Get started
Self-employed registration and flat rate
We register you with the Tax Agency and Social Security and apply for your flat rate.
Switching accountants
Move to Abaq whenever you like. We talk to your previous accountant.
Day to day
Bookkeeping and taxes
Your invoices, recorded straight away. Your taxes, filed on time.
Selling to the EU and abroad
We handle your ROI registration, form 349 and the One-Stop Shop.
If the Tax Agency writes to you
We explain what the Tax Agency is asking for and help you reply.
Also
Income tax return
We prepare and file your income tax return.
Your PRO Accountant Team
Unlimited questions by chat or email, included in your fee.
FacturaDirecta for free
Invoice for free and your invoices reach Abaq on their own.
Learn
Blog
Articles for your day-to-day as a self-employed worker (in Spanish).
Everything you need to know to be a PRO self-employed worker (in Spanish).
Videos
Your taxes, explained in short videos.
Tools
Calculators
Work out your Social Security contribution and your income tax (in Spanish).
Tax forms
What each Tax Agency form is and when it is filed (in Spanish).
Abaq
Help centre
Tips and tutorials on day-to-day life with Abaq (in Spanish).
Refer a friend
Invite a friend: one month free for both of you.