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Before you get in, set aside your emergency money

Everyone rushes to study what to buy and how much to invest, but there's something even earlier that often gets skipped: you have to set aside a pot of cash you can reach at any time. Skip this step and however precisely you size your position, it's all for nothing.

I made a mistake that still makes me wince. Right when the 2022 downturn was at its deepest, something urgent at home needed cash, I didn't have enough liquid money, and I had to sell a chunk out of an account already down by half to cover it. It was as if reality forced me to take a cut at the worst possible level. The money lost in that cut never had to be lost — if I'd set aside an emergency fund in advance, I could easily have held the account untouched and waited for the market to come back slowly.

Only after that did I truly get it: the emergency fund isn't “prep work” for investing, it's the single most crucial link in your investing plan itself.

Why the emergency fund comes before investing

The core is one sentence: without an emergency fund, you lose the right to “not sell.”

One of the most valuable abilities in investing is to sit still when the market looks ugly — to not be forced to take a loss, to hold through it. But this ability has a hidden precondition: your daily life doesn't depend on cycling this investment. The moment you lose a job, fall ill, or hit a family crisis, and you have no liquid cash on hand, the only thing you can turn into cash is the coins in your account. And these emergencies often collide exactly with market troughs (when the broader environment is bad, trouble is more likely and prices are more likely low), so you're forced to sell at the bottom.

That's why I put the emergency fund ahead of every investing action. On the surface it's money “sitting idle and untouched,” but in reality it protects the money in your account that “should stay untouched for the long term,” keeping it from being cut down early by life's accidents.

Another way to see it: the emergency fund and the position cap are two sides of the same thing. In how much to put into crypto I keep stressing “only invest spare money,” and the emergency fund is the ruler that helps you define “which money is truly spare.”

How much emergency fund to keep

A reference that's been repeated for years, and genuinely works, is: 3 to 6 months of essential living expenses. Note “essential expenses” — rent, food, utilities, loan payments, not every single thing you currently spend on.

Whether you keep 3 months or 6 depends on your situation:

  • Stable income, light load (say single, on a steady salary): 3 months is acceptable.
  • Unstable income, or heavy family responsibilities (freelance, a mortgage, dependents above and below): lean toward 6 months or more. The harder it is for you to land your next paycheck quickly, the thicker the buffer should be.

If you don't even have one month of emergency money right now, the answer is clear — build the emergency fund first, push investing back. At this stage you invest at most with a very small amount (a few hundred dollars), aimed at learning the volatility and practicing the rules, not at actually counting on it to make money. Give the bulk to the emergency fund; it's the “position” a beginner most needs to build — it just isn't in crypto.

Where to keep it — don't dump it into crypto too

The emergency fund is most likely to derail at the last step — many think “money sitting idle is idle anyway, put it in crypto and earn a bit,” and so they buy the emergency fund into crypto too. That completely cancels out its whole point.

The emergency fund has two hard requirements, and missing either breaks it:

  • Available anytime. When you urgently need it, it's that day, that week — it can't wait.
  • The amount basically doesn't shrink. You put in $50,000, and when you need it, it has to still be there — it can't have become $20,000.

Crypto meets neither: it's extremely volatile, and very likely crashes during the exact stretch you urgently need the cash. Putting your emergency fund into crypto is betting that “the market happens to be fine when I need the money” — and the cost of that bet is far too high.

Where to keep it: a bank savings account or a money market fund is just fine — stable, withdrawable anytime, almost no risk to principal. Low yield doesn't matter; the emergency fund's job was never to make money, it's to be there, steady, when you're at your hardest. Keep it fully separated from your investment account, so you never give yourself the chance to “borrow from it on a whim.”

To wrap this in one line: set aside 3 to 6 months of living costs first, then talk about how much to invest. This step isn't sexy and nobody likes talking about it, but it's a lesson I bought with one very unfair forced sale. Lay the foundation, and the positions that come after will stand steady.

Frequently asked

How much emergency fund should I keep?

Usually 3 to 6 months of essential living expenses. The less stable your income and the heavier your family responsibilities, the closer to 6 months or even more; with stable income and a light load, 3 months is acceptable. You're calculating the money that, if everything stopped for a few months, would be enough to keep you going.

If I haven't saved a full emergency fund, can I invest a little first?

You can use a very small amount to feel the volatility and learn the rules first, but the bulk should still go to building the emergency fund. The point is not to invest money that should be for emergencies — do that and one urgent need will force you to sell at the worst level.

Can I park my emergency fund in crypto to earn a yield?

Not advised. The whole point of an emergency fund is that it's available anytime and doesn't shrink, whereas crypto is volatile and could crash right when you urgently need it. Keep the emergency fund somewhere stable and quick to withdraw, like a savings account or a money market fund, and don't mix it with your investing.

Once the emergency fund is set, to actually invest that spare money you need an account that doesn't charge too much and lets you buy in batches. I use Binance myself; register with code BN1918 for 20% off trading fees.

See how to open an account →

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Risk warning: crypto prices are extremely volatile and you can lose your entire principal. Everything on this site is investor education and personal experience, not investment advice, and is not responsible for any investment outcome. Past performance does not indicate future returns.

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