The 2025 Income Tax campaign is entering its decisive phase. The Tax Agency keeps the general deadline for filing Income and Wealth tax returns online open until June 30, 2026.
That day is the general deadline, but not all procedures go until the end of the month. Taxpayers who want the Treasury to prepare their tax return by phone must request an appointment before June 29. Telephone assistance for the campaign is available from May 6 to June 30, according to the official calendar of the Tax Agency.
The campaign started on April 8 for online filing, and the Tax Agency had previously enabled tax data so that taxpayers could advance procedures.
Who must file the tax return
Not all taxpayers are obliged to file a tax return, but many should review it even if they believe it does not apply to them.
The obligation depends on income, the number of payers, the type of income, benefits, rents, economic activities, capital gains, or deductions applied.
The practical recommendation is to check the draft and tax data. Even if the result is zero or there is no obligation, it may be worthwhile to file the tax return if it results in a refund.
How to file the 2025 Income Tax return
The tax return can be filed online through Renta Web, with a digital certificate, electronic DNI, Cl@ve, or reference number.
There is also telephone assistance by appointment and in-person assistance at offices during the period enabled by the Tax Agency.
The online channel remains the fastest. It allows you to consult tax data, modify the draft, add regional deductions, declare rents, review children or ascendants, and confirm the tax return without traveling.
Be careful about confirming the draft without reviewing
One of the most common mistakes is confirming the draft without checking it. The Treasury may have incomplete data or not automatically include certain regional deductions, expenses related to rent, family, disability, housing, or personal circumstances.
It is also advisable to check if there is income from digital platforms, benefits, account earnings, asset sales, cryptocurrencies, or capital gains.
The draft is not an absolute guarantee. The final responsibility for the tax return lies with the taxpayer.
What happens if it is filed late
Filing the return late can have consequences. If you owe money, the Tax Agency can apply surcharges. If you are due a refund, there can also be administrative effects for late filing.
That is why June is the key month. It is not advisable to wait until the last day, especially if data is missing, if an appointment is needed, or if discrepancies with tax information need to be resolved.