Certified digitization of invoices

Digitalization software certified by the Spanish Tax Agency (AEAT) and the Provincial Treasuries

Photograph your invoices with the Contasimple Android and iOS mobile app and obtain a certified digital invoice valid as an official document from the Spanish Tax Agency and also from the Provincial Councils of the Basque Country and Navarra.

A digital invoice approved with Contasimple has the same value as a paper one and for throwing away the paper ticket / invoice to work with the digital version that never deteriorates.

Advantages of digitizing invoices and tickets

Photograph your tickets

Greater security in the preservation of documents

The quality of digital documents does not deteriorate, so you no longer have to worry about tickets with ink that fades over time.

Better organization in automatic virtual folders

All the documents that you generate from Contasimple are automatically saved in the folder generated by the program by type of document. You can also create all the folders and subfolders you want to organize your documents as you wish. This way it is easy to find your documents quickly.

Your certified photos are stored in the cloud
Space saving and environmental management

Space saving and environmental management

Digital files do not take up space like physical paper, and they also help you comply with the ISO 14001 environmental management standard by recycling the paper after its digital certification.

How do I digitize my invoice

1. Download the app. It's free

If you don't have it yet, download the Contasimple's free app in its Android or iOS version on your mobile.

2. Post the invoice or expense

Register the invoice received from your supplier or expense in Contasimple. This step can be done both from the app and from our web program.

Post the invoice or expense
Photograph the document on paper

3. Photograph the document on paper

Select the invoice or expense created from the app and display the options menu. Click on the AEAT certified photo option and photograph the paper document framing it within the guides that appear on the screen.

4. Your certified PDF document valid for the AEAT

When you click on finish, the certified digitization process will start. You can find on your virtual hard drive, attached to the invoice or selected expense, the original photographs and the certified PDF document. You can access the files both from the app and from the web.

Your certified PDF document valid for the AEAT

More information on how to digitize invoices with Contasimple in this tutorial.

Try it Free

Contasimple is the online invoicing, accounting and tax program that allows you to save money and time so that you can grow your business.

Sign up now and you will have 30 days free of the Ultimate Plan, the most complete.
Then you can switch to the free Basic Plan for life.

Try it, It's free!

Why do you need Contasimple?

Discover what we can do for you.


Create your invoices in 10 seconds, personalize them with your logo and send them to your costumers.

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Create your budgets in 10 seconds. Convert it on an invoice in just 1 click.

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Delivery notes

Generate customized, clear and elegant delivery notes. Impress your customers!

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Everything you need to comply with the law and understand your business.

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Electronic signature

Upload your certificate and sign any kind of document, invoice, delivery note or estimate.

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Virtual disk

Upload your private documents and link them with your invoices or delivery notes.

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Control of expenses

Tracking and controlling expenses had never been so easy.

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Customer Management

Manage your customers and get the most out of them.

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Stock control

Manage your warehouse and control your stock.

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Time tracking

Keep track of your employee's worked hours.

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Generate receipts and bank remittances to charge your customers.

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Dropbox & Google Drive

We integrate with Dropbox and Google Drive. Each created invoice will be automatically uploaded to your account.

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With our module of reports, in a single click you can obtain the most relevant data of the state of your business.

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Global vision

With our Dashboard you will have a global vision to support the decision making of your business.
Get to know your internal processes thoroughly.

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Export in PDF and Excel all your invoices, movements, accounts, clients, ...

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Manage your individual notes.


Ask us your questions, we will be happy to help you.

And much more!


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    C /Marina 16-18, planta 8, Torre Mapfre, 08005 Barcelona, 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.