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.

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.

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

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 Settings – Information 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: 24.09.2026

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