Financial Freedom.

Financial freedom is usually discussed as though it were a place — a finish line at the end of a career, an exit door from work you've grown tired of. Technically it is nothing more than a very simple arithmetic inequality: income that doesn't depend on your labor ≥ your expenses. Once that sign holds, working changes status from obligation to choice. That's all. There is no magic in it.

But precisely because the formula is that simple, most of the difficulty lies elsewhere than in the mathematics. It lies in two harder things: the evidence — what research actually knows about how much can safely be withdrawn, how much depends on the luck of market ordering, and whether money genuinely buys happiness — and the wisdom to set the denominator, which is to say, deciding how much is enough for you.

This article assembles both: the arithmetic that cannot be negotiated, the empirical evidence along with its limits, IDX context that differs from the American narrative, what science says about money and well-being, and how six civilizations — Greek, Chinese, Islamic, Persian, Japanese, Indian — answered the question "how much is enough" long before anyone coined the term financial freedom.

The big picture: two sides of one inequality

Because financial freedom is an inequality, there are exactly two ways to narrow the gap. Raise the numerator — grow passive income — or lower the denominator, meaning expenses. Nearly all financial advice in the world is a variation on one of the two.

What's rarely noticed: the two sides are not equally powerful. Lowering expenses works twice. It immediately shrinks the target you're chasing, and simultaneously widens the surplus you can save. Raising income works only once — and is often neutralized by the lifestyle increase that follows it.

What matters isn't how large your income is, but how wide the gap is between your income and your spending.

This is why someone on a large salary can stay trapped forever while someone on a moderate one can be free within two decades. That gap is the engine — not the number on the payslip.

The arithmetic you can't negotiate: savings rate

There is one calculated result worth knowing before reading hundreds of investing articles: the time to financial freedom is determined almost entirely by the percentage of income you save, not by the size of that income.

The reason is elegant. Your savings rate determines two things at once — how fast the portfolio grows, and how small the living cost is that must eventually be funded. If you live on 50% of your income, roughly every year worked funds one year not worked. If you live on 90%, ten years of work funds only about one.

Here is the calculation, starting from zero, targeting 25× annual expenses (equivalent to a 4% withdrawal rule), across three real-return scenarios — that is, after inflation:

• Saving 10% → about 51 years (at 5% real); 69 years if only 3%.
• Saving 20% → about 37 years; 47 years at 3%.
• Saving 30% → about 28 years.
• Saving 40% → about 22 years.
• Saving 50% → about 17 years.
• Saving 60% → about 12 years.
• Saving 70% → about 9 years.

Notice the shape of the curve. Going from 10% to 20% cuts 14 years; going from 60% to 70% cuts only 3–4. The largest improvements sit in the earliest steps — and that is exactly where most people haven't taken a step at all.

Notice a second thing too: at low savings rates, the assumed return matters enormously — the difference between 51 years and 69. At high savings rates that difference shrinks to a matter of months. Which means the more you save, the less your fate depends on how markets behave. Saving is the only variable entirely under your control.

The 4% rule: where it came from, and why not to trust it wholesale

The figure of 25× comes from one of the most influential studies in retirement planning. William Bengen (1994) tested every 30-year period in U.S. market history and found that an initial withdrawal of about 4% of the portfolio, adjusted for inflation each year, never exhausted the money within 30 years. The Trinity Study (Cooley, Hubbard & Walz, 1998) reinforced it by computing success rates for various stock-bond mixes.

That number then spread as though it were a law of nature. In truth it is a finding bound to a particular place, period, and set of assumptions. Four serious objections:

• The bias of one fortunate country. The original data is the twentieth-century American market — the best-performing market in the world over that period. Wade Pfau (2010) and later Javier Estrada (2018), testing cross-country data, found safe withdrawal rates in many other markets far below 4%. The harshest is Anarkulova, Cederburg, O'Doherty, and Sias (2025): using data from 38 developed countries and correcting for survivorship bias in the data, they calculate that a 65-year-old couple willing to accept only a 5% chance of running out can really withdraw about 2.31% per year — far below 4%.
• A 30-year horizon. Bengen tested a 30-year retirement. Someone free at 40 may need 50 years — and over a horizon that long, the safe withdrawal rate falls.
• Costs ignored. The original research deducted no management fees, taxes, or trading spreads. Every 1% of annual cost means roughly 1% less that can be withdrawn.
• Human behavior assumed perfect. The model assumes you withdraw exactly the same amount, without panic, without adjusting, through every crisis. Very few humans are like that.

Sequence risk: the silent killer invisible in averages

There is one risk that shows up in no average figure at all, and it deserves to be understood by anyone planning to live off a portfolio: sequence-of-returns risk.

Take two return series with exactly the same average over 30 years, then withdraw the equivalent of 4% of the starting balance each year. One series begins with good years, the other with bad ones — identical contents, order simply reversed. The final result, in our simulation: a balance of 86 versus 12 from a base of 100. A sevenfold difference, from identical averages.

The cause: withdrawing while prices are down forces you to sell more units, and units sold never participate in the recovery. Damage done in the first five years is never really healed.

The practical implication is very concrete: the most fragile years are the ones immediately after you stop working. A cash buffer of one to two years of expenses, a willingness to tighten spending when markets fall, or a small income that keeps flowing in the early years — all are worth far more than they appear on paper.

The dividend path: a different model, with different risks

Many Indonesian investors take another route: rather than drawing down principal each year, they live on dividend cash flow and never touch their share count. Mathematically this is neither a better nor a worse version — it simply trades one set of risks for another.

The arithmetic, after accounting for the 10% final dividend tax on resident individual taxpayers and using the conservative convention of dividing the year into 13 parts (following the local thirteenth-salary custom):

• 4% yield → requires a portfolio of about 361× monthly expenses.
• 5% yield → about 289× monthly expenses.
• 6% yield → about 241× monthly expenses.
• 7% yield → about 206× monthly expenses.

The advantages are real, and mostly psychological — which matters precisely because failures of financial plans are almost always failures of behavior. Dividends arrive as cash without selling anything, so a price decline forces no action. They also feel like a salary, and that makes the plan easier to stick with.

The drawbacks are just as real, and some are specific to IDX:

• Dividends are not a promise. The amount is decided by the shareholders' meeting each year and can be cut, deferred, or skipped — usually in exactly the hard times when you need it most.
• The high-yield trap. Yield is a fraction: dividend over price. It can spike not because the dividend rose, but because the price fell — and falling prices often precede shrinking dividends. Chasing the highest yield is the most common way to walk into this trap.
• Sector concentration. Large dividend payers on IDX cluster in banking and energy/commodities. A dividend portfolio that appears to hold a dozen names may really be just two bets: the interest-rate cycle and the commodity cycle.
• A bias that ignores total return. A company paying out nearly all its earnings retains little to grow with. What matters for long-run wealth is total return, not the portion that happens to be paid in cash.

A tax note often overlooked. The 10% rate derives from Article 17(2c) of the Income Tax Law in conjunction with Government Regulation 19/2009. But through implementing rules of the Job Creation Law — PMK 18/2021, most recently amended by PMK 81/2024 — dividends received by resident individual taxpayers may be excluded from income tax provided they are reinvested in Indonesia in specified instruments, held for at least three tax years, and reported on time. This meaningfully changes the arithmetic for anyone still in the accumulation phase — and specifically does not apply to anyone already living on their dividends, since the condition is that the money not be consumed. Tax rules change fairly often; always check the current regulation.

Two silent enemies: inflation and lifestyle

Financial freedom plans most often fail not because markets fall, but because the denominator quietly grows.

Inflation works slowly but without mercy. Indonesia's official inflation target for 2025–2027 is set at 2.5% ±1% (PMK 31/2024), and 2025 came in at 2.92% — relatively mild by Indonesia's own history, which has passed through far fiercer periods. At 3% a year, one million rupiah today will buy about 412 thousand rupiah worth of goods in 30 years. Inverted: you'd need 2.43 million in year 30 to buy what one million buys today.

This is why every financial freedom target must be stated in real returns. A portfolio growing 6% while inflation runs 3% is growing 3% in the measure that actually matters: how many goods it can buy.

Lifestyle inflation is more dangerous still, because it doesn't feel like a problem. Psychologists Brickman and Campbell called it the hedonic treadmill: a rise in living standards delivers a burst of satisfaction that quickly fades and then becomes the new baseline that feels normal — and every rise in that baseline permanently raises your financial freedom number. An extra 2 million rupiah a month that feels trivial adds roughly 578 million to the target you must accumulate, at a 5% yield.

Every lifestyle upgrade moves the finish line further away — faster than your stride can close the distance.

What science says about money and happiness

Since the whole exercise ultimately aims at a better life, it's fair to ask what research actually knows about the link between money and well-being. The answer is more interesting than the two slogans usually in circulation.

Richard Easterlin (1974) opened the debate with the paradox that bears his name: within a country, richer people on average report being happier than poorer ones, yet decades of economic growth did not raise that country's average happiness proportionally. One explanation is social comparison — what matters is not how much you have, but how much relative to those around you.

Kahneman and Deaton (2010) found a subtler pattern: day-to-day emotional well-being rose with income then flattened above a certain threshold, while a person's overall evaluation of their life kept rising. Killingsworth (2021), using real-time experience data, found no such plateau. What happened next is an example of science working as it should: the three collaborated adversarially (Killingsworth, Kahneman & Mellers, 2023) and found both were right about different groups. For most people, happiness continues rising with income. For the least happy minority, that rise stops once needs are met — because the source of their suffering isn't money.

The honest conclusion: money genuinely matters, chiefly through its power to remove suffering — debt, uncertainty, work that can't be walked away from. But it can't solve problems that aren't money problems. Two complementary findings are worth remembering: Dunn, Aknin, and Norton (2008) showed that spending money on others yields more happiness than spending it on oneself, and Whillans et al. (2017) found that using money to buy time — delegating tasks you dislike — raises life satisfaction.

How much is enough: six civilizations answer the same question

The denominator in the financial freedom formula — how much you need — is not a financial question. It is a philosophical one, and it has been answered repeatedly long before spreadsheets existed.

Greece: meeting a household's needs, versus pursuing without limit

Aristotle distinguished oikonomia — the art of managing a household to meet the needs of a good life, which he held has a natural limit — from chrematistike, the accumulation of wealth as an end in itself, which he held has no limit and therefore cannot satisfy. The modern word "economy" descends from the first; modern habits more closely resemble the second.

Epicurus, whose name ironically became a synonym for luxury, taught the opposite: distinguish desires that are natural and necessary (food, shelter, friendship), those natural but unnecessary, and those merely empty — fame, power, limitless luxury. Happiness, he said, comes from satisfying the first group and freeing yourself from the third.

Seneca, who happened to be among the wealthiest men in Rome, put it most sharply: it is not the man who has little who is poor, but the man who craves more. A maxim commonly attributed to Epictetus continues it: wealth consists not in having great possessions, but in having few wants.

China: knowing sufficiency as a form of wealth

Laozi wrote six characters that became one of the densest sentences in the history of economic thought — 知足者富, zhī zú zhě fù: one who knows sufficiency is rich. Wealth is redefined not as the quantity held but as the relationship between what is held and what is wanted. By that definition, a person can become rich today, without adding a single rupiah.

Zhuangzi supplied the image: a small bird nesting in a vast forest needs only one branch.

Islam: qana'ah, zakat, and wealth as a trust

The Islamic tradition treats wealth as something entrusted to be managed, not as a final end. Qana'ah — sufficiency and contentment with the provision one has — is regarded as true wealth, in keeping with the well-known hadith that real wealth is not an abundance of possessions but richness of the soul (Bukhari no. 6446; Muslim no. 1051). This is not a call to passivity: working and earning a living are obligations, and providing for one's family carries the weight of worship. What is rejected is limitless greed.

There are also two structural mechanisms that reward reading through a modern financial lens. Zakat — 2.5% on productive wealth that reaches the threshold and is held a full year — functions like a light wealth tax that slowly penalizes hoarding without deployment; idle wealth erodes, productive wealth does not. The prohibition of riba steers returns toward shared risk rather than interest guaranteed in advance.

Al-Ghazali, in Ihya' Ulum al-Din, devotes considerable space to the censure of miserliness and the love of wealth: property is not evil in itself, but it is dangerous to those who don't know how to handle it. Ibn Khaldun, in the Muqaddimah, built a theory of provision and livelihood that distinguishes sustenance earned through work and enterprise from accumulation disconnected from real value.

Persia: simplicity as a source of ease

Persian literature holds some of the loveliest counsel on sufficiency. Saadi's Gulistan strings together tale after tale of people of modest means sleeping soundly while rulers lie awake guarding their treasure. The recurring theme: possession demands protection, and that protection is itself a form of bondage. Rumi takes it deeper still — anxiety about wealth usually disguises another anxiety one hasn't dared to face.

Japan: 足るを知る and a reason to wake up

At Ryoan-ji temple in Kyoto stands a stone water basin inscribed with four characters read ware tada taru o shiru: I know only sufficiency. Pilgrims must bow to drink — a posture that is part of the lesson.

Interestingly, the same culture rejects the idea of ceasing work. Ikigai — a person's reason for getting up in the morning — is not about retirement but about sustained, meaningful engagement. In Okinawa, the region with the world's highest life expectancy, there isn't even a word that means precisely "retirement." The combination of the two is a more mature formulation of financial freedom than the popular version: need little, and keep a reason to get up.

India: aparigraha, not grasping

The Yogic and Jain traditions teach aparigraha — non-hoarding, not grasping beyond need. The reasoning is not merely moral but psychological: every possession creates attachment, every attachment creates fear of loss, and that fear is the true opposite of freedom. An observation instantly recognizable to anyone who has ever checked a stock price five times in one day.

Free from what, free for what

Isaiah Berlin distinguished negative liberty — freedom from coercion — and positive liberty: freedom to become something. Financial freedom delivers only the first. It releases you from obligation; it says nothing about what the freedom is for. And the second question is far harder than the first.

The empirical evidence lines up with this. The literature on retirement and health returns mixed results — some studies find improved mental health after stopping work, others find cognitive decline and elevated depression risk, particularly among those who stop without replacement structure, purpose, and social ties. What determines the outcome is not the stopping but what takes its place.

Viktor Frankl, from about the most extreme experience imaginable, concluded that a human being can endure almost any "how" given a "why." Financial freedom settles the "how." It doesn't touch the "why" at all.

From this come two characteristic ailments of financial-freedom seekers. One-more-year syndrome: the target number is reached, but there is always a reason to postpone one more year — because that number was never what was really feared. And the emptiness on arrival: an identity leaned for ten years on chasing something suddenly loses its footing precisely upon succeeding.

The antidote is simple and must begin long before the finish line: build a life worth living during the journey, not as a prize at its end. If the next ten years must be hated for the sake of the eleventh, the price is too high — and in all likelihood the eleventh won't feel the way it was imagined either.

An honest roadmap

Arranged in order, because the order matters — later steps grow fragile if earlier ones are skipped.

1. Set the number first. What are your actual monthly needs? Without this figure the entire plan has no denominator, and "enough" will keep drifting away.
2. Secure the foundation. Six to twelve months of expenses in an emergency fund, health coverage that works, life insurance if anyone depends on you. A single unexpected event can erase five years of investment progress.
3. Clear high-interest debt. Paying off credit card debt is a risk-free return equal to its interest rate — a number no portfolio consistently beats.
4. Measure your savings rate, not just your portfolio value. It is the one number entirely within your control, and its influence on the timeline exceeds that of stock selection.
5. Automate it. Set money aside first, not from what's left. Saving what's left means saving the remainder of your willpower, and willpower is a depleting resource.
6. Keep the denominator flat as income rises. A raise that goes entirely to savings is the single largest accelerator available to most people.
7. Diversify for real. Especially if relying on dividends: count sectors and the underlying economic exposure, not merely the number of ticker symbols.
8. Plan the first years specifically. A one- to two-year cash buffer, a willingness to adjust spending when markets fall, or a small continuing income — this is your defense against sequence risk.
9. Measure, don't guess. The Toward Financial Freedom simulator on the Portfolio page computes where you stand today from your own portfolio value and dividend estimate, then projects the timeline based on the regular contribution you set.
10. Decide early what you'll do afterward. This is the most frequently skipped part, and the one that most determines whether all the effort feels worthwhile when you arrive.

Closing

Financial freedom is simple arithmetic attached to a question that isn't simple. The calculating part can be settled with discipline: widen the gap between income and spending, invest the surplus broadly and consistently, respect inflation, respect sequence risk, and don't trust any single magic number — including 4%.

The hard part is the one Aristotle, Laozi, the Sufis, and a stone basin in Kyoto had already answered long before calculators existed: deciding how much is enough. Because this formula has two sides, and throughout history the denominator has always proved easier to move than the numerator — while also being the side most often ignored.

This is the stance we hold at Sobat Investor: chase the number with evidence and honesty, but set the number with wisdom. The first without the second produces wealthy people who never feel they have enough — and that, by the oldest definition we have, is not freedom.

References & Further Reading

This article is educational and is not investment, tax, or financial planning advice. Investment decisions are entirely your own responsibility. Past performance does not guarantee future results. Tax rules may change — always refer to the regulations currently in force.