This article details how charges are calculated when a collaborator is added or removed.
Adding a collaborator
All of our paid plans are per-user based, which means that if you invite a collaborator(even if that user doesn't accept the invite and it remains a pending invite), you will be charged for an additional subscription. Here is how that charge is calculated.
When you invite the collaborator, a new invoice is created for the remaining billing period since now there is an additional collaborator for whom a subscription is needed.
The billing date remains the same as before.
We calculate the cost of the new subscription based on the time remaining until the billing date.
The invoice is prorated accordingly.
You are charged for the new invoice(if there is any amount due).
Here is an example:
Person 1 has a subscription, which is 30$/month. Person 1 adds Person 2 to their workspace 1 day after they started their subscription.
A new invoice is created for the subscription, which would be 60$, putting the amount Person 1 pays for the monthly subscription to 60$/month(since there are 2 people in the workspace).
The amount Person 1 paid for the subscription is deducted from the new invoice, and the system calculates how much the remaining time until the billing date costs, which is 29$.
This 29$ becomes how much we charge for the added collaborator.
The new invoice for the 29$ amount is charged to Person 1.
In the following months, the charge will be 60$/month as this deduction is only when a collaborator is added.
Removing a collaborator
When you remove a collaborator, the remaining time for their subscription is deducted from your next charge.
When you remove the collaborator, we calculate how much time remains for their subscription until the billing date.
The remaining time is added as a discount to the next charge
The billing date remains the same as before, and you will be charged for the original amount minus the remaining time from the collaborator(in case there was only 1 additional collaborator).
Here is an example:
Person 1 and Person 2 are part of the same workspace, which is upgraded to a plan for which they pay 2 x 30$/month = 60$/month.
Person 1 removes Person 2 from the workspace 1 day before the subscription is due to renew.
A new invoice is created for the subscription, which would be 30$, since with the removal of Person 2, Person 1 will only pay for themselves.
The unused time is calculated from the original subscription. In this case, since the original subscription was used for almost the full period(only 1 day remained before it was supposed to renew), the unused time is 1 day. This amount is around 1$.
This 1$ is then subtracted from the 30$, putting the new invoice to 29$.
The new invoice for the 29$ is charged to Person 1 on the original billing date.
In the following months, the charge will be 30$/month as this deduction is only when the collaborator is removed.