This free balance transfer calculator tells you whether moving your credit card debt to a 0% intro offer actually saves you money once the transfer fee is added in. Enter your balance, current APR, and monthly payment, then the details of the offer. In seconds you will see the interest you save, whether you can clear the balance before the promotion ends, and the exact payment needed to pay zero interest. No signup required.
The fixed amount you can pay each month. Used for both options.
Enter your balance, monthly payment, and the transfer offer to see whether the 0% deal beats staying put — after the fee.
Move your balance in Auritrack and track the payoff month by month, so you clear it before the 0% window closes and never miss the deadline.
Try Auritrack FreeType in the balance you owe, your current card APR, and the fixed amount you can pay each month. This monthly payment is applied to both options so the comparison is fair.
Enter the balance transfer fee (usually 3% to 5%), the intro APR (typically 0%), how many months the intro period lasts, and the APR that kicks in once the promotion ends.
The calculator instantly shows whether transferring saves or costs you money after the fee. It compares the total interest of staying put against the fee plus interest of transferring.
See whether your monthly payment wipes out the balance before the 0% window closes. If not, the tool shows the exact monthly payment needed to clear it in time and pay zero interest.
Use the payoff timelines and the recommendation line to decide. Adjust the fee, intro length, or payment to test different offers before you apply for a card.
A balance transfer moves debt from a high-interest credit card to a new card offering a promotional 0% APR for a fixed number of months, commonly 12, 15, 18, or 21. During that intro window, none of your payment goes to interest, so every dollar you pay chips directly into the principal. The catch is a one-time transfer fee, usually 3% to 5% of the amount you move, added to your balance on day one. Transfer $6,000 with a 4% fee and you start owing $6,240. The strategy only makes sense when the interest you avoid during the 0% period comfortably beats that upfront fee. For someone carrying a balance at 20% to 25% APR, that is often an easy win, but the size of the fee and the length of the intro period decide everything. If you want to see how fast the same balance disappears at your current rate, run it through our credit card payoff calculator first to understand the baseline you are trying to beat.
The transfer fee is the price of admission, and comparing it to the interest you would otherwise pay is the whole decision. Imagine an $8,000 balance at 22% APR with a fixed $300 monthly payment. Staying on that card, you would pay roughly $3,083 in interest before clearing it. Transfer the same balance to a 0% card with a 3% fee and you pay $240 upfront. If you keep paying $300 a month, most of the balance melts away during the 0% window, and even the small amount left after the promotion costs only a couple hundred dollars in interest. The net result is often more than $2,500 saved. The math flips when the fee is large relative to the balance, the balance is small, or your current APR is already low. A 5% fee on a balance you could clear in a few months at 12% APR rarely pays off. This calculator handles the comparison precisely, so you never have to estimate.
The single biggest mistake people make with balance transfers is treating the 0% period as breathing room rather than a deadline. The goal is to pay the entire balance, including the fee, before the promotional rate expires. To do that, divide your starting balance by the number of intro months to find the payment you need to hit. For an $8,240 balance over 18 months, that is about $458 a month. Pay that and you walk away having paid the fee and essentially nothing else. Pay less and you carry a remainder into the post-intro APR. This calculator shows the exact payment required to clear the balance in time, and flags when your current payment already gets you there. If you are juggling more than one debt, a structured debt payoff planner can help you decide how much to throw at the transferred balance versus your other obligations each month.
What happens after the promotion is where good intentions unravel. Once the intro window closes, any leftover balance starts accruing interest at the card's regular APR, which is frequently 18% to 26% and sometimes higher than the card you left behind. On most modern cards the 0% rate is not retroactive, so you are not billed for interest you avoided earlier. Still, a large remaining balance at a punishing rate can quickly erase the savings the transfer was supposed to deliver. Read the offer carefully for two things: the exact post-intro APR and the transfer fee, since a headline "0% for 21 months" can hide a 5% fee or a 27% rate afterward. A slightly shorter intro period with a lower fee often beats a longer one with a steep fee. Enter the real post-intro APR into this calculator so the leftover interest is counted honestly rather than assumed away.
A balance transfer is a payoff tool, not a spending tool, and there are clear situations where it backfires. Skip it if you cannot commit to paying the balance down aggressively, because carrying a large remainder into the post-intro APR can leave you worse off after the fee. Skip it if your current APR is already low, since the interest saved may not cover the fee. Be cautious if you are tempted to keep spending on the old card once it is cleared, which is how people end up with two balances instead of one. And watch out if you have applied for several cards recently, as another hard inquiry and a lower average account age can weigh on your credit at the wrong moment. The healthiest use of a transfer is pairing it with a spending plan you can actually stick to. Building a simple monthly budget first makes sure the payment this calculator recommends fits comfortably alongside your other essentials, so the transfer becomes the last step in getting out of debt rather than a pause button.
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Pay It Off Faster
Auritrack tracks your card payoff month by month, keeps the intro deadline in view, and shows exactly how much to pay so you never slip into the post-intro APR. Works in any currency with AI-powered live exchange rates. Free to start.
Disclaimer: This tool is provided for informational and educational purposes only. It does not constitute financial, tax, investment, or legal advice. Results are estimates based on the inputs you provide and may not reflect actual financial outcomes. Always consult a qualified financial professional before making financial decisions.
