Martin Lewis has once again come to the rescue, helping countless individuals save a fortune with his savvy financial tips. In particular, for drivers looking to cut costs, Lewis has shared some insider knowledge on how to secure up to 50 percent off car insurance premiums.

On his BBC podcast, Lewis revealed the optimal time to hunt for insurance, saying: "You always want to be getting quotes around 26 days before you want the new policy to start. If it's anything between about 18 days and 28 days, you're pretty fine. 26 is the sweet spot."

Motorists are already reaping the benefits of Lewis's advice, with one elated user on X sharing their success story. Elizabeth, known as @EMCE1001 online, tweeted: "@MartinSLewis took on your advice about car insurance renewal, current provider £2200 using your tools/advice managed to get it for £835 - insane what some are charging! Thank you for all the help x".

People took to the thread to share their own stories in response, with one replying: "My contents insurance has increased by 50%! And even a phone call saying I was leaving didn't lower it...so tonight's job is to look for someone else!"

A second added: "Got over a £100 off for me!" and a third commented: "Mega difference, that."

A third simply exclaimed: "Mega difference that." However, one user wanted to know more about how she got so much off the premium and asked: "What tools did you use?"

Elizabeth praised the advice she found online, mentioning: "His website has a whole section on there about what steps to follow when getting your renewal, super easy and helpful."

However, not everyone was pleased. One individual pointed out: "And yet...my current provider quoted my over £100 cheaper than anything I could find on comparison sites, even using his tips. Worth checking of course ... but sometimes an [insurer] is OK. And it’s £80 cheaper than last year."

Despite Elizabeth's blemish-free driving record with a Crossland, some still saw her £800 premium as steep. A sceptical commenter asked: "What car are you driving? Even your new quote seems extortionate."

It appears that securing a quote about 26 days before insurance renewal is key, because insurers calculate costs based on behavioural patterns and likelihood of claims, charging higher-risk groups more.

Lewis shed light on the matter, stating: "What insurance data shows, is that people who renew on the last day are riskier. You're riskier if you are insuring at the last minute."

He added: "You can sort of understand how that behavioural trend works. People who insure at the last minute haven't put that much practice in, and aren't as prepared, and aren't as organised as everyone else. That translates into actuarial risk and the amount of claims. What you have to do is shift yourself into the risk category where people are the lowest risk, and the lowest risk is around three to four weeks before renewal."