How to file a supplementary tax return, step by step

How to file a supplementary tax return, step by step

Have you made a mistake when filing your income tax return? Tranquillity! It has a solution. The supplemental statement allows you to correct any mistakes you have made. In this post we explain what it consists of and how to do this management in detail. Take note!

What is a supplementary statement?

A supplementary declaration is a procedure that you can carry out when there is something to correct in the annual income tax return or in other tax returns. When we file a supplemental return we can correct errors or add information that has been omitted. For example, it is a common mistake to apply a deduction that, in reality, did not apply to us. This usually occurs when filing the Income Tax return, taking as reference the one submitted in the previous year, without taking into account possible personal or legislative changes.

In which cases can a supplementary declaration be submitted?

It is important to keep in mind that you can make a complementary declaration only in the event that the Treasury is the one harmed by an error or several minor errors made in the original declaration. For other cases, there are different statements:

  • Corrective declaration: it is presented when changes must be made so that the Tax Agency returns money to us.
  • Substitute declaration: made when the original declaration has many or very significant errors. In this case, it is necessary to make a new declaration to replace it.

When do you have to submit a supplementary declaration?

Making a complementary declaration allows you to correct errors or add information that had been overlooked in the original declaration, regularizing the situation with the Treasury. However, knowing when a supplemental statement is appropriate and when a substitute statement is necessary, in the case of multiple errors, for example, can be confusing.

The work of the Afianza group can be decisive at this point, helping you determine if a complementary declaration is required. Having professional help is key to avoiding tax problems. Afianza is responsible for analyzing the situation and guiding the taxpayer in the correct process, ensuring adequate and efficient management.

Once an error is identified in the original return, it is advisable to file a supplemental return within the deadline established for the corresponding tax return since, if it is filed out of time, it is very likely that you will have to face interest.

Furthermore, if it is the Treasury that detects the failure and requires the complementary declaration, you may have to assume additional penalties.

How to make a supplementary declaration?

For make a supplementary statement, it is necessary to follow a series of specific steps marked by the Tax Agency. Here is a step-by-step guide that explains how correct the annual income tax return:

  1. Access the Renta Web portal: Go to the Tax Agency website and locate the service “Draft/declaration processing (WEB Income)”. Identify yourself with your digital certificate, DNIe, Cl@ve or reference. This will take you to your personalised Renta services.
  2. Confirm the original statement: Before starting the supplemental return, make sure your previous return was filed. This is indicated by the message “Your return is being processed” in the “Processing Status”.
  3. Modify the declaration: Under "Available Services", select the "Modify filed return" option. The Tax Agency may suggest making a complementary one if it detected discrepancies, which will be shown in the "One-click complementary" section if enabled.
  4. Make the necessary modifications: Once in the Declaration Summary, adjust any incorrect or missing data. Access the specific concepts in the declaration sections and apply the corresponding changes.
  5. Check and complete the result: After editing the declaration, click on “Modify declaration”. Complete the deposit or return amount of the initial declaration, and choose the type of complementary declaration.
  6. Validate and submit the declaration: Make sure there are no errors using the “Validate” button, and if everything is in order, select “Submit return”.
  7. Confirm the presentation: Check the “Agree” box and select “Sign and Send”. Upon completion, you will see the presentation message, along with a PDF with the details of your declaration.

This process ensures that your supplementary declaration is correctly recorded and you can save it as proof.

In any case, both a supplementary return and any original tax return are important and complex procedures that could lead to penalties. Its correct processing requires exhaustive knowledge of your personal situation and current legislation. Therefore, it is essential to carry out these procedures with a good tax advisor who will guide you during the process. Precisely, the need to present a complementary, corrective or substitute declaration comes from making an original declaration without having the necessary professional support.

In conclusion, to avoid unnecessary procedures, correctly comply with your tax obligations and apply the corresponding deductions, contact Afianza now, a team of consultants specialised in tax matters who work to ensure that your tax return is impeccable.

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