Tax on Documented Legal Acts: Guide 2026

June 30, 2026

The Documented Legal Acts Tax is one of the most significant factors when buying a home in Spain. Although not as well-known as VAT, its economic impact on real estate investments is enormous.

For your convenience, Domoblock will show you a modern, transparent, secure, and profitable method for investing in the real estate sector. This way, you won't have to worry about the inherent risks of traditional tax procedures.

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What is the Documented Legal Acts Tax?

We can define the Documented Legal Acts Tax as a levy on notarial and commercial registry acts. It's worth noting that it is regulated by Royal Legislative Decree 1/1993, making it an indirect tax. It's also important to clarify that it is linked to administrative acts.

This act was approved by the Revised Text of the Law on Transfer Tax and Documented Legal Acts. The aforementioned is important, as it demonstrates its scope in collecting taxes. Many legal experts have pointed out its highly transparent effectiveness.

The purpose of this tax is to tax the economic value represented by the formalization of certain legal acts, such as sales. Similarly, it is linked to company formation and the granting of mortgage loans by banking institutions.

Who must pay this tax when buying a home?

The complexity of taxpayer payment is due to reforms. Previously, the AJD in home sales was paid by the buyer. However, the Supreme Court ruling in 2018 established that for mortgage loans, the bank would be responsible for payment.

Despite the aforementioned case, in the purchase of a new home, the buyer will be subject to payment. However, when it comes to a second-hand property, Documented Legal Acts Tax does not apply; instead, a Property Transfer Tax applies.

As you can see, it all depends on the scenario, so there isn't one rule that applies generally. If your budget is tight, the best alternative is to opt for a second-hand home. But if you are a lender, you must be careful with the value of mortgage loans.

You might be interested in: home reservation contract.

Types of legal acts

There aren't many documents related to these taxes. Basically, they are divided into three groups which, in turn, belong to different sectors of the public administration. This versatility allows for faster and more efficient tax collection. See the available legal acts:

  • Notarial
  • Commercial
  • Administrative

Next, we will explain in depth the characteristics of these documents and their relationship with indirect taxes. We will also indicate an approximate amount based on the type of legal act, so you have a clear idea of the respective tax.

Point 1: Notarial documents

These are involved in the most common procedures, for example, minutes and any notarial testimony that has financial content. Additionally, property registrations, mortgage loans, and declarations of new constructions, such as public and private buildings, are also included.

Point 2: Commercial documents

All documents related to commercial transactions will be subject to the Documented Legal Acts Tax. Bills of exchange and promissory notes are the most frequent cases. In summary, these are the main transactions for businesses and corporate law.

Point 3: Administrative documents

These include administrative concessions, license transfers, or administrative awards. They are less common in the life of the average citizen, but are relevant in operations with public administration. The acquisition of street furniture is another example of these legal acts.

What is the tax amount?

It all depends on the autonomous community you belong to, but generally, it is between 0.5% and 1.5% of the total value of the document. It should be noted that mortgage loans also fall into this category; however, remember that the payer must be the credit grantor.

However, regions like Madrid have a higher percentage, with this being 0.75% for conventional operations. In contrast, in Catalonia it can reach up to 1.5%, so you should analyze your location when taking on the obligations of these transactions.

Now, is it smart to move to a place with a lower tax percentage? The answer is yes, but it all depends on your business.. Don't forget to consider other expenses, making it a highly complex decision. It's important to note that the calculation method makes all the difference.

How is it calculated?

It's not a complex task; in fact, it's simpler than you might imagine. To begin, you need to follow certain steps to calculate an amount. There aren't many, so don't worry. The points to consider are easy to understand. Still, here are the basics for calculation:

  • Determine the taxable base
  • Apply the tax rate
  • Consider bonuses and exemptions

You might have questions about how to perform these calculations. Given that this assessment can sometimes be difficult,we'll show you the steps you need to follow, so Documented Legal Acts Tax will never be a problem again.

Point 1: Determine the taxable base

Primarily, the taxable base will be determined by the value declared in the deed. For mortgages, it will be the capital amount,including all ordinary interest, late payment interest, and associated expenses. Of course, there are conditions that must be applied for its assessment.

Point 2: Apply the tax rate

After the taxable base for the applicable taxesis determined, the corresponding percentage is applied based on the autonomous community. Remember that the more prestigious the location, the higher the payment you'll have to make.

Point 3: consider bonuses and exemptions

Some autonomous communities offer a bonus. In fact, some cases include exemptions for low-income families. They may also apply to individuals with disabilities. Therefore, they will address the gaps that exist in most projects and initiatives.

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How and where is the AJD tax paid?

Documented Legal Acts Tax must be paid within a maximum of 30 business days after signing the document deeds. Next, we will explain the most important points of the complex tax world. We will also indicate where this tax is paid.

Point 1: online or in-person submission

You don't have to make the payment in person if it's inconvenient for you. You can now formalize the tax payment online. This convenience gives users greater flexibility when paying their taxes. Nevertheless, it is still possible to pay at the institution's offices.

Point 2: using form 600

Form 600 is the best tool for declaring and paying tax duties. Its content is straightforward, as it includes the transaction details, the tax base, and the applicable rate. For your convenience, the notary can assist you in drafting the document.

Point 3: payment and proof of receipt

After submitting the form and making the payment, you will receive a receipt to register the property acquired in the Property Registry. Important: if you do not pay the Documented Legal Acts Tax, it will not be enforceable against third parties.

What is the difference between AJD and ITP?

These are taxes that fall under the same regulatory framework but are applied differently. First, ITP (property transfer tax) is applied to pre-owned homes, while AJD is levied on new properties. Both taxes are never charged simultaneously; you pay one or the other.

Can AJD payments be claimed back?

These taxes can be claimed back if the value is higher than stipulated. If this is your situation, you should go to the institution's offices to request a refund. However, you must provide proof that the charge was undue.

What happens if AJD is not paid?

Penalties will be your main problem, as you will have to incur significant fines. Additionally, the act will not be recognized by third parties, meaning it will not be binding. Finally, the penalty for the fee will increase as evasion continues.

How does AJD affect real estate investment?

If the transaction has a high value, your budget may be affected. To avoid this, we recommend that you plan your investment strategy. The most advisable approach is to adopt the tokenized real estate investment model we propose at Domoblock.

Would you like to invest in real estate hassle-free?

The key to success is avoiding middlemen and growing your capital with an investment of just €200. Thanks to this process of real estate tokenization and the Blockchaintechnology, you will see your capital increase by 10% in less than 12 months.

Why choose Domoblock?

Firstly, the real estate investment made will be flexible and can be done from anywhere in the world. Furthermore, diversification offers high long-term profitability potential. Also, transactions are secure and will be backed by Blockchain.

Keep in mind that investments carry risks, so you might be afraid of losing your money. But don't worry, because Domoblock is here to help you. Leave this task to us; you just need to provide your funds for investment, and with our strategy, they will grow.

Profitability in the real estate world is a reality that can be achieved, but you must be properly advised. So if you have questions, don't hesitate to contact us; we will answer all your questions and help you invest your capital in the most appropriate way.

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Conclusion

The Tax on Documented Legal Acts are essential for buying a home in Spain. At Domoblock, we understand that this is a complex concept, but understanding its fundamentals will allow you to make the best financial decisions and avoid tax complications.

Sergio Navarro

Expert in blockchain, investments, and personal finance

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En curso

Villareal | Castellón

Josep Ramón Batalla, 54

DOMO-CS-2
Flipping building

Funded

100%

647.323,06 €

Target

647.323,06 €

Rentabilidad estimada:
12,64%
Duración estimada:
12 meses
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