How Long to Pay Off $18,000 at 15% APR with $500/Month
Paying $500.00/month on a $18,000 balance at 15% APR takes 4 yrs 1 mo and costs $6,500.00 in interest.
Payoff summary
Months to pay off
49
4 yrs 1 mo
Total interest
$6,500
Total paid
$24,500
1st month interest
$225.00
Computed using the standard amortization formula (monthly compounding at APR/12). Assumes fixed payment with no new charges — real card statements may vary based on billing date, grace period, and fees.
Minimum payment warning: At ~$360.00/month (minimum), payoff takes 6 yrs 7 mo with $10,440.00 in interest — $3,940.00 more than your $500/month plan.
Payment Schedule (First 6 Months)
| Month | Payment | Principal | Interest | Balance |
|---|---|---|---|---|
| 1 | $500.00 | $275.00 | $225.00 | $17,725.00 |
| 2 | $500.00 | $278.44 | $221.56 | $17,446.56 |
| 3 | $500.00 | $281.92 | $218.08 | $17,164.64 |
| 4 | $500.00 | $285.44 | $214.56 | $16,879.20 |
| 5 | $500.00 | $289.01 | $210.99 | $16,590.19 |
| 6 | $500.00 | $292.62 | $207.38 | $16,297.57 |
Showing first 6 of 49 payments. Use the full calculator →
Compare Payment Amounts ($18,000 at 15% APR)
| Monthly Payment | Payoff Time | Total Interest | |
|---|---|---|---|
| $250.00/mo | 15 yrs 6 mo (186 mo) | $28,500.00 | costs $22,000 more |
| $300.00/mo | 9 yrs 4 mo (112 mo) | $15,600.00 | costs $9,100 more |
| $400.00/mo | 5 yrs 7 mo (67 mo) | $8,800.00 | costs $2,300 more |
| $500.00/mo ◀ | 4 yrs 1 mo (49 mo) | $6,500.00 | current |
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FAQ
- How long to pay off $18,000 at 15% APR paying $500/month?
- At $500.00/month on a $18,000 balance at 15% APR, payoff takes 4 years and 1 month (49 payments). Total interest paid: $6,500.00.
- How much interest will I pay on $18,000 at 15%?
- With a $500/month payment you'll pay $6,500.00 in interest over 49 months. Total out-of-pocket: $24,500.00.
- What happens if I pay the minimum on $18,000 at 15%?
- At the minimum payment (~$360.00/month), payoff takes 6 years and 7 months with $10,440.00 in interest — $3,940.00 more than paying $500/month.
- How do I pay off $18,000 faster?
- Every extra dollar reduces both the balance and future interest. Adding $125 more per month (total $625) would cut roughly 10 months off your payoff time.