Management charges are 0.45% on investments of up to £250,000, 0.25% on investments between £250,000 and £1m, 0.10% on investments between £1m and £2m, and no charge for investments above that.
There will be no dealing charge for fund transactions, and a charge of up to £11.95 per deal for direct share trades.
Chris Hill, Hargreaves incoming chief executive, said: “The Lifetime Isa will be the first choice for younger generations looking to take their first steps onto the property ladder and we are already seeing great interest from parents and grandparents looking to use a Lisa to support their younger family members in this way.”