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Free architect and engineer invoicing and billing software

Create free invoices to bill your architectural and engineering services in just 10 seconds. Manage your accounting. Time tracking tool to help you calculate your billable hours.

Manage your architectural and engineering services easily with an online software.

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Create your invoices for architects and engineers in just 10 seconds.

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Manage your accounting easily.

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Time tracker to calculate your billable hours.

También para despachos de arquitectos, ingenieros y peritos constituidos como pequeña empresa.

Facturación, presupuestos, contabilidad e impuestos para arquitectos, ingenieros y peritos

Manage your architectural business wherever you are.

Choose an online software that allows you to manage your architectural and engineering services wherever you are. From your computer in your office and also from your Smartphone or Tablet. All you need to just focus on what really matters: your customers and your engineering services.

Invoices

Create your invoices for architectural and engineering services in just 10 seconds. Customize them with your logo and send them to your customers automatically.

How to create invoices for architects and engineers

More about invoices

Estimates

Create your estimates in just 10 seconds. Create an invoice from an estimate with just 1 click.

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Electronic signature

Integrity, authenticity and non-repudiation guaranteed.

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Cloud storage

Cloud storage to manage your files from the cloud. Integration with Google Drive and Dropbox.

More about virtual disk

Remittances and bank receipts

Remittances and bank receipts for recurring payments.

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Accounting

All you need to manage your business easily.

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CRM

Customer and supplier management.

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Income and expenses management

With our visual dashboards you will be able to control your finances intuitively.

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Global vision

Global vision of your financial status at any time.

Collections and payments

Export all the information about your collections and payments.

Informes de empresa

¿Vas a preparar un proyecto que te va a suponer unos honorarios elevados? Asegúrate primero de que tu cliente es solvente consultando un informe de solvencia desde Contasimple.

Time tracking tool

Time tracking tool to help you calculate your billable hours. Also to control the working hours of your employees.

More about our time tracker

Easily download

Easily download the worked hours reports with all the inserted comments.

Presentación telemática

Exporta los ficheros de los modelos de la AEAT para subirlos digitalmente y hacer tu presentación telemáticamente.

Más información sobre presentación telemática

Contasimple app

Time tracker usable from Contasimple app too.

Support

If you have any doubt, you can always contact us by email, Facebook, Twitter or Linkedin. It will be a pleasure to assist you. Our team are experts in helping small business owners and self-employeds with their billing and accounting issues.

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How to create an invoice for architectural or engineering services

Our architect and engineer invoice templates create a unique invoice reference number automatically to comply with legal requirements. Your legal information and the one from your client will appear automatically once you have registered your customer in the program. Remember to modify the invoice date in case you are issuing the invoice in a different day from the one the service took place. Add the due date and terms of payment too.


Elements that your invoice should include

With Contasimple you will be able to invoice your services by project or by hours worked.


Project invoicing

Describe the concept of each service as detailed as possible using a “services” template, which will not have the quantity column. Add the net amount of the fixed fee to each concept like in the invoice template you will find above. enlace de facturas para autónomos de la construcción .


Invoice for hours worked

Describe your services as detailed as possible. Add your billable hours for each individual service. Add the net amount of your hourly rate. The program will calculate the total automatically. Add the percentage of taxes if required. You will find an example of hourly invoice template in this link .

Retención de IRPF en factura de arquitecto, ingeniero o perito

Choose a note to include in the invoice

In order to add additional information, like available payment methods and bank account number, just select it on “Notes on the invoice”.

Invoice note from architect, engineer or expert

How can I create a new note to be selected on the invoice?

To create a new note, click on "Manage note information", write a title for the new note, write the text that should appear in the invoice and click on "Insert":

How to create notes on architect, engineer or expert invoices

Which invoice template should I choose?

Contasimple has multiple invoice templates with different designs. If you don’t want the quantity column to appear in your invoice, just choose some template called "Services". If you would like the quantity column to appear to add the number of hours worked, choose any template but "Services" ones.


How to add a detailed description of each concept

If you would like to add a detailed description of each concept, just click on "Show advanced edition". A new text field will appear below each concept.

Add description of each concept in the architect, engineer or expert invoice

How can I apply a discount rate?

You have two options: to apply a discount rate for a specific customer, or apply a discount rate only for one or some invoice concepts.

When you create a customer, you can set a discount rate for them to apply to all concepts of your invoices. The subtotal of the invoice net amount will decrease accordingly:

Customer discount on architect, engineer or expert invoice

If you wish to apply a discount rate in one or some of the concepts of your invoice, just add the number of the percentage in the "% Discount" column. The subtotal of the net amount will decrease proportionally:

Discount on invoice from architect, engineer or expert

Invoice discounting or provision fund

Contasimple will also allow you to discount from the net amount the quantity received in advance. You will only have to add the negative sign before the advanced quantity.


Bill your customers from the Contasimple Billing App

The App to make invoices of Contasimple is designed to facilitate even more your daily tasks.

  • Create invoices, delivery notes and register your tickets.

  • Check your schedule of customers and suppliers.

  • View all your virtual disk documents.

Available for Android and iOS. Totally free!

App to make free invoices

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

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