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Personal Finance Is Personal – Stop Taking Generic Money Advice on Faith

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Just the Tip:

Most money advice is written for an imagined reader with a steady paycheck and textbook discipline. Before you follow a rule, spell out what it assumes about your income and habits, then check whether that’s true of you. When it isn’t, the rule doesn’t apply to you, and dropping it isn’t a failure.

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The popular rules sound confident because the arithmetic behind them is usually right. What breaks is the assumption underneath, and two familiar rules show how.

Take the latte factor, the idea that a daily coffee habit quietly drains your savings. A $6 latte every workday costs about $130 a month, so cutting it looks like easy savings. But if you freelance or work remotely and that café is your office, the latte is what you pay for a table and Wi-Fi. WeWork’s entry-level All Access plan starts at $220 a month, or $187 on a one-year plan. That buys a seat you can book ahead, phone booths, two meeting-room credits a month, and unlimited coffee and tea. For you, the coffee is the frugal choice, at about $57 to $90 a month less than that plan.

Debt payoff works the same way. Paying the highest-rate balance first, known as the avalanche method, costs the least in interest. Paying the smallest balance first, the snowball, usually costs more in interest than the avalanche, but you close your first account sooner. A Kellogg School of Management study of nearly 6,000 debt-settlement clients found that the number of accounts people closed predicted who eliminated their debt better than the dollars they paid off. If you tend to quit plans that show no quick progress, the avalanche, though cheaper on paper, can cost you more than the snowball.

So before you adopt a rule, name its assumption. The latte rule assumes your coffee is a treat, not the price of a place to work. The avalanche assumes you’ll keep going even through months without paying off a single balance. Then check that assumption against your own life: how steady your income is, who depends on it, how much risk you can stomach, and how you behaved the last time a plan got hard.

Follow the rule if the assumption holds. Otherwise, adjust the rule until it fits your situation and goals, or drop it and build your plan around the life you actually have.

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