My protagonist track did not start with a spreadsheet in 2023 when I finally left corporate. It started more than twenty years earlier, in moves I made from curiosity rather than strategy. A side project here. A business idea tested there. A slow, deliberate accumulation of assets and expertise that had nothing to do with my day job title and everything to do with what I wanted to own when the day job ended.
That distinction matters, because the most common question I get from senior executives is some version of: "Am I too late?" And the answer depends entirely on which runway you are standing on.
This is not about quitting
Let me be direct about something before we go further. Quitting is an event that takes five minutes with HR. What I teach is completely different. It is the decision to redesign how you earn, how you spend your time, and who benefits from your expertise, and to do it while you still have the resources and credibility to do it well.
Paul Millerd, who wrote about his own transition out of corporate consulting, said he had no master plan to quit. That resonates with me. There was no dramatic moment, no storming out with a cardboard box. There was a process that unfolded over years, built on small choices that compounded into something much larger than any single resignation letter could represent.
So when I talk about planning your exit at 40 versus 55, I am not comparing two versions of "hand in your notice." I am comparing two different starting positions for the same long-term project: building enough income-producing assets that your corporate salary becomes optional rather than essential.
The Three Runways
I use a framework called the Three Runways to help executives understand where they sit. Your runway determines your strategy, your timeline, and the kinds of risks you can afford to take. Getting this wrong is how capable people blow up perfectly good careers without anything to show for it on the other side.
Runway A: you are in your early 40s
If you are between 35 and 45, you have the single biggest advantage in this entire equation: time. You likely have 15 to 20 years of corporate earning ahead of you, which means compound interest is working enormously in your favour and you have room to recover from mistakes.
That does not mean you should be reckless. It means you can afford to build slowly and properly, because you are not trying to replace your income next quarter. You are building the foundation that will give you options in a decade.
What Runway A looks like in practice:
Your corporate salary covers your living costs, which means every dollar you put into asset-building is growth capital, not survival money. This is a massive structural advantage that people in their 40s consistently undervalue. You can test business ideas, build an audience, create digital products, and invest in income-producing assets without the pressure of needing any of them to pay your mortgage this month.
The risk at this stage is not financial. It is complacency. You tell yourself you have plenty of time, and then a decade passes and you have built nothing outside your employer's balance sheet. I have watched too many talented executives reach 55 with a strong CV, a healthy super balance, and zero independent income streams. Their expertise walked out the door with them every evening and walked back in every morning, and none of it belonged to them.
Practical priorities for Runway A:
- Calculate your freedom number and your monthly burn rate. Know the actual figure, not a vague sense that you "probably need a couple of million." The number grounds every decision that follows.
- Start building at least one asset that generates income independent of your employer. A digital product, a course, a consulting side practice, an investment portfolio that produces cash flow. The specific vehicle matters less than the habit of building something you own.
- Protect your health now. Corporate takes a physical toll that accumulates quietly over decades. Exercise, sleep, and stress management are not lifestyle choices at this stage. They are infrastructure for everything you want to build later.
- Build your personal brand alongside your corporate role. Publish, speak, create content. Your employer benefits from your visibility too, so this is not a conflict of interest. It is an investment in an asset that stays with you when you leave.
Runway B: you are in your mid-50s
If you are between 50 and 58, your position is different but not worse. You typically have a higher salary, more savings, a deeper professional network, and three decades of expertise that younger executives simply cannot match. What you have less of is time to let things compound.
This changes your strategy in a specific way. Where Runway A executives can afford to experiment broadly and let winners emerge over years, you need to convert existing expertise into income-producing assets more quickly. You are not starting from scratch. You are packaging what you already know and deploying the resources you have already accumulated.
What Runway B looks like in practice:
You probably have significant capital, whether in savings, superannuation, property, or a combination. You also have a professional reputation that took decades to build. The opportunity is to turn both of those into assets that produce income without requiring you to trade hours for dollars in a corporate structure.
The risk at this stage is urgency without strategy. I have seen executives in their mid-50s panic, quit too early, and burn through savings trying to build something from nothing when they could have spent 18 months building properly while their salary was still coming in. Most people fail to escape not because they lack ambition but because they lack the financial foundation to do so safely. Safety is everything.
Practical priorities for Runway B:
- Run your freedom number calculation with a shorter time horizon. If you want corporate to be optional within five years rather than fifteen, the maths changes and so does your required savings rate and asset income target.
- Focus your asset-building on areas where you already have deep authority. You do not have time to become an expert in something new. You need to monetise the expertise you have spent 25 to 30 years accumulating. Consulting, courses, books, speaking: these all convert existing knowledge into owned assets.
- Use your network aggressively. At this stage, your professional relationships are worth more than almost any other resource. Partnerships, referrals, client introductions, and co-ventures are all faster paths to revenue than building an audience from zero.
- Do not quit until your numbers work. I mean this literally. Run the spreadsheet. Know your monthly burn rate, your freedom number, and your projected asset income. If the gap is too large, keep your corporate role and build in parallel until the numbers close. There is no prize for leaving early and running out of money.
What both runways have in common
Whether you are 40 or 55, the underlying principle is identical. You are replacing dependency on a single income source with a portfolio of assets that produce income regardless of whether you have an employer. The timeline differs, the tactics differ, but the destination is the same: a position where your corporate salary is a choice, not a requirement.
Both runways also share the same enemy, and it is not your employer. It is dependency. Salary dependency, where 100% of your household income comes from one source. Identity dependency, where your sense of self is entirely wrapped up in your job title. And optionality dependency, where you have no viable alternative if your role disappears tomorrow.
AI is making this more urgent for both age groups, not less. Senior roles that seemed untouchable five years ago are being restructured, automated, or eliminated entirely. The executive who has built nothing outside their corporate role is in a genuinely vulnerable position regardless of how impressive their title looks on LinkedIn.
Why there is no single right timeline
I get asked constantly whether 40 is too early to start thinking about this or whether 55 is too late. Neither is true. The right time to start building assets outside your corporate career was ten years ago, and the second best time is today. That applies whether you are 38 or 57.
What I will not do is give you a fixed exit date. Anyone who tells you they can get you out of corporate in 90 days or six months is either lying or selling something that will leave you worse off. My protagonist track took more than twenty years. Some of the executives I work with build their runway in three to five years. Others take longer. The timeline depends on your financial position, your risk tolerance, your family situation, and how much you are willing to build while still working full-time.
The system builds the runway. When you choose to take off is entirely your decision.
The one thing I would tell both groups
If I could sit down with every senior executive reading this, regardless of age, I would say the same thing. Your corporate career built something valuable: expertise, credibility, leadership skills, financial resources, and a professional network. None of that is wasted, and none of it needs to be rejected. The question is whether you are going to convert those things into assets you own, or whether you are going to let them depreciate inside someone else's organisation until the day you are no longer useful to them.
That is not a criticism of corporate life. Thirty years in corporate built everything I have today. But depending entirely on a single income source with no assets underneath it is a vulnerable position, and it gets more vulnerable every year as AI reshapes the way companies operate.
The executives who do this well are the ones who start building before they need to, who treat their corporate role as a launchpad rather than a destination, and who make the shift from earning a salary to owning assets that earn for them.
Whether you are on Runway A or Runway B, the first step is the same: understand exactly where you stand right now.