A debt payoff calculator shows how many months a balance takes to clear at a fixed monthly payment, how much interest accrues on the way, and what each payment actually covers. This one walks a single balance month by month in whole cents, so the running balance, the principal, and the printed schedule agree to the last cent.
A payoff period is the number of months a balance needs to reach zero once you keep paying the same amount every month. A non-amortizing balance is one where the payment does not cover a single month of interest, so no principal ever comes off and the balance never clears.
The Federal Reserve's G.19 consumer credit release dated September 8, 2026 reports an average credit card APR of 20.94% on all commercial bank card accounts and 22.15% on accounts that were assessed interest. At 22%, a $6,500 balance charges $119.17 in the first month. A $150 payment against it retires $30.83 of principal. The payment looks large, and the balance barely moves.
Questions about paying off a specific amount usually run the other way: you have a balance and a date in mind, and you want to know what monthly payment reaches it. This tool runs forward, from a payment to a payoff date, so the required payment has to be derived first and then entered. The section Paying Off a Set Amount by a Date does that derivation for $15,000, $20,000, and $30,000, and each figure below can be reproduced in the calculator.
Whether your goal is paying down credit card balances, personal loans, or medical bills, this debt payoff calculator gives you an exact payoff schedule and lifetime interest cost.
How to Use the Debt Payoff Calculator
Three fields drive the calculation, and the tool uses them exactly as written. A fourth field sets the display currency. Nothing in the model is specific to credit cards, so a car loan, a personal loan, or a private balance at a simple annual rate all work the same way. A hospital or utility bill that carries a simple annual rate runs through the same three fields, which makes this a usable bill payoff calculator for those debts as well.
| Field | What to enter | Rules the tool applies |
|---|---|---|
| Current balance | What you owe today, in whole currency units | Above zero, up to 1,000,000,000 |
| Annual interest rate | The APR as a percentage, so 22.5 means 22.5% | Above zero, at most 100% |
| Monthly payment | What you will pay every month, in the same currency | Above zero, and larger than one month of interest |
| Currency | Display currency, 36 options, US dollars by default | Formatting only. No conversion is applied, so the balance must already be in the currency you pick. |
What You Need Before You Start
Take the APR from the account summary page rather than the account-opening letter. Card APRs move, and a promotional rate that expires halfway through a seven-year plan does not match the constant rate this calculator holds. Then pick the payment you can repeat. The model assumes the same amount leaves your account every month until the balance reaches zero, so a single missed month puts your real statement out of step with the schedule printed here.
Whether you describe this tool as a debt payoff calculator, a debt repayment calculator, or a calculator for paying off debt, the underlying mathematics remains identical. Regardless of search phrasing, all queries resolve to the same core inputs: your opening balance, annual interest rate, and monthly payment.
What Each Result Field Tells You
The results panel is short, and each line answers a different question. Reading them in this order makes the plan easier to act on.
| Field | What it means | How to use it |
|---|---|---|
| Payoff time | The payoff period in months and years | Compare it against the date you actually need the debt gone. |
| Months to pay off | The same payoff period as a whole number of months | The figure to use for a calendar or a target month. |
| Total interest | The cost of borrowing across the whole plan | The number to weigh against the speed of paying off. |
| Total paid | Every payment added together | Principal plus interest. Anything above the opening balance is interest. |
| First month interest | The interest charged in month one | Your rough floor. A payment at or below this figure never clears the balance. |
| Principal repaid | The opening balance, cleared in full | Shown so you can see the split between principal and interest. |
| Interest vs principal bar | How much of total paid is interest | The visual version of the cost of waiting. |
| Payoff schedule | Every month, with payment, principal, interest, and balance | Copy it or print it, then mark the rows as you go. |
The Month-by-Month Walk: Interest, Principal, and the Last Payment
Three lines produce every number on the schedule. The monthly rate is the annual rate divided by twelve. This month's interest is the opening balance times the monthly rate. The principal you retired is the payment minus that interest, and the new balance is the old balance minus the principal.
The interest charge is rounded to the nearest cent each month, and the balance is carried forward in whole cents for the entire walk. That rounding is why a real card balance and this schedule line up instead of drifting apart month after month.
Credit card interest is added to a balance once a month and is calculated on the balance carried during that month. A debt payoff calculator follows the same sequence. The monthly rate is the annual percentage rate divided by twelve. The calculator multiplies the opening balance by that rate, subtracts the interest from your payment to find the principal you actually reduced, and subtracts the principal from the balance. The result is a table of consecutive months in which interest falls and principal rises, because the balance generating the interest keeps shrinking. A $6,500 balance at 22% with a $150 payment carries $119.17 of first month interest, leaves $30.83 of principal, and takes 88 payments to clear, ending with a trimmed payment of $12.42. The walk runs in whole cents and stops the month the balance reaches zero.
A $6,500 Balance at 22% with $150 a Month
These rows come straight from the tool with a $6,500 balance, a 22% annual rate, and a $150 monthly payment. The result is 88 months, or 7.3 years, $6,562.42 of total interest, and $13,062.42 of total paid. Interest accounts for 50.2% of everything paid.
| Month | Payment | Principal | Interest | Balance after payment |
|---|---|---|---|---|
| 1 | $150.00 | $30.83 | $119.17 | $6,469.17 |
| 2 | $150.00 | $31.40 | $118.60 | $6,437.77 |
| 12 | $150.00 | $37.65 | $112.35 | $6,090.32 |
| 24 | $150.00 | $46.83 | $103.17 | $5,580.86 |
| 36 | $150.00 | $58.23 | $91.77 | $4,947.28 |
| 87 | $150.00 | $147.08 | $2.92 | $12.20 |
| 88 | $12.42 | $12.20 | $0.22 | $0.00 |
Month 36 is the halfway mark on time and still leaves $4,947.28 outstanding. The final payment is trimmed to the exact principal still owed, so the balance lands on zero with no residual and no extra charge.
What Each Payment Covers
The payment is the only lever you hold inside the calculator, and it acts on both the payoff period and the interest total. That is what separates a full payoff walk from a simple interest estimate, because the same balance produces a different number every time you change the payment. On the same $6,500 balance at 22%:
| Monthly payment | Months to pay off | Total interest | Total paid |
|---|---|---|---|
| $50.00 | Refused | Refused | Refused |
| $100.00 | Refused | Refused | Refused |
| $150.00 | 88 | $6,562.42 | $13,062.42 |
| $200.00 | 50 | $3,473.40 | $9,973.40 |
| $300.00 | 28 | $1,859.45 | $8,359.45 |
| $500.00 | 15 | $992.80 | $7,492.80 |
Two of those payments are refused because they sit below the $119.17 of interest charged in month one, so no principal would ever come off the balance. The calculator turns them away and names the smallest payment that would work. Among the accepted figures, moving from $150 to $200 a month cuts 38 months and $3,089.02 of interest. Moving to $300 cuts 60 months and $4,702.97. The savings are large because each extra dollar retires principal early, and every month of principal you avoid is a month of interest you never pay.
The rate moves the answer just as much. Holding the payment at $150 on the same $6,500 balance:
| Annual rate | First month interest | Months to pay off | Total interest |
|---|---|---|---|
| 9.99% | $54.11 | 54 | $1,595.82 |
| 15% | $81.25 | 63 | $2,920.41 |
| 22% | $119.17 | 88 | $6,562.42 |
| 29% | $157.08 | Refused | Refused |
At 29% the $150 payment falls below the $157.08 first month interest charge, so the tool refuses it for the same reason. A balance transfer that moves you from 29% to 15% changes the 63 month, $2,920.41 plan into an 88 month, $6,562.42 plan, and the transfer fee is not part of either figure. Run both numbers and decide with the fee in view.
Paying Off a Set Amount by a Date
The calculator has no target-date field, and pretending otherwise would be the fastest way to a wrong number. It takes a payment and returns the payoff period. To answer "how do I pay off $30,000 in a year", the payment is derived from the balance, the rate, and the number of months, then entered so the tool confirms the result. The derivation is the standard one, where r is the monthly rate and n is the number of payments:
payment = balance x r / (1 - (1 + r)^-n)
For $30,000 at 22% over twelve months, r is 0.22 divided by 12 and n is 12, which gives $2,807.84. Entering that payment returns 12 months, $3,693.97 of interest, and $33,693.97 of total paid. Stretching the target changes the interest sharply, because a longer schedule keeps a larger balance alive for longer. The same derivation is what a calculator to pay off debt by a fixed date has to run internally, which is why the figures below are worth checking against your own statement rather than trusting a round number.
| Target for $30,000 at 22% | Payment to enter | Months | Total interest | Interest as a share of the balance |
|---|---|---|---|---|
| 1 year | $2,807.84 | 12 | $3,693.97 | 12% |
| 18 months | $1,971.86 | 18 | $5,493.47 | 18% |
| 2 years | $1,556.35 | 24 | $7,352.26 | 25% |
| 3 years | $1,145.72 | 36 | $11,245.58 | 37% |
| 5 years | $828.57 | 60 | $19,713.88 | 66% |
At 29% the one year target needs $2,909.88 a month and costs $4,918.50 in interest, which is $1,224.53 more than at 22% for the same twelve payments. A target date is a rate decision as much as a payment decision.
The rate also decides whether the date is reachable at all. A $2,500 payment clears $30,000 in twelve months only below about 0.10% APR. $2,600 a month works up to about 7.30%, and $2,750 up to about 18%. Since the average US card rate sits above 20%, a $30,000 balance needs roughly $2,810 a month to clear inside a year.
How fast $20,000 clears depends on which payment you can hold. At 22%:
| Payment on $20,000 at 22% | Months to pay off | Total interest | Total paid |
|---|---|---|---|
| $300.00 | Refused | Refused | Refused |
| $500.00 | 73 | $16,378.20 | $36,378.20 |
| $1,000.00 | 26 | $5,142.89 | $25,142.89 |
| $1,500.00 | 16 | $3,146.71 | $23,146.71 |
| $2,000.00 | 12 | $2,297.75 | $22,297.75 |
A $300 payment on $20,000 is refused because month one costs $366.67 in interest. The gap between $500 and $1,000 is where most of the decision sits: $500 a month runs six years and costs $16,378.20, while $1,000 a month runs 26 months and costs $5,142.89.
The same ladder on $15,000 at 22% shows the trap at the other end. A $300 payment is accepted, because $275.00 of first month interest leaves $25.00 of principal, and it takes 137 months with $26,034.34 of interest. That is about 1.7 times the balance itself. Raising the payment to $500 clears it in 44 months for $6,976.74, and $1,000 clears it in 18 months for $2,703.11.
Turning Months Into a Payoff Date
The result panel reports months, and a payoff date is that many months from your first payment. A balance of $6,500 at 22% with $150 a month returns 88 months. If the first payment falls in October 2026, the debt-free month is February 2034. Add the count to the month of your first payment, and count the first payment as month one.
| Balance, rate, and payment | Months to pay off | Debt-free month from an October 2026 first payment |
|---|---|---|
| $6,500 at 22% with $150 | 88 | February 2034 |
| $20,000 at 22% with $1,000 | 26 | December 2028 |
| $30,000 at 22% with $2,000 | 18 | April 2028 |
| $10,000 at 22% with $200 | 137 | March 2038 |
That date assumes every payment arrives on time and the rate holds. A single missed month or a jump to a penalty APR moves it out, and the calculator will show the new figure as soon as you re-run it with the payment and rate you actually face. Nothing here is specific to credit cards, so a pay off debt calculator for a car loan or a personal loan produces the same kind of date from the same three numbers.
Why a Minimum Payment Can Take Decades
US card issuers are required to tell you when paying only the minimum will not clear the balance. The Minimum Payment Warning in 12 CFR 1026.7(b)(12) requires a statement to show a repayment estimate, the total cost in dollars, and the time it would take to repay by paying only the minimum each month. The regulation calls out the case where a payment does not even cover the interest, which is the situation that produces a balance that never clears.
That warning is worth reading closely, because the statement's minimum is not a fixed number. Most issuers set it as a small share of the balance, often around 2% or $20, whichever is larger, so it falls as the balance falls. The calculator on this page holds your payment constant instead. If you are using it as a paydown debt calculator, that fixed payment is the point: it models a commitment you choose rather than a replica of what an issuer will charge you.
The size of the gap is easy to miss. A $10,000 balance at 20.94%, the average across all commercial bank card accounts, with a $200 monthly payment takes 120 months and $13,811.77 of interest. At 22%, a $185 payment clears the $183.33 interest charge, so it is accepted, and it stretches the payoff to 260 months with $37,956.16 of interest. That is nearly four times the original balance in interest alone. Fifteen dollars a month is the difference between ten years and more than twenty one.
US Card Rates and Rules That Change Your Plan
Two consumer rules that were meant to take effect in 2025 did not, and both bear on what you owe outside the interest calculation.
There is no federal $8 late fee safe harbor in force. The Consumer Financial Protection Bureau issued a final rule in March 2024 that would have replaced the $30 and $41 safe harbors under the Credit Card Accountability and Disclosure Act of 2009 with an $8 amount for issuers holding at least one million accounts. On April 15, 2025, the US District Court for the Northern District of Texas vacated that rule in Chamber of Commerce of the United States v. Consumer Financial Protection Bureau. There was never a federal cap on what a card issuer may charge for a late payment, and the vacated rule would not have created one. The penalty a card issuer may charge is set by its cardholder agreement, its state law, and its posted policy. One late payment can also raise a promotional rate to a penalty APR, which the calculator does not model.
Medical debt can still reach your credit report. A January 14, 2025 rule would have removed paid and unpaid medical debt from credit reports and barred lenders from considering it. On July 11, 2025, the US District Court for the Eastern District of Texas set that rule aside in full in Cornerstone Credit Union League v. Consumer Financial Protection Bureau. The three nationwide credit reporting agencies changed their own practices in 2022 without a rule: they wait a year before reporting unpaid medical collections, and they stopped reporting paid medical collections and unpaid medical collections under $500. If you are clearing a medical bill, the calendar still matters, because the one year delay applies to collections rather than to the original creditor.
What This Calculator Leaves Out
The arithmetic is exact within its assumptions, and the assumptions are narrow. Knowing where they stop is part of reading the result.
- The payment never changes. Your issuer's minimum declines as the balance declines, and your own payment may rise when your income does.
- One balance at a time. There is no snowball, no avalanche, and no ordering of several debts.
- No extra payments. To model a lump sum, enter a larger monthly payment that is sustainable, or run the balance again after a windfall.
- No fees, no penalty APR, no new charges. Late fees, balance transfer fees, and a rate jump after a missed payment all sit outside the math.
- No daily interest. Some cards accrue daily and post a monthly sum, and some post a monthly average daily balance. The tool uses a monthly rate on the balance carried, which is the common method and not the only one.
- No taxes or insurance. Nothing beyond the interest and principal you enter.
- A hundred year ceiling. The walk stops at 1,200 months, which no practical plan reaches.
- Not a statement match. A lender's daily interest convention, promotional balance handling, and rounding can produce a small difference against the real account.
The three numbers go to the SajiloX server so the calculation can run, and your currency choice is kept in your own browser. No account is required.
Making the Payment Stick
Pick a payment that survives a bad month, then automate it. A payment you have to remember is a payment you will eventually miss, and a missed month puts a penalty rate between you and the payoff date you just calculated. Set the payment for the day after your income lands, and treat the difference between your minimum and your real payment as money that is already spoken for.
Before you commit to a rate, compare what a balance transfer would actually save. Run the current rate, run the rate you would get after a transfer, and add the transfer fee to the interest figure. A lower rate that stretches the term is only a bargain when the fee is small relative to the interest you avoid.
Once the balance reaches zero, give the payment a job rather than letting it disappear. Running the same amount into a recurring deposit shows what the commitment becomes when it is working for you instead of against you.
This page is arithmetic, not advice. Card issuers set their own minimums, penalties, and hardship options, and a nonprofit credit counselor can review your specific accounts at no cost. Check the numbers on your own statement before you act on anything here.
Last verified: September 2026. Every figure on this page, including the $15,000, $20,000, and $30,000 target-date payments and the rate ceilings, was solved against the reducing balance walk in the calculator source and re-run in the tool. The average card APR figures were read from the Federal Reserve G.19 release dated September 8, 2026, and the late fee and medical debt rule changes were confirmed against the Consumer Financial Protection Bureau and the court orders that vacated them.