Money-saving expert Martin Lewis is urging first-time buyers to deposit £1 into Help To Buy (H2B) ISA schemes before the closing deadline on 30 November.
Those who want to benefit from the ISAs now only have a matter of days left to apply, though only a quid is needed to kickstart the handy mortgage saving scheme.
Speaking on The Martin Lewis Money Show last night, he said: "This is an urgent warning for savers and time buyers - miss this and you could be missing out on thousands of pounds worth of free cash.
"The Help to Buy ISA was launched four years ago to help first time buyers hoping to buy a property. It's been a hot topic on our roadshow ever since."
Martin's also explained that there are two different ISAS to choose from - the H2B and the Lifetime Isa (LISA).
He told the audience at a previous roadshow: "Two years ago the Lifetime ISA launched - intended to replace the Help to Buy ISA. There are pros and cons of both.
"But time is at the essence and the clock is ticking on one.
"The big perk of the Help to Buy ISA is that the Government will give you 25% on top for a mortgage deposit if you're going to buy a house in the near future. This is the most important thing you need to know.
"On the 30th November, the Help to Buy ISA closes to new applicants. You will no longer be able to get one."
