how to enter and present your 2026 declaration online with the Tax Agency website

Let’s tell you how to access your 2025 Income draftwhich is the declaration that you have to present in 2026 to account for the last fiscal year. The Income Tax calendar has reached its key day, and starting today, April 8, 2026, you can now access your draft and file your return with it.

But before you jump into doing it, remember that It is very important to check that everything is fine. Basically because the Tax Agency makes the draft with all the data collected about you, but there may be errors, and if there are errors and the declaration is erroneous you are going to pay the fine although the error in collecting data was made by the Treasury. It is your responsibility as a citizen to review it.

You should also remember some of the things that you need to prepare in advance to make the declaration. To identify yourself on the Treasury website, you will need to have a digital certificatelike the FNMT certificateor alternatively be registered in the Cl@ve system. It is also convenient view and review your tax databecause they are the ones that the Treasury then uses in the draft.

Enter your draft income tax online

To enter your draft Income Tax Return you must enter the Tax Agency website. For that, you have to enter the page agencytributaria.es/AEAT.internet/Renta.shtmland click on the option Draft/declaration processing service (Direct Income and WEB Income) that will appear at the top in the options of the section Featured Managements.

Before going to the draft, you will first go to the page where you should identify yourself as a citizenso that the Treasury can use your personal draft. To identify yourself you can use your digital certificateincluding the FNMT certificate and that of DNIethe PIN code or Mobile Key, or the reference number.

When you log in, you will go to a screen where you have to choose that you are going to act on your own behalf. Come on, you’re going to do your draft. You can also act as a representative of another person, but this is more for advice, so you must choose the option of Act on your own behalf and click on Confirm.

Now you will finally enter the index of the Income Services 2025. On this page, click on the option Draft/declaration processing service (Direct Income and WEB Income)which is where you will access the draft.

This will take you to the draft declaration. On the first page you have to confirm your Identification Datawhich are personal and those of your spouse if you have one, or your children. Here, You can choose the option to make an individual declaration with the option you have at the top in the box Declarant. When everything is filled in, you will have to go down to the bottom and click on Accept.

Then, you will go to another page where you can incorporate your economic activities such as salaries and mortgage loans for the habitual residence deduction. It will automatically show you registered data to decide whether to add it or not, and if you do so you will have to enter additional data.

And then you will go to your declaration page, where now you have to review all the data to make sure all fields are correct, and add anything that is missing.

On this page, the field Declaration result can be positive or negative. This is what each thing means:

• If the result is negative: It means that you will be charged, that the Tax Agency will have to pay you the amount that appears.
• If the result is positive: It means that you have to pay, and you will have to pay the Tax Agency the amount that appears.

When you have reviewed all this data and consider that everything is fine, you will have to press the button Submit declaration. This is the button to finish the process and submit your tax return online. However, don’t forget review the most important boxes of the declaration.

And also remember that it is important to take your time, and that you will have a stop button. Keep to save your changes and continue reviewing the draft later. Take all the time you need.

In Xataka Basics | Income Guide 2025: calendar, previous steps and how to prepare for the 2026 declaration