Billing, accounting and tax web tool for the self-employed


If you are self-employed, Contasimple covers all your billing, accounting and tax needs:
  • Record book of issued invoices: List of invoices that you have issued or generated.

  • Invoice record book received: List of invoices that your suppliers have issued or generated.

  • Record of expenses: List of simplified invoices or expenses, which are not invoices and therefore can only be deducted as an expense.

  • Investment property record book: List of invoices that your suppliers have issued to you, but only those that are depreciable assets.

Online accounting and billing for self-employed

Contasimple provides the self-employed with the process of calculating their quarterly and annual taxes. Among the taxes of the self-employed, we support:
  • VAT: Quarterly model 303 and annual model 390.
  • IRPF: Quarterly model 130 and annual model 100.
  • Withholdings invoices received: Quarterly model 111 and annual model 190.
  • Rentals whithholdings: Quarterly model 115 and annual model 180.
  • Operations with third parties: Annual model 347.
  • Intra-communitarian operations: 349 form.


Cegid is one of the main players in business management solutions in the cloud for Finance (ERP, treasury, taxes), Human Resources (Payroll, Talent management, Time management), Accounting, Retail, Entrepreneurs and Small Businesses.

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Contasimple is a product of Grupo Primavera, a Cegid Company    Calle Labastida 10, 28034 Madrid, CIF B67119594, T 932 933 806
Contasimple S.L.U. is a company registered in the Mercantile Registry of Barcelona in volume 46203, folio 76, sheet B-512849, inscription 1.