exposure figure through the free calculator at tools.exiuss.com/radar
- Re-run the drill at day thirty and compare the total
The Chaos Tax stops when you can see it. Start with the two-week question.