Spain's 2026 Tax Return: Key Dates, Expert Help, and What's Changing This Year

The 2026 Tax Season Is Almost Here

Spain's annual income tax return campaign — covering earnings made during 2025 — is approaching fast. The official filing window opens on April 8, 2026 and runs through to June 30, 2026, giving taxpayers just under three months to submit their declarations.

But there is important news for anyone with questions: ahead of the official launch, a panel of expert tax advisors will be available to answer queries from April 7 — one day before the campaign begins — through a collaboration with the AEDAF (Asociación Española de Asesores Fiscales, Spain's Association of Tax Advisors).

Whether you are filing for the first time, dealing with a more complex situation such as a property sale or cryptocurrency gains, or simply wondering whether you even need to file, here is a full guide to what you need to know.

All the Key Dates at a Glance

Date	What Happens
March 19, 2026	Tax data available online — access your draft return and verify your information
April 7, 2026	Expert advisors (AEDAF) begin answering taxpayer questions
April 8, 2026	Official campaign opens — online filing begins
May 6, 2026	Telephone assistance available from Agencia Tributaria
June 1, 2026	In-person appointments at tax offices open (advance booking required)
June 25, 2026	Deadline for arranging direct debit payments
June 30, 2026	Final deadline to submit tax return online
November 5, 2026	Deadline for second instalment payments (for those paying in two parts)

Step One: Check Your Tax Data Now

From March 19, 2026, the Spanish Tax Agency (Agencia Tributaria) makes your personal tax data available through its website and app. This is your pre-populated draft return — and reviewing it carefully before submitting is one of the most important things you can do.

The data available for review includes:

• Income and salary information — figures reported by your employer(s)
• Withholdings — tax already deducted at source during the year
• Address information — make sure your registered address is correct
• Bank account details — the account any refund will be paid into
• Donations to NGOs — charitable contributions that may qualify for deductions

Crucially, the pre-populated draft is a starting point, not a finished return. The Tax Agency fills in what it knows — but it does not know everything. Income from freelance work, rental properties, foreign sources, investments, or asset sales may not appear automatically and must be added manually. Submitting the draft without checking can result in underpaying tax (and later penalties) or missing out on legitimate deductions.

Expert Help: Get Your Questions Answered Before You File

In a genuinely useful development this year, expert tax advisors from the AEDAF will be available to respond to taxpayer questions from April 7 — the day before the official campaign opens.

This initiative is designed to help people prepare before they sit down to file, rather than struggling through the process alone. The experts will be addressing a range of common queries, including:

• Property sales — how to declare capital gains from selling a home, including the primary residence exemption rules
• Cryptocurrency gains — how to report profits (and losses) from Bitcoin, Ethereum, and other digital assets
• Income from resale platforms — whether sales on Wallapop, Vinted, or similar apps need to be declared and at what thresholds
• Pensioners and lower earners — who is actually required to file, and under what circumstances you may be exempt

If your situation involves any of these areas, taking advantage of this expert access before April 8 is strongly recommended.

What's Changing in 2026

This year's campaign is not identical to previous years. The most notable change is the removal of certain deductions linked to the so-called "social shield" — a package of temporary measures introduced in response to the cost-of-living pressures of recent years.

Some of those temporary deductions and relief measures have now been wound down, meaning that certain taxpayers may find their bill higher than expected — or their refund lower — compared to what they received last year. It is worth reviewing your situation carefully rather than assuming your return will look the same as before.

If you benefited from energy-related deductions, rental assistance measures, or other cost-of-living reliefs in your 2025 return, check specifically whether those measures still apply for 2025 income.

Who Has to File?

Not everyone in Spain is required to submit a tax return, but the thresholds are worth knowing:

• If you earned more than €22,000 gross from a single employer, you must file
• If you earned more than €15,876 from multiple employers, from unemployment benefits, or from other sources, you must file
• Even if you fall below these thresholds, filing may still be worth doing if you are entitled to a refund — for example, if too much tax was withheld during the year

Foreign residents and expats living in Spain who meet these thresholds are required to file their Spanish IRPF return in the same way as Spanish nationals. If you have income from outside Spain — rental income from a UK property, for example, or a foreign pension — this also needs to be declared, and the rules can be complex. This is an area where professional advice is particularly valuable.

Navigating Crypto, Property Sales, and Platform Income

Cryptocurrency

If you sold, exchanged, or otherwise disposed of cryptocurrency during 2025, any gains are taxable. Spain's Tax Agency has been increasingly focused on crypto compliance, and the information-sharing requirements for exchanges mean that unreported gains are becoming harder to overlook. Losses can also be offset against gains in some circumstances — another reason to get proper advice.

Property Sales

Selling a property in Spain generates a capital gain that must be declared. The primary residence exemption can apply if you sold your main home and reinvested the proceeds in another main residence — but the rules are specific and time-limited. The over-65 exemption for main residence sales also remains in place.

Wallapop, Vinted, and Resale Platforms

Sales of second-hand goods on consumer platforms are increasingly on the Tax Agency's radar. In most cases, occasional sales of personal items at a loss or break-even price do not need to be declared — but regular sales, or any sale where you make a gain above the original purchase price, may need to be reported. If in doubt, ask the AEDAF experts.

How to File

There are three main ways to submit your Spanish tax return:

1. Online — through the Agencia Tributaria website (sede.agenciatributaria.gob.es) or app, from April 8. This is the fastest and most straightforward option for most taxpayers.
2. By telephone — from May 6, you can call the Tax Agency to file your return with an agent over the phone. You will need to book an appointment.
3. In person — from June 1, face-to-face appointments at local tax offices are available. These must be booked in advance and tend to fill up quickly, so do not leave this until the last week of June.

Final Tips Before You File

• Access your draft data from March 19 and check every figure carefully before submitting
• Use the AEDAF expert service from April 7 if you have any doubts about your situation
• Do not simply confirm the draft without reviewing it — missing income or deductions can lead to penalties or missed refunds
• Check for changes from last year, particularly around deductions that may have been removed
• If your situation is complex — foreign income, property sales, crypto, self-employment — consider using a gestor or tax advisor to prepare your return
• Do not miss June 30 — late filing carries automatic penalties that increase the longer you wait

This article is for informational purposes only and does not constitute tax or financial advice. For personalised guidance, consult a qualified tax adviser or gestor in Spain.