Deals & rates
Cheapest Car Finance: How to Get the Best Rate
How to get the lowest true cost — comparing APR not monthlies, boosting your credit and timing it right.
The cheapest car finance is the deal with the lowest APR over the shortest term you can afford — not the one with the lowest monthly payment. A low monthly usually means a longer term, and a longer term means more interest.
Three levers cut the true cost: a lower APR, a bigger deposit, and a shorter term. Get all three working and you pay hundreds, sometimes thousands, less. Here's how to compare deals so the cheapest one actually wins.
How to get cheaper car finance
You get cheaper car finance by lowering the APR, putting down a bigger deposit, and choosing the shortest term your budget allows. Each one cuts the total interest.
On a £20,000 car at 9.9% APR, dropping from 48 to 36 months cuts the interest from about £3,700 to roughly £2,750 — a £950 saving for paying it off sooner. Test your own figures on the APR & true-cost calculator.
- Lower the APR: a stronger credit file and a personal loan instead of dealer finance both tend to bring the rate down.
- Increase the deposit: borrowing less means less interest — every £1,000 down saves interest across the whole term.
- Shorten the term: 36 months costs far less in interest than 60, even at the same APR.
Compare APR, not monthly payments
Always compare car finance deals on APR and total cost, never on the monthly payment alone. A lower monthly almost always hides a longer term and more interest.
The 60-month deal has the lowest monthly but costs nearly £2,000 more than the 36-month one. The APR calculator turns any monthly quote back into a total, so you can see past the headline.
| Term | Monthly | Total interest | Total payable |
|---|---|---|---|
| 36 months | ≈ £555 | ≈ £2,750 | ≈ £22,750 |
| 48 months | ≈ £452 | ≈ £3,700 | ≈ £23,700 |
| 60 months | ≈ £390 | ≈ £4,680 | ≈ £24,680 |
What affects your car finance rate
Your APR is set mainly by your credit file, the deposit, the term, and the type of finance. Improve any of these and the rate usually falls.
- Credit score: a stronger file unlocks lower rates — see what credit score you need.
- Deposit size: more money down lowers the lender's risk and often the rate.
- Finance type: a personal loan can undercut dealer PCP or HP for buyers with good credit.
- Car age: used and older cars sometimes carry higher rates than new.
The best time to get a cheaper deal
The best time to find a cheaper deal is at the end of a sales quarter or during a plate change, in March and September. Dealers chasing targets discount harder.
End-of-quarter (March, June, September, December) and plate-change months are when offers and 0% deals appear. A strong credit file at the right moment is the cheapest combination — read low rate car finance for the full timing playbook.
Work out the true cost of any rate
Before you commit, run every deal through the same true-cost check so the genuinely cheapest one wins. Compare totals, not monthlies.
Use the APR & true-cost calculator to see the total interest on any rate, then compare deals side by side on the main car finance calculator. If a 0% offer is in the mix, check it against a discount on 0% car finance deals.
In plain English
Frequently asked
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