Are You Ready to Invest?

Why this matters

The biggest risk for a new investor usually isn't picking the wrong investment. It's being forced to sell at a bad moment because something unexpected happened and there was no other money to use. This lesson is about making sure that doesn't happen to you.

1. A cash cushion first

An emergency fund is money kept in cash, in a savings account or similar, for things you can't plan: a job loss, a medical bill, a car that won't start.

Here's why it comes before investing. Investments go up and down, and bad news in your life doesn't wait for a good day in the market. Without a cash cushion, a surprise bill could arrive in the same month your investments are down, and you'd have to sell them at a loss to pay it.

A common guideline is to keep enough cash to cover three to six months of essential expenses¹: rent or mortgage, food, utilities, insurance, minimum debt payments. The right amount depends on how stable your income is. Someone with a steady salary and a second earner at home may need less. Someone who's self-employed may want more.

2. A plan for high-interest debt

Paying off debt and investing are two uses for the same money, so it's worth comparing them directly.

When you pay off a debt, you stop paying its interest. That saving is certain. When you invest, the return is uncertain: it might be good, it might be negative. So if a debt charges a high interest rate, paying it off is often the better deal.

Jordan has $3,000 on a credit card with an APR² of 24%, and $3,000 in savings beyond their emergency fund. They're choosing between two options for that $3,000.

Option	Result over one year
Pay off the card	Avoids about $720 of interest. Certain.
Invest instead	Would need to earn more than 24% just to break even. Uncertain.

The numbers are simplified: real card interest is charged monthly on a changing balance. But the comparison holds. Very few investments can be relied on to beat a 24% interest rate, so paying off the card is like earning a guaranteed 24%, as long as the balance doesn't build up again.

Not all debt is the same. A low-rate mortgage or student loan is a very different comparison from a credit card, and many people invest while paying those down steadily. The point is to know the rate on each debt you have. The higher it is, the stronger the case for paying it off before investing.

3. Know when you'll need your money

Split your money by when you'll need it:

• Within the next few years. A home deposit, tuition, a wedding, a car. This money needs to be there on the day you need it, so it usually belongs in savings, where its value doesn't fall.
• Many years away. Retirement, or long-term goals without a fixed date. This is money that can ride out bad years, which is what investing asks of it.

How long you can leave money invested is called your time horizon. It gets its own lesson, Time Horizon and Risk Tolerance, because it shapes almost every investing decision.

A note on retirement accounts

Some employers add money to your retirement account when you contribute to it, often called a match.³ If you have that option, it's worth understanding early, because the matched money is added on top of what you put in. Part 1 introduces account types in Taxable vs. Tax-Advantaged Accounts, and Part 6 has a full module on retirement accounts, starting with How Retirement Accounts Work.

Key takeaways

• An emergency fund in cash protects your investments from being sold at the worst moment.
• Paying off high-interest debt gives a certain return equal to its interest rate, which investments rarely beat reliably.
• Money you'll need within a few years usually belongs in savings. Money you won't need for many years can be invested.
• Being ready doesn't mean being perfect. It means ordinary life won't force you to sell.

Check your understanding

Sam has no emergency fund and $4,000 they'd like to invest. What's the main risk of investing all of it right away?

1. Their investments will definitely lose money in their first year.
2. They'll pay more tax on their gains than if they waited a year to invest.
3. An unexpected expense could force them to sell when prices are down.

What's next

That's the end of Start Here. Part 1 begins with the most basic question of all in What Is Investing?: what investing actually is, and how it differs from saving.