Self-employed tax calendar for 2026

You can find more information about the forms in section 4.1 of our help center.

As every year, the Spanish Tax Agency (AEAT) publishes the calendar with the main deadlines for complying with tax obligations.

However, since self-employed individuals have fewer obligations than those included in that general list, in this article we provide a summary of the 2026 tax calendar applicable to most self-employed professionals.

Deadlines for filing self-assessments with direct debit

The deadline for submitting self-assessments with direct debit depends on the filing deadline of each form. If that date falls on a non-working day, the deadline is moved to the next working day. In that case, the direct debit deadline is generally extended by the same number of days as the filing deadline.

In addition, between the end of the filing deadline for a self-assessment with direct debit and the end of the general voluntary filing and payment deadline for that same self-assessment, there must be at least three working days or five calendar days. For these purposes, non-working days include Saturdays, Sundays, national public holidays, and regional or local holidays affecting the municipality where the IT Department of the Spanish Tax Agency is located.

Below are the general deadlines and the direct debit deadlines for each form corresponding to the year 2026.

Below is a brief description of the forms.

Form 111: quarterly declaration of withholdings from employees* and professionals (*at the moment, we do not cover cases where self-employed individuals have employees)

Form 115: quarterly declaration of rental withholdings

Form 130: advance payment of IRPF, payments on account of Personal Income Tax

Form 303: quarterly VAT return

Form 349: recap statement of intra-Community transactions

It is important to mention that in April the period for filing the 2025 Income Tax Return (Form 100) begins. At the moment, this form is not available in our application.

Peace of mind and control

Complying with the self-employed tax calendar is not only about submitting forms on time, but also about having your information prepared, organized, and reviewed before the deadlines arrive. Oversights, last-minute rushes, or lack of control are often the cause of surcharges, penalties, or incorrectly filed returns.

With Conta.es you can organize your tax calendar more clearly and approach each quarter with confidence. The application allows you to keep your income and expenses always up to date, review your data in advance, and reach each key deadline knowing exactly what you need to file.

This way:

• You avoid missed deadlines and late filings
• You reduce errors caused by rush or lack of information
• You gain visibility over your taxes before filing them
• You keep your accounting aligned with the requirements of the Tax Agency

Managing your tax obligations should not be a constant source of stress. If you are self-employed and want to approach the tax calendar with greater confidence and fewer worries, you can start using Conta.es and manage your activity with order and confidence starting today.