
Tax Attorney in Spain: Legal Defense Against Hacienda
If you are dealing with a tax notice, audit, penalty, appeal or another dispute with the Spanish Tax Agency, a tax attorney in Spain can help protect your rights and define the appropriate legal strategy.
At SAEZ.LAW we focus on legal-tax defense in matters involving Hacienda, including inspections, administrative appeals, penalties, liability claims and complex tax disputes.

When Should You Hire a Tax Attorney in Spain?
Not every tax issue requires litigation. But once Hacienda has opened a procedure, imposed a penalty or questioned your tax position, legal strategy can become decisive. A Spanish tax attorney can review the file, identify procedural and substantive issues and assess the legal position before you take a step that may affect your defense.
- You have received a notice, requerimiento or formal communication from Hacienda.
- You are facing a tax audit, inspection or verification procedure.
- You want to challenge a tax assessment or penalty.
- You need to decide whether an administrative appeal or economic-administrative claim is worthwhile.
- Hacienda is attempting to extend tax liability to you personally.
- Your case involves international income, non-residency or cross-border transactions and a dispute has arisen.
How Our Tax Attorneys Can Help
Tax Audits and Inspections
We review the procedure, the documents requested by Hacienda and the tax position under scrutiny. We help prepare responses and define a strategy designed to protect your rights throughout the inspection.
Penalties and Assessments
If you receive a penalty or additional assessment, we examine the legal basis, evidence, deadlines and possible grounds for challenge before recommending the next step.
Appeals and Tax Litigation
Where there is a defensible legal position, we can assist with allegations, administrative appeals, economic-administrative claims and, when appropriate, court proceedings.
Personal Liability for Tax Debts
When the Spanish tax authorities seek to make a director, shareholder or third party personally responsible for another taxpayer’s debt, the legal and factual basis of that liability should be reviewed carefully.
Second Opinion on a Tax Dispute
If you already have an accountant, tax professional or previous legal opinion, we can provide an independent legal-tax assessment focused on the dispute, risks and available procedural options.
International Tax Disputes
We assist with disputes involving Spanish taxation where international elements are relevant, including residency questions, foreign income, assets or transactions and the application of tax treaties.
Already Have a Letter or Notice from Hacienda?
Do not wait until the response deadline is close. A tax attorney can review the notice, the relevant documents and the available options before you decide how to respond.
Tax Attorney vs. Accountant in Spain
An accountant and a tax attorney can both be important, but their roles are different. Accountants usually focus on bookkeeping, tax returns, calculations and ongoing compliance. A tax attorney focuses on legal analysis, procedural rights, disputes with Hacienda, appeals and legal representation.
In many cases they work together. Your accountant may provide the financial and filing history, while your lawyer analyses the legal position and manages the defense strategy.
What to Expect from a Consultation
- Review of the essential documents you send us.
- Direct discussion of your tax problem and objectives.
- Assessment of the main legal risks and available options.
- Guidance on strategy, amounts and next steps.
- If appropriate, clarification of the scope and fees for a possible defense.
The consultation is designed to assess the legal-tax position, identify the main risks and clarify the available procedural options before you decide whether and how to move forward with the case.
How We Work on Tax Cases in Spain
1. We Understand the Case
You explain what has happened and send the key documents, especially any notice, assessment, penalty or communication from Hacienda.
2. We Assess Risks and Options
We analyse the procedure, facts, evidence, deadlines and legal arguments to identify the realistic options available.
3. We Define the Next Step
Depending on the case, the next step may be a consultation, allegations, an appeal, an economic-administrative claim or a broader defense strategy.
Tax Attorney in Spain: Frequently Asked Questions
What does a tax attorney in Spain do?
A tax attorney handles the legal aspects of Spanish taxation and represents clients in disputes with the tax authorities. This can include audits, assessments, penalties, liability procedures, administrative appeals and tax litigation.
When should I contact a Spanish tax attorney?
Ideally, as soon as you receive a formal notice from Hacienda or become aware of a significant tax dispute. Early review gives your lawyer more time to analyse deadlines, documents and strategy before you respond.
Can a tax attorney help with a Hacienda audit?
Yes. A tax attorney can review what Hacienda is requesting, help prepare the legal response, assess the evidence and represent your interests throughout an inspection or verification procedure.
Can a tax lawyer challenge a penalty in Spain?
Potentially, yes. Whether a penalty should be challenged depends on the facts, procedure, evidence and legal grounds. The first step is to review the decision and determine whether there is a defensible basis for an appeal or claim.
Do I need a tax attorney if I already have an accountant?
You may need both. An accountant normally handles filings, calculations and compliance, while a tax attorney focuses on legal rights, disputes, appeals and defense strategy. In complex cases, the two roles can complement each other.
Can I work with SAEZ.LAW if I am outside Spain?
If your matter concerns Spanish taxation or a procedure before Hacienda, we can first assess the case and determine the appropriate legal route. Consultations can be coordinated remotely when suitable for the matter.
Speak with a Tax Attorney About Your Case
If you have received a notice from Hacienda or need a deeper legal-tax assessment, you can book a consultation and send us the essential documents so we can analyse your situation before advising you on the next step.
