Calchy.

How Long to Pay Off $8,000 at 20% APR with $500/Month

Paying $500.00/month on a $8,000 balance at 20% APR takes 1 yr 7 mo and costs $1,500.00 in interest.

Payoff summary
Months to pay off
19
1 yr 7 mo
Total interest
$1,500
Total paid
$9,500
1st month interest
$133.33

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 9 yrs 1 mo with $9,440.00 in interest — $7,940.00 more than your $500/month plan.

Payment Schedule (First 6 Months)

MonthPaymentPrincipalInterestBalance
1$500.00$366.67$133.33$7,633.33
2$500.00$372.78$127.22$7,260.56
3$500.00$378.99$121.01$6,881.56
4$500.00$385.31$114.69$6,496.26
5$500.00$391.73$108.27$6,104.53
6$500.00$398.26$101.74$5,706.27

Showing first 6 of 19 payments. Use the full calculator →

Compare Payment Amounts ($8,000 at 20% APR)

Monthly PaymentPayoff TimeTotal Interest
$150.00/mo11 yrs 1 mo (133 mo)$11,950.00costs $10,450 more
$200.00/mo5 yrs 7 mo (67 mo)$5,400.00costs $3,900 more
$250.00/mo3 yrs 11 mo (47 mo)$3,750.00costs $2,250 more
$300.00/mo3 yrs (36 mo)$2,800.00costs $1,300 more
$400.00/mo2 yrs 1 mo (25 mo)$2,000.00costs $500 more
$500.00/mo ◀1 yr 7 mo (19 mo)$1,500.00current
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FAQ

How long to pay off $8,000 at 20% APR paying $500/month?
At $500.00/month on a $8,000 balance at 20% APR, payoff takes 1 year and 7 months (19 payments). Total interest paid: $1,500.00.
How much interest will I pay on $8,000 at 20%?
With a $500/month payment you'll pay $1,500.00 in interest over 19 months. Total out-of-pocket: $9,500.00.
What happens if I pay the minimum on $8,000 at 20%?
At the minimum payment (~$160.00/month), payoff takes 9 years and 1 month with $9,440.00 in interest — $7,940.00 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.