Stamp Duty Land Tax (SDLT)

What's new - last updated 3 November 2011
Get the latest updates - technical specifications may change frequently

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Generic documents

Government Gateway technical pack
All applications submitting extensible Markup Language must comply with this protocol to communicate via the Government Gateway.

HMRC IRmark technical pack
Technical specifications and examples of the generic IRmark.

Stamp taxes help chart version 1.1 (PDF 19K)
Guidance and helplines for Stamp Duty Land Tax online customers

Technical documentation

How to use the test services version 2.3.1 (PDF 40K)
Version date 23 June 2010

SDLT baseline schema version 4.16 (zip 10K)
Version date 5 August 2011

Business rules version 1.23 (PDF 782K)
Version date 4 October 2011

Response messages version 2.1H (PDF 181K)
Version date 4 May 2011

GovTalkHeader & IRheader business rules version 1.2 (PDF 75K)
Version date 3 April 2007

SDLT test case data version 5.0 (ZIP 58K)
Version date 21 October 2011

SDLT valid XML example version 1.6
Version date 16 December 2009

SDLT recognition process version 1.1 (PDF 40K)
Version date 23 June 2010

SDLT additional information version 1.5 (PDF 23K)
Version date 23 June 2010

SDLT6 guidance notes
Guidance notes on completing forms SDLT1, SDLT2, SDLT3 and SDLT4 for land transaction returns.

How to notify less common land transactions version 1.0 (PDF 23K)
Version date 25 June 2010

Local Authority code List
HM Revenue & Customs Local Authority code list

SDLT5 substitute technical documentation

Electronic SDLT5 design guidelines version 1.4.1 (PDF 49K)
Version date 23 June 2010

Substitute SDLT5 version 1.0 (PDF 344K)
Version date 1 September 2006

Substitute SDLT5 (continuation sheet) version 1.0 (PDF 342K)
Version date 1 September 2006

Simplified version version 1.1 (PDF 15K)
Version date 21 September 2006

Simplified version (continuation sheet) version 1.0 (PDF 13K)
Version date 18 September 2006

See also