Calchy.

How Long to Pay Off $8,000 at 15% APR with $500/Month

Paying $500.00/month on a $8,000 balance at 15% APR takes 1 yr 6 mo and costs $1,000.00 in interest.

Payoff summary
Months to pay off
18
1 yr 6 mo
Total interest
$1,000
Total paid
$9,000
1st month interest
$100.00

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 ~$160.00/month (minimum), payoff takes 6 yrs 7 mo with $4,640.00 in interest — $3,640.00 more than your $500/month plan.

Payment Schedule (First 6 Months)

MonthPaymentPrincipalInterestBalance
1$500.00$400.00$100.00$7,600.00
2$500.00$405.00$95.00$7,195.00
3$500.00$410.06$89.94$6,784.94
4$500.00$415.19$84.81$6,369.75
5$500.00$420.38$79.62$5,949.37
6$500.00$425.63$74.37$5,523.74

Showing first 6 of 18 payments. Use the full calculator →

Compare Payment Amounts ($8,000 at 15% APR)

Monthly PaymentPayoff TimeTotal Interest
$100.00/mo246 yrs 6 mo (2958 mo)$287,800.00costs $286,800 more
$150.00/mo7 yrs 5 mo (89 mo)$5,350.00costs $4,350 more
$200.00/mo4 yrs 8 mo (56 mo)$3,200.00costs $2,200 more
$250.00/mo3 yrs 6 mo (42 mo)$2,500.00costs $1,500 more
$300.00/mo2 yrs 9 mo (33 mo)$1,900.00costs $900 more
$400.00/mo2 yrs (24 mo)$1,600.00costs $600 more
$500.00/mo ◀1 yr 6 mo (18 mo)$1,000.00current
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FAQ

How long to pay off $8,000 at 15% APR paying $500/month?
At $500.00/month on a $8,000 balance at 15% APR, payoff takes 1 year and 6 months (18 payments). Total interest paid: $1,000.00.
How much interest will I pay on $8,000 at 15%?
With a $500/month payment you'll pay $1,000.00 in interest over 18 months. Total out-of-pocket: $9,000.00.
What happens if I pay the minimum on $8,000 at 15%?
At the minimum payment (~$160.00/month), payoff takes 6 years and 7 months with $4,640.00 in interest — $3,640.00 more than paying $500/month.
How do I pay off $8,000 faster?
Every extra dollar reduces both the balance and future interest. Adding $125 more per month (total $625) would cut roughly 4 months off your payoff time.