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As a solicitor or conveyancer, use this calculator to help work out the tax due on transactions if claiming multiple dwellings relief (MDR).

The relief can be claimed where a taxpayer buys more than one dwelling in Wales from the same seller either in a single transaction with the same effective date or in a number of linked transactions (multiple dwellings).

You’ll need to know:

  • if main rates or higher rates of the tax apply
  • the total purchase price for all dwellings
  • the number of dwellings involved

If the transaction includes subsidiary dwellings or linked transactions then instead use: 

These scenarios will be included in the online calculator as we improve our services. We'll update this page when added.

Welsh Revenue Authority online service

For more complex cases, or if you're uncertain how the tax or relief applies:

Using browsers for Welsh Revenue Authority online services