Auto Loan Refinance Savings Calculator

Powerful refinance tool for car loans that estimates new payment interest saved break even month and payoff time. Include fees points penalties and extra payments. Compare financing fees versus paying upfront to see true savings. Explore amortization schedules monthly cash flow impacts and cost after fees with clear results built for shoppers and planners.

Current Loan
$

Refinance Offer
$
Optional acceleration applied on top of the new standard payment.
Reset
Detailed Results
Old monthly payment $598.66
New monthly payment (base) $487.08
New monthly payment (with extra) $487.08
Monthly change without extra +$111.58
Monthly change with extra +$111.58
Remaining months on old path 48
Months to pay off new loan 60
Time saved -12 months
Total interest remaining (old) $3,735.49
Total interest (new) $3,724.78
Fees and points $500.00 (financed)
Prepayment penalty $0.00
Total lifetime savings -$489.28
Break-even month (vs upfront costs) 0

Notes: Monthly change without extra compares old payment to the new base payment. Break-even uses upfront costs only (fees paid at closing plus any prepayment penalty) divided by the monthly savings without extra.

Amortization Schedules

Download full schedules as CSV for deeper analysis.

Old Loan — first 12 months
MPayIntPrinBal
1 $598.66 $145.83 $452.82 $24,547.18
2 $598.66 $143.19 $455.46 $24,091.71
3 $598.66 $140.53 $458.12 $23,633.59
4 $598.66 $137.86 $460.79 $23,172.80
5 $598.66 $135.17 $463.48 $22,709.32
6 $598.66 $132.47 $466.19 $22,243.13
7 $598.66 $129.75 $468.90 $21,774.23
8 $598.66 $127.02 $471.64 $21,302.59
9 $598.66 $124.27 $474.39 $20,828.20
10 $598.66 $121.50 $477.16 $20,351.04
11 $598.66 $118.71 $479.94 $19,871.10
12 $598.66 $115.91 $482.74 $19,388.36
New Loan — first 12 months
MPayIntPrinBal
1 $487.08 $116.88 $370.20 $25,129.80
2 $487.08 $115.18 $371.90 $24,757.89
3 $487.08 $113.47 $373.61 $24,384.29
4 $487.08 $111.76 $375.32 $24,008.97
5 $487.08 $110.04 $377.04 $23,631.93
6 $487.08 $108.31 $378.77 $23,253.16
7 $487.08 $106.58 $380.50 $22,872.66
8 $487.08 $104.83 $382.25 $22,490.42
9 $487.08 $103.08 $384.00 $22,106.42
10 $487.08 $101.32 $385.76 $21,720.66
11 $487.08 $99.55 $387.53 $21,333.13
12 $487.08 $97.78 $389.30 $20,943.83
Refinance Summary
Old payment
$598.66
New payment
$487.08 (+$0.00 extra)
Upfront costs
$0.00
Total savings
-$489.28

Fees and points are always counted as costs whether financed or paid at closing. Total savings compare remaining interest on the old loan versus interest on the new loan plus all fees and any prepayment penalty.

Assumptions
  • Standard fully amortizing loans with monthly compounding and no balloon payment.
  • Discount points are calculated as a percent of the current balance.
  • Extra payment is applied to principal on the new loan only.
  • Taxes, insurance, and late fees are excluded.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.