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How much VAT and income tax you owe this quarter (and how to file it yourself)

The quarter ends and the same question shows up: how much will you have to pay. Your issued invoices are in one place, your expenses in another, and the VAT you owe is a mystery until someone adds it all up. Usually you find out late, with the payment deadline already on top of you and no room to react.

It doesn't have to work like that. You can know how much VAT and income tax you owe while the quarter is still running, and prepare the forms you need to file yourself.

Know what you owe before the quarter ends​

Frihet's fiscal dashboard estimates your VAT and income tax for the quarter from your issued invoices and recorded expenses. It's not a calculation you run at the end: it updates with every invoice you send and every expense you log.

That surfaces three things that normally arrive too late:

  • How much you'll pay in VAT (Form 303) and income tax (Form 130), estimated on what you've done so far this quarter.
  • A cash-flow forecast, so the payment date doesn't catch you short on liquidity.
  • Overdue alerts, so you don't discover a missed deadline when it's already too late to fix.

"How much VAT do I owe this quarter" stops being a last-minute surprise and becomes a number you can check any day.

What to review before you close​

Before you file anything, it's worth manually reviewing the loose ends that tend to slip through: uncategorized expenses, invoices still in draft, receipts not yet attached. Instead of finding a gap while you're already filing, you fix it first. Fewer surprises, fewer corrections.

The forms, calculated from your data​

Frihet calculates the quarterly Spanish tax forms from your invoices and expenses, with the official boxes and their breakdown:

  • Form 303 — VAT return (output VAT minus deductible input VAT).
  • Form 130 — quarterly income-tax prepayment under direct assessment.
  • Form 111 — withholdings applied to professionals and payroll.
  • Form 115 — withholdings on commercial rent.

Each form is calculated, previewed and exported. You see the result box by box before you accept anything: it's a draft you review, not a black box.

File it yourself, without an accountant​

When the numbers add up, you export in two formats:

  • PDF to review and keep the draft.
  • AEAT-format TXT to import directly into the tax agency's electronic office (Sede Electrónica).

You handle the final filing at the AEAT with your digital certificate or Cl@ve. Frihet gives you the exact number and the file ready to upload; you confirm and file. No copying figures by hand, no depending on a third party to learn what is already yours.

Frihet prepares and calculates these forms; it does not submit them to the tax agency for you. You stay in control of the filing.

Ask in plain language​

If you'd rather ask than navigate, the AI Copilot answers from your real data. Type "how much VAT do I owe this quarter" or "how's my income tax going" and you get the figure right away, without opening a report. Plans include monthly AI messages (30 on Free, 100 on Pro, 500 on Premium), more than enough for your tax questions.

If you run several businesses or work with data at volume, the same numbers are available through the API and the MCP server (@frihet/mcp-server, 157 tools), so you can wire them into your own workflow.

Example: a real quarter​

Marta is a self-employed professional under direct assessment, with her tax address on the Spanish mainland.

During the quarter she invoiced €15,000 plus 21% VAT (€3,150 of output VAT). She logged €4,000 of deductible expenses with €840 of input VAT. Frihet kept estimating the result on the fiscal dashboard as invoices and expenses came in, so by mid-quarter she already knew roughly where the payment would land.

At close, Form 303 came out to pay: 3,150 − 840 = €2,310. Form 130 (income tax) was calculated by Frihet on her accumulated net profit, less earlier withholdings and prepayments. Marta reviewed both boxes, exported the AEAT TXT, imported it into the electronic office and filed it herself. No accountant, no manual transfers, and time to adjust her cash before the charge hit.

Based in the Canary Islands?​

If your tax address is in the Canary Islands, VAT doesn't apply — IGIC does. Frihet covers the Canary forms: M415 (quarterly return), M425 (annual summary) and M418 (imports). The flow is the same: estimate during the quarter, calculate, preview and export.

Keep reading​

  • Form 303 — VAT: how Frihet calculates every box of your VAT return.
  • Form 130 — income tax: the quarterly income-tax prepayment under direct assessment, step by step.
  • Taxes in Frihet: set up VAT, IGIC, income-tax withholding and equivalence surcharge on your invoices.

Start today​

Create a free account at app.frihet.io and watch your VAT and income-tax estimate for the running quarter. When the deadline comes, you'll have the number and the file ready to file yourself.