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By TConsult Ltd

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The GATCA app is an essential tool for responsible officers, relationship managers, and financial services professionals responsible for ensuring tax compliance.

If your firm is affected by detection and deterrence of tax evasion regulations such as FATCA, the OECD’s CRS and Automatic Exchange of Information, the US QI and NQI regulations, or Base Erosion and Profit Shifting regulations (BEPS), then the GATCA app is a vital tool for your compliance armoury.

We have brought together documents from a number of different public domain sources and added value through expert curation - giving the documents standard file names and publication dates, arranging them into folders according to jurisdiction, and providing practical tools to support your compliance programme.

Features include:


The GATCA app includes a comprehensive library of public domain documents that have been curated by TConsult to help to explain regulatory compliance obligations in a number of different jurisdictions, including the EU, OECD, US and UK.

The documents are organised into an easily navigable folder structure, and have smart file names to help you quickly identify the document you need.

Documents featured in the app include, but are not limited to:

- Announcements
- Notices
- Bills
- Statutory Instruments
- Regulation
- Competent Authority Agreements
- Intergovernmental Agreements
- FFI Lists
- Forms
- Revenue Procedures
- Instructions
- Guidance Notes
- Latest Lawsuits
- Publications
- Technical Specifications


Search for the document you need by title or keyword.


Carry all the relevant documentation around with you on your smartphone or tablet, and access it even when there is no internet connection available.


Receive new documents and updates every quarter. For more regular updates, please subscribe to our online GATCA Resource Library at


Receive new articles and podcasts containing industry analysis from trusted sources.


Use practical tools to support your work and planning, including the “Is Your Client An American?” test and event timers.

Watch the video walkthrough here:

Visit for further information about GATCA and the GATCA Resource Library.
If you have any questions or feedback about the app, please email

What's New in Version 3.0.4

New documents:
CAA Portugal (2016 06 03)
CAA Slovak Republic (2016 04 26)
CAA Denmark (2015 11 01)
CAA St Vincent & The Grenadines (2016 06 07)
OECD CRS FAQs (2016 06 01)
Cayman Islands FATCA Guidance (2016 04 12)
Cayman Islands Gazette (2016 04 06)
Form 1042-S (2016)
Instructions 1042-S (2016 04 25)
IRS FBAR Reference Guide
AEOI Commitments (2016 07 26)
Filing Information Returns Electronically FIRE (2016 06 20)
Notice 2016-42 Proposed QI Agreement
FATCA – FAQs General (2016 07 04)
OECD Guidance on the implementation of country by country reporting beps action 13 (2016 06 29)
IRS United States Income Tax Treaties A to Z (2016 07 21)
FATCA IDES Technical FAQs (2016 07 19)
CAA British Virgin Islands (2016 07 13)
Malta US DTT
Malta Income Tax Act LN 384 of 2015
Malta CRS Guidelines
Notice 2015-10 Amendment of Refund Procedures
Announcement 2016-27 Update on Jurisdictions Treated as if an IGA is in Effect
IGA Azerbaijan M1A 2015 09 09
Understanding IGA Agreement - Australia
Understanding IGA Agreement - Austria
IGA Correction Bahamas 2015 05 12
IGA Barbados Correction 2015 09 22
Understanding IGA Agreement - Belgium
OECD CRS Status Message XML Schema User Guide for Tax Administrations (2016 07 01)
UK Statutory Instrument (CD) 2015 No 1839 (2015 11 20)
EU Commission's State Aid Investigations of Transfer Pricing Rulings (U.S. Treasury White Paper) 
EU Council Directive 2011/16/EU - Administrative Co-Operation of Taxation
EU Council Directive 2014/107/EU - Mandatory AEoI amending Directive 2011/16/EU
Form W-8BEN-E (2016)
Form 14345 QI Application (2014)
Form 4419 Application for FIRE (2016)
MCAA Signatories List (2016 06 28)
Status of Convention (2016 07 29)
Report to G20 - Global Forum AEOI Roadmap for Developing Countries (2014 08 05)


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This app is designed for both iPhone and iPad
  • £19.99
  • Category: Finance
  • Updated:
  • Version: 3.0.4
  • Size: 463 MB
  • Language: English
  • Developer:

Compatibility: Requires iOS 8.2 or later. Compatible with iPhone, iPad, and iPod touch.

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