Balance transfer vs personal loan: which costs less?

The short version: a balance transfer wins when the arithmetic says the whole balance can be cleared inside the promotional window, because the only cost is the transfer fee. A personal loan wins when it cannot, because a fixed instalment rate applied for the whole term beats a 0% window followed by a card’s go-to APR on whatever is left. The calculator above runs both paths on the same numbers so the comparison is not a guess.

The two cost structures are shaped differently

A balance transfer charges once and then charges nothing for a while. The fee, commonly quoted between 3% and 5%, is posted as a transaction and added to what is owed on day one. The CFPB found that transfers among the 25 largest issuers carried an average fee of 4.3% of the transferred amount in the second half of 2024, with an average minimum fee of $5.51. After that, a 0% intro period runs for a fixed number of billing cycles, and anything still outstanding when it ends starts accruing at the go-to APR.

A personal loan charges continuously and predictably. There is one fixed APR for the life of the loan, one fixed monthly payment, and a known final payment date. Some lenders take an origination fee first, either deducted from the proceeds or added to the principal. Published origination fees run from zero to about 12% of the loan amount, and NerdWallet’s September 2026 pre-qualification data puts average APRs at 14.87% for excellent credit, 19.59% for good, 23.84% for fair and 27.28% for bad. The Federal Reserve’s G.19 series for 24-month personal loans at commercial banks read 11.86% in Q2 2026, which is lower because bank loans skew toward stronger applicants.

Discipline: a fixed term versus an open line

This is the difference most cost comparisons skip. A loan has a schedule. Payments are set, the balance only goes down, and the account closes itself when the last payment lands. A balance transfer card is a revolving credit line that stays open and stays spendable. Nothing in the product forces the balance down, and the minimum payment is designed to be small.

There is a second trap specific to cards. Under 12 CFR 1026.53, payments above the minimum must go to the highest-APR balance first, but the minimum payment itself is allocated at the issuer’s discretion, and the major issuer agreements apply it to the lowest-APR balance first. On a card carrying a 0% transferred balance plus anything at a normal rate, that means the minimum chips away at the 0% balance while the expensive balance sits there. New purchases also lose the grace period while a transferred balance is outstanding unless the purchase APR is also 0%.

Credit effects run in opposite directions

Card debt is revolving and feeds directly into utilisation. Loan debt is instalment and is largely kept out of that calculation. So paying cards off with loan proceeds usually drops revolving utilisation hard, which tends to help. A transfer moves revolving debt to a different revolving line: overall utilisation is unchanged if the old cards stay open, but utilisation on the new card can land near its limit, particularly once the fee is added. Both routes involve a hard inquiry and a new account, and both shorten average account age. More on this at how a transfer affects your credit.

Worked example: $5,000 at 24%

Take $5,000 sitting on a card at 24% APR, and a borrower who can put $300 a month toward it.

The transfer route: a 3% fee adds $150, so the opening balance is $5,150 at 0% for 18 months. At $300 a month, seventeen payments of $300 and a final payment of $50 clear it in 18 months, inside the window. Interest paid: $0. Total cost of borrowing: the $150 fee.

The loan route: to have $5,000 in hand after a 5% origination fee is deducted from the proceeds, the borrower has to take out about $5,263. At 19.59% over 36 months that is a payment of about $195 a month, $7,002 paid in total, of which about $1,739 is interest and $263 is the origination fee.

The transfer is cheaper by roughly $1,850. That gap is not really about clever financing; it exists because the balance was cleared inside the 0% window. The loan’s lower monthly payment is the only thing it wins on here, and it wins that by stretching the debt to three years.

When the loan actually wins

Change two assumptions and the ranking flips. Suppose the applicant can only find $173 a month, and only qualifies for a 6-month promo at a 5% fee, with a 24% go-to APR afterward.

The transfer route: the fee adds $250, opening at $5,250. Six months of $173 pays down $1,038, leaving about $4,213 when the promo ends. At 24%, that takes roughly another 34 months and costs about $1,620 in interest. Total cost of borrowing: about $1,870, spread over roughly 40 months.

The loan route: a borrower with excellent-tier credit at 14.87% over 36 months, with no origination fee, pays about $173 a month for 36 months. Total interest: about $1,228. That is roughly $640 cheaper, four months faster, and the payment never changes.

So the loan wins in three recognisable situations. First, when the balance cannot be cleared inside the intro period at any payment the household can sustain. Second, when the applicant qualifies only for a short promo or a high fee, which is common with fair credit and is worked through on balance transfers with bad credit. Third, when the loan APR available is meaningfully below the card’s go-to APR, so the leftover balance would be the expensive part.

What tips the decision either way

Run the same monthly payment through both. If the transfer clears the balance before the promo ends, it almost always costs less, and the break-even fee percentage on the calculator above shows how much fee the scenario can absorb before that stops being true. If the transfer leaves a residual balance, the comparison becomes go-to APR against loan APR, and the fee becomes a sunk cost paid for a benefit that only partly arrived. A useful middle path exists too: a transfer for the portion that can genuinely be cleared in the window, with the rest left where the arithmetic is honest about it. See also what happens after the 0% ends and the broader comparison with debt consolidation.

All rates above are published averages used as illustrations, not offers, and actual terms depend on the applicant and the lender.