How Does HMRC Know You Sold Your House

  • Written By : Kasra Dash
  • Time : 2 minutes

The sale of a property can have tax implications, and it’s important to know how the tax authorities, such as HM Revenue and Customs (HMRC), track these transactions. 

This article will discuss how HMRC knows you sold your house and what you need to do to ensure you comply with tax laws.

Land Registry Records

The Land Registry records are the first places HMRC checks for information about property sales. 

When you sell a property, the sale must be registered with the Land Registry, and this information is easily accessible by HMRC.

Online Property Portals

Another way HMRC can track property sales is through online property portals such as Rightmove and Zoopla. 

These portals have access to information about properties that are for sale or have been sold and can provide this information to HMRC if requested.

Mortgage Lenders

If you have a mortgage on your property, your mortgage lender may also provide information to HMRC about the sale. 

This is because they want to ensure that the sale proceeds are used to pay off the outstanding mortgage balance.

Estate Agents

Estate agents are also required to report the sale of properties to HMRC. They must provide the following:

  • Information about the sale price.
  • The names of the buyer and seller.
  • Any other relevant details

Tax Return

Finally, if you are required to file a tax return, you must report any property sales on your tax return

This includes information about the sale price, any capital gains tax that may be owed, and other relevant details.


There are several ways that HMRC can track the sale of a property, including the Land Registry records, online property portals, mortgage lenders, estate agents, and tax returns. 

It’s important to ensure that all relevant information is reported accurately and on time to avoid any tax penalties.

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