New research by Enness Global Mortgages has found that London’s high-end homebuyers paid 12 percent of the stamp duty owed across England in 2020, despite accounting for just 0.1 percent of market transactions.

Enness analysed market sold price records for transactions at £3 million and above to have completed in England during 2020.

The research shows that across the residential property market in England, a total of £2.9 billion was paid in stamp duty in 2021 across 468,929 transactions, with a total of £1.2 billion saved as a result of the stamp duty holiday implemented in July.

As much as £436.4 mill...