By Centro de Conocimiento Tributario (Tax Knowledge Center) - CCT

One of the roles played by the Internal Revenue Service (SII) is to facilitate tax compliance by taxpayers. To this end, each year it prepares proposals for income tax returns (in 2024, according to official figures (this year 2024, according to official figures, it prepared around 3,900,000), mainly addressed to individuals subject to the global complementary tax (IGC).

Just as last week, in this same space, we published the 6 key questions to ask 6 key questions of the Income Tax ReturnOn this occasion, we will delve into a practical aspect of the subject: Why is it important to check the tax return proposals provided by the SII?

1. They have a dynamic character
   Income proposals are prepared automatically by the tax authority, based on the information and background information contained in its systems, which are provided by withholding agents and informants (employers, banks and other financial institutions, real estate brokers, notaries, among others) through Affidavits.
   This gives them a dynamic nature, i.e., their content and result may vary prior to their submission by the taxpayer, as the information available to the SII changes.
2. It is only a proposal
   As its name indicates, it is an income tax return proposal; it is the sole responsibility of the taxpayer to review, supplement or modify the data contained therein before clicking on "Accept and send".
   Likewise, there are certain incomes that do not have a specific Affidavit to be reported, which prevents the SII from including them in its Form No. 22 proposal; the taxpayer must do it directly, in case of having generated or received them during the previous business year.
3. Support of the declared
   Regardless of whether or not to use the proposal generated by the SII as a basis for filing a tax return, the taxpayer must back up all the information contained therein, in case it is required by the tax authority.
   One of the main ways of crediting income, credits and other amounts declared is through tax certificates (salaries, fees, APV, withdrawals and dividends, among others), which must be requested from the respective withholding agents with whom the taxpayer interacted during the year being declared.

In addition to the above, there are other types of support (deeds, contracts, etc.), which will depend on the nature of each transaction.