How to Pay Off a Balance Transfer Before the Promo Ends

The formula

Monthly payment = (amount transferred + fee) ÷ promo months.

Transfer $5,000 with a 5% fee and you owe $5,250. On a 21-month promo that's $250 a month. Round up a little, to $260 say, to cover any timing gap from your first statement.

Monthly payment table

Payment needed to reach $0 by the end of the promo:

Figures are rounded up to the next dollar. If the number for your promo is too high, you need either a longer promo (see longest 0% APR cards) or a different plan.

Building the plan around your budget

Work backward from what you can afford. If $300 a month is your ceiling, multiply by the promo length: $300 × 21 months covers $6,300, enough for a $6,000 transfer with a 5% fee. Over 15 months, $300 covers only $4,500.

If the number doesn't fit, you have three options: transfer less and pay the rest down on the old card, choose a longer promo, or combine a transfer with a personal loan. Our guide to choosing a card matches promo lengths to payoff timelines.

What happens if you fall short

Pay $150 a month on a $5,250 balance for 18 months and you'll still owe $2,550 when the promo ends. With a true 0% offer, interest isn't charged retroactively, but that remainder starts accruing interest at the regular variable APR from then on. For a card at 28.49%, that's expensive debt again.

If your numbers don't work, compare a personal loan, which gives a fixed payment and payoff date.

Using the payment table as a check-in

Halfway through a 21-month promo on a $5,250 balance, you should owe about $2,625. If you owe noticeably more, raise your payment now rather than in the final months, when the gap is harder to close.

Seven habits that get you to zero

1. Automate the full target payment, not the minimum. A payment more than 60 days late can end the promo, and card agreements may be stricter.
2. Write down the promo end date. Most promos here run from account opening, not from when the transfer posted.
3. Don't spend on the transfer card, especially if purchases don't have 0% (Citi Double Cash, for example).
4. Keep the old card at zero. Freed-up credit is the most common way people end up with double the debt.
5. Add windfalls. Put tax refunds or bonuses toward the balance.
6. Check progress every quarter. Compare what you owe with what the table says you should owe.
7. Plan the last two months. If you're behind, pay the gap or arrange a backup before the rate changes.

If you have purchases on the same card

Federal rules send payments above the minimum to the highest-APR balance first. Purchases at the regular rate get paid before your 0% transfer, which is good for interest but slows the transfer payoff. Add the purchase amount to your monthly target, or better, use another card for spending, such as one from our best cash back cards list.

Watch out for deferred interest

Store-card promos marketed as "no interest if paid in full" are different. Interest builds from the purchase date and is charged in full if any promo balance is left. In the last two billing cycles before such a promo expires, issuers must apply extra payments to that balance first. If you're juggling one, pay it off first. Terms vary by card, so check your issuer's site. For more on how the pieces fit, see how balance transfers work and the fee guide.

Frequently Asked Questions