If you bought a used car and it has developed a fault, the clock is ticking. Under the Consumer Rights Act 2015, you have a “Short-Term Right to Reject” the vehicle for a full refund—but this right only lasts for exactly 30 days from the date of purchase (or delivery). Miss this deadline by even 24 hours, and you lose your right to an automatic refund. Instead, you have to let the dealer try to fix it.
Don’t guess. Use our calculator below to see exactly when your legal rights change.
The 30-Day Deadline Calculator
Enter the date you took ownership of the car to see your refund deadline.
Check Your Refund Deadline
The Rules: What This Deadline Means
1. Before the Deadline (Days 0–30) This is your “Golden Window.” If the car has a significant fault (e.g., gearbox failure, persistent warning lights, dangerous brakes):
You can reject the car immediately.
You are entitled to a full cash refund.
You do not have to let the dealer repair it first.
The dealer must collect the car at their own expense (unless your contract says otherwise).
2. After the Deadline (Day 31 onwards) Once the 30 days pass, the rules change instantly. You can no longer demand a refund straight away.
The “One Chance” Rule: You must give the dealer one opportunity to repair or replace the faulty part.
If the repair fails: Then you can ask for a refund (though they can deduct money for the mileage you’ve driven).
Free Template: The “Rejection Letter” (Within 30 Days)
If the calculator shows you are still within the “Green Zone,” send this letter immediately. Do not call them—you need proof in writing.
Copy and paste this text:
Subject: Formal Rejection of Vehicle – Short-Term Right to Reject – [Registration Number]
To [Dealer Name],
Ref: Vehicle Registration: [Reg Number] | Purchase Date: [Date]
I am writing to formally reject the vehicle detailed above under the Consumer Rights Act 2015.
I took possession of the vehicle [Number] days ago. As this is within the statutory 30-day “Short-Term Right to Reject” period, I am exercising my right to a full refund.
The Fault: The vehicle is not of satisfactory quality / not fit for purpose because: [Describe the fault, e.g., The gearbox grinds in 3rd gear].
As this fault is present at the point of sale, you are in breach of contract. I am legally entitled to reject the goods without offering you the opportunity to repair them.
I request that you collect the vehicle and process a full refund of £[Price] to my bank account within 14 days.
Sincerely, [Your Name]
Frequently Asked Questions
Does the dealer have to inspect the car?
Yes. You cannot just reject a car because you changed your mind. The dealer has the right to verify the fault exists. However, they cannot charge you for this inspection if a fault is found.
What if I bought from a private seller?
The 30-day rule does not apply. Private sales are “Sold as Seen.” Unless the seller lied to you (e.g., said “it runs perfectly” when the engine was blown), you have very few rights. This calculator is only for cars bought from Traders/Dealers.
Does the warranty matter?
No. A “3-month warranty” is an extra insurance product. It does not replace your statutory rights. Even if your warranty says “engine parts only,” the Law says the whole car must be fit for purpose. Always use your Consumer Rights first, not the warranty.
(Sources: Legislation.gov.uk – Consumer Rights Act 2015, Citizens Advice – Problem with a used car, MoneyHelper – Car Rights)
We are not solicitors. This tool calculates dates based on the Consumer Rights Act 2015 timeframe. Complex cases may require legal advice.
