> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dentolize.com/llms.txt
> Use this file to discover all available pages before exploring further.

# How do I collect the consultation fee, and do I add it again on the invoice?

> Collect the diagnostic fee on the appointment, when booking or later, without charging it twice.

**Short answer:** collect it on the appointment (**Collected** when booking, or **Collect Diagnostic Fees** later); it creates its own invoice and payment, so don't add it again on the treatment invoice.

**1. When booking**

In the **Diagnostic Fees** section of the appointment form, choose **Collected**, enter the amount and payment method, then click **Submit**.

**2. Or later, from the appointment**

Click the appointment, then **Collect Diagnostic Fees**. Enter the amount (tax is added automatically), the payment method and the treasury, and click **Save**.

**3. Or add it to the next invoice**

When booking, choose **Add to Next Invoice**: the fee is added to the patient's next invoice instead.

**4. Check the result**

An invoice and a payment are created for the fee. You'll find them in **Finances → Invoices** and **Finances → Payments**, not in the chart.

![Collect Diagnostic Fees window](https://mintcdn.com/dentolize/hgKp7MuvW72SFURD/images/en/reception/collect-fees.webp?fit=max\&auto=format\&n=hgKp7MuvW72SFURD\&q=85\&s=f96b64e2923988ad388877f6c5f1c3f9)

> [!WARNING]
>
> Already collected? Don't click **Add Diagnostic Fee** when you create the treatment invoice, or the patient is charged twice.

> [!NOTE]
>
> The diagnostic fee option can't be changed after the appointment is created. If you chose **None**, use **Collect Diagnostic Fees** later.

**Full guide:** [Collecting fees from patients](https://docs.dentolize.com/en/reception/fees-collections.md)

***

> [card] Still stuck?
>
> Send us a message in **System Chat** inside Dentolize with a screenshot, and tell us which step didn't work. Tip: next time, search this site first. Most answers take less than a minute.


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