Cryptocurrency: What It Is, How Risky It Is and How to Avoid Scams

Few investments stir up as much excitement and fear as cryptocurrency. Some people got rich; others lost their life savings. This final lesson won't tell you whether to buy it. It gives you the facts to decide with the same cool head you applied to index funds and rental property, plus the rules that keep you from becoming one of the many victims of crypto fraud.

What it is, in plain English

• Cryptocurrency: a digital asset recorded on a database shared by thousands of computers (the blockchain), with no central bank issuing or controlling it.
• Bitcoin: the first and largest. Its supply is capped at 21 million coins, which is why fans call it "digital gold."
• Ethereum and others: platforms that run programs and applications in addition to having a coin. Thousands of other coins exist; most have lost nearly all their value or disappeared.
• Stablecoins: tokens designed to stay worth $1. They're used to move money between crypto platforms. Their stability depends entirely on the issuer actually holding the reserves it claims.

What matters for your finances: a cryptocurrency produces no cash flow. It doesn't pay rent, interest or dividends the way a rental property, a bond or a company does. Its price depends entirely on what someone else will pay for it tomorrow. That makes it a speculative asset, even if some investors see it as a store of value.

The risk, in numbers

Bitcoin has fallen more than 70% from its peak several times, including in 2018 and 2022, and many smaller coins dropped more than 90% and never came back. Some collapses hit things that looked safe:

• In May 2022, the stablecoin TerraUSD lost its $1 peg and within days its value collapsed toward zero, taking its sister coin with it.
• In November 2022, FTX, one of the world's largest crypto exchanges, went bankrupt and customers' funds were frozen.

Compare that with lesson 9: a diversified stock portfolio can also fall 30% or 50% in a crisis, but behind it are thousands of companies that keep selling products and earning profits. Behind a cryptocurrency, there's nothing producing income to support the price.

Thinking about buying? The rules first

If you decide to invest, do it inside your plan, not instead of it:

1. The basics come first: a full emergency fund, no high-interest debt and your long-term investing already running (lessons 3, 4 and 10).
2. Keep it small: a slice of your investments you could watch fall 80% without changing your life or forcing you to sell. Many cautious planners suggest keeping speculative assets to 5% or less, and 0% is a perfectly reasonable choice.
3. If you buy, stick to the largest, most established assets. Avoid newly launched coins that "will go 100×."
4. Buy gradually, for example a fixed amount each month, rather than all at once after a big run-up.
5. Use regulated, reputable platforms and know their fees and spreads.
6. Report it on your taxes (see below).

Example: Ryan, a software engineer in Seattle, has $40,000 invested and decides to put 5% in crypto: $2,000. If it crashes 80%, he loses $1,600, or 4% of his portfolio. It stings, but his plan survives. Here's how the same 80% crash would hit his portfolio at different allocations:

At 50% ($20,000), the same crash would cost him $16,000: 40% of everything he has invested.

How crypto is taxed in the U.S.

• The IRS treats digital assets as property, not currency. Selling, trading one coin for another or spending crypto can create a taxable gain or loss.
• Holding more than one year generally qualifies for long-term capital gains rates; one year or less is taxed like ordinary income.
• Your Form 1040 asks directly whether you received, sold or exchanged digital assets, and crypto brokers report sales to the IRS on Form 1099-DA.
• Keep records of what you paid for each purchase (your cost basis).

How to protect your holdings

• Exchange or self-custody wallet: if you leave crypto on a platform, you depend on its solvency (remember FTX). If you hold it in your own wallet, you depend on yourself: lose the keys and no one can recover it.
• Your seed phrase (the 12 or 24 recovery words of a wallet) is the master key. Write it on paper, store it somewhere safe and never type it into a website or share it with anyone, even someone claiming to be "support."
• Turn on two-factor authentication with an authenticator app or security key, not SMS.
• Double-check addresses before sending: crypto transfers can't be reversed.

Golden rule: if you have to pay something to withdraw your "profits," it's already a scam. Report crypto fraud to the FBI's IC3 (ic3.gov), the FTC (ReportFraud.ftc.gov) and, for investment schemes, the SEC or CFTC.

My speculative investing policy
1. I only invest if: 6-month emergency fund complete, no consumer debt,
   and I'm contributing every month to my 401(k) and IRA index funds.
2. Maximum: 5% of my total investments (today, 5% of $40,000 = $2,000).
3. I buy $100 a month on a large, reputable platform (or a spot bitcoin ETF
   in my brokerage account); 2FA with an authenticator app;
   seed phrase on paper, stored at home, never photographed.
4. If it drops 50%: I don't panic-sell and I don't buy beyond my 5% cap.
   If it rises above 8% of my portfolio: I sell the excess and move it
   to my index funds (rebalancing, lesson 10).
5. I never invest because of social media tips or "limited-time" deals.

Summary

• Crypto produces no cash flow: it's a speculative asset that has fallen more than 70% more than once.
• Only after a full emergency fund, no high-interest debt and long-term investing in place, and only with a small slice you could lose.
• No FDIC insurance and generally no SIPC protection; the IRS taxes it as property.
• Use reputable platforms, app-based 2FA, and never share your seed phrase.
• Guaranteed returns, fees to withdraw and celebrity endorsements are signs of a scam.

Course recap

• Level 1, Beginner: financial checkup, budgeting, emergency fund and getting out of debt.
• Level 2, Intermediate: irregular income, renting vs. buying, compound interest and inflation, and your first investment accounts.
• Level 3, Advanced: risk and diversification, index fund portfolios, analyzing funds and your one-page financial plan.
• Level 4, Expert: credit scores and loans, insurance, real estate investing and crypto.

Congratulations, you've finished the Free Personal Finance Course! You now have the tools to organize your money, protect it and grow it with a clear head. To get your free certificate, create a free account (or log in), mark each lesson as completed, and download your certificate from the course page once all 16 are done. Remember that this course is general education: for complex decisions or large amounts, check official sources like IRS.gov, Investor.gov and ConsumerFinance.gov and, if you need it, a fee-only fiduciary advisor. Ready for your next skill? Browse our free courses.