Learner’s Submission: Online Public Service in Greece

“In Greece, the General Secretariat for Information Systems (GSIS) of the Greek Ministry of Economy and Finance has deployed TAXIS, the Greek Taxation Information System. TAXIS, has provided IT support to the central tax authorities, located in Athens, as well as to local tax agencies, located all over Greece, for carrying out tax filing, calculation and payment transactions with citizens and businesses. The TAXIS information system is based on a 3-tier data and application architecture over a virtual private WAN and serves all tax payers and taxation transactions in Greece.

TAXIS services are directly accessible to the public in the form of a web site (www.taxisnet.gr). TAXIS offers a web-based interface from which server-side applications are used to initiate transactions and provide user services. For security purposes, data retrievals for TAXIS transactions are performed upon an off-line maintained replica of involved TAXIS database tables, whereas data updates are replicated off-line to the TAXIS database.

From 2013 all Greek citizens are obliged by law to submit electronically their tax declarations. I use TAXIS from 2005 for submitting my tax declaration. It is a rather usable and user-friendly interface that does not require any special technical knowledge in order to use it. The process of using the TAXIS services demands first of all the registration of the user to TAXIS. The process of registering to TAXIS is the following:

  1. The user fills-in an online registration form.
  2. Then they visit their local taxation office. The employee checks his application form, his identity card and his VAT number and gives him the credentials in order to connect to TAXIS online

After his registration the user is able to use the TAXIS services. In particular, TAXIS offers 36 different taxation services for citizens and businesses, e.g. submission of income tax declaration, deposit of tax identification number, submission of business activity statement etc.

I, and all Greeks since 2013, use annually the submission of income tax declaration service. The process of submitting the declaration is the following:

  1. I sign – in to the TAXIS system through the internet using my personal credential
  2. I select the “Income Tax Declaration Service”
  3. A Form appears in the screen. My personal data (name, address, VAT number, etc) are already filled-in.
  4. I fill-in all the required fields.
  5. I select to submit the form
  6. The system checks if I filled-in all the required fields. If not, an error message pops up and the system highlights the fields I did not fill-in.
  7. The system checks if I put the appropriate data format in each field (e.g. if I put number in a field that requires numbers). If not, an error message pops up and the system highlights the wrong fields.
  8. The system suggests revising the form before the final submission.
  9. I revise the form and I submit the form.
  10. The system calculates the tax and a relevant message appears on the screen.
  11. I go to the bank and I pay the tax (or I pay it through an e-banking system).
  12. I sign – in to TAXIS and I fill-in the transaction number of the payment
  13. An employee checks if the tax has indeed been paid and confirms the transaction
  14. I sign – in to TAXIS and I get informed that my tax payment has been officially confirmed.

Closing, it is worth mentioning that TAXIS received the distinguished award for best practice in the European Union’s Conference “From Policy to Practice” in November 2001.” – Eleni Kaliva – Katerini, Greece



Gouscos, Dimitris, Panagiotis Georgiadis, and Tassos Sagris. “From Introvert IT Systems to Extrovert e-Services: e-Government as an enabler for e-citizens and ebusiness. A framework of principles.” Proceedings of the Electronic & Business Work 2000 Conference. 2000.

Tsiavos, Prodromos, Steve Smithson, and Spyros Kotyvos. “A path of discontinuity: The TAXIS case as a transition from e-government to e-regulation.” Legal Knowledge and Information Systems. Jurix (2002): 53-62.




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