Tax Management and Late Filing Surcharges under LGT

Tax Management Concept

Tax administration is defined in Article 117 of the General Tax Law (LGT), based on its specific functions. By systematizing the long list of functions contained in the article, it can be said that the core of tax administration lies in the reception and processing of claims and the demand for self-assessments of tax liability.

Tax management produces different procedures and actions, among which procedures for declarations and self-assessments stand out, culminating in liquidations. The management area is also responsible for a series of instrumental tasks and general administration, such as:

• Information services
• The development and maintenance of censuses
• The issuance of certificates
• The issuance of Tax Identification Numbers (TIN)
• Other broad administrative considerations

Therefore, management activity has a diverse, broad, and general character, unlike the more specialized functions developed by the inspection and collection departments.

Late Self-Assessments and Spontaneous Filings

Article 27 of the LGT regulates surcharges for late filings made without a prior request from the administration. In the event that a taxpayer complies with their obligations of disclosure or self-assessment belatedly but spontaneously—meaning without any formal request being conducted by the Administration—the application of interest and penalties is limited, though a series of surcharges will apply.

In essence, the surcharge operation is a function of the delay in voluntary compliance:

• 5% surcharge: If compliance occurs within three months after the end of the reporting and payment period.
• 10% surcharge: If compliance occurs between three and six months.
• 15% surcharge: If compliance occurs between six and twelve months.

In these three cases (up to twelve months), there is no requirement for default interest or the imposition of sanctions. However, for compliance made after the twelve-month mark, the following applies:

• 20% surcharge: For compliance made twelve months after the deadline. In these cases, there are no sanctions, but default interest is required from the end of the twelve-month period immediately following the voluntary compliance period until the date of actual compliance.

In all cases, self-assessments must explicitly identify the untimely liquidation of the tax period to which they relate and must contain only data for that specific period.