Martin Lewis has offered his tricks to get the most out of the new Help to Buy Equity loans.
Potential homeowners in England with a 5% deposit can borrow up to 20% of the value of a property with a Help to Buy equity loan, interest-free for the first five years.
To qualify you'll need to be a first-time buyer, but beware, the way equity loans work is complicated.
Martin has given advice on how to get the most out of these - and do it properly.
He said: "The government loan that you get is interest free for five years, well that's great, but after that it charges interest.
"1.75% from that first year, that sixth year. And then it goes up by inflation each year after that.
"Now I do have a trick for you on this. This is the trick. It is better to complete this from January to March.
"The reason why, is from that fifth year, the interest starts rising in the April the next calendar year.
"So if you complete on 1st January, the April next calendar year it's 15 months time before the interest rate starts to rise.
"If you complete on the last day of December the April next calendar year is three months away and the interest then rises.
"That could be the difference of over a grand a year in the amount you repay."
More details are available on the Money Saving Expert website.
