How long does a balance transfer take? Issuer timelines

Most balance transfers complete in about five to 21 days. Citi puts the range at two to 21 days, Chase says most are processed within a week but can take up to 21 days, and American Express has been reported as taking up to six weeks in the slowest cases. Until the payoff posts, the old card is still charging interest at its normal rate, which is the only part of this that costs money.

Issuer timelines

The issuer figures come from the banks’ own published pages. The rest come from a dated trade publication and should be treated as typical rather than contractual. Processing time is not a term of the account and no issuer commits to it.

Two structural points explain most of the variation. Transfers sent electronically move quickly. Transfers that have to be sent as a paper check, which happens when the receiving account cannot take an electronic payment, take substantially longer. And several issuers do not begin processing transfers at all until a new account has been open for roughly two weeks, which is why the request made on day one can still be sitting untouched on day 12.

The old card keeps charging interest the whole time

Nothing about requesting a transfer pauses interest on the account being paid off. Interest accrues daily on the old balance at the old rate until the payoff posts.

On a $5,000 balance at 22.15%, the Federal Reserve’s Q2 2026 average rate on accounts assessed interest, the daily cost is about $3.03. A 14-day lag adds roughly $42. A six-week lag on the same balance adds close to $128. That is a real number and it belongs in the comparison, which is why the calculator includes a posting-lag input rather than assuming the transfer is instant.

There is a second, smaller cost. Because interest accrued right up to the posting date, the old card’s final statement will usually show trailing interest, sometimes called residual interest, on a balance that already reads zero. It has to be paid separately. An account left alone after the transfer because the balance looked settled can go past due over a few dollars.

And there is a third cost that is not interest at all. On nearly every US card the promotional clock runs from account opening, not from the day the transfer arrives. Time spent in processing is promotional time spent on an empty card. Fourteen days out of an 18-month promotion is not catastrophic, but six weeks out of a 12-month promotion is more than 11% of the window gone before the balance even lands. How a balance transfer works sets out the full sequence.

How to tell whether it went through

Check both accounts, not one.

On the new card, the transfer should appear as a posted transaction, with the fee posted alongside it as a separate charge. Pending is not posted. On the old card, a payment should be credited and the balance should be at or near zero. If the new card shows the amount but the old card still shows the debt, the money is in transit and the old balance is still accruing.

Until both sides agree, keep paying the old card’s minimum. Chase’s guidance is explicit on this point and every other issuer says some version of it. A missed payment during a two-week processing window costs a late fee and can affect the account’s standing, and under 12 CFR 1026.55 a payment more than 60 days late is the one circumstance that lets an issuer end a promotional rate early. Nothing shorter than that does.

If it takes longer than expected

Beyond roughly three weeks with no movement on either account, the sequence that resolves most cases is straightforward. Confirm the new card was activated, because some issuers will not process a transfer until it is. Confirm the old account number and payment address were entered correctly, since a digit wrong on the destination account is a common failure and the payment usually bounces back rather than going astray. Ask the new issuer whether the payment was sent electronically or as a check, because those are different waiting periods. And ask whether a new-account hold is in place.

If a transfer request is rejected outright rather than delayed, the usual reasons are that the destination is an account at the same bank, which essentially all US issuers refuse, that the amount exceeds the available credit limit once the fee is added, or that the request fell outside the issuer’s transfer window. How much can be transferred covers the limit arithmetic, which catches people out because the fee consumes credit line too.

Meanwhile, the old card should not be used. A card that has just been emptied has a full limit available on it, and the arithmetic of a transfer only works if the debt is being cleared rather than duplicated. That is the single most common way a balance transfer ends up worse than doing nothing, and it is covered in common mistakes.

What this means for the decision

Timing rarely changes whether a transfer is worth doing. A 14-day lag on a typical balance costs a few tens of dollars against a fee measured in hundreds and interest measured in the high hundreds. It matters at the margins: on a short promotion, on a large balance at a high rate, or where the applicant needs the transfer to land before a specific date. For everything else, the honest summary is that it takes two to three weeks, the old card keeps charging until it lands, and the only mistake that actually costs real money is stopping payments on the old account before the payoff has posted.