Charge models
Percentage
Select the percentage charge model if you want to apply a percentage and a
fixed fee on transactions (e.g. bank transfers, ATM withdrawals, etc.).
This charge model is generally used with billable metrics that allow users to
calculate the total amount of transactions (e.g.
Consider the following list of events:
Therefore, for the fourth transaction, the charge will be $0.10 x 1 event + 1.2%
of $50 = $0.70.
sum aggregation type and
amount defined as the event property -
learn more).
You can define several parameters for the percentage charge model, including:
- Percentage rate: charge rate that applies to the total amount (e.g. 1.2% on transactions);
- Fixed fee (optional): fee that applies to each event ingested during the billing period (e.g. $0.10 per transaction);
- Free units (per event - optional): number of events that are not subject to the fixed fee;
- Free units (total amount - optional): amount that is not subject to the charge rate;
- Per-transaction spending minimum (per event - optional): sets the minimum amount of spending required for each individual transaction; and
- Per-transaction spending maximum (per event - optional): sets the maximum amount of spending required for each individual transaction.
Premium feature ✨: only users with a premium license can define a per-transaction spending minimum and maximum for the percentage pricing model.
Please contact us to get access to Lago Cloud and Lago Self-Hosted Premium.
Configuration of the percentage charge model
| Event | Amount | Total number of events | Total amount | Result |
|---|---|---|---|---|
| Transaction 1 | $200 | 1 free event (out of 3) | $200 ($500 free) | No charges |
| Transaction 2 | $100 | 2 free events (out of 3) | $300 ($500 free) | No charges |
| Transaction 3 | $100 | 3 free events (out of 3) | $400 ($500 free) | No charges |
| Transaction 4 | $50 | 4 events (free units exceeded) | $450 ($500 free) | Charge |