It’s firstly maths, followed by mindset.
Or mindset first, then maths.
In this essay, I focus first on the maths/arithmetic part of it. Most people treat financial freedom like a feeling they’re waiting to arrive — a someday, a vibe, a number so large it stays abstract.
It isn’t a feeling.
It’s one equation, and you can do it on the back of a napkin right now.
You’re financially free at the point your passive income covers your expenses. That’s the whole definition. Everything else is just working out the number that gets you there:
Your annual expenses ÷ a safe withdrawal rate = the amount you need.
If your household runs on, say, S$72,000 a year and you assume a conservative 4% you can draw without eroding the base, then your number is 72,000 ÷ 0.04 = S$1.8 million.
That’s it.
No mystery.
A target you can write on a sticky note.
What changed, and what didn’t
I first ran this math in 2019, and I ran it two ways that I’d now correct.
I called it “early retirement.”
I don’t anymore — the goal was never to stop working, it was to stop being forced to work for money, which is a different thing. And I built the whole calculation on dividend stocks as the vehicle. I’ve since changed that too.
But notice what didn’t change: the equation.
Expenses ÷ safe rate = your number. That arithmetic is neutral to the vehicle and neutral to the goal. Whether you’re trying to escape a job or fund a calling, whether you hold dividend stocks or a single global index fund, you still have to know the number. The tactic is where I was wrong. The math is where I was right.
That’s the lesson under the lesson: don’t fall in love with the instrument.
Fall in love with knowing your number.
The number is the asset — not the tactic
Here’s why this matters more than any hot investment tip.
Most people never compute the number, so they drift. They feel vaguely anxious about money forever, because “enough” is undefined — and an undefined target can never be hit. The moment you run the equation, three things you didn’t have appear: your number, your path, and your timeline.
Suddenly “someday” becomes “S$X per month for Y years,” which is a plan you can act on Monday.
It also changes your decisions.
When you know your number and your distance from it, you can decline the higher-paying job that would cost you your life, because you can see you don’t need it. You stop making choices out of vague money-fear and start making them against a real target. That’s not just wealth — that’s freedom of decision, which arrives long before the final dollar does.
I track it as a simple percentage: passive income ÷ the number = how far along I am. Watching that figure climb is worth more than any motivational quote, because it’s real.
Two levers, and knowing which one you’re short on
The equation has only two inputs you control: spend less, or earn more. Both work. But they’re not equal, and people obsess over the wrong one.
There’s a hard floor under cutting expenses — you can only trim so far, and you can never save more than you earn. The small leaks are real and worth plugging, but past a point, trimming lattes stops moving the number.
Earning and building has no ceiling.
So the honest question isn’t “how do I save harder” — it’s “which lever am I actually short on?” If you’re not saving any of a decent income, fix the leak. If you’re already lean and the number’s still distant, the answer was never the coffee.
It’s building.
Do the arithmetic today
Freedom isn’t a feeling you wait to receive.
It’s a number you back out of two figures you already have, and then build toward on purpose.
Run it tonight. Your expenses, divided by a rate you’d trust through a bad market. Whatever comes out is your number. Now you know what you’re building, how far you are, and roughly how long it takes. The mystery was never real — it was just arithmetic nobody made you do.