Calchy.

How Long to Pay Off $3,000 at 15% APR with $400/Month

Paying $400.00/month on a $3,000 balance at 15% APR takes 8 mo and costs $200.00 in interest.

Payoff summary
Months to pay off
8
8 mo
Total interest
$200
Total paid
$3,200
1st month interest
$37.50

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 ~$60.00/month (minimum), payoff takes 6 yrs 7 mo with $1,740.00 in interest — $1,540.00 more than your $400/month plan.

Payment Schedule (First 6 Months)

MonthPaymentPrincipalInterestBalance
1$400.00$362.50$37.50$2,637.50
2$400.00$367.03$32.97$2,270.47
3$400.00$371.62$28.38$1,898.85
4$400.00$376.26$23.74$1,522.59
5$400.00$380.97$19.03$1,141.62
6$400.00$385.73$14.27$755.89

Showing first 6 of 8 payments. Use the full calculator →

Compare Payment Amounts ($3,000 at 15% APR)

Monthly PaymentPayoff TimeTotal Interest
$50.00/mo9 yrs 4 mo (112 mo)$2,600.00costs $2,400 more
$100.00/mo3 yrs 2 mo (38 mo)$800.00costs $600 more
$150.00/mo2 yrs (24 mo)$600.00costs $400 more
$200.00/mo1 yr 5 mo (17 mo)$400.00costs $200 more
$250.00/mo1 yr 2 mo (14 mo)$500.00costs $300 more
$300.00/mo11 mo (11 mo)$300.00costs $100 more
$400.00/mo ◀8 mo (8 mo)$200.00current
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FAQ

How long to pay off $3,000 at 15% APR paying $400/month?
At $400.00/month on a $3,000 balance at 15% APR, payoff takes 8 months (8 payments). Total interest paid: $200.00.
How much interest will I pay on $3,000 at 15%?
With a $400/month payment you'll pay $200.00 in interest over 8 months. Total out-of-pocket: $3,200.00.
What happens if I pay the minimum on $3,000 at 15%?
At the minimum payment (~$60.00/month), payoff takes 6 years and 7 months with $1,740.00 in interest — $1,540.00 more than paying $400/month.
How do I pay off $3,000 faster?
Every extra dollar reduces both the balance and future interest. Adding $100 more per month (total $500) would cut roughly 2 months off your payoff time.