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Your tool for invoicing, accounting and business management

Whether you are self-employed or company, create your invoices in just 10 seconds, manage your accounting and see your business status in real time.


Web program specially designed for freelancers and companies.

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Time tracking

Keep track of your employee's hours.

More information

Control Panel

Create new invoice


Create your invoices in 10 seconds.
                        Use our powerful and professional templates that you can customize with your logo, corporate colors and more.
                         Complement your processes with quotes and delivery notes.

Take control

Control panel.
Visual graphics about your state.
Very clear tables with key data.

Control Panel


Manage your expenses.
Take the official record books.
Have a global vision of your business.



We are up to date with the most important integrations to simplify your management and that you can focus on what matters most, your business.

Electronic signtature has never been easier

Electronically sign your invoices, budgets and delivery notes to give more confidence to your customers and differentiate yourself from the competition.

Electronic signtature has never been easier

IZettle Bluetooth card reader

Accept card payments

Cash your customers through the iZettle credit card readers and synchronize your sales automatically with Contasimple.

Contasimple App. Your invoicing app

Manage your business wherever you are!

Download the Contasimple App on Google Play Download the App Contasimple in Itunes     More information
Mobile app for invoicing and accounting Mobile app CRM customer and contact management

Who is it for?


Complete 100% of your invoicing, accounting and tax processes.
Focus on your business and save up to 70% of your management costs.

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Streamline your processes, increase your productivity and have more control of your business wherever you are.

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Tax Accountants

Reduce your expenses of introduction of invoices, manage your clients, offer new services of self-management ... and all this under your own brand!

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What differentiates us from the competition?

What differentiates us from the competition?

We have a team of professional managers that reviews all the processes of the platform.

We are always up to date with the law, including the latest modifications on the platform.

Your data is yours, always accessible and available in the safest way possible.

We are already more than 210.000 users and growing.

Is free?

Enjoy the free Basic plan for life.
If you need more features, you can update your plan to a more complete plan instantly.

Discover our plans

Free online accounting software

+ 10 millions
invoices generated

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 clients.

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It generates, in just 10 seconds, complete and clear budgets. Create a budget invoice in just one click.

Delivery notes

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


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

Electronic invoice

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

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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.

Control of expenses

Never tracking and controlling expenses had been so easy.

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Customer Management

Manage your customers and suppliers by getting the most out of them.

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Virtual disk

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

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

Dropbox & Google Drive

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

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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.


Manage your individual notes.


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


Generate receipts and bank remittances to charge your customers.

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Time tracking

Keep track of your employee's hours.

Learn more

And much more!

Discover it for free
and without commitment

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Contasimple - The invoicing, accounting and taxes application on the cloud.


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