Balance Transfer Break-Even: Fee, Promo APR and Payoff
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A balance transfer breaks even only when interest avoided on the old card exceeds the transfer fee, new account fees, and any interest before and after the promotion. A 0% headline is not a complete comparison.
All-in transfer comparison
Transferred opening balance = old balance + max(percentage fee, minimum fee). Modeled transfer cost beyond the original balance equals transfer fee + promotional-period interest + post-promotional interest + entered account fees. Compare that with current-card interest and account fees under the same planned payment floor.
Hold the payment constant
Changing both the card and the payment hides the source of savings. The CalculatorGeek transfer path uses the same planned payment floor for the old and new account, while still respecting each account’s required minimum. This isolates the terms more clearly.
Calculate the payment that clears the promo
Divide-and-hope is insufficient when fees, promo interest, and cents rounding apply. The calculator searches for the payment floor that closes the transferred balance within the entered whole promo months. It also reports the balance left at expiry under your planned payment.
New purchases can change grace-period economics
CFPB guidance warns that carrying a promotional transfer can affect whether new purchases receive a grace period. Separate purchase and transfer balances may have different APRs, and payment allocation rules matter. This calculator excludes new purchases entirely; use the transfer card only under terms you understand.
Verify the written offer
- Eligible transfer amount and credit limit.
- Transfer fee and any money minimum.
- Deadline to complete the transfer.
- Promo APR, exact duration, and post-promo APR.
- Annual and monthly account fees.
- Minimum formula and allocation rules.
- Purchases, cash advances, late payments, lost-offer triggers, and excluded issuers.
Worked same-payment example
A 5,000 old balance at 24% takes 26 modeled months with 250 per month and costs 1,449.37 interest. A 3% transfer fee creates a 5,150 opening balance. At 0% for 18 months then 24%, the same 250 leaves 650 at expiry, completes in 21 months, and costs 150 fee plus 24.69 interest. The transfer is lower by 1,274.68 in this defined scenario; 286.12 per month clears it during the promo.
Run the fee and expiry together
Use the transfer option in the Credit Card Payoff & Minimum Payment Calculator so the fee, minimum, account charges, promo expiry, and post-promo APR appear in one ledger.
Frequently asked questions
Is a 3% transfer fee high?
Its importance depends on how much interest the new terms avoid under the same payment. Convert it to money and compare all-in cost.
Should I close the old card after transferring?
That can affect available credit, account history, fees, and spending control. This calculator does not make account-closing or credit-score recommendations.
Does CalculatorGeek recommend a credit card?
No. These resources compare user-entered arithmetic and explain concepts; they do not rank products, predict approval, quote live rates, or recommend borrowing.
Can a calculator replace my statement or payoff quote?
No. Issuers may use daily balances, multiple APR buckets, allocation rules, transaction dates, and residual interest. Use the current statement and request a payoff amount when exact settlement matters.
Sources and review status
- CFPB — New purchases after a balance transfer
- CFPB — Deferred-interest promotions
- CFPB — How credit-card companies calculate interest
- Financial Consumer Agency of Canada — Paying off credit-card debt
- MoneyHelper — Simple guide to credit cards
- ASIC Moneysmart — Credit-card balance transfers
Sources and model boundaries were checked on 2026-10-07. CalculatorGeek Editorial Team reviewed and approved the full finance and insurance package on 2026-10-08. The cited organizations supplied source material; they did not review or endorse this CalculatorGeek package. Product terms, policy forms, laws, regulatory guidance and rates can change; current written documents and applicable authorities control.
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