Free and online invoicing software

Free Invoicing Software for Small Businesses

Send unlimited invoices and stay in control of your business with Billy Basic. Billy invoicing software is intuitive and easy to use, and comes with an interface available in English or Danish. Try every feature with our 30 day free Billy Premium trial and continue on a free Billy Basic subscription. No credit card required.

Billy invoicing software and Billy logo

With Billy Basic you can:

  • Send unlimited invoices for free
  • Use free invoice templates
  • Change the currency and add a discount
  • Enjoy free support seven days a week
 Billy free online invoicing software and testimonial from Mads Veiby

" I can highly recommend Billy, as they have the user in mind (Apple mindset) over other accounting programs where technology is at the center (Microsoft mindset)."

Mads Veiby, founder of mobile operator M1

Jonas Bengtsen and Billys free online invoicing software

"I chose Billy bookkeeping software since as a freelancer I only need to send an invoice once in a while. Billy is really intuitive and easy to use."

Jonas Bengtsen, freelancer

Free invoice templates

With Billy Basic you get free and easy to use online invoicing software. The program is based on simplicity and user-friendliness, and is the best accounting software for small businesses. It only takes a few clicks to create and send an invoice. The handy overview functionality gives you free invoicing software with a simple overview, so you know exactly which invoices your customers have paid already and which invoices are still outstanding. Billy Basic lets you do all that – and it’s always free.


Manage your contacts easily when using Billy's free invoicing software by using the free software as your address book. Here you can import contacts from your mobile or iPad and make sure that you always have full control of your customers.

Billy gives you the ability to import and export your contacts. With this feature you can easily add new contacts to the program by loading a CSV file.

Security and Backup

At Billy we use SSL security like your online banking solution. Additionally, Billy's servers are configured in such a way that all your data is secured in multiple copies. If a server should fall out, another server is immediately ready to take over, without any delay or loss of data.

Billy automatically backups multiple times each day. A local backup on your private computer is also available if desired or needed.

Free Support 7 Days a Week

As a Billy user you have access to free support 7 days a week. You can search among numerous help articles online or contact our helpdesk where we are ready to help 09-22 on weekdays and 11-15 on the weekend.

The helpdesk is available through email at