How Long to Pay Off $18,000 at 5% APR with $100/Month
Paying $100.00/month on a $18,000 balance at 5% APR takes 27 yrs 10 mo and costs $15,400.00 in interest.
Payoff summary
Months to pay off
334
27 yrs 10 mo
Total interest
$15,400
Total paid
$33,400
1st month interest
$75.00
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 4 yrs 9 mo with $2,520.00 in interest — $-12,880.00 more than your $100/month plan.
Payment Schedule (First 6 Months)
| Month | Payment | Principal | Interest | Balance |
|---|---|---|---|---|
| 1 | $100.00 | $25.00 | $75.00 | $17,975.00 |
| 2 | $100.00 | $25.10 | $74.90 | $17,949.90 |
| 3 | $100.00 | $25.21 | $74.79 | $17,924.69 |
| 4 | $100.00 | $25.31 | $74.69 | $17,899.37 |
| 5 | $100.00 | $25.42 | $74.58 | $17,873.95 |
| 6 | $100.00 | $25.53 | $74.47 | $17,848.43 |
Showing first 6 of 334 payments. Use the full calculator →
Compare Payment Amounts ($18,000 at 5% APR)
| Monthly Payment | Payoff Time | Total Interest | |
|---|---|---|---|
| $100.00/mo ◀ | 27 yrs 10 mo (334 mo) | $15,400.00 | current |
| $150.00/mo | 13 yrs 11 mo (167 mo) | $7,050.00 | saves $8,350 |
| $200.00/mo | 9 yrs 6 mo (114 mo) | $4,800.00 | saves $10,600 |
| $250.00/mo | 7 yrs 2 mo (86 mo) | $3,500.00 | saves $11,900 |
| $300.00/mo | 5 yrs 10 mo (70 mo) | $3,000.00 | saves $12,400 |
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FAQ
- How long to pay off $18,000 at 5% APR paying $100/month?
- At $100.00/month on a $18,000 balance at 5% APR, payoff takes 27 years and 10 months (334 payments). Total interest paid: $15,400.00.
- How much interest will I pay on $18,000 at 5%?
- With a $100/month payment you'll pay $15,400.00 in interest over 334 months. Total out-of-pocket: $33,400.00.
- What happens if I pay the minimum on $18,000 at 5%?
- At the minimum payment (~$360.00/month), payoff takes 4 years and 9 months with $2,520.00 in interest — $-12,880.00 more than paying $100/month.
- How do I pay off $18,000 faster?
- Every extra dollar reduces both the balance and future interest. Adding $25 more per month (total $125) would cut roughly 67 months off your payoff time.