Zythos Business

Tax & accounting advisors · Madrid

Your taxes filed on time. Your books balanced to the cent.

Tax and accounting advisors in Madrid for the self-employed, SMEs and foreigners doing business in Spain. We watch every tax deadline so you can focus on your business.

Tell us about your case View services
+35 businesses trust Zythos with their accounting
6 languages spoken
4 quarters a year, every return filed on time
To the cent that’s how we balance your books

Services

Everything your business needs before the Tax Agency, Social Security and the Companies Registry.

Accounting

Your books kept up to date and balanced to the cent, ready for any inspection.

Taxes & AEAT returns

VAT, withholdings, prepayments and corporate tax: every return filed on time.

Payroll

Payslips, social security and contracts handled month after month, no surprises.

Homeowners’ associations

Clear, up-to-date accounts for your community, with budgets and levies made simple.

Foreigners in Spain

English-speaking service to set up and run your business in Spain.

Annual accounts & Companies Registry

Year-end closing, annual accounts and filing at the Registry — all taken care of.

Why Zythos

We are not just another advisory firm.

We combine decades of craft with an in-house system that watches every deadline, balances every account and alerts us before the tax office does.

View services →
  • Every return filed on time — direct debits included
  • Books balanced to the cent, not “more or less”
  • Service in 6 languages, specialists in foreign clients
  • Direct contact: you talk to the person who keeps your books

Latest News

View all →

Shall we talk about your business?

We’ll tell you exactly what you need to file and how we’ll get it sorted.

Write to us