Yes, a 5% balance transfer fee is worth it here. You'd pay $175 upfront but save $874 overall, because transferring cuts your total cost to $177 versus $1,051 if you stay put.
The math
Inputs
| Balance | $3,500 |
|---|---|
| Current APR | 28% |
| Monthly payment | $200 |
| Transfer fee | 5% |
| Promo APR | 0% for 18 months |
| APR after the promo | 27% |
The formula in words
Staying put: each month interest = balance × 28% ÷ 12, then the payment. Transferring: the 5% fee is added to the balance on day one, the rate is 0% for 18 months, then 27% ÷ 12 a month on whatever is left. Cost of each option = interest + fees; the saving is the difference.
Step by step
| Option | Upfront fee | Interest | Total cost | Time to pay off |
|---|---|---|---|---|
| Keep the balance at 28% | $0 | $1,051 | $1,051 | 23 months |
| Transfer (5% fee) | $175 | $2 | $177 | 19 months |
| Year | Paid | Interest | Balance at end |
|---|---|---|---|
| Year 1 | $2,400 | $783 | $1,883 |
| Year 2 (11 months) | $2,151 | $268 | $0 |
| Year | Paid | Interest | Balance at end |
|---|---|---|---|
| Year 1 | $2,400 | $0 | $1,275 |
| Year 2 (7 months) | $1,277 | $2 | $0 |
Result
- Transfer fee: $175
- Staying put: time to pay off: 23 months (1 year and 11 months)
- Staying put: total interest: $1,051
- Transferring: time to pay off: 19 months (1 year and 7 months)
- Transferring: interest: $2
- Transferring: total cost (fee + interest): $177
- Net saving from transferring: $874
- Balance left when the promo ends: $75
- Payment needed to clear the transferred balance before the promo ends: $204.17
Assumptions
- The same $200 payment under both options, no new purchases, and approval for the full balance.
- An APR of 27% on anything left after the promo; your card's rate may differ.
- Interest is figured monthly as APR ÷ 12. Card issuers usually charge interest on the average daily balance, which can add slightly more than shown.
- These are estimates that show how the math works, not financial, tax or legal advice. Lenders, card issuers and the IRS can calculate slightly differently.
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What the $874 saving actually means for you
Paying a $175 fee to move $3,500 to a 0% card feels backwards when you're stressed about debt. But the math shows the fee is tiny compared with the interest you'd otherwise pay. Staying put costs $1,051 in interest and takes 23 months. Transferring costs $177 total — the $175 fee plus $2 in interest — and takes 19 months. That's a net saving of $874.
Think of the fee as buying you a lower rate for a set window. You're not throwing $175 away; you're using it to stop the 28% APR from eating your payments. The result is that more of each $200 goes to the balance instead of interest, so you finish sooner and pay far less.
One number to keep in mind: if you keep paying $200 a month, you'll have $75 left when the 18-month promo ends. That leftover then gets charged at 27% APR. It's a small tail, but it's the reason the transferring scenario still shows $2 in interest instead of zero.
What drives the result — and what could change it
The saving comes from three things: the size of the balance, the high current APR, and the length of the 0% offer. At 28% APR, $3,500 generates a lot of interest each month. The 5% fee is a one-time cost of $175. Because the promo lasts 18 months and your $200 payment would take 23 months to clear the debt at 28%, the transfer removes most of the interest you'd pay.
If any of those inputs change, the answer can change. A smaller balance would make the $175 fee a bigger share of the debt. A shorter promo would leave more balance exposed to the 27% APR after the promo. A larger monthly payment would reduce the benefit of transferring, because you'd pay off the original debt faster and owe less interest. The numbers here assume you make the same $200 payment either way and don't add new purchases.
To clear the transferred balance before the promo ends, you'd need to pay $204.17 a month. That's only slightly more than $200, and it would avoid the $2 in interest and the $75 leftover. If your budget can stretch by that small amount, it's a clean way to finish the transfer with nothing left at the higher rate.
Practical next steps before you transfer
First, confirm you're approved for the full $3,500. A partial approval changes the math, because you'd still have some balance at 28% APR. Ask the new card issuer what the credit limit will be and whether the 0% offer applies to balance transfers specifically.
Second, check the promo terms. The 18-month window starts at a specific point, and the 5% fee is added to your balance on day one. Make sure you know when the promo ends so you can plan the final payments. If you can pay $204.17 instead of $200, you can clear the balance before the promo ends and avoid the 27% APR entirely.
Third, keep the old card open and unused if you can. The calculation assumes no new purchases. Adding new charges at 28% APR would work against the saving. Also, set a reminder for a couple of months before the promo ends so you can check the remaining balance and adjust your payment if needed.
Finally, remember these are estimates. Card issuers usually calculate interest on the average daily balance, which can add slightly more than the monthly APR ÷ 12 method used here. Your card's rate after the promo may differ from 27%. Confirm the exact terms with your card issuer before you commit.
Frequently asked questions
What if I can only pay $200 a month and the promo ends with $75 left?
You'll owe interest on that $75 at the post-promo APR, which the estimate puts at 27%. In the transferring scenario, that leftover adds only $2 in interest. You could also pay $204.17 a month to clear it before the promo ends and avoid that interest entirely.
Does the 5% fee get charged upfront or added to the balance?
In this calculation, the 5% fee is added to the balance on day one. That makes the starting transferred balance higher, but it stays at 0% during the promo. The fee is $175 on the original $3,500.
Why does staying put take 23 months but transferring takes 19 months?
At 28% APR, a large share of each $200 payment goes to interest, so the balance shrinks slowly. With 0% APR, almost the entire $200 goes to principal. That's why the transferred balance is paid off sooner even though the fee is added at the start.
What APR applies after the 18-month promo ends?
The estimate uses 27% APR on any remaining balance. Your card's actual rate may be different. Check your card agreement or ask the issuer so you know what to expect if a balance remains.
Is the $874 saving guaranteed?
No. It's an estimate based on the assumptions given: same $200 payment, no new purchases, full approval, and the stated APRs. Real card issuers may calculate interest on the average daily balance, which can change the result slightly. Treat it as a guide, not a promise.