Balance Transfers: 0%—Used the Right Way

Lower interest, not your credit score.

Here’s a simple plan that finishes before the promo clock runs out—plus the gotchas to avoid.


A road sign with arrows pointing in opposite directions for good credit and bad credit under a clear blue sky.

Is a balance transfer worth it?

  1. Compute the real cost.
    • Transfer fee (often 3–5%) + your payoff plan. Many 0% offers still charge a fee; that’s allowed even when the promo APR is 0%.
  2. Compare vs. staying put.
    • If the fee is smaller than the interest you’d otherwise pay during your payoff window, the transfer can make sense. (Example below.)

Fast math (example):
Move $4,000 at 18% APR to a 0% card for 15 months with a 4% fee.
Total to eliminate = $4,000 + $160 fee = $4,160 → Pay $278/mo and you’re done by month 15.


The “no surprises” timeline

  • Day 0–1: Apply for a 0% balance transfer card you can pay off within the promo window.
  • Day 1–3: Request the transfer from the new issuer’s portal.
  • Day 5–14: Track status. Transfers typically land in about a week, but some take two to three weeks—keep paying the old card until you see $0 there.
  • When it posts: set autopay on the new card (at least the minimum + your planned extra).

Gotchas that cost people money

  • Purchases on the new card. Carrying a transferred balance usually means no grace period on new purchases; those can accrue interest from the purchase date. Solution: treat the BT card as payoff-only until you’re done.
  • Late payment = promo at risk. Intro rates must last at least 6 months, unless you’re 60+ days late—then issuers can yank it. Set autopay and calendar reminders.
  • “Why didn’t my extra payment hit the 0% part?” By law, anything you pay above the minimum must go to the highest APR balance first. Helpful if you accidentally made a purchase at a higher APR—but don’t rely on it; avoid new charges.

A payoff plan that actually finishes on time

1) Pick your deadline: the last day of the promo (e.g., 15 months).
2) Add the fee to your balance. (If 4% on $4,000, add $160.)
3) Divide by months: $4,160 ÷ 15 = $278/mo.
4) Automate it: autopay the minimum + a fixed extra that totals your target payment.
5) Add a buffer month: aim to finish one month early in case a transfer posts late or a paycheck shifts.

Snowball option: If you get a tax refund or bonus, throw it at the balance mid-promo—every dollar lowers the amount that could face the go-to APR later.


Credit score: protect it while you save

  • Application = hard inquiry + new account, which can dip scores a bit at first. (That’s normal.) Paying down the balance steadily helps over time.
A handwritten note pinned to a corkboard reminds to pay off credit cards.

Quick example table (copy into your post if you like)

Starting BalancePromo LengthFeeTotal To KillMonthly Target
$3,00012 mo3%$3,090$258
$4,00015 mo4%$4,160$278
$7,50018 mo5%$7,875$438

(Total To Kill = Balance + Fee; Monthly Target = Total ÷ Months)


Final checklist before you apply

  • You can pay it off within the promo window using the math above.
  • You’ll avoid purchases on the BT card (no grace period).
  • You’ll set autopay and alerts (protect the promo).
  • You’ll keep paying the old card until the transfer posts. Bankrate

WalletAware shares education, not individualized financial advice. Always confirm current terms on the issuer’s site before applying.