A named rule from The Escape Fund

The Coffee Line

The balance at which your savings account’s interest pays for exactly one coffee a month. Below that line, the account is a place to keep money — not a way to grow it.

Why the line moves

The line is not about you. It is set entirely by the rate you are paid. At a representative big-bank rate of 0.4% you need $15,000 saved before the interest covers one $5.00 coffee a month. At a genuine high-yield rate of 4% you need $1,500 — ten times less, for the same coffee.

That gap is the whole argument. Most people who feel their savings are doing nothing are not saving too little; they are being paid a rate that puts the line an order of magnitude out of reach.

What actually moves this number

Move the rate first, because it is free and it is permanent. Opening a high-yield account takes an afternoon, costs nothing, and multiplies the interest on every dollar you already have by ten. On $2,000 that is $72.00 a year you were not being paid; on $10,000 it is $360. Nothing else on this page pays you for one afternoon of work, and you keep the gain every year after.

Then know which lever you are pulling. The rate sets where the line sits; your balance decides which side of it you are on. Below the line, the interest is genuinely small — so the thing that changes your position is the amount going in, and the rate is what stops that amount being quietly eaten while it waits. Both are worth doing. They are just doing different jobs, and advice that conflates them is why savings feels like it does nothing.

Where this does not apply: money you need inside a year. The Coffee Line is a comment on savings accounts, not an argument for moving cash somewhere it can fall. A high-yield savings account is still a savings account — that is the point of recommending one here.

What this assumes

• A coffee costs $5.00, bought once a month. Change it above — the line moves with it.
• Interest is simple annual interest at the rate you enter, before tax.
• The big-bank rate shown is 0.4%. 0.40% ~ FDIC national average; megabanks pay 0.01-0.02% (we are generous to them)
• The high-yield comparison is 4%.
• No inflation adjustment on this page. The Coffee Line is deliberately a nominal question: it asks what the interest buys, not what the balance is worth.

These are the same constants used in the episode's on-screen charts, read from one shared file.

The full working behind the video, including every figure and its source, is on the receipts page for “The Money Advice That Keeps You Poor”.