However, in the third tax band (purchase price £250,001 to £400,000), only 20% of transactions account for 29% of tax due.
Yn y flwyddyn Ebrill 2019 i Fawrth 2020, roedd dros ychydig tri ran o bump o'r trafodiadau preswyl o fewn y band treth cyntaf (pris prynu £180,000 neu is).