| Type of declaration | Declaration Deadline | Payment Deadline |
| Corporate Income Tax Declaration | No later than March 31st of the year following the tax period. | Quarterly installments: no later than the 30th of the last month of the quarter (March 30, June 30, September 30, December 30); or monthly installments: no later than the 15th of each month. |
| Monthly Declaration of Personal Income Tax (Payroll Tax / TAP) | No later than the 20th day of the month following the tax period for taxpayers registered under Corporate Income Tax; for taxpayers registered under Simplified Corporate Income Tax, it is performed within the 20th day of the first month following the end of each calendar quarter. | No later than the 20th day of the month following the tax period for taxpayers registered under Corporate Income Tax; for taxpayers registered under Simplified Corporate Income Tax, it is performed within the 20th day of the first month following the end of each calendar quarter. |
| Monthly Declaration of Social and Health Insurance Contributions | No later than the 20th day of the month following the tax period for taxpayers registered under Corporate Income Tax; for taxpayers registered under Simplified Corporate Income Tax, it is performed within the 20th day of the first month following the end of each calendar quarter. | No later than the 20th day of the month following the tax period for taxpayers registered under Corporate Income Tax; for taxpayers registered under Simplified Corporate Income Tax, it is performed within the 20th day of the first month following the end of each calendar quarter. |
| Withholding Tax Declaration | No later than the 20th day of the following month. | No later than the 20th day of the following month. |
| Value Added Tax (VAT) Declaration | No later than the 14th of the following month. | No later than the 14th of the following month. |
| National Taxes Declaration | No later than the 15th of the following month. | No later than the 15th of the following month. |
| National Fees Declaration | No later than the 15th of the following month. | No later than the 15th of the following month. |
Source: General Directorate of Taxes.