Free Excel invoice template or free invoicing software?

Every entrepreneur should have suitable and working tools available. We offer you a free Isolta invoicing software that is already used by thousands of satisfied entrepreneurs or a handy Excel invoice template.

Free invoicing software

  • Clear invoice templates
  • Use for as long as you like
  • Invoice archive
  • Automatic invoice numbering
  • Option to send e-invoices
  • List of invoices
  • Default settings for invoicing

Why are we giving out free invoicing software?

Free Excel invoice template

  • Ready-to-use invoice template
  • Copy invoice template into a new invoice
  • Possibility to edit invoice template

Why are you giving out free invoicing software?

We think that every entrepreneur benefit on using a tool for invoicing that is actually designed for invoicing. You can use Isolta for free with few invoices. However, when your amount of invoices and customers increase you can upgrade your account to a paid version. This is why we can offer a free invoicing software that meet the basic needs for invoicing.

We have been working among entrepreneurs for over 15 years, and entrepreneurship is close to our heart. Our duty is to ask, listen, and help – to develop the service according to your wishes.


Easy invoicing with the invoicing software

It is easy to invoice. Enter the customer, add the products or services and press send. Our program automatically handles the invoice- and reference numbering and also gives you the option to create invoices in different languages. In addition to this you can choose if you want to send your invoices traditionally in paper or electronically.

Take a look at the video and see how you create an invoice with the free version of Isolta.

Works on different devices

Anywhere. Anytime. Any device. As long as you have a web browser you’re golden.

Entrepreneurs favourite

Over 30 000 satisfied entrepreneurs are using Isolta's services.

Proven security

Isolta is up to the highest level of security. Audited by The Finnish Software Entrepreneurs Association.

Free customer service

We have a team of invoicing specialists helping you at every step of the way

Send your first invoice within minutes

Sign up for Isolta for free! No credit card needed. No commitments. Have a look around or start invoicing right away. Watch the video to see how easy it is to send your first invoice.

Great! Just activate your Isolta-account and it is ready for use.

The activation link of your user account has been sent to you by email .

Activate the account by clicking the link in the email..

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What happens when you sign up?

  1. Your account is created and you will receive a confirmation email. After the confirmation you can start invoicing.
  2. You will get all the features for free until you have more than 10 invoices / year.
  3. You can upgrade to paid versions when needed.

Instructions for the Excel invoice template

  1. Save the invoice template on your computer and open it with Excel.
  2. Fill in your company information in the fields E3, E4 and E5 and replace the Isolta logo with your own logo, or just remove it.
  3. Give every invoice a running invoice number (field L6) and add a reference number from the list of reference numbers that you have got from your bank (in field F54).
  4. Also fill in all the other basic elements for each invoice, such as term of payment, delivery date etc.
  5. If you want to fill in a description of your invoice add it in field C17.
  6. Fill in all information needed in the invoice rows. Based on the number of pieces (Column H), the duty-free unit price (Column J) and VAT-percentage (Column K), the total sum of the row (Column L) and the VAT-specification in the bottom of the invoice template is calculated.
  7. Print or save the invoice as a PDF-file and send it to your customer either by mail or e-mail.
  8. Save each invoice as a copy of the invoice template and name it according to the invoice numbering.
  9. Archive your invoices in folders that you name according to customers, month or year.

Most of the columns are locked to avoid breaking the invoice template when using it, however all the fields that need to be revised are open. You can unlock the other fields by using the "Protect and Share Workbook" tool under the "Review" tab.

Free invoicing software — pay only when your business starts to thrive

Completely free if you send invoices only occasionally. Reasonably priced for small businesses.


10 invoices per year


9,90/ Month + VAT Unlimited

With 10 invoices per year you get Isolta and all of its features free of charge.

E-invoices, printing service and checking customer's credit defaults are services with additional fee. As your business grows and your invoice limit is met, you can easily expand to a paid versions.

You can also earn extra invoices by recommending Isolta to your friends.

Pro version includes all the software features without restrictions.

E-invoicing, printing service and checking payment defaults are services with additional fee (see Price list of additional services).

The billing period is 12 months. It is possible to select a 3-month billing period at 11,90 € / per month + VAT.

Premium version is most effortless for the user. It includes all the features without restrictions. Payment control and debt collection services as well as other additional services can be added to the Premium version.

Payment control, debt collection service, e-invoicing, printing service, and checking payment defaults are services with additional fee (see Price list of additional services).

The billing period is 12 months. It is also possible to select a 3-month billing period at 22,90 € / per month+ VAT.

Features in all versions:

  • Cloud-based Use anywhere and anytime with any device. As long as you have a web browser you’re good to go.
  • Free customer support If you have any questions or need user support, we will help you for free.
  • Invoicing Create and send invoices with an ease, use different invoice templates and barcode.
  • Electronic invoicing Send invoices via e-mail or electronically.
    Email invoice 0€
    E-invoice 0,39€-0,59€
    Printing service 1,46€
  • 7 languages You can use Isolta in your preferred language and send invoices in English, German, Russian, Swedish, Finnish, Latvian, Lithuanian or Estonian
  • Customer management (CRM) Keep a timeline of your customers purchases, contacts and things that you have promised.
  • Product Register Speed up your invoicing process by adding frequently used products and services to Product Register.
  • Receivables Monitor your invoices with a glance (due, paid, unpaid, drafts).
  • Payment reminders Add penalty interest and expenses to a reminder and send the reminder to the customer
  • Sales reports Use reporting and search tools to know how your business is rolling. Keep your accountant happy with bookkeeping reports.
  • Quotes Create offers from invoice drafts.
  • Upcoming features We constantly develop Isolta according to our user feedback. Whenever we launch a new feature it is available for you right away. We take care of the updates, you focus on invoicing.
Jarno Stålhane
“If internet works, Isolta works. I have never had any problems.”
Jarno Stålhane
Henrik Tenhovirta
“Some of the best free software I have used”
Henrik Tenhovirta
Elementti web-kehitys ja konsultointi
Arttu Muukkonen
“Online system rocks immediately after the first tests”
Arttu Muukkonen
Suunnittelutoimisto Koskine & Muukkone Oy