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

# Applying discounts & tax

> Apply line-item and bill-level discounts, choose inclusive or exclusive tax, and understand how BillBasket calculates the final invoice total.

## See it on your device

<Tabs>
  <Tab title="Phone">
    <Frame>
      *Screenshot coming soon — Android phone view.*
    </Frame>
  </Tab>

  <Tab title="Tablet">
    <Frame>
      *Screenshot coming soon — Android tablet view.*
    </Frame>
  </Tab>

  <Tab title="Windows PC">
    <Frame>
      *Screenshot coming soon — Windows desktop view.*
    </Frame>
  </Tab>
</Tabs>

## Discounts

You can apply a discount at two levels:

* **Per line item** — a flat amount or percentage off a single product/service.
* **Bill-level** — a flat amount or percentage off the whole invoice total.

Both can be used on the same invoice; BillBasket applies line discounts
first, then the bill-level discount on the remaining total.

## Tax

Tax is calculated automatically based on:

1. The tax rate set on each product or service.
2. Any tax rule specific to the customer on this invoice — see [Per-customer
   tax settings](/customer-guide/parties/per-customer-tax).

The tax breakdown (rate and amount per line, plus the total) is shown before
you finish the sale and printed on the bill.

<Note>
  Tax field names shown (for example, HSN/SAC) follow the tax rules for your
  country/region and only appear where relevant.
</Note>