# Invoices

> When sanda invoices you, what each line means, how GST appears on a tax invoice, where to find your invoices, and how to pay.

sanda invoices monthly in arrears, in AUD. Each invoice covers a period that has just ended, normally a calendar month, and lists the platform fee and each meter as its own line.

## Where to find your invoices

sanda emails each invoice to your workspace's owners and admins, and the email is the invoice. It carries every line and the total, so keep it for your records. The console does not list invoices.

If a bookkeeper or a finance inbox should receive them too, ask sanda support to add the address.

Invoices are paid by bank transfer. sanda does not take card payments, so it never holds card details. The bank details and payment terms are printed at the foot of each invoice, and the invoice has a **Reference** to quote when you pay. sanda keeps invoices for at least five years, as Australian tax law requires.

A trial pays nothing, so there is nothing to pay. See [Free trial](https://docs.sanda-os.com.au/billing/trial).

## What is on an invoice

An invoice shows who it is from, with sanda's ABN, and who it is for. It shows the period, the date it was issued and the reference, then the lines, then the total.

| Line | What it is | Unit |
|---|---|---|
| **sanda platform** · your edition | The flat platform fee. A part month says how many days it covers | Month, or day |
| **Warehouse storage** | The data your warehouses held, integrated over the period | GB-month |
| **Warehouse compute** · your edition | Compute, metered by the hour | Compute hour |
| **Managed sync runs** | Each successful run | Run |
| **AI** | One line for each model used, with its name | Million tokens |

Lines you may also see:

- **Lines sanda adds by hand,** such as how-to support hours on Basic and Standard, billed at A$150 an hour, or a discount.
- **An "included" AI line.** On invoices for periods before sanda began billing its own work on your data, that work appears at no charge, marked "included".
- **A line at zero.** A meter with nothing on it in the period can still appear, at zero.

The platform fee comes first, so you meet the flat part before the metered part. For how each meter is measured, see [Usage and metering](https://docs.sanda-os.com.au/billing/usage).

The usage lines are priced with the same arithmetic as **This month so far** under **Settings · Plan & budget**, so nothing on an invoice should be a surprise. For the platform fee and part months, see [How billing works](https://docs.sanda-os.com.au/billing).

## Tax invoices and GST

An invoice from sanda is one of two documents, and its heading says which.

- **Tax invoice.** When sanda is registered for GST at the time it issues the invoice, the document says **Tax invoice**, shows sanda's ABN, shows the subtotal, and shows GST as its own line with its rate. The total is labelled as including GST. The GST line is printed even when it is nothing.
- **Invoice.** When sanda is not registered for GST, the document says **Invoice**, has no GST line, and says in words that no GST has been charged and that sanda is not registered. It still carries sanda's ABN.

The kind is fixed when the invoice is issued. A document keeps the heading it was sent with, whatever sanda does afterwards. Read the heading on your own invoice to see which applies.

## If an invoice looks wrong

Ask before you pay. Questions about billing are free on every edition. Write to sanda support at hello@sanda-os.com.au with the invoice reference.

The terms say charges more than 14 days overdue suspend a workspace, and that suspension is not deletion. If you dispute a charge, say so early.

:::links
- [How billing works](https://docs.sanda-os.com.au/billing): The fee, the meters and the rules for a part month.
- [Usage and metering](https://docs.sanda-os.com.au/billing/usage): How each line is measured.
- [Budgets and AI limits](https://docs.sanda-os.com.au/billing/budgets-and-limits): Cap spend before it reaches an invoice.
:::