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The experts at Heras-Sasot Abogados warn of the most common errors in the draft and recommend reviewing key data to avoid penalties or undue payments.
With the arrival of the tax return filing season, thousands of taxpayers in Spain turn to the draft provided by the Tax Agency, trusting that the information is correct. However, tax experts warn that this document does not always include all the necessary information , which can lead to errors, overpayments, or future tax adjustments.
Reviewing your tax return before submitting it is not only advisable, but key to optimizing the result and avoiding problems with the tax authorities.

The 4 things you should check before filing your tax return
1. Updated personal and family information
Changes such as a new address, the birth of children, disability, or changes in marital status can directly affect the outcome of the tax return. If this information is not accurately reported, the taxpayer could lose tax benefits.
2. Regional and state tax deductions
One of the most sensitive points. Deductions for renting a home, maternity, large families, or certain investments They don't always appear automatically in the draft.In many cases, it is the taxpayer who must enter them manually.
3. Compensatory pensions and divorce situations
Family circumstances arising from separations or divorces have a tax impact. Compensatory pensions or alimony payments can modify the taxable income and, therefore, the final result of the tax return.
4. Income from rentals or economic activities
Accurately declaring income is essential, but so is including all associated deductible expenses. In the case of rental income, errors or omissions are one of the main causes of subsequent audits.
The draft is not always final.
Although the draft is a useful tool, experts point out that it is prepared with the information available to the Administration , which is not always complete. Therefore, relying on it blindly can lead to errors that, in the medium term, result in requirements or penalties.
Prior review: key to avoiding problems with the tax authorities
Heras -Sasot emphasizes the importance of analyzing each case individually, especially in complex situations or those with financial implications. This is the best way to ensure compliance with tax obligations . A timely review can make the difference between an accurate tax return and future problems with the tax authorities.








