for Freelancers
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Do these problems sound familiar?
Being self-employed is hard enough without being a tax expert
Risk of tax penalties
Errors in VAT declarations (form 303), income tax (form 130), or annual declaration can generate surcharges of 5-20% plus late payment interest. The complexity of tax obligations for freelancers is one of the main causes of avoidable penalties.
Confusing tax obligations
Quarterly VAT, annual income tax, forms 303, 130, 390... What do I need to file and when?
Lack of time
Between managing the business and getting clients, there's barely time for tax bureaucracy.
Deductible expenses
Can I deduct this? And that? No one clearly explains what expenses are deductible.
Scattered documentation
Invoices, contracts, expenses... Everything in different folders, emails and papers. A mess.
Your personal tax assistant
Clear answers to your tax questions, no waiting and no per-query charges
Consult the BOE for free
Ask about any tax or labor obligation. Answers in seconds with legal references.
Clear deductions
Check what expenses are deductible for your activity. No jargon, in human language.
Tax calendar
Never miss a declaration again. Check deadlines and obligations for your tax regime.
Total privacy
Upload your invoices and documents. Everything processed locally, never leaves your computer.
What can you do?
From tax queries to document management
Immediate tax queries
When do I need to file form 303? What expenses are deductible for my activity? Can I invoice without VAT to a European client?
- Declaration deadline queries
- Deductible expenses by activity
- Obligations by tax regime
- Invoicing regulations
Invoice and expense analysis
Upload your expense invoices and ask if they're deductible. Organize your tax documents for annual declaration.
- Deduction verification
- Expense classification
- Income tax preparation
- Input VAT control
Tax optimization
Consult legal strategies to reduce your tax burden. Depreciation, special deductions, special regimes...
- Module regime vs direct estimation
- Investment deductions
- Asset depreciation
- Annual tax planning
Contract management
Index contracts with clients and suppliers. Check conditions, payment terms and obligations.
- Clause search
- Billing deadlines
- Payment conditions
- Contractual obligations
Designed for busy freelancers
Free BOE expert
Unlimited free access to BOE Expert. Consult all updated Spanish legislation.
Guaranteed privacy
Your tax documents never leave your computer. 100% local processing.
Instant answers
No waiting. Ask and get answers in seconds with regulatory references.
No technical jargon
Clear explanations, no incomprehensible legal language. Designed for non-experts.
Save on advisory
Resolve basic questions yourself. Consult your advisor only for complex matters.
Always updated
Automatically updated legislation. Always consult current regulations.
How it works
Access BOE Expert for free
No registration, make up to 2 daily queries to BOE. Create account for 20 free queries/day.
Ask in natural language
No technical jargon. Ask as you would talk to your advisor.
Get verified answers
Each answer includes references to BOE and applicable regulations.
Upload documents (optional)
With Professional plan, process invoices and documents privately.
"I used to call my accountant for every tax question. With DOCU.expert I resolve basic queries instantly and only bother my advisor for complex things. I save time and money every month."
Carlos Ruiz
Freelancer - Freelance Designer
Frequently asked questions
Is the BOE Expert really free?
Yes, completely free forever. You can make up to 2 daily queries to BOE Expert at no cost. If you need unlimited queries, the Hobbyist plan costs only €9/month (now €4.50 with Christmas offer).
Can I upload my invoices and documents securely?
Yes. If you use the Professional plan or higher, the software installs on your computer and all processing is local. Your documents never leave your machine. It's technically impossible for us to access them.
Do I need technical knowledge?
No. It's designed for freelancers without technical knowledge. Ask in normal language and get clear answers, no legal jargon.
Can it replace my tax advisor?
No. DOCU.expert helps with basic queries and document organization, but doesn't replace professional advice for complex situations. It's a complement that saves you time and money on simple queries.
Privacy and Security
Your tax data is protected with the highest standards
100% local processing
With the desktop app, all your documents are processed on your computer. Never sent to external servers.
GDPR compliance
We strictly comply with the EU General Data Protection Regulation.
End-to-end encryption
All communications are encrypted. Your tax data is protected at all times.
Start resolving your tax questions today
Free access to BOE Expert. No credit card required.