Calchy.

How Long to Pay Off $8,000 at 15% APR with $300/Month

Paying $300.00/month on a $8,000 balance at 15% APR takes 2 yrs 9 mo and costs $1,900.00 in interest.

Payoff summary
Months to pay off
33
2 yrs 9 mo
Total interest
$1,900
Total paid
$9,900
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 — $2,740.00 more than your $300/month plan.

Payment Schedule (First 6 Months)

MonthPaymentPrincipalInterestBalance
1$300.00$200.00$100.00$7,800.00
2$300.00$202.50$97.50$7,597.50
3$300.00$205.03$94.97$7,392.47
4$300.00$207.59$92.41$7,184.87
5$300.00$210.19$89.81$6,974.69
6$300.00$212.82$87.18$6,761.87

Showing first 6 of 33 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 $285,900 more
$150.00/mo7 yrs 5 mo (89 mo)$5,350.00costs $3,450 more
$200.00/mo4 yrs 8 mo (56 mo)$3,200.00costs $1,300 more
$250.00/mo3 yrs 6 mo (42 mo)$2,500.00costs $600 more
$300.00/mo ◀2 yrs 9 mo (33 mo)$1,900.00current
$400.00/mo2 yrs (24 mo)$1,600.00saves $300
$500.00/mo1 yr 6 mo (18 mo)$1,000.00saves $900
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FAQ

How long to pay off $8,000 at 15% APR paying $300/month?
At $300.00/month on a $8,000 balance at 15% APR, payoff takes 2 years and 9 months (33 payments). Total interest paid: $1,900.00.
How much interest will I pay on $8,000 at 15%?
With a $300/month payment you'll pay $1,900.00 in interest over 33 months. Total out-of-pocket: $9,900.00.
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 — $2,740.00 more than paying $300/month.
How do I pay off $8,000 faster?
Every extra dollar reduces both the balance and future interest. Adding $75 more per month (total $375) would cut roughly 7 months off your payoff time.