> ## Documentation Index
> Fetch the complete documentation index at: https://docs.iterapay.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Creating Invoice
Creating an Invoice (Create Invoice)
#### To issue a bill to a client, follow these steps:
1. Click the **New invoice** button. The creation form will open.
2. **Select invoice type**: Choose the invoice type.
* **One-time**: A one-time invoice for a fixed amount.
* **Static**: A reusable address for topping up with any amount.
3. **Name**: Enter a name (required).
4. **Description**: Enter a description (optional).
5. **Select** **payment** **methods**: Check the cryptocurrencies available for payment.
6. **Amount** **&** **Currency**: (For One-time only) Specify the amount and currency (e.g., USD). The system automatically converts it at the exchange rate at the moment of payment.
7. **Payment** **validity**: (For One-time only) Select the link validity period (default is 15 minutes). After the time expires, the link will become inactive to protect against exchange rate volatility.
8. **Service** **fee**: Review the service fee.
9. Click the **Create** button.
