Transfer Duty Calculator (WA)

The WA Transfer Duty Calculator is available on WA Purchase and Conveyancing General matters on the Conveyancing Details Layout, under the Transfer Duty, Tax & Registration Tab:

Changes to First Home Owner Rate of Duty and Off-the-Plan (OTP) concession has been announced by the WA Government for transactions entered into on or after 21 March 2025. The RevenueWA calculator will be updated for:

  • First Home Owner Rate of Duty in May 2025; and for
  • Off-the-Plan (OTP) Concession in June 2025.

RevenueWA has announced that transactions entered into on or after 21 March 2025 that are eligible for a reduced amount of duty but settle before the changes are implemented, can be reassessed for a refund of duty after settlement.

These changes will be applied to the Smokeball Transfer Duty Calculator as soon as they are available on the RevenueWA calculator. For more information see the RevenueWA website.

Smokeball’s Transfer Duty Calculator currently allows for the following:

  1. Transfer Rates:
    • General Rate
    • First Home Owner Rates (FHOR):
      • New or Established Homes
      • Package Deals/Home & Land Packages
      • Vacant Land
    • Concessional Rate (s 147)
    • Nominal Duty
  2. Foreign Buyers Duty
  3. Off-the-Plan (OTP) Pre-construction and Under construction duty concession/rebate

The First Home Owner Grant is available for selection as a reference so that you can track the Unique Identification Number (UIN).

For more information on Western Australia transfer duty thresholds, eligibility and rates, please refer to the RevenueWA website.

Using the Smokeball Transfer Duty Calculator

Smokeball’s Transfer Duty Calculator will check the following information from your matter to calculate the Transfer Rate, Foreign Buyers Duty and OTP duty concession/rebate:

  • the entered Purchase Price
  • the entered Contract Date (if no date is entered, it will use today’s date)
  • the selected Transfer Rate Type
  • the entered Foreign Buyers Interest percentage
  • the selected Concession Type

The Smokeball Transfer Duty calculator rounds down to the nearest dollar in line with the RevenueWA Online Duties calculator.

Whenever a threshold is exceeded, the Smokeball Transfer Duty calculator will return the General Rate.

As the OTP concession/rebate does not apply to FHOR Package Deals/Home & Land Packages or FHOR Vacant land, if OTP concession is selected with these two rates, the Smokeball Transfer Duty calculator will return the General Rate.

Step-by-step Quick Guide

  1. Enter the Purchase Price and the Contract Date on the Contract & Settlement Details Tab of the Conveyancing Details Layout:



    If no Contract Date is entered, Smokeball’s Transfer Duty Calculator will use today’s date.

  2. Go to the Transfer Duty, Tax & Registration Tab of the Conveyancing Details Layout and you will see that the Purchase Price from the previous tab will flow through to the Dutiable Value field.

    You will also see that Smokeball’s Transfer Duty Calculator will, by default, calculate the General Transfer Rate if no Rate Type is selected.



    If the Dutiable Value is different to the Purchase Price, you can enter the Dutiable Value in the Override Amount field next to the Dutiable Value field. Smokeball’s Transfer Duty Calculator will then use this amount to calculate the duty payable.



    If you need to clear the Override Amount, replace the amount entered with zero and Tab out of the field. This will reset the Dutiable Value back to the Purchase Price.

  3. Select your Transfer Duty Rate Type from the drop-down menu:



    Based on the selection, the Transfer Duty field will show how much is payable:



    If the Purchase is exempt from Transfer Duty, you can select the is Exempt tick box, and this will set the Transfer Duty field to zero:



  4. If Foreign Buyers Duty applies, enter the percentage owned by foreign buyer and the Foreign Buyers Duty field will show you how much is payable:



  5. If OTP Duty Concession applies, select the relevant option in the Concession Type drop-down menu:



    The less Concession field will show you how much concession/rebate applies:



  6. If the buyer is eligible for the First Home Owner Grant, select the tick box, and the Grant Amount will show a default of $10,000 and a field will appear for you to enter the Unique Identification Number (UIN):



  7. The Duty Payable field will show the Full Rate of Duty subtracted by any Concession/Rebates:

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