Numbers from this site's public API on a 5-card $60,000 portfolio at 15-25% APR. Open the calculator with your own balances and rates and the same numbers come out in real time.
The example portfolio
$60,000 is the size where the minimum payments alone cross $1,500 a month. This page uses five US credit cards — the same five-card shape as the $60K in 6 months and $60K in 12 months case studies, so the three deadlines can be read side by side on one portfolio. Card A carries $18,000 at 25% APR with a $450 minimum; Card B $13,200 at 22% with a $330 minimum; Card C $12,000 at 20% with a $300 minimum; Card D $10,200 at 17% with a $255 minimum; Card E $6,600 at 15% with a $165 minimum. Every minimum is exactly 2.5% of its balance, and the five of them add up to $1,500 a month.
The rates run from 25% down to 15%, and the largest balance carries the highest rate. Weighted by balance, the portfolio's rate is 20.88% a year: $18,000 × 25%, $13,200 × 22%, $12,000 × 20%, $10,200 × 17% and $6,600 × 15% come to $12,528.00 of annual interest on a $60,000 balance. One twelfth of that is 1.74%, which on the opening balance is $1,044.00 for the first month.
To clear all five in twenty-four months, the snowball method needs $3,616 a month, which is $2,116 above the minimums. Avalanche needs less — $3,492 — because it goes straight at the 25% card. Every figure on this page is for the snowball plan unless it says otherwise.
Two years, two paths: the plan ends at zero, the minimums at $46,725.18
Here is the part that decides whether a two-year plan is worth doing at all. Put $3,616 a month on this portfolio and after twenty-four months it is gone. Put the $1,500 in minimums on the same portfolio for the same twenty-four months and you will have handed over $36,000 — and still owe $46,725.18.
Read that again, because it is not a rounding argument. Of the $36,000 the minimums take out of your account, $22,725.18 is interest and only $13,274.82 is principal. Two full years of payments have moved the balance 22.12% and left 77.88% of it standing. The plan, over the same twenty-four months, sends $73,943.21 and ends at zero. The difference between the two paths is not effort in the abstract — it is $37,943.21 of extra money, spread across two years, and it is the whole gap between finishing and not finishing.
| Months in | The $3,616 plan | The $1,500 minimums |
|---|---|---|
| 6 months | $44,540.59 | $57,149.88 |
| 12 months | $29,212.66 | $54,008.42 |
| 18 months | $14,318.99 | $50,544.88 |
| 24 months | $0.00 | $46,725.18 |
The shape of the two curves is the whole story, and it is drawn to scale below. The plan's balance falls by roughly $15,000 every six months — $15,459.41, then $15,327.93, then $14,893.67, then the last $14,318.99. The minimums' balance falls by $2,850.12 in the first six months and $3,819.70 in the last six, because the minimum is 2.5% of a balance that barely moves. Two years of minimums and the line has hardly tilted.
What the two years cost
The twenty-four months cost $13,943.21 of interest, and the total that leaves your account is $73,943.21 — the $60,000 balance plus that interest. The interest is 23.24% of the balance you started with and 18.86% of everything you send.
The payment is $3,616 in month 1 and it steps down as cards leave: $3,616 in months 1 to 3, $3,451 in months 4 to 8, $3,196 in months 9 to 13, $2,896 in months 14 to 18, $2,566 in months 19 to 23 and $2,550.21 in month 24. Only part of that is fixed. The $2,116 of new money never moves; the floor inside the payment does, because it is the sum of the minimums still owed on the cards that are still open — $1,500 while all five are open, $1,335 once Card E is gone, $1,080 once Card D is gone, $780 once Card C is gone, and $450 for the last stretch with only Card A left. The last payment is the only one that breaks the pattern, and it breaks it downward: $450 plus $2,116 would be $2,566, but the balance runs out first, so month 24 pays $2,550.21 — $15.79 less than the pattern. The twenty-four payments add to $73,943.21, which is $12,840.79 less than twenty-four flat $3,616 payments would cost.
The interest inside the payment falls faster than the payment does: $1,044.00 in month 1, then $1,010.11, $975.77, $940.83, $904.08, $866.80, $828.97, $790.56, $747.36, $706.02, $663.96, $621.20, $577.72, $529.80, $486.17, $441.74, $396.49, $350.41, $298.31, $251.07, $202.84, $153.61, $103.35 and $52.04 in month 24. The principal barely notices: it runs $2,572.00, $2,605.89, $2,640.23, $2,510.17, $2,546.92, $2,584.20, $2,622.03, $2,660.44, $2,448.64, $2,489.98, $2,532.04, $2,574.80, $2,618.28, $2,366.20, $2,409.83, $2,454.26, $2,499.51, $2,545.59, $2,267.69, $2,314.93, $2,363.16, $2,412.39, $2,462.65 and $2,498.17, a spread of just $392.75 from best month to worst. The balance goes $57,428.00, $54,822.11, $52,181.88, $49,671.71, $47,124.79, $44,540.59, $41,918.56, $39,258.12, $36,809.48, $34,319.50, $31,787.46, $29,212.66, $26,594.38, $24,228.18, $21,818.35, $19,364.09, $16,864.58, $14,318.99, $12,051.30, $9,736.37, $7,373.21, $4,960.82, $2,498.17, zero. At the halfway mark — the end of month 12 — 48.69% of the balance is left, but 72.43% of the interest has already been paid, because interest is charged on a balance that is still large in the early months.
Snowball is not the cheapest way to spend those twenty-four months. Avalanche, run at the same $3,616 a month, is charged $11,243.80 — $2,699.41 less, which is 19.36% of the snowball interest bill — and it finishes in 23 months, one month ahead of the snowball plan. Avalanche can also clear the balance at its own lower threshold of $3,492, and at that smaller payment it takes the full twenty-four months and costs $11,721.31; the $11,243.80 above is the equal-payment figure, so the two numbers differ by the payment they are measured at, not by the method. What the method changes is the order the cards leave in: snowball clears Card E in month 3, Card D in month 8, Card C in month 13, Card B in month 18 and Card A in month 24, while avalanche clears Card A in month 8, Card B in month 14, Card C in month 18, Card D in month 21 and finishes Card E in month 23. That 19.36% sits almost exactly on the 19.4% the snowball gives up across the twelve portfolios we ran — coincidence at this size rather than a rule: the twelve together were charged $155,178.74 on the snowball, and the order alone accounted for $30,074.90 of it, in the twelve-portfolio run.
Where the $2,116 comes from
This is the part that decides whether the plan happens, so it is worth stating plainly: you need $2,116 a month above the $1,500 you already pay — 1.41 times the minimums — and over the twenty-four months the new money alone is $50,784, which is 84.64% of the balance. At $25 an hour after tax that is roughly 39 extra hours a week, which is a part-time job rather than a second one. The six-month version of the same payoff asks for $9,666 a month and the twelve-month version $4,648; a two-year plan asks for less than a quarter of the six-month figure, measured above the same $1,500 in minimums.
What that buys is worth naming: the plan pays 2.41 times the minimums and finishes the job in 24 months instead of 87 — 3.625 times faster for a payment that has not even tripled. Two things soften it further. The floor narrows on its own, so the payment drops to $3,451 by month 4 and $2,566 by month 19 without you changing anything. And the balance is down to $29,212.66 by month 12 and $14,318.99 by month 18, so the second half of the plan is carrying a pile less than half the size of the first.
Reproduce these numbers
Every figure on this page comes from this site's public API. Post the five balances, their rates, their minimums and extra: 2116 to /api/payoff and you get the same months, the same $13,943.21 and the same per-card breakdown. Two things that trip people up: APR goes in as a percentage (25, not 0.25), and extra is the amount above your total minimums, not your total payment — $2,116 here, which is what turns the $1,500 in minimums into $3,616 a month. Or just open the calculator and type your balances in — same engine, no payload.
If your target is a different size or a different deadline, the same analysis is in the $60K in 12 months, $60K in 6 months, $50K in 2 years, $50K in 12 months, $50K in 6 months, $40K in 1 year, $40K in 6 months, $30K in 6 months, $20K in 6 months, $15K in 6 months, $10K in 6 months, $5K in 6 months, $5K in 1 year, $10K, $15K, $20K, $25K, $30K and $100K case studies, plus a 36-second walkthrough of the $25K case on YouTube. Shorter answers to the most common payoff questions live in the payoff questions hub.
Frequently asked
How much do I have to pay a month to clear $60,000 in two years?
On the five-card example here, $3,616 a month clears the $60,000 in twenty-four months on the snowball method, which is $2,116 above the $1,500 in minimums. Avalanche needs less — $3,492 — because it goes at the 25% card first.
How much interest do I pay on $60,000 over two years?
The snowball plan is charged $13,943.21 and the total that leaves your account is $73,943.21 — the $60,000 balance plus that interest. The interest is 23.24% of the balance you started with and 18.86% of everything you send. Run at the same $3,616 a month, avalanche is charged $11,243.80, which is $2,699.41 less — 19.36% of the snowball interest bill.
What do two years of minimum payments leave on $60,000?
$46,725.18 still owed. Twenty-four months of the $1,500 minimums move $36,000 out of your account, of which $22,725.18 is interest and only $13,274.82 reaches principal, so the balance has come down 22.12% and 77.88% of it is still there. The same twenty-four months on the $3,616 plan send $73,943.21 and end at zero. Paying the minimums alone to the end takes 87 months and costs $47,341.20 in interest, a total bill of $107,341.20.
Why is the payment $3,616 in month 1 and less later on?
Because only part of it is fixed. The $2,116 of new money never moves, but the floor inside the payment does: it is the sum of the minimums still owed on the cards that are still open, so it is $1,500 while all five are open, $1,335 once Card E is gone, $1,080 once Card D is gone, $780 once Card C is gone, and $450 for the last stretch with only Card A left. That turns into payments of $3,616 in months 1 to 3, $3,451 in months 4 to 8, $3,196 in months 9 to 13, $2,896 in months 14 to 18, $2,566 in months 19 to 23 and $2,550.21 in month 24, which adds to $73,943.21 — $12,840.79 below the $86,784 that twenty-four flat $3,616 payments would total. The last payment is the only one that breaks the pattern, and it breaks it downward by $15.79, because the balance runs out before the payment does.
Does snowball versus avalanche matter on $60,000 over two years?
It is worth $2,699.41, which is 19.36% of the snowball interest bill — and on this payment it also finishes a month earlier. Both figures are for the same $3,616 a month: snowball takes 24 months and pays $13,943.21, avalanche takes 23 months and pays $11,243.80. Avalanche can also clear the balance at its own lower threshold of $3,492, and at that smaller payment it takes the full 24 months and costs $11,721.31 — a different payment, not a different answer. The payoff orders differ too: snowball clears Card E, then Card D, then Card C, then Card B and finally Card A, while avalanche clears Card A, then Card B, then Card C, then Card D and finishes Card E in month 23.
What if I only pay the minimums on $60,000?
The $1,500 in minimums clears the balance in 87 months — more than seven years — and costs $47,341.20 in interest, a total bill of $107,341.20. That is a saving of $33,397.99 against the two-year plan's $13,943.21. The same-term comparison is the sharper one: both paths spend twenty-four months, the minimums move $36,000 and finish at $46,725.18 still owed, the plan moves $73,943.21 and finishes at zero.
What is the blended interest rate on this portfolio?
20.88% a year, weighted by balance: $18,000 at 25%, $13,200 at 22%, $12,000 at 20%, $10,200 at 17% and $6,600 at 15% work out to $12,528.00 of annual interest on $60,000. One twelfth of that is 1.74%, which is $1,044.00 on the opening balance — and $1,044.00 divided by $60,000 is exactly 20.88% divided by twelve. By month 24, under the plan, the monthly interest is down to $52.04.
How much new money do I have to find each month for a two-year $60,000 payoff?
$2,116 a month above the $1,500 you are already paying — 1.41 times the minimums — which over the twenty-four months is $50,784 of new money, 84.64% of the balance. At $25 an hour after tax that is roughly 39 extra hours a week, which is a part-time job. It is also the smallest monthly ask of any deadline on this portfolio: the six-month version needs $9,666 a month and the twelve-month version $4,648, both measured above the same $1,500 in minimums.