Credit Card Minimum Payment Calculator

Paying only the minimum is a trap. See how many years and how much extra it really costs.

How the Credit Card Minimum Payment Calculator works

Each month the minimum payment is a small percent of your balance plus that month's interest (or a fixed floor like $25 to $35, whichever is larger), so as the balance falls the minimum falls with it and payoff drags on for years or decades. This shrinking-target design is the entire mechanism behind the minimum-payment trap.

The variables are: B = the current statement balance in dollars, r = the monthly periodic rate (the APR divided by 12, so a 22% APR is 0.22 / 12 = 0.018333), p = the percent-of-balance factor the issuer uses (commonly 1%, sometimes 2%), and F = the dollar floor (often $25 to $35). Each month the interest charged is B x r, and the minimum due is the greater of (p x B + B x r) or F.

Here is exactly what the calculator does internally:

1. Converts your APR to a monthly rate (APR / 12) and your minimum-percent rule to a decimal.
2. For month one, computes interest = B x r, then the minimum due = max(p x B + interest, F).
3. Subtracts the interest portion to find how little principal you actually paid, then reduces the balance by that principal.
4. Recomputes a smaller minimum on the new, lower balance and repeats, logging months, total interest, and total paid.
5. Switches to the dollar floor once the percent-based minimum drops below it, which is what stretches the final years into a long, flat tail.
6. Stops when the balance hits zero and reports payoff time and total interest.

Edge cases it handles: a minimum that does not even cover the interest (the balance would grow forever, so the tool flags it); the floor takeover near the end; and any new purchases, which would reset the balance upward and restart the chase. Unlike the credit card payoff calculator, which assumes a fixed dollar payment, this tool models the falling minimum so you see the trap, not the escape.

Example calculation

Here are three balances paid at the minimum only, every figure recomputed with the same rule (1% of balance + that month's interest, $25 floor) so the examples are directly comparable.

Example 1 - a $5,000 balance at 22% APR. The first minimum is 1% of $5,000 plus one month's interest ($5,000 x 0.22 / 12 = $91.67), so $50 + $91.67 = $141.67. Of that, only $50 touches principal. Paying the shrinking minimum every month, the balance takes 230 months - about 19.2 years - and costs $8,099.77 in interest, a $13,099.77 total. Pay a fixed $190.95 instead and you are debt-free in 37 months for just $1,874.32 of interest.

Example 2 - a $12,000 balance at 26% APR. Month one charges $260 of interest ($12,000 x 0.26 / 12), and the minimum is $120 + $260 = $380. At the shrinking minimum only, payoff takes 325 months - about 27.1 years - and racks up $24,844.39 in interest, more than double the original balance. A fixed $400 a month (barely above the first minimum) clears it in 49 months with $7,590.64 of interest.

Example 3 - a $3,000 balance at 19% APR. First interest is $47.50, first minimum $30 + $47.50 = $77.50. Minimum-only payoff runs 173 months - about 14.4 years - and $3,760.34 in interest. A fixed $109.97 ends it in 36 months for $958.83.

The pattern is brutal and identical: a payment only slightly above the first minimum cuts payoff from decades to roughly three to four years and saves thousands, because a fixed payment keeps killing the same dollar amount of principal while a shrinking minimum chases the balance down forever and never lets you build momentum.

Tips for using the Credit Card Minimum Payment Calculator

• Freeze your payment at the first month's minimum dollar amount and never let it drop. On a $5,000 balance at 22%, holding $141.67 fixed pays the card off in about 4.8 years instead of 19.2, and cuts interest from $8,099.77 to about $3,121 - roughly $4,978 saved, just by not letting the number shrink.
• Read the yellow box on your statement. Federal law requires issuers to print how long minimum-only payments will take and the fixed 36-month payment that escapes the trap - that box is the cheapest financial advice you will ever get, printed free every month.
• A minimum payment is engineered to be mostly interest in the early years. On the $12,000 at 26% example, the first $380 minimum includes $260 of pure interest, so only $120 reduces what you owe - confirm the principal split before you assume you are making progress.
• If your minimum ever fails to cover the month's interest, your balance grows even while you pay. Check that your payment exceeds balance x APR / 12; if it does not, the debt is mathematically un-payable at that level and the minimum is pure quicksand.
• Pay the statement balance in full by the due date and you owe zero interest thanks to the grace period - the minimum-payment trap math only ever applies to a balance you carry past the due date.
• Watch for the floor tail: once 1% of your balance drops below the $25 to $35 floor, the minimum stops shrinking but the payment is now almost all interest, which is why the last stretch of a minimum-only payoff can drag on for years with the balance barely moving.
• A balance transfer to a 0% intro APR card turns your minimum into nearly all-principal during the promo window - but model the transfer fee (often 3% to 5%) against the interest you would otherwise pay before you move it.
• Set autopay for a fixed dollar amount, not 'minimum due.' Choosing 'minimum due' in autopay is the single setting that silently locks people into the decades-long trap by letting the payment fall every month automatically.
• Attack the highest-APR card first while paying minimums on the rest (the avalanche method), then roll each freed-up payment forward. Sequence multiple cards with the <a href="/debt-payoff-calculator/">debt payoff calculator</a> to minimize total interest.
• Even an extra $25 a month above the minimum goes 100% to principal. On the $3,000 at 19% balance, bumping the payment to about $110 fixed turns a 14-year minimum-only payoff into 3 years and saves over $2,800 in interest.

Minimum payment vs a fixed payment: the trap in one table

The difference between paying the shrinking minimum and paying a fixed dollar amount is the difference between decades of debt and a few years - even when the fixed amount is the very same number you paid in month one. A minimum payment falls as the balance falls, so the principal you kill each month also shrinks; a fixed payment stays put, so a growing share of it hits principal every single month.

Here is a $5,000 balance at 22% APR under three approaches, every figure recomputed with a $25 floor:

Just holding the payment flat at the very first minimum - paying the same $141.67 forever instead of letting it shrink - cuts payoff from 19.2 years to about 4.8 and saves roughly $4,978 in interest. That is the whole escape: stop letting the number drop. To model an exact fixed payment to a target date, switch to the credit card payoff calculator, which assumes the constant payment this tool deliberately does not.

Why issuers profit from minimums (and how the trap is built)

A percent-of-balance minimum is designed so that the slower you pay, the more total interest the issuer collects - the falling payment is a feature, not a bug. When your minimum is mostly interest, the principal barely moves, so next month's balance is almost as high, which keeps the interest meter running near full speed for years.

The structure quietly maximizes interest in three ways unique to a shrinking minimum:

• The shrinking target. As the balance drops, so does the required payment, so you never gain the momentum a fixed amount would build - the payment always retreats just as you start to win.
• The floor tail. Once 1% of the balance falls below the $25 to $35 floor, you finally pay a flat amount, but by then it is nearly all interest, dragging the final years out for a balance that barely shrinks.
• Interest-on-interest. A carried card balance compounds: any unpaid interest joins the balance and earns more interest, unlike a simple-interest setup. See how that compounding differs in the simple interest calculator.

On the $12,000 at 26% example, minimum-only payments hand the issuer $24,844.39 in interest - more than double the amount borrowed. That is not an accident of your behavior; it is the arithmetic the shrinking minimum was built to produce.

The CARD Act minimum-payment warning box explained

Since 2010, the federal Credit CARD Act has required every monthly statement to show, in a boxed disclosure, how long it will take to pay off your balance making only minimum payments and what fixed payment would clear it in 36 months. That box exists specifically to expose the trap this calculator models.

A typical box on a $5,000 balance at 22% would read like this:

The 36-month column is the most useful number on your statement: it is the issuer's own math for the fixed payment that escapes the trap fast. Plug that figure in as a fixed payment and you will see the same multi-thousand-dollar interest savings. The federal CFPB credit card resources hub explains the rules behind this disclosure and why the box was mandated.

Common minimum-payment mistakes to avoid

The most expensive mistakes come from treating the minimum as a target rather than a floor, and from misreading what the shrinking payment actually does to your balance. Avoid these six:

• Setting autopay to 'minimum due.' This is the single setting that locks in the decades-long payoff by letting the payment fall every month; choose a fixed dollar amount instead.
• Assuming the minimum makes real progress. Early minimums are mostly interest - on $12,000 at 26%, the first $380 includes $260 of interest and only $120 of principal.
• Letting the payment shrink with the balance. Hold the dollar amount flat; the falling minimum is the trap itself, and freezing it can turn 19 years into under 5.
• Adding new purchases while carrying a balance. You lose the grace period, so every new charge accrues interest from day one and re-inflates the balance the minimum is chasing.
• Paying minimums on a high-APR card while overpaying a low-APR one. Order debts by rate - the debt payoff calculator shows the avalanche sequence.
• Ignoring that card debt compounds. Carried interest joins the balance and earns more interest, unlike most installment loans, which is why a minimum-only balance grows so stubbornly.

How to model minimum payments by hand or in Excel

There is no single closed-form formula for a shrinking minimum, so you build a month-by-month amortization table in Excel - but you can use one built-in function to find the fixed payment that escapes the trap.

To model the minimum-only path, set up columns and drag down:

• Cell A2 = balance (5000). B2 = monthly interest =A2*0.22/12. C2 = minimum due =MAX(0.01*A2+B2,25). D2 = principal paid =C2-B2. A3 = new balance =A2-D2.
• Drag the row down until the balance reaches zero; the row count is your payoff in months. For $5,000 at 22% you will fill about 230 rows - roughly 19.2 years.

To find the fixed payment for any target payoff, use the PMT function: =PMT(0.22/12, 36, -5000) returns $190.95, the payment to clear $5,000 at 22% in 36 months. To find how long a given fixed payment takes, use NPER: =NPER(0.22/12, -190.95, 5000) returns about 36. Note the sign convention - enter the present balance as a positive present value and the payment as negative (a cash outflow). These functions assume a constant payment, which is exactly why they cannot model the shrinking minimum itself; the amortization table is the only honest way to see the trap unfold row by row.

Is your minimum payment reasonable? Benchmarks to judge it

As a rule of thumb, if your minimum payment is less than about 3% of your balance, or if it is mostly interest, you are deep in the trap; a healthy fixed payment clears the card in 36 months or less. Use these 2026 reference numbers to judge where you stand:

For perspective on the interest-share range: a $6,000 balance at 24.99% with a 1% + interest minimum sends about 68% of the first payment to interest, while a $5,000 balance at 22% with a 2% + interest minimum sends about 48%. These are general ranges, not any one issuer's current rate; check your own statement and cardholder agreement. If card payments are crowding your budget, also check how they weigh on your borrowing capacity with the debt-to-income ratio calculator.

Minimum-payment trap: how long $X drags on and what it really costs

Paying only the minimum costs you years and often more interest than the amount you charged, because the payment shrinks as the balance falls. The table below recomputes the true cost of a typical 2% of balance + interest minimum at a 24% APR across common balances, alongside the original amount so you can see how far total interest passes principal. The CARD Act warning box on your statement makes the same point: a fixed 3-year payment is far cheaper than letting the minimum decline.

Assumptions: 24% APR, minimum = 2% of balance + that month's interest, with a $25 floor. Drop the formula to 1% of balance + interest and it gets far worse - a $6,000 balance then takes about 21 years and roughly $10,887 in interest. Lock your payment at the first minimum instead of letting it shrink and most of these timelines fall to under five years.

How to escape the trap: practical exit routes

You escape the minimum-payment trap the moment you fix your payment in dollars instead of paying the shrinking minimum - and several tactics make that fixed payment go further. Ranked roughly by impact:

• Freeze the payment. Pay at least the first month's minimum dollar amount every month, never less. On $5,000 at 22% this alone cuts a 19.2-year payoff to about 4.8 years and saves roughly $4,978.
• Pay more than the minimum, even a little. Every extra dollar above the minimum goes 100% to principal. An extra $25 a month on the $3,000 at 19% example saves over $2,800.
• Use a 0% balance transfer. During the intro window your whole payment attacks principal; weigh the 3% to 5% transfer fee against the interest avoided.
• Avalanche multiple cards. Fixed payments on the highest-APR card first; sequence them in the debt payoff calculator.
• Consolidate to a fixed-rate installment loan if the rate is meaningfully lower, converting revolving debt with a shrinking minimum into a defined payoff schedule.

The common thread: replace a payment that falls with one that stays. That single change is what turns the trap's arithmetic against the issuer and back in your favor.

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Credit Card Payoff Calculator · Debt Payoff Calculator · Debt-to-Income Ratio Calculator · Simple Interest Calculator · Compound Interest Calculator · Loan Calculator

For a related deep dive, see CFPB credit card resources.

Credit Card Minimum Payment Calculator — frequently asked questions

Why is it so bad?

Minimums fall as the balance drops, so most of each payment is interest for a very long time.

What should I pay?

Pay a fixed amount well above the minimum, or as much as you can afford each month.

Why is the minimum so harmful?

It declines with the balance, so most of each payment is interest for many years.

How is the minimum calculated?

Typically about 1% of the balance plus accrued interest, with a small dollar floor.

How long does it take to pay off $6,000 at 24.99% APR making only the minimum?

About 21 years - 254 months - if your minimum is 1% of the balance plus that month's interest with a $25 floor. Over that time you pay roughly $11,360 in interest on a $6,000 balance, so you hand the issuer almost twice what you borrowed (about $17,360 total). The minimum keeps shrinking as the balance falls, which is exactly why the payoff drags on for two decades. Try our <a href="/credit-card-minimum-payment-calculator/">minimum payment calculator</a>.

Can credit card interest end up costing more than the original balance?

Yes, and on minimum-only payments it usually does. A $6,000 balance at 24.99% paid at 1% + interest costs about $11,360 in interest - 1.9 times the amount borrowed. At higher APRs it is worse: $7,500 at 27% runs about $15,699 in interest, roughly 2.1 times the balance. The longer the shrinking minimum stretches payoff, the more total interest passes the principal you actually charged.

How much of my first minimum payment goes to interest on a $6,000 balance at 24.99%?

About 68% of it. On $6,000 at 24.99% APR, one month of interest is roughly $124.95, and a 1% + interest minimum is about $184.95 - so only around $60 reduces the balance. That tiny principal cut is why a $6,000 balance can take 21 years to clear on minimums. A lower-rate, larger-principal card looks better: $5,000 at 22% with a 2% + interest minimum sends about 48% to interest.

Why does paying only the minimum take decades to pay off a card?

Because the minimum is a percent of the balance, so it shrinks every single month as the balance falls. Each smaller payment clears less principal, which keeps next month's balance high, which keeps interest high - a slow spiral. An $8,000 balance at 25% on a 1% + interest minimum takes about 283 months, roughly 23.6 years, and costs about $15,532 in interest. The math only breaks when you stop letting the payment shrink.

What is the minimum-payment warning box on my credit card statement?

It is a CARD Act disclosure that must appear on every monthly statement, showing how long minimum-only payments take and the cheaper alternative. By law it lists the years and total cost of paying just the minimum, plus the fixed payment that clears the balance in 3 years. For example, a $5,000 balance at 22% needs about $191 per month to be paid off in 36 months versus roughly 19 years on minimums - the box exists to make that gap impossible to miss.

What fixed payment pays off $5,000 at 22% APR in 3 years like the statement box shows?

About $191 per month. That fixed amount clears $5,000 at 22% in 36 months and costs roughly $1,874 in interest, for about $6,874 total. Compare that to the shrinking 1% + interest minimum, which drags on about 19 years and costs $8,100 in interest. The CARD Act box on your statement is required to print this 3-year figure so you can see the cheaper path. See our <a href="/credit-card-payoff-calculator/">credit card payoff calculator</a>.

How much faster do I pay off a card if I lock my payment at the first minimum instead of letting it shrink?

Dramatically faster, often cutting two decades to a few years. On $6,000 at 24.99%, the first 1% + interest minimum is about $185. Keep paying that fixed $185 every month and you finish in about 4.6 years with roughly $4,100 in interest - versus 21 years and about $11,360 if you let the minimum shrink. Freezing the payment at today's minimum is the single easiest escape from the trap; it costs you nothing extra this month.

Is paying the minimum on a $10,000 balance at 21% ever a good idea?

Only as a short-term emergency, never as a plan. A 2% + interest minimum on $10,000 at 21% takes about 14.3 years and costs roughly $8,406 in interest - close to the balance itself. A fixed $377 per month clears it in 3 years for about $3,560 in interest. If cash flow forces minimums for a month or two that is survival, but treating the minimum as your real payment is how a one-time purchase becomes a 14-year debt.

How do I calculate a credit card minimum payment by hand?

Multiply the balance by the percent rate, add that month's interest, then take whichever is larger - that result or the dollar floor. For a $5,000 balance at 22% APR with a 2% + interest formula: monthly interest is $5,000 x (0.22 / 12) = $91.67, the percent part is $5,000 x 0.02 = $100, so the minimum is $191.67. Most issuers also enforce a floor near $25 to $35, used only when the calculated amount falls below it.

How do I model minimum-only payoff in Excel?

Build a month-by-month table and let one row reference the row above. In column A put the starting balance, then each month compute interest as Balance x (APR / 12), the minimum as MAX(Balance x MinPct + Interest, 25), and the new balance as Balance + Interest - Minimum. Copy the row down until the balance hits zero; the number of rows is your payoff months. For $6,000 at 24.99% with a 1% formula, you will fill about 254 rows - roughly 21 years.

At what balance does the flat $25 minimum kick in on a 2% + interest card at 24% APR?

Around $625. With a 2% + interest formula at 24% APR, the calculated minimum is balance x 0.02 plus one month of interest (balance x 0.24 / 12 = balance x 0.02), which together equal balance x 0.04; setting that equal to $25 gives $625. Below about $625 the issuer charges the $25 dollar floor instead of the percent formula, which is actually helpful - the fixed floor finally pays down principal faster than a still-shrinking percent would.

Why do credit card issuers set minimum payments so low?

Because low minimums maximize the interest they earn while keeping the payment affordable enough that you keep the balance. A minimum near 1% to 2% of the balance plus interest barely dents principal, so the balance - and the interest charged on it - stays high for years. On a $15,000 balance at 23%, a 1% + interest minimum stretches payoff to about 28.5 years and roughly $27,660 in interest. The slower you pay, the more they collect.

How much does a $3,000 balance at 20% APR really cost on minimum payments?

About $3,983 in interest over roughly 14.7 years if the minimum is 1% + interest, for about $6,983 total - more than double the $3,000 you charged. Switch to a fixed $100 a month and you finish in about 3.5 years with around $1,194 in interest. A balance you could clear in under four years becomes a 15-year obligation purely because the minimum shrinks each month.

Does a higher APR or a higher balance hurt me more on minimum payments?

A higher balance lengthens payoff far more than a higher APR does, because the percent-based minimum scales with the balance. At a fixed 2% + interest minimum, a $5,000 balance takes about 11.2 years at 18% and 11.8 years at 30% - APR barely moves the timeline. But raising the balance from $2,000 to $10,000 at 24% stretches payoff from about 7.8 years to 14.4 years. Both raise total interest; balance drives the years.

Is it worth paying $50 over the minimum each month on a $5,000 card at 24%?

Yes - even a small fixed amount over the minimum saves years and thousands. A 2% + interest minimum on $5,000 at 24% takes about 11.5 years and roughly $4,625 in interest. Paying a fixed $250 - about $50 over the first minimum and never letting it drop - clears the balance in about 2.2 years and roughly $1,449 in interest. That single habit saves over nine years and about $3,000.

What is the difference between a minimum payment and a fixed payment on the same card?

A minimum payment shrinks as the balance falls; a fixed payment stays the same until the balance is gone. That difference is everything. On $3,000 at 21%, a 1% + interest minimum takes about 14.8 years and roughly $4,208 in interest, while a fixed $100 a month takes about 3.6 years and roughly $1,291. The fixed payment puts steadily more toward principal each month, so the debt collapses instead of crawling.

Guides & articles

• Why Minimum Payments Take Decades to Pay Off (and How to Escape)
• What the Credit Card Minimum Payment Warning Box Means

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