> For the complete documentation index, see [llms.txt](https://hotelizer.gitbook.io/manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hotelizer.gitbook.io/manual/en/getting-started/timologisi.md).
# Invoicing
In order to be able to invoice a reservation and make the most of the Hotelizer, you need to understand exactly how this process works.
{% hint style="info" %}
In pricing we have four basic concepts, **billing,** **payment**, **bill** and **invoice.**
{% endhint %}
## Charges
In each reservation, the charges are created mainly from the rooms. Extra charges can be added, manual charges, etc. Each charge belongs to the reservation and to a specific room. From the total charges, we get the total amount of room and the reservation.
The basic information of a charge are the following:
| Status | Description |
| ------------------------- | --------------------------------------------------------------------------------------------------- |
| **Name** | The name of the charge which will appear on the invoices |
| **Date** | Each charge has a specific date |
| **Service (Department)** | We can divide our hotel into different revenue segments so all charges must belong to one segment |
| **Taxes** | Most charges (excluding Accommodation Tax) have various taxes such as **VAT** and **Municipal Tax** |
| **Price** | Price of charge |
#### Room charges
When a reservation is made in Hotelizer, either by a user or by a channel, it has a price per night, depending on the price list that has been selected. From these prices are created the corresponding charges for each night. So if we have for example a night worth 100 €, then a charge of the same value will be created. If you need to change the price list and put the night price, for example, at € 120, then the corresponding charge will be updated again.
#### Extra charges
A reservation can have various extras, such as a bottle of wine, etc.
The basic information of an extra are the following:
| Status | Description |
| --------------- | --------------------------------------------------------------------------------------------------- |
| **Name** | The name of the extra, is the name which all the charges will get. |
| **Charge type** | The billing type determines how many charges will be created |
| **Service** | We can divide our property into different revenue segments so all extras must belong to one segment |
| **Taxes** | The extras have various taxes such as **VAT** and the **Municipal** |
| **Price** | The price of the extra |
The extras **create charges** with the **same features,** as the extra itself and the number of charges depends on the type of extra charge. The type of charge is essentially something like a multiplier and is related to the room.
The most commonly used types of charges are:
| Charge type | Description |
| ----------------------- | ------------------------------------------------------------- |
| **Per night** | Create charges per night of stay |
| **Per guest** | Create charges per guest |
| **Per guest per night** | Create charges for each guest per night of stay ex. breakfast |
| **Quantity** | Create only one charge ex. a bottle of wine |
#### Manual charges
Many times, we need to charge the guest something extraordinary. For example for some damage done to the room, etc. So in the reservation, we can directly add the charge by filling in the required fields.
## Payments
At each reservation, you can pass the payments made by your guests. Each payment is taken into account in the booking totals and that's how a **balance** arises.
The basic information of an extra are the following:
| Status | Description |
| ---------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Payment type** | The type of payment. |
| **Date** | Each payment must have a specific date. |
| **Amount** | The amount of the payment. |
| **Payment** | If you have received the money then this option should be checked. This option is available so you can make a future payment as a note and receive reminders. |
{% hint style="info" %}
Each payment to be counted in the calculation of the booking balance must be marked as **Paid**\ 
{% endhint %}
## Open bills
The open bill is a **proforma** before the final document. You can **edit it**, **print it**, etc. and when you are ready you can issue it to create the final invoice.
{% hint style="info" %}
The open account is **not** an official invoice!
{% endhint %}
## Invoices
The invoices are the **official tax information** that you should give to your customers and your accountant.
---
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