Paying your car loan off early by refinancing

Two ways to finish sooner, one of them structural

Most people trying to clear a car loan faster have the same choice in front of them: refinance onto a new loan over a shorter term, or keep the loan they have and throw extra at it. Refinancing builds the shorter term into the contract, so the higher repayment is the schedule rather than a habit. Overpaying leaves you in control week to week, but only works for as long as you keep it up.

Either way the mechanism is the same. A car loan charges interest on the balance you still owe, recalculated as the balance falls, so the total cost isn't fixed. It depends on how fast the balance comes down. The effect is strongest early on, when the balance is at its biggest and each repayment is mostly interest. That's also why refinancing early in a loan does more than refinancing near the end. Our guide to how car loan interest actually works walks through the mechanics.

First: what your current lender charges to be paid out

Refinancing pays your current loan out in full, so the first number to find is what being paid out costs you. Some NZ loan contracts charge little or nothing; others include an early-repayment or break fee that recovers part of the lender's lost interest. It's usually in the fees section of your contract under "early repayment", "prepayment", or "full prepayment".

Two things to establish:

• Whether extra payments are free. Many loans let you pay extra along the way without charge and only apply a fee if you close the loan entirely. If that's your contract, extra repayments are a clean win.
• What full repayment costs. Ask your lender for a payout figure. They're required to give you one. That number, not the balance in the app, is what closing the loan actually costs. Here's how break fees work and how to find yours.

Refinancing to a shorter term, and the alternatives

1. Refinancing to a shorter term. Replace the loan with a new one over fewer years. This is the structural version: the higher repayment is built in, so paying it off early stops being a discipline exercise and becomes the schedule. If the new loan is also priced lower than your current one, the two effects stack. See what refinancing is for how the swap works.
2. Extra repayments on the loan you have. Round your repayment up or add a fixed amount each week. It's the gentlest method: no paperwork, no new loan, and you can stop if money gets tight. The extra goes straight at the balance, and the loan finishes months or years early.
3. Lump sums. A tax refund, a bonus, the sale of something: one payment that knocks a chunk off the balance. A lump sum early in the loan does the most work, because the balance it removes would have accrued interest for the longest.

These aren't exclusive. Plenty of people refinance to a shorter term and still round the repayment up, or keep the existing loan and combine weekly extras with a lump sum when one arrives. The methods all pull the same lever (a faster-falling balance), so they stack cleanly.

The arithmetic, in dollars

You only need three numbers: what you still owe, what you pay each week, and how many payments are left. Multiply the repayment by the payments remaining and you have the total cost of finishing the loan as scheduled. Any strategy that ends the loan sooner replaces some of those future payments with nothing. The difference, minus any early-repayment fee, is your saving.

A rough illustration (not a quote, and not your loan): a loan with $80 weekly repayments and three years left costs about $12,480 to run to the end. Finish it a year early and roughly $4,160 of scheduled payments never happen; part of that was balance you'd have paid anyway, and the rest is interest you no longer owe. The savings calculator runs this arithmetic on your actual numbers, including the shorter-term scenario.

When refinancing to a shorter term is the wrong call

• The fee eats the saving. Very close to the end of a loan, there's little interest left to avoid. A break fee can cost more than early repayment saves. Run the payout figure before deciding.
• You'd have no buffer left. Money paid into a car loan generally can't be drawn back out. If clearing the loan empties your savings, a bad month later can cost more than the interest you avoided.
• More expensive debt exists elsewhere. If you carry other debt that costs more than the car loan, dollars usually do more work there first.

Refinance, or just overpay?

If your loan was priced when your file was weaker, or it came bundled with dealer extras, a refinance can lower the cost of the loan itself, and a cheaper loan is easier to pay off early, whichever method you use. Checking takes a two-minute application and starts with a soft check that doesn't touch your credit file. If your current loan is already sharp, keeping it and paying extra is a perfectly good answer. The point is to decide with the numbers in front of you.

Leverage Finance is a lead-generation referral service, not a lender. All lending decisions, rates, and terms are determined by the lender assessing your application. Nothing on this page is financial advice. It's general information about how refinancing works.