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

# Invoices

> Generating, sending, and managing invoices.

# Invoices

Once a billing stage is ready, you generate an invoice from it. Arkata creates a professional PDF invoice with your firm's branding and details.

## Generating an invoice

1. Open the project's **Billing** tab
2. Find the stage marked "Ready to Invoice"
3. Click **Generate Invoice**
4. Arkata creates the invoice with an auto-generated number (e.g. `ARK-2025-001`)
5. Review the invoice details

## Invoice numbering

Arkata generates invoice numbers automatically using the format your firm configures (prefix + year + sequence). Numbers are sequential and cannot be reused.

## Invoice statuses

| Status             | Meaning                                    |
| ------------------ | ------------------------------------------ |
| **Draft**          | Created but not yet sent to the client     |
| **Sent**           | Delivered to the client                    |
| **Partially Paid** | Some payment received, balance outstanding |
| **Paid**           | Fully settled                              |
| **Cancelled**      | Voided — no longer valid                   |

## PDF generation

Every invoice can be downloaded as a PDF. The PDF includes:

* Your firm's name, address, and VAT number
* Client details
* Line items with quantities and prices
* VAT calculation
* Payment terms
* Total due

## Waiving line items

If you decide not to charge for something, you can **waive** individual line items. Waived items appear on the invoice as waived (showing the discount) but don't count toward the total. You can un-waive them if you change your mind.