Exact math · October 2026
How Much Does a Balance Transfer Actually Save?
The exact calculation for a $5,000 balance at 24.99% APR with $300/month payments — and how to run the math for your specific numbers.
Net savings (example)
~$1,056
$5k at 24.99% APR, 18-mo 0% card
Longest 0% period
21 mo
5 cards tie for the longest
Fee window closes
60 days
3% intro fee on Chase & BankAmericard
Independent·Compensation never changes rankings·No sponsored rankings·Card data from our database, verified on each issuer’s site; dates shown
The direct answer — $5,000 example
Quick answer
On a $5,000 balance at 24.99% APR with $300/month payments, a balance transfer to a 0% card with an 18-month intro period and 3% fee saves approximately $1,056 net. Keeping the current card means paying ~$1,206 in interest over 21 months to fully clear it. Transferring means $150 upfront and zero interest — the balance fully clears in 18 months at $300/month.
Keep current card
~$1,206
Total interest to fully pay off (21 months at $300/mo)
Transfer at 3%
$150
One-time fee. $0 interest. Cleared in 18 months.
Net savings
~$1,056
$1,206 interest avoided minus $150 transfer fee
The interest estimate uses amortized calculation — your balance drops each month as you pay, so monthly interest decreases. The free calculator at /0-intro-apr-balance-transfer/ runs amortized math with your exact numbers.
Current best balance transfer cards (October 2026)
| Card | 0% BT Period | Transfer Fee | Annual Fee |
|---|---|---|---|
| Chase Slate | 21 months | 3% (60 days), then 5% | $0 |
| Citi Diamond Preferred | 21 months | 3% (4 mo), then 5% | $0 |
| BankAmericard | 21 months | 5% | $0 |
| U.S. Bank Shield Visa | 21 months | 5% | $0 |
| Wells Fargo Reflect | 21 months | 5% | $0 |
| Eagle Adapt | 20 months | 5% | $0 |
| USAA Cashback Rewards Plus American Express | 20 months | 5% | $0 |
| Citi Double Cash | 18 months | 3% | $0 |
3% fee windows close fast. Where a card offers a 3% intro transfer fee, it usually applies only to transfers made in the first 60 days to 4 months after opening. After that the fee jumps to 4–5%, so move the balance right after approval.
When a balance transfer is NOT worth it
- You can pay off in 2–3 months. At that pace the fee may exceed the interest you avoid. At $300/month on a $900 balance, you save very little — keep the card you have.
- Your payment won’t clear the balance in time. Any balance left when the 0% period ends immediately starts accruing interest at the post-intro APR — currently 17–28% for most cards based on live data.
- You plan to add new purchases. New spending while paying a transfer slows payoff and may not have 0% protection depending on the card.
- The balance is too big for any 0% window. If even the longest intro period won’t cover your payoff, compare debt consolidation personal loans: they usually come with a fixed rate and a set payoff date instead of a promo period that ends.
Free calculator · Amortized math
Calculate your exact savings before you apply
Enter your balance, current APR, transfer fee, intro period, and monthly payment. See your payoff date and which card profile fits your situation.
Ranked by math. Compensation never changes the order. Card data from our database, verified on each issuer’s site, as of October 2026.