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Should I use my savings to pay off debt?

For expensive debt, mostly yes — savings paying three percent while a card charges twenty-two is a guaranteed loss of the difference. But clearing the debt to zero and leaving nothing behind is how the debt comes back. Keep one month of essential spending, and use everything above it.

The arithmetic is not close

Holding 3,000 in savings earning 3% while carrying 3,000 on a card at 22% is not a balanced position. It costs you the difference — roughly 19% a year, around 570 — for the comfort of seeing a savings balance that is functionally already spent.

There is no clever argument that survives this. Money in a savings account beside expensive debt is losing money every day it stays there.

Why “clear it all” is still wrong

And yet the people who empty their savings to clear a card most often find themselves back in debt within a year. Not through recklessness — through arithmetic.

With no buffer, the next unexpected cost has nowhere to go except back onto the card. The car needs a repair, and there is no cash, so the balance restarts. You have spent your savings, cleared the debt, and now have the debt again with nothing behind it.

The savings were not just earning 3%. They were also functioning as insurance, and that insurance had value the interest rate did not capture.

What to actually do

Keep one month of essential spending. Not three — one. Enough to absorb the ordinary emergencies that would otherwise become new debt.

Use everything above that on the most expensive debt.

Then rebuild. With the expensive debt gone, the money that was servicing it now builds the fund properly, and it goes far faster than it did while interest was consuming it.

This sequence is not a compromise between two positions. It is the order that stops you repeating the cycle.

The cases where it changes

The debt is cheap. A 4% mortgage against savings earning 3% is nearly a wash, and the savings buy flexibility a mortgage overpayment does not. No urgency either way.

The savings have a job with a date. Money for a deposit you are using in four months, or a tax bill due in March, is not spare. Raiding it creates a different problem on a known date.

You cannot borrow again. If a debt, once repaid, could not be redrawn — a fixed-term loan rather than a credit card — then clearing it fully removes your access to that money permanently. Worth keeping a slightly larger buffer in that case, since the card is not there as a backstop.

Your savings are in something invested. Then this is not the same question. Selling investments to repay debt means realising whatever price the market offers that week, plus possible tax. Usually still right for expensive debt, but it is a bigger decision than moving cash.

The feeling worth naming

A savings balance is reassuring. Watching it drop to almost nothing to clear a debt feels like moving backwards, even though your net position is unchanged the moment you do it and improves every month afterwards.

That feeling is why the money sits there for years while it costs you. Naming it helps: you are not losing the savings, you are converting them into the removal of a 22% cost. The number that matters is what you owe minus what you have, and that number does not move when you do this. It just stops getting worse.