Back to Top

 Skip navigation

Data Exchange Agreement between the Central Statistics Office and the Office of the Revenue Commissioners

List of Abbreviations
CSO Central Statistics Office
MOU Memorandum of Understanding
JLG Joint Liaison Group
NDI National Data Infrastructure  
RMF Research Microdata File
Definition of Terms
Act The Statistics Act, 1993 as may be amended from time to time.
Breach Personal data breach’, as defined by Article 4(12) of the General Data Protection Regulation (GDPR).
Controller Has the meaning assigned by Article 4(7) of the GDPR.
Data Information transferred to the CSO.  
Data Provider Revenue, they transfer personal data to the CSO.
Data Recipient Has the meaning assigned by Article 4(1) of the GDPR.  
Personal Data Information transferred to the CSO.  
Processing Has the meaning assigned by Article 4(2) of the GDPR.  
Parties The CSO and Revenue.  
Purpose The collection, compilation, extraction, and dissemination for statistical purposes of information concerning tax and customs administration.  
Revenue Revenue Commissioners.  
Section 851(A) Section 851(A) of the Taxes Consolidation Tax 1997.  

Introduction

This document constitutes an agreement between Revenue and the Central Statistics Office (CSO).  The agreement is to transfer specified Revenue data to the CSO in accordance with the law and in a manner which satisfies Revenue information security and data protection standards. The requirement to share data arises from legislation referenced in the following section.

Legal Basis

Transfer and processing of the data shall be done in accordance with the Act, the Data Protection Act 2018, the GDPR, EU law and in accordance with the CSO’s Code of Practice, in particular its protocol on data matching where one or more datasets originate from outside of the CSO.

The transfer and processing of the data is covered by, inter alia, the following provisions:

  • Section 10 of the Act, concerning the functions of the CSO;
  • Section 13 of the Act, concerning the statistical independence of the Director General of the CSO;
  • Sections 30 and 31 of the Act, concerning the use of the records of public authorities for statistical purposes;
  • Sections 32 and 33 of the Act, concerning the protection of information;
  • Section 851(A)(2) of the Taxes Consolidation Act, 1997, concerning Revenue’s disclosure of taxpayer information in accordance with statutory provisions;
  • Article 6(1)(c) of the General Data Protection Regulation;
  • Article 6(1)(e) of the GDPR concerning processing necessary for the exercise of official authority;
  • Article 9(2)(j) of the GDPR, concerning processing necessary for statistical purposes;
  • Article 89 of the GDPR concerning safeguards and derogations relating to processing for statistical purposes, and;
  • Section 42 of the Data Protection Act, 2018, concerning processing for statistical purposes.

The details of the transfer (as well as the personal data covered) are specified in Annex A which forms an integral part of this Agreement.

Obligations of Revenue (the ‘Data Provider’)

The CSO warrants and undertakes that:

  • It will have in place technical and organisational security measures to protect the personal data against accidental or unlawful destruction or accidental loss, alteration, unauthorised disclosure or access, and which provides a level of security appropriate to the risk represented by the processing and the nature of the data to be protected;
  • It will have in place procedures so that any third party it authorises to have access to the personal data, including processors, will respect and maintain the confidentiality and security of the personal data. Any person acting under the authority of the data recipient, including a processor, is obligated to process the personal data only on instructions from the data recipient.  This provision does not apply to persons authorised or required by law or regulation to have access to the personal data;
  • It will process the personal data for purposes described in Annex A and has the legal authority to give the warranties and fulfil the undertakings set out in this Agreement;
  • It will identify to the data provider a contact point within its organisation authorised to respond to enquiries concerning processing of the personal data and will cooperate in good faith with the data provider, the data subject and the DPC concerning all such enquiries without undue delay;
  • It will process the personal data in accordance with national and EU data protection legislation.

Description of the Transfer

The details of the transfer and of the personal data are specified in Annex A. 

Variation of this Agreement

The Parties may modify this Agreement if required, provided they update the information in Annex A where required.

Responsibility for the data

The Parties agree that ownership of the data is transferred from the data provider to the data recipient when the data is successfully delivered under the Revenue File Transfer System and the associated notification email is acknowledged by the data recipient.  The data recipient is then considered to be the data controller of the information.

Termination

This Agreement will remain in force until a new one is entered into or until it is revoked.

Duration of the Agreement

This DEA will remain in force until a new one is entered into or until it is revoked.  Depending on events, this DEA may be amended, subject to the mutual agreement of the Parties.

This DEA will be reviewed biennially by the Parties.  Any changes to the DEA shall only be made with the mutual agreement of the Parties.

Agreement Authorisation
Revenue Authorisation CSO Authorisation
Name: Emily Swift Name: Francesca Kay
Title & Grade: Assistant Secretary Title & Grade: Assistant Director General 
Signature: Emily Swift Signature: Francesca Kay
Date: 29/04/2026 Date: 29/04/2026

ANNEX A

Purposes of the transfer(s): The transfer is made for the purpose of the CSO’s collection, compilation, extraction, and dissemination for statistical purposes of information concerning tax and customs administration.

Categories of personal data transferred from Revenue (data provider):  The categories of transferred personal data comprise:

  1. name;
  2. location;
  3. contact details;
  4. health;
  5. sex;
  6. identification code;
  7. nationality;
  8. dates;
  9. tax numbers;
  10. occupational information;
  11. property, and;
  12. relationship to others (spouse, child).

Description of the personal data:  The personal data transferred comprises:

  1. Personal Public Service Number (PPSN);
  2. Spouse’s PPSN;
  3. Income and financial data;
  4. Date of Birth (DoB);
  5. Spouse’s DoB;
  6. Revenue ID number;
  7. Revenue internal ID number;
  8. Sex;
  9. Spouse’s sex;
  10. Address;
  11. Eircode;
  12. Nationality;
  13. Spouse’s nationality;
  14. Incapacitated child allowance tax credit;
  15. Amount paid for employing a carer for an incapacitated person;
  16. Spouse’s date of death;
  17. Medical expenses;
  18. First name and surname;
  19. Spouse’s first name and surname;
  20. Telephone number;
  21. Child’s DoB;
  22. Child’s first name and surname;
  23. Child’s PPSN;
  24. Marital status;
  25. PPSN of individuals for whom filer is claiming a relief (e.g. tenant);
  26. Other details of individuals for whom filer is claiming a relief;
  27. Residency indicator for filer spouse and other individuals for whom filer is claiming relief;
  28. Other tax numbers (Value Added Tax/ Income Tax Number) and name associated with the business or filer along with the address;
  29. Name of buyer and seller of a property;
  30. Price of property sold;
  31. Name of secretary and their address;
  32. Name of advisor and their address;
  33. Valuation of property for Local Property Tax;
  34. Property locational details;
  35. Names of partnership and associated information (bank name, tax number, locational information);
  36. Occupational information;
  37. Dates when business etc. began and ceased;
  38. Vehicle registration number.

Special categories of personal data: The special categories of personal data transferred comprise:

Data concerning racial or ethnic origin

  1. Nationality, and;
  2. Spouse’s nationality.

Data concerning health:

  1. Incapacitated child allowance tax credit;
  2. Amount paid for employing a carer for an incapacitated person, and;
  3. Medical expenses.

Data concerning sex life or sexual orientation:

  1. Sex
  2. Spouse’s sex;
  3. First name and surname;
  4. Spouse’s first name and surname, and;
  5. Marital Status;

Frequency and method of transfer of the personal data: Transfers will be carried out as follows. The Revenue File Transfer System (RFTS) is a secure Revenue server and software system under the control of the Revenue Data Centre and is used by the Data Centre to facilitate the transfer of data to multiple external agencies.

Frequency and method of transfer of the personal data
No. File Name Transmission Frequency Exchange Method Personal Data
1

Charitable Status File

Yearly

RFTS

Yes

2

Consolidated (ITForm11 / P35L) Income File

Yearly

RFTS

Yes

3

Corporation Tax - Companies Registration Office Linking File

Half-yearly

RFTS

Yes

4

Corporation Tax Data

Yearly

RFTS

Yes

5

Corporation Tax Data Preliminary Cut

Yearly

RFTS

Yes

6

Corporation Tax Historical Tax Year (April to April) Returns Data

Yearly

RFTS

Yes

7

Dividend Withholding Tax File

Quarterly

Password Protected Email

Yes

8

Foreign Registered Traders Indicator Data

Yearly

RFTS

Yes

9

Help To Buy Scheme Data

Quarterly

RFTS

Yes

10

Income Tax and Corporation Tax Cancelled Registrations Data

Quarterly

RFTS

Yes

11

Income Tax and Corporation Tax Registrations Data

Quarterly

RFTS

Yes

12

Income Tax Form 1 Data

Yearly

RFTS

Yes

13

Income Tax Form 1 Data Preliminary Cut

Yearly

RFTS

Yes

14

Income Tax Form 11 Data

Yearly

RFTS

Yes

15

Income Tax Form 11 Data Preliminary Cut

Yearly

RFTS

Yes

16

IT File Extract (BES)

Yearly

RFTS

Yes

17

Local Property Tax Data

Yearly

RFTS

Yes

18

Mineral Oil Tax Returns

Monthly

RFTS

Yes

19

Pay As You Earn Modernisation (PMOD) File

Monthly

RFTS

Yes

20

PPSN Names and Addresses File with GEOcodes

Quarterly

RFTS

Yes

21

PREM Employer Numbers Employed Data

Quarterly

RFTS

Yes

22

PREM Registrations Data

Quarterly

RFTS

Yes

23

Pub and Restaurant Licenses

Half-yearly

RFTS

Yes

24

Relevant Contracts Tax

Annual

RFTS

Yes

25

Return of Oil Movements File

Monthly

RFTS

Yes

26

Revenue Employment Extract for Arrivals from Ukraine

Weekly

RFTS

Yes

27

Special Purpose Vehicles File

Quarterly

Password Protected Email

Yes

28

Stamp Duty on Property Transactions Data

Monthly

RFTS

Yes

29

Tax Computations

Annual

RFTS

Yes

30

Value Added Tax (VAT) Information and Exchange System Acquisitions Data

Monthly

RFTS

Yes

31

VAT Information and Exchange System Dispatches Data

Monthly

RFTS

Yes

32

VAT Registrations Data

Quarterly

RFTS

Yes

33

VAT Trader Returns (VAT3 and Return of Trading Details) Data

Monthly

RFTS

Yes

34

Vehicle Registration File

Monthly

RFTS

Yes