Spot the Money Traps: "Guaranteed" Returns, Installment Fees and Crypto

Most expensive money mistakes share one feature: the real cost or risk is hidden behind a friendly number. Three habits remove most of the danger, and none of them costs a cent.

Walk away from "high yield", "capital guaranteed" and "can't lose"

Chinese regulators have given ordinary investors a rule of thumb for spotting illegal fundraising: a promised yield above 6% deserves suspicion, above 8% is dangerous, and at 10% and higher you should be prepared to lose your entire principal. Legitimate wealth products are no longer allowed to promise guaranteed principal or returns, and money lost in illegal fundraising is, by rule, borne by the participant, not backstopped by anyone.

These three lines come from regulators' experience rather than statute, and they target products and firms that promise high returns. They are a prompt to stop and check, not a legal test.

Convert installment fees and credit-card interest to an annual rate

Minimum payment: the minimum payment on a credit card is a loan charged daily, roughly 18% a year, and using it cancels the interest-free period.

Installments: a plan advertised as "0.6% fee per month" is not 7.2% a year. Because you repay principal every month while the fee keeps being charged on the original amount, the effective annual rate is about 13.8%.

When comparing two loans, look only at the annual percentage rate. Daily rates and monthly fee rates are designed to look small. Ask for the rate calculated as compound interest; a simple-interest quote must be labelled as such and will look lower. If you truly need to borrow, use a cheaper regular channel instead of rolling a minimum payment forward, and never touch high-interest private lending.

Try it yourself with our loan calculator and debt payoff calculator.

Don't buy crypto, and don't follow someone who invites you in

Mainland China does not recognise virtual currency as money. A personal purchase can be ruled invalid, and losses are yours: in one reported case a buyer paid about 448,000 yuan for Tether, the platform later refused withdrawals, and the court rejected the lawsuit to recover the money. Theft is a separate matter: in a case from Lianshui, Jiangsu, someone scanned a QR code and about 57,000 USDT (roughly 394,000 yuan) left their wallet, and a court publication argued it should be punished as theft. So always report theft and fraud to the police, but never expect a court to rescue a bad crypto investment.

If you already hold coins, avoid connecting your wallet to unfamiliar sites and periodically review which sites hold transfer permission, since a single "approve" click can let an attacker move your balance without limit.

Never use your own bank card to receive or move money for strangers either; that can become a criminal matter in itself.

A quick checklist

• Promised yield above 6%, or any "guaranteed" wording: stop.
• Every borrowing offer: ask for the annual rate, not the daily or monthly one.
• Crypto and "signal groups": the cost is the whole amount, and the law will not help you recover it.

Source and license: adapted from HowToLiveBetter (高性价比人生指南) by eternity4719, Section 5 "Don't Waste Money", licensed under CC BY 4.0 (https://github.com/eternity4719/HowToLiveBetter). We condensed and translated the original entries; see the source for evidence grades and citations. Rules described here apply to mainland China and may change. This is educational content, not investment, tax or insurance advice.