File Your Income Tax Return in Spain
(Modelo 100)
Expert help for residents and expats filing their Spanish tax return.
Tell us about your situation and we will review your case and send a fixed quote before starting work.
Need to file Modelo 100 in Spain? We’ll handle it.
If you’re living in Spain or earning income here, filing your annual income tax return (Modelo 100) is a legal requirement. At Baleario, we make the process easy—no jargon, no stress, just expert help from English-speaking tax professionals.
We help with:
- Modelo 100 filing – Complete, compliant income tax return submission to Agencia Tributaria.
- Resident & non-resident returns – Know your obligations and avoid costly mistakes.
- Double tax relief – Ensure you’re not taxed twice on foreign income.
- Digital certificates & Cl@ve registration – We can help you get set up to file online.
- Rental income & investment reporting – Declare your income correctly and legally.
- Deductions & allowances – Maximise your return and reduce your tax bill.
Contact us today
Client testimonials
How it works: the Modelo 100 process
Filing your Spanish income tax return doesn’t have to be complicated. Our process is designed to be simple, clear, and tailored to your personal situation.
Get in touch
Contact us and we will send you our personal income tax questionnaire so we can understand your situation.
Complete the questionnaire
Fill in the questionnaire with details about your residency status, income sources, assets and any relevant tax information.
Case review & quote
Our team reviews your responses and assesses the complexity of your case. We then provide a fixed quote based on your individual circumstances.
Preparation & filing
Once you approve the quote, we prepare your Modelo 100 and submit it to the Agencia Tributaria using your digital certificate or Cl@ve access.
Confirmation & support
You receive confirmation of submission and we remain available if the tax office requests clarification or if you have follow-up questions.
Why choose Baleario?
Trusted tax experts
We specialise in Spanish tax for expats and residents, with a deep understanding of Modelo 100.
Clear, fixed pricing
No hidden costs. Just clear, upfront fees based on your situation.
English-speaking support
We guide you through Spain’s tax system in plain English.
Quick and compliant
We ensure your return is submitted on time and in line with Spanish tax law.
Double tax expertise
We help you avoid being taxed twice on UK or foreign income.
Your trusted partner for Modelo 100 in Spain
From pensions to property income, our team ensures your Spanish income tax return is correct, compliant, and stress-free.
- Specialist expat support – We know the challenges of filing as a foreign resident.
- Tax-saving advice – Make sure you claim the deductions you’re entitled to.
- Fully compliant – We make sure your return meets all legal requirements.
