The UK’s only fully
comprehensive property
tax calculator

Our mission is to ensure that every law firm in the country has access to an accurate, fully audited Stamp Duty Calculation for every one of their clients – personal or corporate – first time, every time.

Years of Experience
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Exemptions, Exceptions and Reliefs in SDLT legislation
Straightforward Screens
Comprehensive Solution

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De-Risk Your Business

Compass is a one stop Stamp Duty Calculator for all your SDLT needs, helping you to ensure that SDLT is calculated correctly for each of your clients first time, every time, and giving you the audit trail you need to prove it. Produce accurate SDLT numbers for your clients regardless of their circumstances or the type of property being purchased, avoiding the costs of:

  • Underestimated SDLT due to missed factors like additional properties, leading to loss of property and client dissatisfaction.
  • Overestimated SDLT leading to lengthy reclaim processes with HMRC and potential claims against your firm by the client.
  • Loss of professional reputation and higher PI insurance costs.

Key Features

Simple Web-Based Interface

Produces complete audit trail with breakdown of calculation and return completion instructions

Warning messages where transactions are not normal for SDLT purposes

Direct referral to Expert Advisors for detailed advice


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©SDLT Compass 2022

Registered No.13248338

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18 Nursery Court

Kibworth Business Park