Send Certified Invoices with Legal Validity

Instant notification, delivery proof and legal certificate. The safest way to send invoices.

How It Works Start Now

Certified invoice sending with legal validity

Why Use Certified Electronic Mail for Invoices?

Discover the advantages of our invoice sending system

Legal Validity

Certified invoices have legal validity as proof of notification and delivery.

Instant Delivery

Instant notification with read confirmation and real-time delivery.

Higher Effectiveness

Significantly increases payment chances with legal notifications.

How to Send Certified Invoices

Simple and effective process in 4 steps

Upload Your Invoice

Upload your invoice in PDF format with all necessary data.

Send Certified Email

We send your invoice as a certified email with legal validity.

Real-Time Tracking

Receive delivery, read and recipient response notifications.

Get Your Certificate

Download the legal certificate as proof of notification and delivery.

Use Cases for Invoice Sending

Ideal for different types of billing

Businesses and Freelancers

Send commercial invoices, professional services and tax documents.

Individuals

Send personal service invoices and private documents.

Frequently Asked Questions

We answer your questions about certified invoice sending

Yes, invoices sent by certified email have legal validity as proof of notification and delivery, recognized by Spanish and European courts.

You can send invoices in PDF format with all necessary tax data. The system accepts files up to 10MB.

Delivery is instant. You will receive delivery and read confirmation in real-time, as well as notifications if the recipient does not open the email.

Ready to Send Your Certified Invoice?

Start now and send invoices with legal validity and delivery proof.

Start