How do our invoices work?

Example invoice

DescriptionQtyUnit priceAmount
16 Aug 2024 - 1 Sep 2024
Remaining time for 7 x Langdock Team after 16 Aug7€67.74
Unused time for Langdock team after 16 Aug6-€58.06
Remaining time for 8x Langdock Team after 24 Aug9€40.65
Unused time for Langdock team after 24 Aug7-€31.61
1 Sep 2024 - 1 Oct 20249€20.00€180.00
Subtotal€198.72
Total excl. VAT€198.72
VAT - Germany (19% on €198.72)€37.76
Total€236.48

Our invoices consist of two parts:

  • The second section (1 Sep - 1 Oct) calculates the price for the upcoming month based on the number of users in the workspace

  • The first section corrects the price for the previous month if a user has been added or removed from the workspace

Section 2: Upcoming month

The second section is calculated as follows:

Number of users x price per seat

For example:

9 users x € 20 EUR = € 180

Section 1: Past month

The first section is calculated as follows:

In the previous invoice, the amount paid billed was € 120, based on 6 workspace users (see how the second section above is calculated).

This invoice corrects this amount as 3 users were added to the workspace:

  • One user was added on 16 Aug, as shown by the remaining time for 7 users in the workspace in the first row. For 15 days, 7 licenses cost €67.74.

  • The unused time below deducts the amount already paid in the previous invoice. These 6 licenses in the previous invoice lead to €58.06, deducted from the €67.74.


Two more users were added on 24 Aug, leading to €40.65 for the remaining month (9 users for 8 days). As 6 users were already billed in the previous invoice and 1 user was already charged in the remaining time from 16 Aug above, the price for 7 users is deducted from this amount (€31.61).


The total amount consists of the correction of the current month plus the price for the next month:

Section 1 price + Section 2 price = Total amount

Price of the current month + Price of the next month = Total amount

= [Price for 1 license for 15 days + Price for 2 licenses for 8 days] + Price for the next month = Total amount

= [ ( € 67.74 - € 58.06 ) + ( € 40.65 - € 31.61 ) ] + € 180 = € 198.72