Close the quarter knowing where every figure comes from
Your invoices and expenses become entries, and the entries become the casillas of the modelo. Every number opens down to the document it came from.
- Modelos 303, 130, 390 and 349
- A server in Spain, inside the EU
- No advertising, no tracking
In development. Today Trimestria calculates and prepares the modelos, but it does not file them with the AEAT yet: you or your gestor file them.
Goes to modelo 303, casillas 28 and 29
Where are you standing right now?
People arrive here in the middle of something, not looking for a feature list.
I am starting out
Tell it what you do and it shows which modelos apply to you and when they fall due. If your case is outside what it covers, it says so before you start.
The deadline is close
The calendar gathers every obligation of the period with its deadline, and the draft of the modelo is worked out from what you have already recorded.
My client is in another country
An EU client brings ROI and modelo 349 with it; a client outside the EU brings neither. What applies follows from your operations, not from a box ticked at signup.
Every figure, with its reason
The calculation of a quarter is kept with the figures of that day and the version of the rules it was worked out under.
Open it two years later and you see the arithmetic as it was then, not as it would be today.
When something cannot be calculated with confidence, Trimestria does not guess: the period is left without a figure, and you are told why.
Behind every casilla
- The rule that calculates it, with its version
- The entries it adds up
- The document behind each entry
What it costs
Today Trimestria is free.
There is no decided price yet. When there is one, it will be published on this page.
What it does not do
It is not your asesor or your gestoría. It does not cover módulos or estimación objetiva, recargo de equivalencia, the foral territories, the Canaries, Ceuta or Melilla, employees, or the full Renta.
Questions
Does Trimestria file my returns?
Not yet. It prepares the calculation and the modelo; you or your gestor file it with the AEAT.
Who has checked the calculations?
They reproduce the examples the AEAT publishes, but no independent tax adviser has reviewed them yet. Check every result before you file it.
Where does my data live?
On a server in Spain, inside the European Union. You can download it as a file whenever you like, from Settings.