Credit Card Interest at 18% APR
What a 18% APR actually costs on a $5,000 balance — the monthly interest, how long payoff takes at common payments, and how to lower your rate.
First-month interest on $5,000
$75/mo
$5,000 × 18% ÷ 12 months
Daily interest
$2/day
Most cards compound on the average daily balance.
Payoff at 18% APR (on a $5,000 balance)
| Monthly payment | Time to pay off | Total interest |
|---|---|---|
| $100/mo | 7.8 yrs | $4,311 |
| $150/mo | 3.9 yrs | $1,984 |
| $200/mo | 2.7 yrs | $1,314 |
| $300/mo | 1.7 yrs | $797 |
| $500/mo | 0.9 yrs | $458 |
| Minimum-ish (~$125/mo) | 5.2 yrs | $2,693 |
Model your own balance at 18% APR
Months to pay off
32
Pay double the minimum to typically cut payoff time by half.
How to lower a 18% APR
- Ask for a reduction. Call your issuer — roughly 30% of cardholders who request a lower rate get a 2–8 point cut, costing nothing to try.
- Use a 0% balance transfer. Moving the balance to a 0% promotional card (typically 12–21 months) pauses interest entirely, sending every dollar to principal — for a small transfer fee.
- Wait for rate cuts on variable cards. Most cards are variable-rate (prime + a margin), so when the Federal Reserve cuts rates, your APR falls automatically.
- Improve your credit profile. Lower utilization and a longer on-time history qualify you for lower-APR cards and stronger transfer offers over time.
See the full step-by-step in How to Get a Lower APR on Your Credit Card.
FAQ
How much interest does 18% APR cost per month on $5,000?
About $75 in the first month (a $5,000 balance × 18% ÷ 12). As you pay the balance down, the monthly interest shrinks because it is charged on the remaining balance.
How long does it take to pay off $5,000 at 18% APR?
It depends on your payment. Paying $200/month takes about 2.7 years and $1,314 in interest. Paying $500/month clears it in 0.9 years with only $458 in interest.
Is 18% a good APR for a credit card?
18% is around the typical US credit-card APR. It is normal but still expensive — carrying a balance at this rate adds up quickly, so paying in full each month avoids it entirely.
How can I lower a 18% APR?
Three common paths: call your issuer and ask for a rate reduction (about 30% of people who ask get 2–8 points off), move the balance to a 0% promotional balance-transfer card if your credit qualifies, or — on variable-rate cards — your APR falls automatically when the prime rate drops.
Interest at other APRs
👉 Know your balance instead? See payoff plans by balance or use the payoff calculator.