More than 121,000 first-time buyers have had a boost from the Stamp Duty exemption in the first seven months of the relief, HMRC figures show.
Since November 2017, first-time buyers purchasing homes worth under £500,000 pay no Stamp Duty on the first £300,000.
New government data shows 121,500 first-time buyers have saved a total of £284m thanks to the cut, with 52,400 of the transactions taking place in the second quarter of 2018.
Over the next five years it is estimated that more than 1m will get on the ladder thanks to the relief, the Treasury said.
Mel Stride, financial secretary to the Treasury, said: “Once again, we can see that our cut to Stamp Duty for first-time buyers is helping to make the dream of home ownership a reality for a new generation – exactly as we intended.”
Meanwhile, the number of residential property transactions liable for Stamp Duty increased to 163,400 between the second and third quarter of 2018.
This was up 4% on the first quarter of 2018 but down 28.6% on the end of 2017, although this period includes months where first-time buyers will have paid the full rate of Stamp Duty.
Stamp Duty residential receipts increased by 4% to £1.95bn between the first and second quarter of 2018, but are down by 15% annually.
Of the 163,400 transactions, 54,500 were for additional properties, the lowest number since the first three months of the extra Stamp Duty charge in 2016.
This also put receipts for additional property purchases at their quarterly level since the second quarter of 2016 at £896m, down 9.3% annually.
The figures also show there were 6,200 additional dwellings refunds totalling £80m during the second quarter.