Credit Card Balance Transfer Break-Even Calculator

US credit card debt planning

Credit Card Balance Transfer Break-Even Calculator

See whether a promotional balance transfer could save money after fees. Compare total interest, payoff time, the balance left when the promotion ends, and the payment needed to clear it on schedule.

1. Your existing credit card

Assume the same fixed monthly payment on both options, no new purchases, and no missed payments.

Balance to transfer ($) Current card balance to be paid off or transferred.

Current card APR (%) Assumed constant APR if you keep this balance.

Monthly payment budget ($) Payment made at the end of each month, not the issuer’s calculated minimum.

2. New balance transfer offer

Read your card offer carefully. A 0% promotional APR can still carry a transfer fee, and the APR may increase after the promotional period ends.

Promotional transfer APR (%) Enter 0 for a 0% introductory transfer APR.

Promo period (months) Number of modeled monthly payments at promo APR.

APR after promotion (%) Applies to unpaid transferred debt from month after promotion ends.

Transfer fee (%) One-time fee on the balance moved.

Minimum transfer fee ($) The larger of this amount or percentage fee is used.

New card annual fee ($) Modeled as paid separately at opening, then each 12-month renewal while debt remains.

New card credit limit ($, optional) When entered, checks whether the transferred balance plus financed fee fits.

Fee treatment: The transfer fee is assumed added to the new card balance and charged the same introductory transfer APR, then the post-promo APR. Annual fees are assumed paid in cash outside your monthly debt-payment budget. Actual issuers can treat fees differently; verify your agreement.

Your balance transfer comparison

Estimated lifetime savings — After transfer fee, interest and annual fees

Transfer balance including fee — One-time fee included

Transfer balance at promo end

Payment to clear during promo

Option A: Keep your card

Starting card balance—

Interest until payoff—

Full repayment cost—

Time until paid off—

Balance at transfer promo end

Option B: Transfer the balance

One-time transfer fee—

Interest until payoff—

Annual card fees incurred—

Full repayment plus card fees—

Time until paid off—

When does the transfer fee pay for itself?

Interest avoided over full payoff—

Transfer fee + card annual fees—

First estimated fee-recovery month—

Remaining debt balance by month

Compare estimated principal and accrued unpaid interest as you make the same monthly payment on either card. The vertical marker shows when the introductory APR expires.

Keep current card Transfer Promo expiration

What if you pay more or less each month?

Payoff savings depend heavily on your monthly payments. These scenarios keep the APRs, introductory period and transfer fees unchanged.

Monthly payment sensitivity and total transfer savings
Monthly payment	Keep card payoff	Transfer payoff	Net savings after fees

Payment and interest schedule

Key months are shown below, including the last promotional payment and payoff months. Export the full month-by-month comparison.

Estimated remaining balances and interest charges
Month	APR on transfer	Current card interest	Current card balance	Transfer interest	Transfer balance

How this balance transfer break-even calculator works

Transfer fee = the greater of (transferred balance × transfer-fee percentage) or the entered minimum fee. The transfer starts with the original debt plus this fee. For each month, the calculator estimates interest = opening balance × APR ÷ 12, then subtracts your payment. The promotional APR applies for the number of months entered, and the post-promotion APR applies afterward.

Total cost of keeping the card = starting balance + interest incurred. Total cost of transferring = starting balance + transfer fee + interest incurred on the new card + annual card fees paid separately. The difference is estimated savings, provided both options are paid off within the 50-year modeling cap.

Payoff before the intro rate ends: the calculator determines the fixed month-end payment needed to eliminate the transfer balance within the chosen promotional months, using the promotional APR. Its fee-recovery month is the first month cumulative interest avoided equals or exceeds the transfer fee plus card fees incurred; this milestone is not the same as lifetime savings.

What is not modeled: Actual issuers may calculate interest daily on average daily balances, apply fees at other APRs, round each statement cycle differently, change variable APRs or minimum payments, or end promotional offers for missed payments. The model excludes new spending, late payments, deferred-interest promotions, cash advances and balance transfers that cannot be completed at the assumed terms. The existing card is assumed to have no additional annual fees.

Frequently asked questions

Is a 0% balance transfer completely free?

Not necessarily. Many introductory offers charge a balance transfer fee, often a percentage of the amount moved with a minimum dollar fee. The CFPB confirms a transfer fee may apply even when the intro APR is 0%.

What happens if I still owe money after the promo ends?

For a typical temporary 0% APR balance transfer, the remaining balance starts accruing interest at the nonpromotional APR after the promotional period. This calculator does not apply retroactive deferred interest. Review the card’s actual expiration date.

Can my balance transfer stop saving money later?

Yes. An expensive post-promotion APR or annual fees can outweigh earlier interest savings if you leave a balance unpaid for too long. Compare the full-payoff result, not only the first few months.

How much should I pay to finish before the promotional APR ends?

The calculator shows a month-end payment that amortizes the transferred amount, including the assumed financed fee, within the promotional months. An issuer’s minimum payment could be smaller and may not be enough.

Should I keep making new purchases on the transfer card?

Be cautious. Carrying a promotional transfer balance can eliminate the grace period on new purchases, meaning they may accrue interest even when the transfer has 0% APR. This calculator assumes no new purchases.

Will the transferred balance fit within my credit limit?

It must be eligible and within the issuer’s available-transfer limit. Enter the offered credit limit to check the principal plus the assumed financed transfer fee. Some issuers restrict transfers from affiliated cards or reserve part of the credit limit for fees.

How is this different from the Debt Snowball Calculator?

This tool compares keeping one revolving card balance versus paying it down on a promotional transfer card. A debt snowball calculator prioritizes repayment across multiple debts and does not model a specific promotional transfer offer.

Official sources: CFPB: balance transfer fees; CFPB: credit card interest; CFPB: purchases during balance transfer promos. Disclaimer: Educational estimates only, not an issuer quote, credit approval, legal or individualized financial advice. Check the written cardholder agreement and required minimum payments before acting.