How to Refinance Your Auto Loan and Lower Your Monthly Payment

The break-even maths, which lenders to consider, and what to check before you refinance your car loan.

$100+/mo
Average saving from auto loan refinancing
1–2 weeks
Time to complete refinancing
4–8 months
Typical break-even period

Auto loan refinancing is one of the fastest and simplest financial switches available — typically 1–2 weeks with no closing costs. The most common trigger is a credit score improvement since the original purchase, where dealer financing was offered at a premium rate.

Common reasons people switch

  • You accepted dealer financing without shopping independently — dealer rates are often inflated
  • Your credit score has improved since the original loan was issued
  • Market interest rates have fallen since you originally financed
  • Your current lender has a high complaint rate for payment processing problems

Step-by-step guide

1

Check that your car's value exceeds the loan balance

Most lenders will not refinance if you're underwater — owing more than the car is worth. Check your car's current market value on Kelley Blue Book or NADA Guides.

Data pointLTV requirements for auto refinancing are typically 80–125%. Some lenders go up to 125% LTV — which may allow refinancing even if you're slightly underwater.
2

Confirm there's no prepayment penalty on your current loan

Check your original loan agreement for a prepayment penalty. These are less common on auto loans but do exist — particularly on loans originated at dealerships.

3

Check your current and prospective lenders on ComplaintRate

Auto loan complaint patterns often cluster around payment processing errors, incorrect credit reporting, and title release delays after payoff.

4

Prequalify at 3–5 lenders without hard pulls

Banks, credit unions, and online auto lenders all offer refinancing with soft-pull prequalification. Credit unions consistently offer competitive rates.

Data pointMultiple auto loan hard inquiries within a 14-day window count as a single inquiry under FICO's rate shopping rule.
5

Understand the impact on your GAP insurance

If you purchased GAP insurance through your original lender, refinancing cancels that policy. Purchase replacement GAP coverage through the new lender before the old loan closes.

6

Accept the best offer and complete the paperwork

The new lender pays off your old loan directly. Continue making payments on your old loan until you receive written confirmation it has been paid off.

7

Confirm title transfer to the new lender

The new lender becomes the lienholder on your car title. Request written confirmation of the title update.

Before you switch: check the complaint rate of your new provider

ComplaintRate calculates CFPB complaint rates per 1,000 customers — so you can compare institutions of any size on a level playing field.

  • Complaint rate per 1,000 customers for auto loans (search ComplaintRate)
  • Whether the lender releases titles promptly after payoff
  • Maximum loan age — some lenders won't refinance vehicles over 7–10 years old
  • Whether GAP insurance is available through the new lender

Common mistakes — and how to avoid them

Mistake

Forgetting to cancel or replace GAP insurance when refinancing

Fix

GAP insurance purchased through your original lender is cancelled when that loan is paid off. Purchase replacement coverage before closing.

Mistake

Extending the loan term without calculating total interest cost

Fix

Extending from 3 years remaining to 5 years may lower monthly payments but significantly increases total interest paid.

Mistake

Not checking if the car qualifies (too old, too many miles, underwater)

Fix

Most lenders have vehicle age (10 years max) and mileage limits (usually 100,000–150,000 miles).

Frequently asked questions

How soon can I refinance after buying a car?

Most lenders require the car to have been purchased at least 30–90 days ago and for you to have made 1–3 payments.

Will auto loan refinancing hurt my credit score?

A single hard inquiry reduces your score by 2–5 points temporarily. Multiple inquiries within a 14-day window count as one.

Can I refinance an auto loan if I have bad credit?

It's more difficult but possible. Credit unions are often more flexible than banks.

Other switching guides

How to Switch Credit CardsHow to Switch Mortgage LenderHow to Switch BanksHow to Refinance a Personal LoanHow to Switch Student Loan ServicerHow to Switch Money Transfer ProviderHow to Handle Debt Collection