Debt Payoff Questions, Answered With Real Numbers

How do I pay off $30,000 in debt in 1 year?

Pay $3,150 a month. On a five-card $30,000 portfolio at 14-22% APR, the minimums total $750, so $3,150 means $2,400 extra. Both the snowball and the avalanche method finish in 12 months; avalanche pays about $479 less in interest. Full tables in the $30K case study.

How do I pay $20,000 in debt in 1 year?

Pay $2,100 a month. On a four-card $20,000 portfolio at 15-24% APR with $500 in minimums, that is $1,600 extra and both methods finish in 12 months, with avalanche about $261 cheaper. The number that matters more: minimums only takes 82 months and costs $14,728 in interest. Full tables in the $20K case study.

How long does it take to pay off $10,000 in credit card debt?

On three cards totalling $10,000 at 18-26% APR with $300 in minimums:

The full month-by-month breakdown, the payoff order under each method and where to find the extra $750 are in the $10K in 1 year case study. At $15,000 on four cards at 17-24% APR, $1,600 a month clears it in 12 months on both methods; see the $15K case study.

How long will it take to pay off $25,000 in debt?

On four cards totalling $25,000 at 16-24% APR with $625 in minimums:

Note where the two methods finally stop agreeing: at $2,500 both need 13 months, but at $2,700 avalanche finishes in 11 while snowball still needs 12. On balances this size the gap is measured in months as well as dollars.

Which is better, snowball or avalanche?

Avalanche never costs more interest, so on money it always wins or ties. Snowball wins on momentum: it clears a small balance early, which is the version most people actually stick with. How much the choice is worth depends entirely on your payment. On $20,000 cleared in 12 months, avalanche saves $261. On the same $20,000 at $700 a month, avalanche finishes six months sooner and saves $1,195.

The rule of thumb: at a high payment the two methods converge; at a low payment they diverge. If you can pay aggressively, pick whichever keeps you going. If you can only pay a little, pick avalanche, because you will be paying interest long enough for the rate ordering to compound.

What debt should I pay off first?

Cover every minimum first — missing one costs you fees and damages your credit file. After that, send all extra money to a single target. Snowball says target the smallest balance, because closing it frees up that minimum and gives you a visible win. Avalanche says target the highest APR, because that dollar stops accruing the most expensive interest. See the side-by-side on the snowball vs avalanche page.

Can you pay off a student loan with a credit card?

Usually not worth it, and the arithmetic is the reason. A federal student loan carries a fixed rate and a fixed term; a credit card carries neither. Moving $20,000 out of a 6-9% federal loan and onto a 24% card multiplies the opening interest charge by about 3.8 and removes the end date — the loan's own payment, sent to the card instead, does not even cover the card's first month of interest, so the balance grows rather than shrinks. Clearing a $20,000 card at 24% takes $500 a month and about seven years. Whether your servicer accepts a card payment at all is their rule, not arithmetic. Worked example: student loan vs credit card.

How much extra should I pay on my debt each month?

As much above the minimum as you can, aimed at your highest-rate debt. On a $20,000 card at 24%, the $500 minimum takes 82 months and costs $20,637.97 of interest — more than you borrowed; adding $100 a month ($600) cuts it to 56 months and saves $7,349.62. The same $100 on a 7% loan saves only $1,686.01, because the rate is lower. Worked example: how much extra to pay.

What happens if you only pay the minimum on a credit card?

The balance barely moves for years. On a $10,000 card at 24%, the $250 minimum takes 82 months — nearly seven years — and costs $10,318.98 of interest, more than the balance. Only $50 of the first $250 reaches the balance. Adding $50 a month ($300) cuts it to 56 months and saves $3,674.81. Worked example: only the minimum.

What is the fastest way to pay off debt?

Raise the monthly payment, not the ordering. On a $20,000 balance, going from minimums to $2,100 a month saves $12,568 in interest; choosing avalanche over snowball at that payment saves $261. The payment is 48 times more powerful than the method. Among orderings, avalanche is the fastest, and it is the right default if you only ever pay a little extra.

How do I pay off debt if I live paycheck to paycheck?

Start with the smallest balance, not the highest APR. The first debt you close frees up its minimum, and that freed cash is what lets you attack the next one — you are building cash flow, not optimizing interest. The other half is that small amounts matter more than they feel like they should: on a $20,000 balance the first $400 above minimums cuts 28 months off the timeline. Put the plan in writing and check one number each month: the total remaining balance.

How do I make a debt payoff spreadsheet?

Four columns — Debt, Balance, Min Payment, APR — with one row per debt, plus a single cell for your extra monthly payment. Then one block per month that applies interest to each open balance and subtracts that month's payment. The full walkthrough and a downloadable file are on the debt payoff spreadsheet page, and this site's export produces exactly that layout as CSV.

What is the formula for calculating debt payoff?

Convert APR to a monthly rate with APR / 100 / 12. Then, each month: interest = balance × monthly rate and new balance = balance + interest − payment. Repeat until the balance reaches zero. This calculator charges interest first and then applies the payment, which is how card issuers post, so your result should sit close to your statement.

Does this calculator save or send my data?

No. The page runs entirely in your browser — nothing is uploaded, stored, logged or shared. The CSV you download is the only thing that leaves the page, and it contains only the numbers you typed in. There is no account and no signup.

Can I run these numbers through an API?

Yes. The engine behind every number on this page is public:

POST https://debtsnowballtool.com/api/payoff
{
  "debts": [
    {"name":"Card A","balance":6000,"apr":24,"minPayment":150},
    {"name":"Card B","balance":5000,"apr":19,"minPayment":125},
    {"name":"Card C","balance":4500,"apr":22,"minPayment":110},
    {"name":"Card D","balance":4500,"apr":15,"minPayment":115}
  ],
  "extra": 1600
}

It returns both methods' payoff order, months, total interest and a month-by-month timeline. APR goes in as a percentage (24, not 0.24) and extra is the amount above your total minimums.

How much does APR affect how long it takes to pay off a credit card?

The rate sets the timeline far more than the balance. On a $10,000 balance at a fixed $250 minimum, 12% APR clears the card in 52 months and costs $2,834.67 of interest, while 29% APR stretches to 143 months and $25,608.99 of interest — about 2.8 times the time and 9 times the interest for the same debt. Worked example: APR and payoff time.

How much does a 0% balance transfer save you?

The interest saving is large and immediate. On a $10,000 balance at 24% with a $250 payment, doing nothing costs $10,318.98 of interest over 82 months. Move it to a 0% offer for 18 months (typical 3% fee, $300) and the same $250 payment clears it in 48 months for $2,120.47 all-in — a $8,198.51 saving. Every figure comes from this site's payoff engine.

Does a 0% balance transfer hurt your credit score?

Usually it helps, not hurts. On a $10,000 balance and a $12,000 limit, your card sits at 83% utilization — the second-biggest score factor after paying late. Move that balance to a new $15,000-limit card and keep the old one open, and your total utilization falls to 37%, which is strongly positive for your score. The only real cost is one hard inquiry (most people lose under 5 points, fully recovered within about a year) and a small, temporary new-account dip. A 0% balance transfer hurts your score only if you close old cards, miss payments, or apply for several cards at once.

Does a 3–5% balance transfer fee still pay off?

It depends on the balance. At $10,000 a 3% fee ($300) is 3% of the $10,318.98 of interest it avoids — clearly worth it. At $1,000 the same fee is 57% of the $53.07 it avoids, and at 5% you net just $3.07. Above about $5,000 the fee is noise; below it, run the numbers first.

Two cards with the same balance — which do you pay first?

The higher rate first. When two balances are equal, the debt snowball's tie-breaker sends every extra dollar to the card with the higher APR. In the $5,000 at 29% and $5,000 at 15% example, paying the 29% card first clears both in 28 months for $2,311.34; paying the 15% card first takes 31 months and $3,320.47 — $1,009.13 and 3 months more.

How much does the snowball method cost compared with the avalanche?

Across twelve portfolios from $5,000 to $60,000, each with $300 a month on top of its minimums, the snowball paid $2,506.24 more interest on average and $1,342.41 at the median, finishing 5.1 months later. The avalanche was cheaper in 11 of the 12; the twelfth tied at exactly $0.00 because all four balances and minimums were equal. Three of the twelve finished in the same month either way.

How much of a minimum payment goes to principal?

On a $5,000 card at 24% with a $125 minimum, $25 of the first payment is principal and $100 is interest. Twelve months retire $335.29 of the $1,500 paid, and principal does not beat interest until month 48. The card takes 82 months and $5,159.49 to clear.

Does an extra $50 a month help?

On a $5,000 card at 24% with a $125 minimum, $50 a month takes the payoff from 82 months to 43 and the interest from $5,159.49 to $2,488.04. The first $25 buys 26 months and the second buys 13, and starting the same $50 a year late costs $743.32 and 8 months.

What isn't answered here

Some of the most-searched questions around debt are legal or regulatory — time limits on collections, what happens if you stop paying, changes to debt-collection rules. Those turn on your jurisdiction and on rules that change, so this page does not answer them. Check your local regulator or a licensed advisor for those, and use this page for the arithmetic.