The declaración trimestral is the set of taxes a freelancer files every three months: usually the modelo 303 (IVA) and, where applicable, the 130 (IRPF), the 111 or the 115. The windows are 1–20 April, July and October, and 1–30 January.
The declaración trimestral isn't a single tax, but your date with the tax office every three months. Depending on your case, you file the modelo 303 for IVA and, if it applies, the modelo 130 for IRPF, the 111 or the 115.
The windows are the same for all: 1–20 April (Q1), 1–20 July (Q2), 1–20 October (Q3) and 1–30 January (Q4). If you pay by direct debit, they close a few days earlier.
The quarter is scary when it lands all at once. If you set tax aside the day you're paid for each invoice, reaching the quarterly return is just confirming numbers you'd already put away.
Most commonly the modelo 303 (IVA) and, where applicable, the 130 (IRPF). If you have employees or pay invoices with retención you file the 111, and if you rent premises, the 115. Not every freelancer files all of them.
Cece takes care of what weighs on your day-to-day (projects, payments, proposals, tax calculations) and surfaces the numbers that matter, so they stop weighing on you and you can get back to what counts.
