Create one invoice (same validation as the web form)

EMITIDA = the user issued it (income). RECIBIDA = the user received it (expense).

YYYY-MM-DD

YYYY-MM-DD when it differs from fechaFactura

The other party (client for EMITIDA, supplier for RECIBIDA)

NIF/CIF/NIE or EU VAT number, as printed

ISO 3166-1 alpha-2, e.g. ES, DE, US

Taxable base in EUR (sum of all bases if several rates; then tipoIVA is the main rate)

IVA rate in percent: 21, 10, 4 or 0

Printed invoice VAT amount in EUR; keep printed zero for reverse charge

Applicable Spanish self-assessment rate, separately confirmed from the printed invoice rate. Never infer from printed 0%.

Basis for the applicable rate, e.g. confirmed tax classification and AEAT rule. Missing basis requires review.

Independently confirmed VAT deduction percentage based on business use, valid evidence and applicable deduction rules. 0 means no deduction; null means unresolved. Independent of income-tax esDeducible.

Server result: base * self-assessment rate / 100, rounded per invoice to EUR cents; never added to the printed invoice total

IRPF withholding rate in percent, if the invoice shows one (e.g. 15 or 7)

IRPF withholding amount in EUR

One line: what was sold or bought

Total to pay in EUR (base + IVA - retención + suplidos + recargo)

Expense category for RECIBIDA (e.g. SOFTWARE, ALQUILER, SUMINISTROS, MATERIAL, SERVICIOS_PROFESIONALES, TRANSPORTE, OTROS)

Your own confidence 0..1 that every amount is read correctly

Local file name, for the user's report only (never stored as a document)