Stop us if you’ve been here before.
Someone shows you a chart of a mountain that keeps going up — your portfolio balance at 65 and its trajectory over the next 20 to 30 years.
It’s beautiful, it’s green, and it never ends. The problem is they’ve put you on a financial treadmill and hidden the “Stop” button. Traditional advisory is great at telling you how to run faster; it’s terrible at telling you that you’ve already crossed the finish line.
What they’re less likely to show you is your financial independence number. For most people who’ve spent decades saving and investing, it’s a nebulous figure they’ve never seen.
The guiding principle of the traditional advisory model is to grow your wealth. But it isn’t equipped to tell you when you’ve grown enough.
What Is Financial Independence?
Financial independence is one of those terms that means something slightly different depending on who’s using it. In personal finance circles, it’s commonly associated with the FIRE movement (Financial Independence, Retire Early) and the particular discipline of aggressive saving and frugal living. That’s an admirable path to early retirement. It’s just not the only one, and it’s not the definition that matters here.
For the purposes of this post, and for the clients Maslow works with, financial independence is more specific: the point at which your investment portfolio generates enough to fund your lifestyle indefinitely, without obligating you to work, and without drawing down the principal that makes it possible.
Two distinctions worth making explicitly.
Financial independence is not the same as traditional retirement. A financially independent person who chooses to keep working is making a choice. Some of the most engaged, productive people we know reached financial independence years before they considered slowing down.
Financial independence is also not the same as a high net worth. Significant assets don’t automatically translate into a self-funding financial life — especially if those assets are concentrated in a single position, tied up in illiquid investments, or generating insufficient income relative to lifestyle costs.
Net worth is a snapshot. Financial independence is a structural condition. Having a high net worth without an FI number is like having a massive fuel tank but no fuel gauge. You might have enough to get to London, or you might run out of gas over the Atlantic. Without the number, you’re just flying on hope.
How to Calculate Your Number
Financial independence is often treated as some abstract, incalculable state of being — rather than a specific amount of money working toward a defined financial goal.
But it’s actually a straightforward formula. What makes it difficult is that most people have never been asked to define the inputs.
There are three.
Your required lifestyle cost. This is the annual spending necessary to sustain your non-negotiable standard of living — housing, healthcare, food, transportation, core obligations. Not what you’d like to spend, what you need to spend for your life to function. This is your floor, and your financial independence number must clear it unconditionally.
Your desired lifestyle cost. This is the annual spending that funds the life you want to live — travel, experiences, generosity, the things that make financial independence worth having in the first place. Most financial plans treat this as a luxury variable, something to model optimistically and revise downward if necessary. It shouldn’t be.
Your time horizon. This is where many models distort reality. Life expectancy assumptions are consistently underestimated — a 65-year-old couple today has a reasonable probability that one of them lives past 90. Planning to 85 when you live to 95 is a major miscalculation with real consequences. Your financial independence number should assume a longer horizon than feels comfortable, with inflation compounding throughout, because your living expenses in thirty years won’t resemble today’s levels.
Once those three inputs are defined, the calculation works backward. If your desired lifestyle costs $200,000 annually, and you need that income to be sustainable for forty years with inflation, what portfolio value produces it reliably?
That’s your financial independence number.
Healthcare costs deserve specific mention here. For individuals retiring before 65, the period between leaving full-time work and Medicare eligibility represents a material and frequently underestimated planning gap.
The 4% Rule: Useful Shorthand, Problematic Ceiling
If you’ve spent any time researching retirement planning, you’ve encountered the 4% rule. It’s perhaps the most widely cited framework in personal finance for answering the question: how much can I withdraw from my portfolio each year without running out of money?
The rule originated with financial planner William Bengen in 1994. Analyzing historical investment returns, Bengen determined that a retiree withdrawing 4% of their portfolio annually (adjusted for inflation each year) had a high probability of their money lasting 30 years across even the worst historical market sequences. It was a meaningful contribution to retirement planning, and for a general audience working with a straightforward asset mix and a conventional retirement age, it remains a reasonable starting point.
The rule of 25 follows directly from it: if you need $100,000 annually, the rule suggests you need $2.5 million in investable assets to be financially independent. Multiply your annual expenses by 25, and you have your number. Clean, memorable, and easy to apply.
The problem is that the 4% rule was intended for a different investor than the one reading this.
Bengen’s original research assumed a 30-year retirement horizon — reasonable in 1994, increasingly conservative today. For someone retiring at 58, a 30-year model runs out at 88. That’s not a planning horizon. That’s a best-case scenario. A financial independence number should assume 35 to 40 years as a baseline, which significantly changes the math.
The rule also assumes relatively linear spending — consistent annual withdrawals adjusted for inflation. Actual retirement spending rarely works that way. The first decade tends to be the most active and most expensive, healthcare costs escalate nonlinearly as clients age, and legacy or philanthropic goals add spending layers that a flat withdrawal rate doesn’t capture.
And for people with more complex financial lives, such as multiple income streams, business interests, significant real estate, family support obligations, and philanthropic structures, a single withdrawal rate applied to a single portfolio number is a short-sighted approximation.
The 4% rule answers a useful question: given a generic portfolio, what’s a safe withdrawal rate? Your financial independence number answers a different one: given your specific life, your specific cost of living, and your specific time horizon, what does self-funding actually entail?
Why Don’t All Firms Give You This Number?
If your financial freedom is calculable — and it is — the obvious question is why do many people who’ve spent decades working with financial advisors never see it?
Traditional advisory isn’t structured to answer it.
A portfolio-centric relationship is built to answer a certain set of questions: how is your money allocated, how has it performed, and how does that compare to a benchmark? These are legitimate questions. They’re just hyper-specific to your portfolio versus your broader life.
Is your financial life structurally self-funding?
At what portfolio value does work become optional for you?
Are you there yet?
Producing a financial independence number calls for a complete picture of your lifestyle costs, both needed and desired, mapped against a realistic time horizon and a portfolio structure constructed to fund it perpetually. That’s a goal-based exercise, not a portfolio-based one. And most advisory relationships are organized around the latter.
There’s a subtler dynamic worth discussing as well. A financial model built to grow assets indefinitely is often missing a natural mechanism for telling a client they’ve reached their goal. The growth imperative is embedded in how most advisory relationships are structured and compensated. Telling a client their portfolio has crossed the financial independence threshold is, in some models, telling them the primary duty is done — which creates an awkward conversation that portfolio-centric relationships aren’t necessarily keen to have.
The traditional model produces what it was designed to produce: well-managed portfolios. Financial independence modeling starts with your life and works backward to the number, rather than starting with the number and working forward to a chart.
What Changes When You Know Your Number
Your financial independence number is a lens through which every financial decision should be assessed.
Before you know it, financial decisions exist in a kind of interpretive vacuum. Is this the right year to take on a larger mortgage? Should I accelerate IRA contributions or invest in my business? How much can I give without compromising what we’ve built? The answers are approximations, guided by general principles and educated intuition.
Once you know it, the same questions have a reference point. Every retirement savings decision maps to a number you’re building toward. Every spending decision can be evaluated against a foundation you know is intact. Every opportunistic investment — a private deal, a concentrated bet, a real estate position — can be sized against capital you’ve confirmed you can afford to put at risk.
And if you’ve already crossed the threshold without knowing it, the number does something monumental: it grants permission. Knowing your number, and knowing you’ve reached it, changes the emotional experience of wealth.
For many of the clients we work with, it’s the most valuable output of the entire financial planning process.
At Maslow, calculating your financial independence number is step one — not a milestone we work toward after years of relationship building. If you’ve never been given yours, we’d be happy to talk.