FinanceCalcs
Credit Card Balance Transfer Calculator
Find out if transferring your credit card balance to a 0% promo APR card saves you money. See interest saved, the true cost of the transfer fee, and what happens if you don't pay it off before the promo period ends.
Enter your current card details and the new offer — get a complete side-by-side cost comparison.
Balance Transfer Calculator
You Save: $0
- Current Card
- After Transfer
"A 0% balance transfer is only free money if you pay it off before the clock runs out."
-- Consumer Finance Principle
How balance transfers work
A balance transfer moves your existing credit card debt to a new card — typically one offering a promotional 0% APR for a set period (12–24 months). During the promo period, every dollar of your payment reduces principal rather than going toward interest. This can dramatically accelerate payoff and save hundreds or thousands in interest charges.
The transfer fee (typically 3–5% of the transferred balance) is the upfront cost. On a $6,500 balance with a 3% fee, you pay $195 immediately. The question is whether interest savings over the promo period exceed that fee — almost always yes if you have a high-APR card and a meaningful payment.
The critical risk: if you don't pay off the full balance before the promo period ends, the remaining balance is subject to the go-to APR — often 20–29%. Some cards also apply deferred interest (not shown here) which retroactively charges interest on the original balance from day one. Always read the offer terms carefully.
lightbulb Example Balance Transfer
You have a $6,500 balance at 22.99% APR and can pay $250/month. Without a transfer, payoff takes 32 months and costs $1,680 in interest.
You transfer to a card with 0% APR for 18 months and a 3% transfer fee ($195). During the 0% period, all $250/month reduces principal. After 18 months the balance is down to $2,000. Even at a 21.99% go-to rate, payoff takes only 9 more months with $175 in interest.
Total transfer cost: $195 fee + $175 interest = $370. Savings vs. keeping the current card: ~$1,310. The transfer saves money even though the go-to rate is similar to the original rate — because the 0% period paid down principal so fast.
Balance Transfer FAQs
Does a balance transfer hurt my credit score?
Applying for a new card creates a hard inquiry (typically -5 points). Opening the account lowers your average account age. However, the lower utilization on your old card (and new card if not maxed out) tends to help your score. Net effect is usually neutral to slightly negative short-term, improving over time if you pay down the balance.
Can I transfer balances between cards from the same issuer?
No — most issuers prohibit balance transfers between their own cards. You must transfer from one bank's card to another bank's card. Chase won't accept transfers from Chase; Citi won't accept from Citi, etc.
What happens if I miss a payment during the promo period?
Most issuers will immediately cancel the promotional rate and apply the penalty APR (often 29.99% or higher) to the full remaining balance. Some also apply this retroactively. Set up autopay for at least the minimum payment to protect the promotional rate.
Should I close the old card after transferring?
Generally no — closing the card reduces your total available credit and increases utilization on remaining cards, which can hurt your score. Keep the old card open (and ideally use it for a small recurring charge to keep it active), but stop carrying a balance on it.
Balance transfer terminology
Promotional APR
A temporary reduced interest rate offered as an incentive to open a new card or transfer a balance. Usually 0% for 12–24 months. Applies only to the transferred balance — new purchases may accrue interest immediately at the regular APR.
Go-To APR
The standard APR that applies after the promotional period ends, or to any balance not paid off by the end of the promo. This is the rate used in this calculator for any balance remaining after the promo period expires.
Balance Transfer Fee
A one-time fee charged when the balance is transferred, typically 3–5% of the amount transferred. Added to the balance on the new card. Some cards waive this fee — worth factoring into the comparison.
Deferred Interest
A predatory feature (common on store cards, rare on major bank cards) where no interest accrues during the promo period — but if any balance remains at the end, interest on the original amount is charged retroactively from day one. Very different from a true 0% APR. Read the fine print.
Credit Utilization
The percentage of your available revolving credit currently in use. Transferring a balance doesn't change your total debt, but spreads it across more credit — potentially improving your utilization ratio and credit score.
Disclaimer: All calculators on this site are provided for informational and educational purposes only. Results are estimates based on the inputs you provide and mathematical formulas — they do not account for taxes, fees, inflation, risk, or other real-world factors that may affect financial outcomes. Past performance does not guarantee future results. Nothing on this site constitutes financial, investment, legal, or tax advice. Always consult a qualified professional before making financial decisions.
About FinanceCalcs.net — FinanceCalcs.net is a free financial calculator directory built and maintained by Ted Grajeda. The site exists to give everyone access to fast, accurate financial math — no subscriptions, no paywalls, no signup required. Every calculator runs entirely in your browser using standard financial formulas.