Tax filing
We calculate your forms 303, 130, 349, 390 and 347 from your real activity. You approve the draft and a certified tax advisor files them with the AEAT. No missed deadlines, no last-minute panic.
Every form covered
Every form is generated from your real activity, not from estimates — without you having to know which figure goes in which box.
303
Quarterly VAT
Settlement of the VAT you charged clients minus the VAT you paid on your purchases. Calculated automatically from your invoices.
Deadline: April · July · October · January
130
Income-tax instalment
20% of your net income for the year to date, less previous payments. Paying as you go avoids a nasty surprise in June.
Deadline: April · July · October · January
349
Intra-EU transactions
Return covering supplies and purchases with EU companies. Quarterly or monthly depending on volume.
Deadline: Quarterly (monthly if you exceed €50,000 in the quarter)
390
Annual VAT summary
Year-end VAT summary pulling together all the year's 303 filings. Informational only, with nothing extra to pay.
Deadline: January (by the 30th)
347
Third-party transactions
Annual return listing the clients and suppliers you've done more than €3,005.06 of business with during the year.
Deadline: February (by the 28th/29th)
Do you have employees or pay rent?
We also handle forms 111 (employee withholdings) and 115 (rent withholdings) when they apply to you.
What sets us apart
We send a genuine alert before every tax deadline. If something is missing from your side, we ask for it with time to spare.
We never file without you having reviewed and approved the amount. You can see every figure, understand where it comes from and give the green light.
A certified tax advisor files it, using a digital signature authorised with the AEAT. You get the receipt straight away.
Your ledgers update automatically with every invoice. Ready if the Spanish Tax Agency ever asks for them.
It's this simple
You upload or sync your sales and purchases. The platform classifies them and builds the VAT and income-tax ledgers.
Before the deadline we generate your forms with the real amounts. You see every figure explained in plain language, no jargon.
Once you approve it, the certified tax advisor files with the AEAT and we send you the filing receipt.
Zero missed deadlines
It isn't an email on the 20th saying "remember you have to file". It's an early alert that tells you which form is coming, what information we still need from you and how many days are left to prepare it without rushing.
If we don't have everything we need a week before the deadline, we ask you directly. If something doesn't add up in the draft, the advisor spots it before filing, not after.
Form 303 is the quarterly VAT return: you declare the VAT you charged your clients (output VAT) and subtract the VAT you paid on your purchases (input VAT). If the result is positive you pay it; if it's negative you carry it forward to the next quarter. It's filed in April, July, October and January.
Form 130 is the income-tax instalment: a quarterly advance of 20% on your cumulative net income for the year. It's separate from VAT (form 303). When you file your annual income tax return, these payments are deducted from the total due.
You file form 349 if you invoice companies or professionals in other EU countries (intra-EU transactions). It doesn't apply if you only sell to European consumers or if all your transactions are in Spain. If your EU transactions exceed €50,000 in the quarter, it switches to monthly filing.
The Spanish Tax Agency applies surcharges for late filing: 1% to 15% depending on how late you are, plus interest. If they chase you before you file, the penalty is higher. That's why we send alerts well in advance and make sure we have all the information before the deadline.
No. Form 390 (the annual VAT summary) and form 347 (third-party transactions) are informational: you file them, but there's nothing extra to pay. The 390 pulls together what you've already settled through the year's 303 filings; the 347 declares significant transactions with clients and suppliers.
Your part is recording your sales invoices and expenses in the platform, and approving the draft before we file. We handle the rest: calculation, review and filing with the AEAT.
Official credentials
We're listed on the AEAT register of social collaborators (art. 92 of Spain's General Tax Act): we file your VAT and income-tax returns electronically on your behalf and work with the tax authority's specifications and updates first-hand, so you stay compliant without surprises.
Listed in the Register of Affiliated Companies of the Col·legi d'Economistes de Catalunya (no. SAS0949): the professional judgement behind your taxes comes from a professionally registered firm.
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