Electronic Submission of tax returns
Individuals and companies who have an obligation to submit a tax return must do so electronically.
All individuals who have gross income which falls under Article 5 of the Income Tax Law must submit a tax return. Exemptions and/or extensions are usually provided.
Administrative penalties
Administrative penalties amounting to €100 or €200 depending on the specific case, will be imposed for late submission of declarations or late submission of supporting documentation requested by the Commissioner of Taxation. In the case of late payment of the tax due, a penalty at the rate of 5% will be imposed on the unpaid tax. An additional penalty of 5% is imposed if the tax remains unpaid two months after the payment deadline.
Note:
The rate of interest on late payment of tax is set by the Minister of Finance through a decree and it is imposed on a monthly basis. The rate for 2025 is 5,5%. The applicable interest rate for the previous years is as follows:
| Period | Interest rate % |
| Up to 31/12/2006 | 9 |
| 1/1/2007 – 31/12/2009 | 8 |
| 1/1/2010 – 31/12/2010 | 5,35 |
| 1/1/2011 – 31/12/2012 | 5 |
| 1/1/2013 – 31/12/2013 | 4,75 |
| 1/1/2015 – 31/12/2016 | 4 |
| 1/1/2017 – 31/12/2018 | 3,5 |
| 1/1/2019 – 31/12/2019 | 2 |
| 1/1/2020 – 31/12/2022 | 1,75 |
| 1/1/2023 – 31/12/2023 | 2,25 |
| 1/1/2024 – 31/12/2024 | 5 |