X-tee services

The exchange of data between the information systems of the Estonian Tax and Customs Board (ETCB) and a legal person via machine-to-machine interface takes place through X-tee data exchange layer. To use the service, it must be opened by the ETCB. The ETCB does not charge a fee for making X-tee inquiries.

Users with the legal right to represent enterprises and organisations that are registered in the Estonian e-Business Register can join the X-tee through the X-tee Self-Service portal. If you have any questions about joining the X-tee, please contact the Information System Authority (Riigi Infosüsteemi Amet, RIA) customer support at [email protected].

The Estonian Tax and Customs Board can open the X-tee service to the subsystem of the organisation that is actually using the X-tee service.

Additional information and guidance

The list of all subsystems of the Estonian Tax and Customs Board (ETCB) can be found in the X-tee services catalog, where the subsystems created for the X-tee of the ETCB can be found by the registry code of the ETCB — 70000349, the name of the institution — Maksu- ja Tolliamet, the code of the subsystem or the name of the subsystem.

The full list of X-tee services of the ETCB can be found in the catalogue of all X-tee subsystems with methods and WSDL descriptions, where all the subsystems of the ETCB and their services can be found, for example, by the registry code of the ETCB — 70000349.

To open the services in production environment, an application (in free format) must be submitted to the Estonian Tax and Customs Board (ETCB) containing the following information:

  • registry code and name of the service user;
  • name of the service to be used;
  • subsystem of the service user that will use the service;
  • X-tee environment in which the service will be used: production environment.

Please send the application to [email protected].


As a rule, a Service Level Agreement must be concluded between the ETCB and a legal person in order to use X-tee services in the production environment. We will send a draft agreement to the person requesting the opening of services by e-mail.

As an exception, the following services do not require a Service Level Agreement:

  • registration of employment
    EE/GOV/70000349/tor/TOOTREG/v2
    EE/GOV/70000349/tor/TORRGNO/v2
    Additional information
  • sending and receiving form KMD data
    EE/GOV/70000349/mkrliides/downloadMime/v1
    EE/GOV/70000349/mkrliides/uploadMime/v1
    Additional information
  • sending special scheme OSS/IOSS value added tax return data
    EE/GOV/70000349/oss/OssDeclaration/v1
    EE/GOV/70000349/oss/OSSDeclarationMessageStatus/v1
    Additional information
  • sending form TSD data
    EE/GOV/70000349/mkrliides/uploadMime/v1
    EE/GOV/70000349/tsd/confirmTsd
    EE/GOV/70000349/tsd/getTsdStatus
    EE/GOV/70000349/tsd/getTsdFeedback
    Additional information
  • accounting data queries
    EE/GOV/70000349/accounting/prepaymentAccountTransactions.v1
    EE/GOV/70000349/accounting/balanceOfClaims.v1
    EE/GOV/70000349/accounting/claimTransactions.v1
    Additional information

The business client’s terms of use of the e-services environment e-MTA and scheduled maintenance times apply to the listed services. You can find the terms of use of the e-services environment e-MTA by selecting the represented person and then SettingsInformation on using e-MTA from its menu.

Testing in development and test environments is allowed only with test data.


To open services in the test (ee-test) and/or development (ee-dev) environment, a free-form application containing the following information must be submitted to the ETCB:

  • registry code and name of the service user;
  • name of the service to be used;
  • subsystem of the service user that will use the service;
  • X-tee environment;
  • testing period.

Please send the application to the e-mail address [email protected].


Last updated: 23.04.2026

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