Pay it down or put it away? The arithmetic is clearer than the argument
Your card charges 22.15 percent. Your savings account pays 0.38. Anyone holding both at once loses the difference every day, and nothing on either statement points it out.
by The editors · Published · 7 min read
Picture $3,000 sitting in a savings account and $3,000 revolving on a credit card. That is not a contrived example. It is an extremely common arrangement, because having something put by feels like the responsible thing to do.
Now work it out. Credit card accounts assessed interest carried an average rate of 22.15 percent in the Federal Reserve's most recent quarterly reading[1], which on $3,000 is $736 a year. Savings accounts paid a national average of 0.38 percent[2], so the same $3,000 on deposit earned about $11. You are paying roughly sixty-five dollars for every dollar you earn, and both numbers are printed on statements that never appear on the same page.
Paying down is the only return fixed in advance
That sentence sounds like a sales line and it is actually a subtraction. Clear $3,000 of card balance and you have stopped paying 22.15 percent. Not probably, not on average over thirty years, not before fees and not subject to the market: the rate is in the cardholder agreement, and removing the balance removes the charge with certainty. No deposit product available to a household comes close, and no investment offers that rate with that certainty.
The counter-check makes the size of it concrete. To earn as much at 0.38 percent as a permanently revolving balance of $2,000 costs at 22.15 percent, you would need roughly $117,000 on deposit. Anyone with $117,000 on deposit is not reading an article about whether to pay off a credit card.
And the best-paying deposit still does not clear it
Money market accounts paid a national average of 0.63 percent over the same period[2], while consumer prices were 3.4 percent higher than a year earlier - a figure we worked out from the Bureau of Labor Statistics' own index, 333.918 in July 2026 against the same month a year before[3]. So the best-paying insured deposit in that table lost purchasing power over the year. That is an argument about where a buffer sits, not an argument against having one, and it is not a reason to reach for something riskier: a 22.15 percent debt is the highest guaranteed return available to you, and it is available right now.
Why not throw everything at it anyway
This is where the pure interest calculation stops being the whole answer. Empty the savings account into the balance, and the next failed transmission or emergency-room copay goes straight back onto the card - at 22.15 percent. You would have paid the interest twice for the privilege of a tidy statement in between, and you would be back where you started with less room to move.
So the order matters: a small buffer first, big enough to absorb one ordinary repair. Then pay the balance down, all of it. Then build the buffer out to full size. How large full size is depends on your fixed costs and not on your income - the [link:/basics/emergency-fund/] runs that number separately, and it is the one part of this that is genuinely personal.
The order among the debts themselves
If you are carrying more than one, the rate decides and nothing else does. The Federal Reserve's most recent figures[1]:
- Credit cards, accounts assessed interest: 22.15 percent. This is the average paid by people who actually carry a balance, and it is the number that applies to you if you do.
- Credit cards, all accounts: 20.94 percent. The average stated rate across every account, including the ones that never pay interest at all. Useful for comparison, not for your own arithmetic.
- Two-year personal loan: 11.86 percent. Roughly half the card rate, which is why consolidation is worth pricing - as a lower rate, never as a way to free up the card again.
- Five-year new car loan: 6.97 percent. Secured debt, and a different thing entirely. It is on this list to show the spread, not because it belongs at the front of the queue.
Work down from the top. That is unromantic and it is arithmetically right. Starting with the smallest balance because clearing it feels good is a real strategy with a real cost, and the calculator below will tell you what the cost is in your case rather than leaving it as a matter of temperament.
Run your own position
Until you are out
26 months
Paid in total
$3,779
Of that, interest
20.6%
$50 more per month gets you out 8 months earlier and saves $233 in interest.
| Outstanding | $3,000 |
| Your payment per month | $150 |
| Months until it is paid off | 26.00 |
| Paid in total | $3,779 |
| Of that, interest | $779 |
Assumptions behind this calculation
- The rate you enter is read as a nominal APR and divided by twelve, the way a card statement builds its periodic rate. Taking the twelfth root instead would understate the very number this is about.
- Calculated month by month in whole cents: interest on first, payment off second. That is the order a bank posts in, and it is the order you can check.
It starts at $3,000 at 22.15 percent with a $150 payment and $50 extra. Put your real figures in - your rate is on your statement and in your cardholder agreement, not in any national average, and it may be well above or below this one. Set the payment to zero once and look at what comes back: that is what the balance costs you for doing nothing, which is the number the minimum payment is designed to keep out of view.
Where this calculation stops applying
It is written for people who have a choice - who hold savings and debt at the same time. If you hold neither, because nothing is left at the end of the month, then this page has nothing useful to say to you, and the honest thing is to say so rather than to recommend a budgeting app. That situation is not solved by ordering your accounts differently, and free help exists that is better at it than any calculator. If things are truly tight
Two limits that apply to the saving side too
Once the buffer grows, two numbers start to matter. First, deposits are insured by the FDIC up to $250,000 per depositor, per insured bank, for each account ownership category[4] - per bank and category, not per account, which is not the same thing and catches people out. Second, interest on a savings account is taxable income in the year you earn it, so the 0.38 percent above is a figure before tax, while the 22.15 percent you save by paying down a balance is not taxed at all. That gap is wider than the headline rates make it look.
What you can do about it
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Look up your own rate today
The number that governs this decision is on your own statement, and most people have never read it. Find the purchase APR and, separately, the cash advance APR, which is usually higher and starts accruing immediately. Ten minutes, once. Every other sentence here is worth less than that one number.
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Leave a buffer that covers one repair, then clear the rest
Not a full emergency fund - a working buffer, enough for the kind of thing that actually happens: a car repair, a deductible, a replacement appliance. Everything above it goes at the balance. Rebuilding the fund afterwards is cheaper than borrowing at card rates in the meantime.
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Work the debts by rate, not by size
List every balance with its rate next to it. Pay the minimum on all of them and put everything spare on the highest rate until it is gone, then move to the next. If you want the psychological win of clearing a small one first, that is a legitimate choice - run it through the calculator so you know what the choice costs, then make it on purpose.
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Give it an end date the card does not have
A revolving balance has no maturity; that is the product, not an oversight. Put a date on it yourself - a month, on a calendar - and work back to the payment that gets you there. A fixed payment against a fixed date changes the shape of the debt completely, and it is the one thing the minimum payment will never do for you.
Frequently asked
Is paying down debt not just a form of saving?
Economically it is the better form of it. A dollar against a 22.15 percent balance returns 22.15 percent, guaranteed, tax-free and immediately. A dollar in a savings account returns 0.38 percent, taxable. The difference is not a matter of preference. What paying down does not give you is access - the dollar is gone once it has cleared the balance, and that is exactly why the buffer comes first.
Why is there nothing here about stocks or index funds?
Because the question on this page is what to do with money while a high-rate balance exists, and against 22.15 percent there is no honest case for taking market risk first. Clearing the balance beats the long-run average return of the market, with none of the variance. Once the balance is gone the question changes completely, and it is a different article - not this one, and not one we would write as advice.
Your rates are from August. Why not something more current?
Because these are the most recent figures the Federal Reserve and the FDIC had published when this article was updated, and each one carries its retrieval date on the sources page. A rate we made more current by estimating would be less useful, not more. Your own rate is on your own statement and is the one that decides the question anyway; the national averages are here to show the size of the gap, not to stand in for your paperwork.
This article is not investment advice. We describe how things work and what they cost. What fits your situation is yours to judge – if in doubt, with someone who knows it.
Sources
- G.19 Consumer Credit, Terms of Credit: credit card plans, all accounts 20.94 percent and accounts assessed interest 22.15 percent; 24-month personal loan 11.86 percent; 72-month new car loan 6.97 percent, Board of Governors of the Federal Reserve System, retrieved August 27, 2026.
- National Rates and Rate Caps, as of 17 August 2026: savings 0.38 percent, money market 0.63 percent, Federal Deposit Insurance Corporation, retrieved August 27, 2026.
- Consumer Price Index for All Urban Consumers, U.S. city average, all items (CUUR0000SA0): 333.918 in July 2026; the 3.4 percent twelve-month change is our own calculation against the same month a year earlier, U.S. Bureau of Labor Statistics, retrieved August 27, 2026.
- Deposit Insurance At A Glance: the standard insurance amount is $250,000 per depositor, per insured bank, for each account ownership category, Federal Deposit Insurance Corporation, retrieved August 27, 2026.
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